Water supply mechanism of fire-fighting unmanned aerial vehicle

Abstract

The invention 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. The two driving assemblies are arranged on one side of the supporting assembly side by side and used for containing the small water tank and driving the small water tank to be close to or away from the large water tank, and when the small water tank is close to the large water tank, the small water tank and the large water tank are communicated, and when the small water tank is away from the large water tank, the small water tank and the large water tank are not communicated; the clamping assembly is detachably arranged at the bottom end of the fire-fighting unmanned aerial vehicle, the small water tank is detachably arranged at the bottom end of the clamping assembly, the clamping assembly is used for clamping the small water tank at the bottom end of the fire-fighting unmanned aerial vehicle for fire fighting, and after fire fighting water in the small water tank is used up, the clamping assembly is used for transferring the small water tank to the driving assembly; and the small water tank is driven to the position close to the large water tank through the driving assembly to supplement fire-fighting water into the small water tank. The fire extinguishing working efficiency and working capacity of the fire-fighting unmanned aerial vehicle can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicle fire fighting, and in particular relates to a water supply mechanism of a fire fighting unmanned aerial vehicle. Background Art

[0002] In recent years, fire accidents have occurred frequently. Due to inadequate control, manpower is out of reach when a fire occurs, making firefighting difficult. In addition, with the development of modern urban construction industry, the height of high-rise buildings is constantly being refreshed, which also brings a lot of trouble to firefighting and rescue. Especially when dealing with high-rise building fires, flammable and explosive firefighting problems, because firefighters cannot get close to or enter the scene of the disaster, they cannot control the fire danger in time to stop the loss.

[0003] In view of this, firefighting drones are gradually used in firefighting work. In China, many firefighting agencies have successfully used drones to conduct fire scene reconnaissance and monitoring, and throw rescue materials, and the effect is quite obvious. A water-spraying firefighting drone includes a drone body and a water spray head installed on the drone. One end of the water spray head is connected to a water supply pipe, and the water inlet end of the water supply pipe is connected to a water supply device on the ground. In the prior art, a water supply pipeline needs to be connected between the water-spraying firefighting drone and the water supply device, so that the water from the water supply device reaches the water spray head of the firefighting drone through the water supply pipeline to achieve continuous water spraying firefighting operations; in addition, in order to improve the power and continuous working ability of the firefighting drone, it is sometimes necessary to connect electricity from the ground to the firefighting drone, so that a power supply line is also connected between the firefighting drone and the ground. However, since the water supply pipeline and the power supply line themselves have a certain weight, especially when the water supply pipeline is full of water, the weight of the water supply pipeline becomes very heavy. When the firefighting drone lifts the water supply pipeline and the power supply line, a very large lifting force is required to achieve it. As the flight altitude of firefighting drones continues to increase, the weight of water supply pipes and power lines is also getting heavier, which seriously limits the flight altitude of firefighting drones, making it difficult for firefighting drones to carry out medium and high altitude firefighting operations.

[0004] Therefore, it is necessary to design a water supply mechanism for a fire-fighting drone to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a water supply mechanism for a fire-fighting drone to solve the above-mentioned problems and achieve the purpose of improving the fire-fighting efficiency and working ability of the fire-fighting drone.

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

[0007] A support assembly with a large water tank at the top;

[0008] Two driving components are arranged in parallel on one side of the supporting component, the driving components are used to place the small water tank, and the driving components are used to drive the small water tank to approach or move away from the large water tank. When the small water tank approaches the large water tank, the two are connected, and when the small water tank moves away from the large water tank, the two are not connected;

[0009] The clamping assembly is detachably arranged at the bottom of the fire-fighting drone, and the small water tank is detachably arranged at the bottom of the clamping assembly. The clamping assembly is used to clamp the small water tank at the bottom of the fire-fighting drone for fire fighting. When the fire-fighting 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 small water tank is driven to a position close to the large water tank by the driving assembly to replenish the fire-fighting water inside the small water tank.

