Water supply mechanism of fire-fighting unmanned aerial vehicle

Abstract

The present application belongs to the technical field of unmanned aerial vehicle fire fighting, and particularly relates to a water supply mechanism of a fire-fighting unmanned aerial vehicle, which comprises a support assembly, a large water tank arranged at the top end of the support assembly, two drive assemblies arranged side by side at one side of the support assembly, a small water tank arranged in each drive assembly, the drive assemblies being used to drive the small water tank to approach or move away from the large water tank, the small water tank being communicated with the large water tank when the small water tank approaches the large water tank, and the small water tank being not communicated with the large water tank when the small water tank moves away from the large water tank, and a clamping assembly detachably arranged at the bottom end of the fire-fighting unmanned aerial vehicle, the small water tank being detachably arranged at the bottom end of the clamping assembly, the clamping assembly being used to clamp the small water tank at the bottom end of the fire-fighting unmanned aerial vehicle for fire fighting, the clamping assembly being used to transfer the small water tank to the drive assembly when the fire-fighting water in the small water tank is used up, and the drive assembly being used to drive the small water tank to a position close to the large water tank to supplement the fire-fighting water in the small water tank. The present application can improve the fire-fighting work efficiency and work capacity of the fire-fighting unmanned aerial vehicle.

Description

Technical Field

[0001] This invention belongs to the field of drone firefighting technology, and in particular relates to a water supply mechanism for a firefighting drone. Background Technology

[0002] In recent years, fire accidents have occurred frequently. Due to inadequate control measures, firefighters are often unable to reach the scene when a fire breaks out, making firefighting efforts difficult. Furthermore, with the development of modern urban construction, the height of high-rise buildings is constantly being increased, bringing numerous challenges to fire rescue operations. Especially when dealing with fires in high-rise buildings or fires involving flammable and explosive materials, the inability of firefighters to approach or enter the disaster site hinders timely control of the fire and prevention of further damage.

[0003] In light of this, firefighting drones are increasingly being used in firefighting operations. Many fire departments in China have successfully used drones for fire scene reconnaissance and monitoring, and for dropping rescue supplies, with significant results. Water-spraying firefighting drones consist of the drone body and water nozzles mounted on it. One end of the nozzle is connected to a water supply pipe, and the inlet end of the pipe is connected to a ground-based water supply system. In existing technology, a water supply pipe needs to be connected between the water-spraying firefighting drone and the water supply system, allowing water from the system to reach the drone's nozzles for continuous water spraying. Furthermore, to improve the drone's power and continuous operating capacity, power is sometimes supplied from the ground, requiring a power line between the drone and the ground. However, the water supply pipes and power lines themselves have considerable weight, especially when the pipes are full of water, requiring a significant lifting force to hoist them. As firefighting drones continue to fly at higher altitudes, the weight of water supply pipes and power lines also increases, severely limiting the flight altitude of firefighting drones and making it difficult for them to conduct firefighting operations at medium and high altitudes.

[0004] Therefore, it is necessary to design a water supply mechanism for firefighting drones to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a water supply mechanism for firefighting drones to solve the above-mentioned problems and improve the firefighting efficiency and capabilities of firefighting drones.

[0006] To achieve the above objectives, the present invention provides the following solution: a water supply mechanism for a fire-fighting drone, comprising...

[0007] The supporting components have a large water tank at the top.

[0008] Two drive components are arranged side by side on one side of the support component. The drive components are used to place a small water tank and to drive the small water tank to move closer to or away from the large water tank. When the small water tank moves closer to the large water tank, the two are connected. When the small water tank moves away from the large water tank, the two are not connected.

[0009] A clamping assembly is detachably mounted on the bottom of the firefighting drone. The small water tank is detachably mounted on the bottom of the clamping assembly. The clamping assembly is used to clamp the small water tank on the bottom of the firefighting drone for firefighting. When the firefighting water in the small water tank is used up, the clamping assembly is used to transfer the small water tank to the driving assembly, and the driving assembly drives the small water tank to a position close to the large water tank to replenish the firefighting water inside the small water tank.