[0010] A water supply mechanism for a fire-fighting drone based on the present invention, the clamping assembly includes a positioning plate, hooks are respectively arranged at the four corners of the positioning plate, two adjusting rods are fixedly connected to the middle of the bottom end of the positioning plate, the adjusting ends of the two adjusting rods are far away from each other, the adjusting end of each adjusting rod is fixedly connected to the adjusting plate, the two ends of the adjusting plate are respectively fixedly connected to connecting blocks, the bottom end of the positioning plate is fixedly connected to the two positioning rods through a plurality of fixing blocks, the two positioning rods are symmetrically and parallelly arranged on both sides of the adjusting rod, the connecting block is slidably sleeved on the positioning rod, the bottom ends of the two connecting blocks located on the same adjusting plate are commonly fixedly connected to a clamping part, and the small water tank is detachably connected between the two clamping parts.

[0011] A water supply mechanism for a fire-fighting drone based on the present invention, the clamping part includes a connecting groove, the connecting groove opens downward and the top end is fixedly connected to the bottom end of the connecting block, an elastic part is arranged inside the connecting groove, the bottom end of the elastic part is fixedly connected to the top end of a vertically arranged connecting rod, a clamping rod is fixedly connected between the bottom ends of the two connecting rods, the clamping rod is horizontally arranged, the cross-section of the clamping rod is triangular, and the inclined surface of the clamping rod faces downward and is close to the small water tank.

[0012] According to a water supply mechanism of a fire-fighting drone of the present invention, the elastic part includes a sliding rod, the sliding rod is fixedly arranged inside the connecting groove, the sliding sleeve outside the sliding rod is provided with a perforated slider, the perforated slider is in sliding contact with the inner wall of the connecting groove, the perforated slider is fixedly connected to the top of the connecting rod, the sliding rod is sleeved outside the sliding rod with a spring, one end of the spring is fixedly connected to the inner wall of the connecting groove, and the other end of the spring is fixedly connected to the perforated slider.

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

[0014] A water supply mechanism for a fire-fighting drone based on the present invention, a water outlet pipe is fixedly connected to the bottom of one side wall of the large water tank, the water outlet pipe is connected to the water outlet end of a high-pressure water pump, the high-pressure water pump is arranged inside the large water tank, a connecting pipe is fixedly connected to one side wall of the small water tank, the connecting pipe is detachably connected to the water outlet pipe through a connecting pipe, a first electrically-controlled one-way valve is fixedly embedded inside the connecting pipe, a first pressure sensing ring is arranged on one side of the first electrically-controlled one-way valve close to the connecting pipe, a second electrically-controlled one-way valve 1 is fixedly embedded inside the connecting pipe, and a second pressure sensing ring is fixedly connected to the end of the connecting pipe.

[0015] A water supply mechanism for a fire-fighting drone based on the present invention, the driving assembly includes a fixing plate, the fixing plate is horizontally arranged and one end is fixedly connected to the supporting assembly, a supporting wheel is arranged at the bottom of the other end of the fixing plate, a strip hole is opened in the middle of the fixing plate, a driving part is fixedly connected to the top of the fixing plate, and the small water tank is placed on the top of the driving part.

[0016] A water supply mechanism for a fire-fighting drone according to the present invention, the driving part comprises a first motor, the first motor is fixedly connected to one end of the top of the fixed plate, the output end of the first motor is coaxially fixedly connected to one end of a horizontally arranged lead screw, the other end of the lead screw is rotatably connected to a lead screw seat, the lead screw seat is fixedly connected to the other end of the top of the fixed plate, the outer side wall of the lead screw is threadedly connected to a lead screw slider, the lead screw slider is fixedly connected to one side wall of a movable groove, the bottom end of the movable groove is in sliding contact with the top of the fixed plate, the bottom wall of the movable groove is provided with a yielding opening, and the other opposite side wall of the movable groove is fixedly connected to a light rod slider, a light rod is slidably penetrated inside the light rod slider, the light rod and the lead screw are parallel to each other, one end of the light rod is fixedly connected to the supporting assembly, and the other end of the light rod is fixedly connected to the top of the fixed plate through the light rod seat.

[0017] According to the water supply mechanism of the fire-fighting drone of the present invention, the inner side walls of the movable grooves are all configured as smooth transition surfaces.