[0010] According to the present invention, a water supply mechanism for a fire-fighting drone includes a clamping assembly comprising a positioning plate, hooks at the four corners of the positioning plate, two adjusting rods fixedly connected to the bottom center of the positioning plate, the adjusting ends of the two adjusting rods being far apart from each other, an adjusting plate fixedly connected to the adjusting end of each adjusting rod, connecting blocks fixedly connected to both ends of the adjusting plate, two positioning rods fixedly connected to the bottom of the positioning plate via several fixing blocks, the two positioning rods being symmetrically and parallelly arranged on both sides of the adjusting rods, the connecting blocks being slidably sleeved on the positioning rods, and clamping parts being fixedly connected to the bottom ends of the two connecting blocks located on the same adjusting plate, the small water tank being detachably connected between the two clamping parts.

[0011] According to the present invention, a water supply mechanism for a fire-fighting drone includes a clamping part comprising a connecting groove, the opening of which faces downward and its top end is fixedly connected to the bottom end of a connecting block. An elastic part is provided inside the connecting groove, and the bottom end of the elastic part is fixedly connected to the top end of a vertically arranged connecting rod. A snap-fit ​​rod is fixedly connected between the bottom ends of the two connecting rods. The snap-fit ​​rod is horizontally arranged, and its cross-section is triangular. The inclined surface of the snap-fit ​​rod faces downward and is close to the small water tank.

[0012] According to the present invention, a water supply mechanism for a fire-fighting drone includes an elastic part comprising a slide rod, the slide rod being fixedly disposed inside the connecting groove, an open slider being slidably sleeved on the outer side of the slide rod, the open slider being slidably contacting the inner sidewall of the connecting groove, the open slider being fixedly connected to the top end of the connecting rod, and a spring being sleeved on the outer side of the slide rod, one end of the spring being fixedly connected to the inner sidewall of the connecting groove, and the other end of the spring being fixedly connected to the open slider.

[0013] According to the present invention, a water supply mechanism for a fire-fighting drone is provided, wherein the bottom end of the small water tank is connected to one end of a bend pipe, and the other end of the bend pipe is fixedly connected to a high-pressure nozzle.

[0014] According to the present invention, a water supply mechanism for a fire-fighting drone includes a water outlet pipe fixedly connected to the bottom of one side wall of a large water tank, the water outlet pipe being connected to the outlet end of a high-pressure water pump, the high-pressure water pump being located inside the large water tank, a connecting pipe fixedly connected to one side wall of a small water tank, the connecting pipe being detachably connected to the water outlet pipe via a connecting pipe, a first electrically controlled one-way valve being fixedly embedded inside the connecting pipe, a first pressure sensing ring being provided on the side of the first electrically controlled one-way valve near the connecting pipe, a second electrically controlled one-way valve 1 being fixedly embedded inside the connecting pipe, and a second pressure sensing ring being fixedly connected to the end of the connecting pipe.

[0015] According to the present invention, a water supply mechanism for a fire-fighting drone includes a drive assembly comprising a fixed plate, the fixed plate being horizontally arranged and one end being fixedly connected to the support assembly, a support wheel being provided at the bottom of the other end of the fixed plate, a strip-shaped hole being provided in the middle of the fixed plate, a drive unit being fixedly connected to the top of the fixed plate, and a small water tank being placed at the top of the drive unit.

[0016] According to the present invention, a water supply mechanism for a fire-fighting drone includes a drive unit comprising a first motor, the first motor being fixedly connected to one end of the top of a fixed plate, a horizontally arranged lead screw being coaxially fixedly connected to the output end of the first motor, a lead screw seat being rotatably connected to the other end of the lead screw, the lead screw seat being fixedly connected to the other end of the top of the fixed plate, a lead screw slider being threadedly connected to the outer wall of the lead screw, a movable groove being fixedly connected to one side wall of the movable groove, the bottom end of the movable groove slidingly contacting the top end of the fixed plate, a clearance opening being provided in the bottom wall of the movable groove, a smooth rod slider being fixedly connected to the other opposite side wall of the movable groove, a smooth rod being slidably inserted inside the smooth rod slider, the smooth rod being parallel to the lead screw, one end of the smooth rod being fixedly connected to the support assembly, and the other end of the smooth rod being fixedly connected to the top end of the fixed plate via a smooth rod seat.

[0017] According to the present invention, a water supply mechanism for a fire-fighting drone is provided, wherein the inner sidewalls of the moving trough are all configured as smooth transition surfaces.