[0018] According to a water supply mechanism of a fire-fighting drone of the present invention, the support assembly comprises a fixed groove, universal wheels are respectively arranged at the four corners of the bottom end of the fixed groove, the large water tank is arranged at the top of the fixed groove, and a water inlet pipe is arranged 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] The present invention can carry a large water tank through the support component provided. By pre-filling the large water tank with firefighting water and using the support component to transport the large water tank to the vicinity of the fire-fighting location, the fire-fighting drone can be continuously provided with firefighting water. The provided clamping component can mount a small water tank full of firefighting water on the bottom of the fire-fighting drone, and the fire-fighting drone can transport the small water tank to the fire location for spraying water to extinguish the fire. After the fire-fighting water in the small water tank is used up, the fire-fighting drone transfers it to the driving component. The driving component controls the small water tank to be connected to the large water tank, and the small water tank is filled with firefighting water through the large water tank. The fire-fighting drone continues to mount the small water tank for fire-fighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0022] Figure 1 It is an overall schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the clamping assembly of the present invention;

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

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

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

[0027] Among them, 1. fixed groove; 2. universal wheel; 3. large water tank; 4. water inlet pipe; 5. water 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. bare rod; 15. bare rod seat; 16. bare rod slider; 17. moving groove; 18. give way; 19. small water tank; 20. positioning plate; 21. hook; 22. adjustment rod; 23. adjustment Plate; 24, connecting block; 25, fixing block; 26, positioning rod; 27, connecting groove; 28, connecting rod; 29, clamping rod; 30, connecting pipe; 31, elbow; 32, high-pressure nozzle; 33, second motor; 34, driving gear; 35, driven gear; 36, first electric-controlled one-way valve; 37, first pressure sensing ring; 38, second pressure sensing ring; 39, second electric-controlled one-way valve; 40, opening slider; 41, slide rod; 42, spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] As a new industrial technology, drone firefighting has been widely used in various fields. Many firefighting agencies in China have successfully used drones to conduct fire scene reconnaissance and monitoring, and to drop rescue materials, with very obvious results. During the rescue of the Tianjin explosion, various departments also used drones to conduct high-altitude reconnaissance of the accident site, providing some reference for rescue decisions.

[0030] The overall solution of accurate, intuitive and comprehensive fire scene analysis data can provide timely information for on-site rescue. Based on this, there are very few multifunctional firefighting drones, especially those that can still perform tasks near the fire scene. Due to technical, engineering and funding issues, few people dare to touch them. Experts believe that with the popularization of science and technology, drones have gradually entered everyone's field of vision, among which industrial-grade drones have gradually been applied to various fields and played their own role, especially in high-risk fields dominated by firefighting. The use of drones to replace some human actions is self-evident for the firefighting industry. For this reason, we interviewed companies specializing in industrial-grade drones and learned about the importance and application of drones in the field of firefighting. Combined with the actual combat needs of the firefighting force, drones can play many roles in the firefighting force.

[0031] The UAV low-altitude monitoring system has the technical characteristics of rapid mobility, low cost, simple maintenance and operation, and has the ability to quickly patrol and monitor the ground in real time. It is a new type of medium- and low-altitude real-time television imaging and infrared imaging rapid acquisition system. It can detect forest fires in remote areas that cannot be covered by ground patrols at an early stage, and accurately grasp and timely understand various dynamic information at the scene of major forest fires; it can also solve the problems of aircraft patrols being unable to fly at night and being unable to fly due to reduced visibility caused by smoke. As a powerful supplement to existing forestry monitoring methods, it has its unique advantages in resource and environmental monitoring, forest fire monitoring and rescue command in areas that cannot be reached by cars and people. In particular, long-flight and large-load UAVs will surely be widely used in forest fire monitoring, prevention, firefighting, and post-disaster assessment.

[0032] Drones are not just a weapon of war, they are now also used in the civilian sector and can be used to deliver goods. They are also a very popular product among model aircraft enthusiasts. This technology is now 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 can, firstly, ignore the terrain and environment and conduct reconnaissance flexibly and flexibly, especially in some urgent, difficult and dangerous disaster sites where the reconnaissance team cannot conduct reconnaissance, drones can quickly conduct reconnaissance. Second, drone reconnaissance can effectively improve the efficiency of reconnaissance and identify the key factors of disaster accidents at the first time so that commanders can make correct decisions. Third, it can effectively avoid casualties, prevent people from entering toxic, flammable and explosive dangerous environments, and fully and carefully grasp the situation on the scene. Fourth, integrated detection modules are used for detection. For example, combustible gas detectors and toxic gas detectors are integrated to remotely detect the concentration of related gases at flammable and explosive and chemical accident disaster sites, thereby obtaining key information on dangerous areas.