[0018] According to the present invention, a water supply mechanism for a fire-fighting drone includes a support component comprising a fixed groove, four casters at the bottom corners of the fixed groove, a large water tank at the top of the fixed groove, and a water inlet pipe on the top wall of the large water tank.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] This invention features a support component capable of supporting a large water tank. By pre-filling the large water tank with fire-fighting water and using the support component to transport it to the vicinity of the fire-fighting location, a continuous supply of fire-fighting water can be provided to the fire-fighting drone. A clamping component allows a small water tank filled with fire-fighting water to be attached to the bottom of the fire-fighting drone. The drone then transports the small water tank to the fire location for spraying and extinguishing. Once the fire-fighting water in the small tank is depleted, the drone transfers it to a drive component. The drive component connects the small water tank to the large water tank, allowing the large water tank to replenish the small water tank, which is then used by the drone for continued fire-fighting operations. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described 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 schematic diagram of the overall invention;

[0023] Figure 2 This is a schematic diagram of the clamping component of the present invention;

[0024] Figure 3 This is a schematic diagram of the small water tank of the present invention;

[0025] Figure 4 This is a cross-sectional view of the connecting pipe of the present invention;

[0026] Figure 5 This is a cross-sectional view of the connecting groove of the present invention.

[0027] The components include: 1. Fixed groove; 2. Casters; 3. Large water tank; 4. Inlet pipe; 5. Outlet pipe; 6. Connecting pipe; 7. Fixed plate; 8. Strip hole; 9. Support wheel; 10. First motor; 11. Lead screw; 12. Lead screw seat; 13. Lead screw slider; 14. Smooth rod; 15. Smooth rod seat; 16. Smooth rod slider; 17. Moving groove; 18. Clearance opening; 19. Small water tank; 20. Positioning plate; 21. Hook; 22. Adjusting rod; 23. Adjustment... 24. Plate; 25. Connecting block; 26. Fixing block; 27. Positioning rod; 28. Connecting groove; 29. ​​Connecting rod; 30. Connecting pipe; 31. Bend; 32. High-pressure nozzle; 33. Second motor; 34. Driving gear; 35. Driven gear; 36. First electrically controlled check valve; 37. First pressure sensing ring; 38. Second pressure sensing ring; 39. Second electrically controlled check valve; 40. Opening slider; 41. Slide rod; 42. Spring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] As a new industrial technology, drone-based firefighting has been widely applied in various fields. In China, many fire departments have successfully used drones for fire scene reconnaissance and monitoring, and for dropping rescue supplies, with very significant results. During the Tianjin explosion rescue operation, various departments also used drones to conduct high-altitude reconnaissance of the accident site, providing some reference information for rescue decisions.

[0030] A comprehensive solution for accurate, intuitive, and complete fire scene analysis data can provide timely information for on-site rescue. However, multi-functional firefighting drones integrating reconnaissance and strike capabilities, especially those capable of operating near the fire, are extremely rare due to technical, engineering, and financial constraints. Experts believe that with the popularization of technology, drones are gradually entering the public eye, with industrial-grade drones increasingly being applied in various fields, playing their role, especially in high-risk areas like firefighting. Using drones to replace some human labor is of paramount importance to the firefighting industry. Therefore, we interviewed companies specializing in industrial-grade drones to understand the importance and applications of drones in firefighting. Combining this with the practical needs of fire brigades, drones can play many roles within the firefighting force.

[0031] The low- and medium-altitude monitoring system for unmanned aerial vehicles (UAVs) features high mobility, low operating costs, and simple maintenance. It possesses rapid, real-time ground surveillance capabilities and represents a novel system for rapid acquisition of real-time television and infrared imaging at low and medium altitudes. This system enables early detection of forest fires in remote areas inaccessible to ground patrols and provides accurate and timely information on the dynamics of major forest fires. It also addresses challenges such as the inability of aircraft to fly at night or the inability to fly due to reduced visibility caused by smoke. As a powerful supplement to existing forestry monitoring methods, it offers unique advantages in resource and environmental monitoring in areas inaccessible by vehicles and personnel, forest fire monitoring, and rescue command. In particular, long-endurance, high-payload UAVs will undoubtedly see widespread application in forest fire monitoring, prevention, suppression, and post-disaster assessment.

[0032] Drones are not only a weapon of war, but are now also appearing in the civilian sector. They can be used for delivery and are a popular product among model aircraft enthusiasts. Now, this technology is being applied to city streets to enhance citizen safety and reduce losses caused by urban fires.

[0033] When a disaster occurs, using drones for disaster reconnaissance offers several advantages. First, they can be deployed flexibly and mobilely, regardless of terrain or environment, especially in urgent, difficult, and dangerous disaster sites where reconnaissance teams are unable to conduct their own investigations. Second, drone reconnaissance significantly improves efficiency, allowing for the immediate identification of key factors in disasters and enabling commanders to make informed decisions. Third, it effectively mitigates casualties by preventing people from entering hazardous environments such as toxic, flammable, and explosive materials, while providing a comprehensive and detailed understanding of the situation on-site. Fourth, drones can be integrated with detection modules for remote monitoring. For example, integrating combustible gas detectors and toxic gas detectors allows for remote monitoring of relevant gas concentrations at flammable, explosive, and chemical accident sites, thereby obtaining crucial information about dangerous areas.

[0034] The role of drones is not limited to disaster reconnaissance. The disaster and accident scenes faced by fire brigades are often rapidly changing. During the disaster response process, using drones for real-time monitoring and tracking can provide accurate information on changes in the disaster situation, enabling command centers at all levels to grasp the dynamic disaster situation in a timely manner and make rapid and accurate countermeasures to minimize losses.

[0035] Utilizing drones to integrate or flexibly carry critical equipment can assist in rescue operations in various situations. First, integrating voice and amplification modules to transmit instructions. Using drones to shout or relay instructions from the air is more effective than ground-based shouting, especially suitable for rescues at high altitudes and in high-rise buildings, effectively conveying critical commands. Second, opening up rescue routes. For example, in water and mountain rescues, existing throwing devices have significant limitations in terms of environment and range, and lack accuracy. Using rescue drones to assist in throwing ropes or carrying critical equipment (such as respirators and rescue ropes) can create new routes and open lifelines accurately and efficiently. Third, integrating communication equipment, using drones as communication relays. For example, in environments with communication disruptions such as earthquakes or mountainous terrain, drones integrated with relay modules can act as temporary relay stations, establishing wireless communication links in extreme environments. Fourth, using drones for emergency mapping. By integrating aerial photography and mapping modules into drones, the situation at disaster and accident sites can be fully recorded and transmitted to the on-site command center. Emergency mapping of the terrain and other features at disaster sites can be conducted to provide strong support for rescue efforts.

[0036] Aerial photography enables comprehensive real-time monitoring of high-rise and super high-rise buildings, timely detection of fire hazards, real-time control of fire situations at fire scenes, storage of building fire inspection or on-site fire images, integration of aerial monitoring videos with other security or fire monitoring systems, support for large-capacity, long-term image storage and retrieval, and remote viewing and control of some functions via smart terminals.

[0037] With the increasing number of fires and fire rescue operations each year, the transmission of fire images at traditional disaster sites is highly susceptible to external environmental factors. For example, wired image transmission can be affected by external conditions, leading to inaccurate fire information and impacting fire rescue decisions. Therefore, utilizing drones for filming, communication, and monitoring of fire scenes can leverage the applicability and stability of the equipment. Furthermore, drone systems offer relatively low application costs, wide geographical applicability, and high transmission speeds, complementing modern fire department image transmission systems. This enables effective monitoring and control of relevant images and data at fire scenes, allowing drones to be effectively used in fire rescue operations.

[0038] The application of drones in fire rescue is mainly reflected in the following aspects:

[0039] The first six minutes after a fire breaks out are the optimal time to extinguish it, with the golden window being only 30 seconds. Rapid response is a crucial capability for fire brigades. Drones, with their advantages of speed, flexibility, and ease of operation, can quickly reach the fire site after it occurs. Equipped with high-definition cameras and infrared thermal imaging equipment, drones can monitor the fire scene in real time. They can fly over the fire, providing real-time images and videos to help firefighters understand the fire's spread and location, guiding their firefighting efforts. Furthermore, drones can carry gas sensors to monitor the concentration of harmful gases in the fire, helping firefighters take timely protective measures.

[0040] In fire search and rescue operations, drones can be equipped with high-definition cameras and infrared thermal imaging sensors to quickly scan the fire area from the air, locating trapped personnel or other potential fire hazards. Drones can hover at low altitudes over the fire, using high-definition and thermal images to pinpoint the location of trapped individuals and identify fire hazards, providing crucial information for rescue operations.