[0034] The role of drones is not limited to disaster investigation. The various disaster accident scenes faced by fire brigades often change rapidly. In the process of handling disaster accidents, the use of drones for real-time monitoring and tracking can provide accurate disaster changes, making it easier for command centers at all levels to grasp the dynamic disaster situation in a timely manner, so as to make quick and accurate countermeasures and minimize losses.

[0035] Using drones to integrate or flexibly carry key equipment can provide assistance for rescue in various situations. First, integrated voice and loudspeaker modules can convey instructions. Using drones to shout or convey instructions in the air can be more effective than shouting or instructions on the ground. It is especially suitable for rescue in high-altitude and high-rise projects. Using drones as carriers can effectively convey key instructions. Second, it opens up rescue paths for rescue. For example, in water and mountain rescue, the use environment and range of existing throwers are very limited, and the accuracy is poor. Using rescue drones to assist in throwing ropes or carry key equipment (such as respirators, rescue ropes, etc.) can create new ways for rescue and open up life-saving channels, and it is accurate and efficient. Third, integrated communication equipment, using drones as communication relays. For example, in environments where there is communication blockage such as earthquakes and mountains, drones are integrated with relay modules to act as temporary relay stations, so that wireless communication links can be established in extreme environments. Fourth, drones are used for emergency mapping. By utilizing the drone’s integrated aerial photography and mapping module, all conditions at the disaster site can be recorded and transmitted to the on-site command center, and emergency mapping of the disaster site’s terrain can be conducted, providing strong support for the implementation of rescue operations.

[0036] Aerial photography can be used to achieve comprehensive and 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, building fire inspections or on-site fire image storage, and the aerial surveillance video can be connected to other security or fire monitoring systems. It supports large-capacity and long-term image storage and retrieval, and supports remote viewing and control of some functions through smart terminals.

[0037] The number of fires and fire rescues increases year by year. The transmission of fire images at traditional disaster sites is easily affected by the external environment. For example, wired image transmission will be affected by the external environment, resulting in inaccurate fire information and affecting fire rescue decisions. Based on this, the use of drones to shoot, communicate, and monitor fire scenes can give full play to the applicability and stability of the equipment itself. Moreover, in the actual application process, the drone system itself has a relatively low application cost, is adaptable to a wide range of regions, and has the characteristics of fast transmission speed. In the actual application process, it can complement the modern image transmission system of the fire brigade. Effective monitoring and control of relevant images and data information at the fire scene can be achieved, so that drones can be applied to fire rescue.

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

[0039] The first 6 minutes after a fire breaks out is the best time to put out a fire, while the golden time is only 30 seconds. Fast response speed is an important capability for firefighters. Drones have the advantages of fast speed, strong flexibility, and easy operation. They can quickly fly to the fire source after a fire breaks out. Drones can also be equipped with high-definition cameras and infrared thermal imaging equipment to monitor the fire scene in real time. They can fly over the fire scene and provide real-time images and videos to help firefighters understand the spread of the fire and the location of the fire source, and guide firefighting operations. In addition, drones can also be equipped with gas sensors to monitor the concentration of harmful gases in the fire, helping firefighters take protective measures in a timely manner.

[0040] In terms of fire scene search, drones can be equipped with high-definition cameras and infrared thermal imaging sensors to quickly scan the fire scene through aerial searches to find trapped people or other potential fire hazards. Drones can hover at low altitudes above the fire scene and find the location of trapped people and the existence of fire hazards through high-definition images and thermal imaging images, providing important information for rescue operations.

[0041] The fire extinguishing devices used by drones in the air include water tanks, foam tanks, dry powder tanks, etc. By controlling the drone, the fire extinguishing devices can be accurately placed on the fire scene to quickly extinguish the fire source. Another advantage of drone aerial firefighting technology is that it can hover at low altitudes above the fire scene and accurately extinguish the fire source, avoiding problems such as accidental injuries and secondary combustion that may exist in traditional firefighting methods.

[0042] Drones can carry life-saving equipment, medical equipment and other supplies and quickly deliver them to where they are needed, providing emergency rescue support. This is especially important for areas that are difficult to reach due to fires, especially when the fire spreads quickly or traffic is blocked.

[0043] In natural disasters or emergencies, communication infrastructure may be damaged or interrupted. Drones can be quickly deployed, equipped with communication equipment, to provide temporary communication support, helping disaster-stricken areas to communicate with the outside world in an emergency and assisting rescue and disaster relief efforts. Drones can be equipped with communication equipment to provide temporary communication support for firefighters. Especially in situations where communication is difficult at the fire scene, drones can serve as communication relay stations to transmit signals over long distances.