[0041] Drone-based aerial firefighting systems utilize fire extinguishing equipment such as water tanks, foam tanks, and dry powder tanks. By controlling the drone, these devices are accurately deployed to the fire scene, enabling rapid extinguishing of the fire. Another advantage of drone-based aerial firefighting technology is its ability to hover at low altitudes over the fire, precisely targeting the fire source and avoiding potential problems such as accidental injury and secondary combustion that can occur with traditional firefighting methods.

[0042] Drones can carry life-saving equipment, medical supplies, and other resources, quickly delivering them to locations in need to provide emergency relief support. This is especially important for areas that are difficult to reach due to fires, particularly when the fire is spreading rapidly or transportation is disrupted.

[0043] In the event of natural disasters or emergencies, communication infrastructure may be damaged or disrupted. Drones can be rapidly deployed, equipped with communication devices, to provide temporary communication support, helping disaster-stricken areas maintain emergency communication with the outside world and assisting in rescue and disaster relief efforts. Drones can also provide temporary communication support to firefighters. Especially when communication is difficult at fire scenes, drones can act as communication relay stations, transmitting signals over long distances.

[0044] During a fire, roads may be blocked or congested, preventing rescue vehicles from reaching the scene. Drones can monitor road conditions in real time, including traffic conditions and road closures. This allows the command center to promptly dispatch traffic police and rescue vehicles based on the drone's monitoring information, ensuring that rescue vehicles can reach the fire scene quickly.

[0045] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] Reference Figures 1 to 5 As shown, the present invention provides a water supply mechanism for a fire-fighting drone, including a support assembly and a large water tank 3 at the top;

[0047] Two drive components are arranged side by side on one side of the support component. The drive components are used to place the small water tank 19 and to drive the small water tank 19 to move closer to or away from the large water tank 3. When the small water tank 19 moves closer to the large water tank 3, the two are connected. When the small water tank 19 moves away from the large water tank 3, the two are not connected.

[0048] The clamping assembly is detachably mounted at the bottom of the fire-fighting drone. The small water tank 19 is detachably mounted at the bottom of the clamping assembly. The clamping assembly is used to clamp the small water tank 19 at the bottom of the fire-fighting drone for fire extinguishing. When the fire-fighting water in the small water tank 19 is used up, the clamping assembly is used to transfer the small water tank 19 to the drive assembly, and the drive assembly drives the small water tank 19 to a position close to the large water tank 3 to replenish the fire-fighting water inside the small water tank 19.

[0049] Furthermore, the clamping assembly includes a positioning plate 20, with hooks 21 at each of the four corners. Two adjusting rods 22 are fixedly connected to the center of the bottom of the positioning plate 20, with the adjusting ends of the two adjusting rods 22 being far apart from each other. An adjusting plate 23 is fixedly connected to the adjusting end of each adjusting rod 22. Connecting blocks 24 are fixedly connected to both ends of the adjusting plate 23. Two positioning rods 26 are fixedly connected to the bottom of the positioning plate 20 through several fixing blocks 25. The two positioning rods 26 are symmetrically and parallelly arranged on both sides of the adjusting rods 22. The connecting blocks 24 are slidably sleeved on the positioning rods 26. The bottom ends of the two connecting blocks 24 located on the same adjusting plate 23 are fixedly connected to a clamping part. The small water tank 19 is detachably connected between the two clamping parts.

[0050] As an additional embodiment of the present invention, the hooks 21 at the four corners of the positioning plate 20 are adjustable. By adjusting the different positions of the hooks 21 on the positioning plate 20, the clamping assembly can be mounted on drones of different sizes, thereby improving the versatility of the present invention.

[0051] Furthermore, the clamping part includes a connecting groove 27, the opening of the connecting groove 27 faces downward and the top end is fixedly connected to the bottom end of the connecting block 24. An elastic part is provided inside the connecting groove 27, and the bottom end of the elastic part is fixedly connected to the top end of a vertically arranged connecting rod 28. A snap-fit ​​rod 29 is fixedly connected between the bottom ends of the two connecting rods 28. The snap-fit ​​rod 29 is horizontally arranged, the cross-section of the snap-fit ​​rod 29 is triangular, and the inclined surface of the snap-fit ​​rod 29 faces downward and is close to the small water tank 19.