[0044] When a fire occurs, roads may be blocked or congested, preventing rescue vehicles from entering the scene smoothly. Drones can monitor the road conditions in real time, including traffic conditions, road blockages, etc., through aerial monitoring. In this way, the command center can dispatch traffic police and rescue vehicles in a timely manner based on the monitoring information of the drone to ensure that the rescue vehicles can quickly reach the fire scene.

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is 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, with a large water tank 3 disposed on the top;

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

[0048] The clamping assembly is detachably arranged at the bottom of the fire-fighting drone, and the small water tank 19 is detachably arranged 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 fighting. When the fire 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 through the driving assembly to replenish the fire water inside the small water tank 19.

[0049] Furthermore, the clamping assembly includes a positioning plate 20, the four corners of the positioning plate 20 are respectively provided with hooks 21, 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 away from each other, and the adjusting end of each adjusting rod 22 is fixedly connected to an adjusting plate 23, and the two ends of the adjusting plate 23 are respectively fixedly connected to connecting blocks 24, and the bottom end of the positioning plate 20 is fixedly connected to two positioning rods 26 through a plurality of fixing blocks 25, the two positioning rods 26 are symmetrically and parallelly arranged on both sides of the adjusting rod 22, and the connecting blocks 24 are slidably sleeved on the positioning rods 26, and the bottom ends of the two connecting blocks 24 located on the same adjusting plate 23 are commonly fixedly connected to a clamping part, and the small water tank 19 is detachably connected between the two clamping parts.

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

[0051] Furthermore, the clamping portion 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 portion is arranged inside the connecting groove 27, the bottom end of the elastic portion is fixedly connected to the top end of a vertically arranged connecting rod 28, a clamping rod 29 is fixedly connected between the bottom ends of the two connecting rods 28, the clamping rod 29 is horizontally arranged, the cross-section of the clamping rod 29 is triangular, and the inclined surface of the clamping 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 arranged inside the connecting groove 27, and a perforated slider 40 is slidingly sleeved on the outer side of the slide rod 41. The perforated slider 40 slides in contact with the inner wall of the connecting groove 27, and the perforated slider 40 is fixedly connected to the top of the connecting rod 28. A spring 42 is sleeved on the outer side of the slide rod 41, and 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 perforated slider 40.

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

[0054] Clamping blocks are fixedly connected to two opposite outer side walls of the small water tank 19 , respectively, and the detachable connection between the small water tank 19 and the clamping rod 29 is achieved through the clamping blocks.

[0055] As an embodiment that can be added to the present invention, one end of the curved pipe 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 driving gear 34 is fixedly connected to the output end of the second motor 33, a driven gear 35 is fixedly connected to the outer side of the curved pipe 31, the driven gear 35 and the driving gear 34 are meshed with each other, the driving gear 34 is driven to rotate by the second motor 33, and then the rotation angle of the curved pipe 31 is adjusted, so that the high-pressure nozzle 32 can adjust the direction of the high-pressure fire water sprayed, thereby increasing the fire extinguishing range.

[0056] As an embodiment that can be added to the present invention, the small water tank 19 is composed of an upper box body and a lower box body. The lower box body is slidably arranged inside the bottom end of the upper box body, and the two are sealed and slidably connected, and a screw adjustment assembly is also arranged between the two. The size of the accommodating space formed between the lower box body and the upper box body can be adjusted by the screw adjustment assembly. By changing the size of the accommodating space, the small water tank 19 can hold different amounts of fire water.

[0057] Furthermore, a water outlet pipe 5 is fixedly connected to the bottom of one side wall of the large water tank 3, and the water outlet pipe 5 is connected to the water outlet end of the high-pressure water pump. The high-pressure water pump is arranged 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 one side of the first electrically-controlled one-way valve 36 close to the connecting pipe 30. A second electrically-controlled one-way valve 39 is fixedly embedded inside the connecting pipe 30, and a second pressure sensing ring 38 is fixedly connected to the end of the connecting pipe 30.

[0058] Furthermore, the driving assembly includes a fixed plate 7, which is horizontally arranged and fixedly connected to the supporting assembly at one end, a supporting wheel 9 is arranged 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 driving part is fixedly connected to the top of the fixed plate 7, and a small water tank 19 is placed on the top of the driving part.

[0059] Furthermore, the driving part includes a first motor 10, which is fixedly connected to one end of the top of the fixed plate 7, and the output end of the first motor 10 is coaxially fixedly connected to one end of a horizontally arranged lead screw 11, and the other end of the lead screw 11 is rotatably connected to a lead screw seat 12, and the lead screw seat 12 is fixedly connected to the other end of the top of the fixed plate 7, and the outer wall of the lead screw 11 is threadedly connected to a lead screw slider 13, and the lead screw slider 13 is fixedly connected to one side wall of a movable groove 17, and the bottom end of the movable groove 17 is in sliding contact with the top of the fixed plate 7, and a yielding opening 18 is opened on the bottom wall of the movable groove 17, and a light rod slider 16 is fixedly connected to the other opposite side wall of the movable groove 17, and a light rod 14 is slidably penetrated inside the light rod slider 16, and the light rod 14 is parallel to the lead screw 11, and one end of the light rod 14 is fixedly connected to the support assembly, and the other end of the light rod 14 is fixedly connected to the top of the fixed plate 7 through the light rod seat 15.

[0060] Furthermore, the inner side walls of the movable grooves 17 are all configured as smooth transition surfaces.

[0061] Furthermore, the supporting assembly includes a fixed groove 1, and universal wheels 2 are respectively arranged at the four corners of the bottom end of the fixed groove 1, a large water tank 3 is arranged at the top of the fixed groove 1, and a water inlet pipe 4 is arranged on the top wall of the large water tank 3.

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

[0063] First, fill the large water tank 3 with fire water, then move the entire mechanism to the vicinity of the fire location, and then drive the small water tank 19 to move towards the large water tank 3 through the first motor 10 and the screw 11, and finally connect the two. When the two are connected, pressure is generated on the first pressure sensing ring 37 and the second pressure sensing ring 38, and the pressure simultaneously controls the first electrically controlled one-way valve 36 and the second electrically controlled one-way valve 39 to open, and the high-pressure water pump in the large water tank 3 pumps the fire water into the outlet pipe 5, and finally enters the small water tank 19. After the fire water in the small water tank 19 is full, the first motor 10 and the screw 11 drive the small water tank 19 to separate from the large water tank 3, and the first pressure sensing ring 37 and the second pressure sensing ring 38 no longer feel pressure and control the first electrically controlled one-way valve 36 and the second electrically controlled one-way valve 39 to close. The clamping assembly has been pre-installed at the bottom of the fire-fighting drone. The fire-fighting drone clamps the small water tank 19 filled with fire water through the clamping assembly, and then flies to the vicinity of the fire. When the fire-fighting water in the small water tank 19 is used up, the drone transports the small water tank 19 back to the movable groove 17. The arc surface of the inner wall of the movable groove 17 can ensure that the small water tank 19 is smoothly introduced and placed in the movable groove 17. After the small water tank 19 is placed in the movable groove 17, the adjusting ends of the two adjusting rods 22 at the bottom of the positioning plate 20 are extended at the same time to control the connecting rod 29 to completely disengage from the blocking block, and then the drone rises and leaves the small water tank 19.

[0064] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope of the present invention.

Claims

1. A water supply mechanism for a fire-fighting drone, characterized in that: include A support assembly, with a large water tank (3) disposed at the top; Two drive assemblies are arranged in parallel on one side of the support assembly, the drive assemblies are used to place a small water tank (19), and the drive assemblies are used to drive the small water tank (19) to approach or move away from the large water tank (3); when the small water tank (19) is close to the large water tank (3), the two are connected, and when the small water tank (19) is away from the large water tank (3), the two are not connected; A clamping assembly is detachably arranged at the bottom of the fire-fighting drone, and the small water tank (19) is detachably arranged 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 firefighting. 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 the small water tank (19) is driven by the driving assembly to a position close to the large water tank (3) to replenish the fire-fighting water inside the small water tank (19).