[0052] Furthermore, the elastic part includes a slide rod 41, which is fixedly disposed inside the connecting groove 27. An openable slider 40 is slidably sleeved on the outside of the slide rod 41. The openable slider 40 slides in contact with the inner wall of the connecting groove 27. The openable slider 40 is fixedly connected to the top end of the connecting rod 28. A spring 42 is sleeved on the outside of the slide rod 41. One end of the spring 42 is fixedly connected to the inner wall of the connecting groove 27, and the other end of the spring 42 is fixedly connected to the openable slider 40.

[0053] Furthermore, the bottom of the small water tank 19 is connected to one end of a bend 31, and the other end of the bend 31 is fixedly connected to a high-pressure nozzle 32.

[0054] Two locking blocks are fixedly connected to the two opposite outer walls of the small water tank 19, and the locking blocks enable the small water tank 19 to be detachably connected to the locking rod 29.

[0055] As an additional embodiment of the present invention, one end of the bend 31 is rotatably connected to the bottom end of the small water tank 19. A second motor 33 is fixedly connected to the bottom end of the small water tank 19. A drive gear 34 is fixedly connected to the output end of the second motor 33. A driven gear 35 is fixedly connected to the outside of the bend 31. The driven gear 35 and the drive gear 34 mesh with each other. The second motor 33 drives the drive gear 34 to rotate, thereby adjusting the rotation angle of the bend 31. This allows the high-pressure nozzle 32 to adjust the direction of the high-pressure fire water sprayed out, thereby increasing the fire extinguishing range.

[0056] As an additional embodiment of the present invention, the small water tank 19 is composed of an upper tank and a lower tank. The lower tank is slidably disposed inside the bottom end of the upper tank, and the two are sealed and slidably connected. A screw adjustment assembly is also provided between the two, which can adjust the size of the accommodating space formed between the lower tank and the upper tank. By changing the size of the accommodating space, the small water tank 19 can hold different amounts of fire-fighting water.

[0057] Furthermore, a water outlet pipe 5 is fixedly connected to the bottom of one side wall of the large water tank 3. The water outlet pipe 5 is connected to the outlet end of the high-pressure water pump. The high-pressure water pump is installed inside the large water tank 3. A connecting pipe 30 is fixedly connected to one side wall of the small water tank 19. The connecting pipe 30 is detachably connected to the water outlet pipe 5 through a connecting pipe 6. A first electrically controlled check valve 36 is fixedly embedded inside the connecting pipe 6. A first pressure sensing ring 37 is provided on the side of the first electrically controlled check valve 36 near the connecting pipe 30. A second electrically controlled check valve 39 is fixedly embedded inside the connecting pipe 30. A second pressure sensing ring 38 is fixedly connected to the end of the connecting pipe 30.

[0058] Furthermore, the drive assembly includes a fixed plate 7, which is horizontally arranged and fixedly connected to the support assembly at one end. A support wheel 9 is provided at the bottom of the other end of the fixed plate 7. A strip hole 8 is opened in the middle of the fixed plate 7. A drive unit is fixedly connected to the top of the fixed plate 7, and a small water tank 19 is placed on the top of the drive unit.

[0059] Furthermore, the drive unit includes a first motor 10, which is fixedly connected to one end of the top of the fixed plate 7. The output end of the first motor 10 is coaxially fixedly connected to one end of a horizontally arranged lead screw 11. The other end of the lead screw 11 is rotatably connected to a lead screw seat 12. The lead screw seat 12 is fixedly connected to the other end of the top of the fixed plate 7. A lead screw slider 13 is threadedly connected to the outer wall of the lead screw 11. The lead screw slider 13 is fixedly connected to one side wall of a moving groove 17. The bottom end of the moving groove 17 slides in contact with the top end of the fixed plate 7. A clearance opening 18 is provided on the bottom wall of the moving groove 17. A guide rod slider 16 is fixedly connected to the other opposite side wall of the moving groove 17. A guide rod 14 slides through the guide rod slider 16. The guide rod 14 is parallel to the lead screw 11. One end of the guide rod 14 is fixedly connected to a support assembly. The other end of the guide rod 14 is fixedly connected to the top end of the fixed plate 7 through a guide rod seat 15.

[0060] Furthermore, the inner walls of the moving groove 17 are all designed as smooth transition surfaces.

[0061] Furthermore, the support assembly includes a fixing groove 1, with casters 2 installed at the four corners of the bottom of the fixing groove 1, a large water tank 3 installed at the top of the fixing groove 1, and a water inlet pipe 4 installed on the top wall of the large water tank 3.

[0062] The working process of this invention is as follows:

[0063] First, the large water tank 3 is filled with fire-fighting water. Then, the entire mechanism is moved to the vicinity of the fire location. The first motor 10 and lead screw 11 then drive the small water tank 19 to move closer to the large water tank 3, eventually connecting the two. When connected, pressure is generated on the first pressure sensing ring 37 and the second pressure sensing ring 38. This pressure simultaneously controls the opening of the first electrically controlled check valve 36 and the second electrically controlled check valve 39. The high-pressure water pump in the large water tank 3 pumps fire-fighting water into the outlet pipe 5, which ultimately enters the small water tank 19. After the small water tank 19 is full, the first motor 10 and lead screw 11 drive the small water tank 19 to separate from the large water tank 3. The first pressure sensing ring 37 and the second pressure sensing ring 38 no longer sense pressure and control the closing of the first electrically controlled check valve 36 and the second electrically controlled check valve 39. The clamping assembly is pre-installed at the bottom of the fire-fighting drone. The fire-fighting drone uses the clamping assembly to clamp the small water tank 19 filled with fire-fighting water and then flies to the vicinity of the fire. When the small water tank 19 is clamped during firefighting, the drone drives two locking rods 29 to attach to the two opposite outer walls of the small water tank 19. Then, it continues to descend. During the descent, the inclined surface of the locking rod 29 gradually contacts the locking block. The locking block pushes the locking rod 29 outward until the locking rod 29 is completely lowered below the locking block. At this time, the spring 42 drives the locking rod 29 to reset through the connecting rod 28, so that the horizontal surface of the locking rod 29 is locked at the bottom of the locking block. This completes the clamping of the small water tank 19. When the fire water in the small water tank 19 is used up, the drone transports the small water tank 19 back to the moving trough 17. The arc surface of the inner side wall of the moving trough 17 can ensure that the small water tank 19 is smoothly introduced and placed in the moving trough 17. After the small water tank 19 is placed in the moving trough 17, the adjusting ends of the two adjusting rods 22 at the bottom of the positioning plate 20 extend at the same time, controlling the locking rod 29 to completely disengage from the locking block. Then, the drone rises and leaves the small water tank 19.

[0064] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, 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 invention.

[0065] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. A water supply mechanism for a firefighting drone, characterized in that, include The supporting components are equipped with a large water tank at the top (3); Two drive components are arranged side by side on one side of the support component. The drive components are used to place the small water tank (19) and drive the small water tank (19) to move closer to or away from the large water tank (3). When the small water tank (19) moves closer to the large water tank (3), the two are connected. When the small water tank (19) moves away from the large water tank (3), the two are not connected. The clamping assembly is detachably mounted at the bottom of the fire-fighting drone. The small water tank (19) is detachably mounted at the bottom of the clamping assembly. The clamping assembly is used to clamp the small water tank (19) at the bottom of the fire-fighting drone for fire extinguishing. When the fire-fighting water in the small water tank (19) is used up, the clamping assembly is used to transfer the small water tank (19) to the driving assembly and drive the small water tank (19) to a position close to the large water tank (3) to replenish the fire-fighting water inside the small water tank (19). The clamping assembly includes a positioning plate (20), with hooks (21) at each of the four corners of the positioning plate (20). Two adjusting rods (22) are fixedly connected to the middle of the bottom end of the positioning plate (20). The adjusting ends of the two adjusting rods (22) are far apart from each other. An adjusting plate (23) is fixedly connected to the adjusting end of each adjusting rod (22). Connecting blocks (24) are fixedly connected to both ends of the adjusting plate (23). Two positioning rods (26) are fixedly connected to the bottom end of the positioning plate (20) through several fixing blocks (25). The two positioning rods (26) are symmetrically and parallelly arranged on both sides of the adjusting rods (22). The connecting blocks (24) are slidably sleeved on the positioning rods (26). The bottom ends of the two connecting blocks (24) located on the same adjusting plate (23) are fixedly connected to a clamping part. The small water tank (19) is detachably connected between the two clamping parts. A water outlet pipe (5) is fixedly connected to the bottom of one side wall of the large water tank (3). The water outlet pipe (5) is connected to the outlet end of the high-pressure water pump. The high-pressure water pump is located inside the large water tank (3). A connecting pipe (30) is fixedly connected to one side wall of the small water tank (19). The connecting pipe (30) is detachably connected to the water outlet pipe (5) through a connecting pipe (6). A first electrically controlled one-way valve (36) is fixedly embedded inside the connecting pipe (6). A first pressure sensing ring (37) is provided on the side of the first electrically controlled one-way valve (36) near the connecting pipe (30). A second electrically controlled one-way valve (39) is fixedly embedded inside the connecting pipe (30). A second pressure sensing ring (38) is fixedly connected to the end of the connecting pipe (30). The drive assembly includes a fixed plate (7), which is horizontally arranged and fixedly connected at one end to the support assembly. A support wheel (9) is provided at the bottom of the other end of the fixed plate (7). A strip hole (8) is opened in the middle of the fixed plate (7). A drive unit is fixedly connected to the top of the fixed plate (7). The small water tank (19) is placed on the top of the drive unit.