2. The water supply mechanism of a fire-fighting drone according to claim 1, characterized in that: The clamping assembly comprises a positioning plate (20), the four corners of the positioning plate (20) are respectively provided with hooks (21), the middle part of the bottom end of the positioning plate (20) is fixedly connected with two adjustment rods (22), the adjustment ends of the two adjustment rods (22) are far away from each other, the adjustment end of each adjustment rod (22) is fixedly connected with an adjustment plate (23), the two ends of the adjustment plate (23) are respectively fixedly connected with connecting blocks (24), the bottom end of the positioning plate (20) is fixedly connected with two positioning rods (26) through a plurality of fixing blocks (25), the two positioning rods (26) are symmetrically and parallelly arranged on both sides of the adjusting rod (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 commonly fixedly connected with a clamping part, and the small water tank (19) is detachably connected between the two clamping parts.

3. The water supply mechanism of a fire-fighting drone according to claim 2, characterized in that: The clamping portion comprises a connecting groove (27), the connecting groove (27) opens downward and the top end is fixedly connected to the bottom end of the connecting block (24), an elastic portion is arranged inside the connecting groove (27), the bottom end of the elastic portion is fixedly connected to the top end of a vertically arranged connecting rod (28), a clamping rod (29) is fixedly connected between the bottom ends of the two connecting rods (28), the clamping rod (29) is arranged horizontally, the cross section of the clamping rod (29) is triangular, and the inclined surface of the clamping rod (29) faces downward and is close to the small water tank (19).

4. The water supply mechanism of a fire-fighting drone according to claim 3, characterized in that: The elastic part comprises a slide rod (41), the slide rod (41) is fixedly arranged inside the connecting groove (27), a perforated slider (40) is slidingly sleeved on the outer side of the slide rod (41), the perforated slider (40) is in sliding contact with the inner side wall of the connecting groove (27), the perforated slider (40) is fixedly connected to the top end of the connecting rod (28), a spring (42) is sleeved on the outer side of the slide rod (41), one end of the spring (42) is fixedly connected to the inner side wall of the connecting groove (27), and the other end of the spring (42) is fixedly connected to the perforated slider (40).

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

6. The water supply mechanism of a fire-fighting drone according to claim 1, characterized in that: A water outlet pipe (5) is fixedly connected to the bottom of one side wall of the large water tank (3), and the water outlet pipe (5) is connected to the water outlet end of a high-pressure water pump. The high-pressure water pump is arranged inside the large water tank (3). A connecting pipe (30) is fixedly connected to one side wall of the small water tank (19), and 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), and a first pressure sensing ring (37) is arranged on a side of the first electrically controlled one-way valve (36) close to the connecting pipe (30). A second electrically controlled one-way valve (39) 1 is fixedly embedded inside the connecting pipe (30), and a second pressure sensing ring (38) is fixedly connected to the end of the connecting pipe (30).

7. The water supply mechanism of a fire-fighting drone according to claim 1, characterized in that: The driving assembly comprises a fixing plate (7), the fixing plate (7) being arranged horizontally and having one end fixedly connected to the supporting assembly, a supporting wheel (9) being arranged at the bottom of the other end of the fixing plate (7), a strip hole (8) being opened in the middle of the fixing plate (7), a driving part being fixedly connected to the top of the fixing plate (7), and the small water tank (19) being placed at the top of the driving part.

8. The water supply mechanism of a fire-fighting drone according to claim 7, characterized in that: The driving unit comprises a first motor (10), the first motor (10) is fixedly connected to one end of the top of the fixing 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 fixing plate (7), the outer wall of the lead screw (11) is threadedly connected to a lead screw slider (13), and the lead screw slider (13) is fixedly connected to a side wall of a movable groove (17), The bottom end of the movable groove (17) is in sliding contact with the top end of the fixed plate (7); a clearance opening (18) is provided on the bottom wall of the movable groove (17); 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 penetrated inside the light rod slider (16); the light rod (14) and the lead screw (11) are parallel to each other; one end of the light rod (14) is fixedly connected to the support assembly; and the other end of the light rod (14) is fixedly connected to the top end of the fixed plate (7) through a light rod seat (15).

9. The water supply mechanism of a fire-fighting drone according to claim 8, characterized in that: The inner side walls of the movable grooves (17) are all configured as smooth transition surfaces.

10. The water supply mechanism of a fire-fighting drone according to claim 1, characterized in that: The support assembly comprises a fixed groove (1), and universal wheels (2) are respectively arranged at the four corners of the bottom end of the fixed groove (1); the large water tank (3) is arranged at the top end of the fixed groove (1), and a water inlet pipe (4) is arranged on the top wall of the large water tank (3).

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