2. The water supply mechanism for a fire-fighting drone according to claim 1, characterized in that, The clamping part includes a connecting groove (27), the opening of the connecting groove (27) faces downward and the top end is fixedly connected to the bottom end of the connecting block (24). An elastic part is provided inside the connecting groove (27), and the bottom end of the elastic part is fixedly connected to the top end of a vertically arranged connecting rod (28). A snap-fit ​​rod (29) is fixedly connected between the bottom ends of the two connecting rods (28). The snap-fit ​​rod (29) is horizontally arranged, the cross-section of the snap-fit ​​rod (29) is triangular, and the inclined surface of the snap-fit ​​rod (29) faces downward and is close to the small water tank (19).

3. The water supply mechanism for a fire-fighting drone according to claim 2, characterized in that, The elastic part includes a slide rod (41), which is fixedly disposed inside the connecting groove (27). An opening slider (40) is slidably sleeved on the outside of the slide rod (41). The opening slider (40) slides in contact with the inner wall of the connecting groove (27). The opening slider (40) is fixedly connected to the top end of the connecting rod (28). A spring (42) is sleeved on the outside of the slide rod (41). One end of the spring (42) is fixedly connected to the inner wall of the connecting groove (27), and the other end of the spring (42) is fixedly connected to the opening slider (40).

4. The water supply mechanism for a fire-fighting drone according to claim 1, characterized in that, The bottom of the small water tank (19) is connected to one end of a bend (31), and the other end of the bend (31) is fixedly connected to a high-pressure nozzle (32).

5. The water supply mechanism for a fire-fighting drone according to claim 1, characterized in that, The drive unit includes a first motor (10), which is fixedly connected to one end of the top of the fixed plate (7). The output end of the first motor (10) is coaxially fixedly connected to one end of a horizontally arranged lead screw (11). The other end of the lead screw (11) is rotatably connected to a lead screw seat (12), which is fixedly connected to the other end of the top of the fixed plate (7). A lead screw slider (13) is threadedly connected to the outer wall of the lead screw (11), and the lead screw slider (13) is fixedly connected to one side wall of a moving groove (17). The bottom end of the movable groove (17) is in sliding contact with the top end of the fixed plate (7). The bottom wall of the movable groove (17) is provided with a clearance opening (18). A light rod slider (16) is fixedly connected to the other opposite side wall of the movable groove (17). A light rod (14) is slidably passed through the inside of the light rod slider (16). The light rod (14) is parallel to the lead screw (11). One end of the light rod (14) is fixedly connected to the support assembly. The other end of the light rod (14) is fixedly connected to the top end of the fixed plate (7) through the light rod seat (15).

6. The water supply mechanism for a fire-fighting drone according to claim 5, characterized in that, The inner walls of the moving groove (17) are all configured as smooth transition surfaces.

7. The water supply mechanism for a fire-fighting drone according to claim 1, characterized in that, The support assembly includes a fixed groove (1), with casters (2) at the four corners of the bottom of the fixed groove (1), and a large water tank (3) at the top of the fixed groove (1), with a water inlet pipe (4) on the top wall of the large water tank (3).

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