High-rise building fire extinguishing device based on unmanned aerial vehicle

Abstract

The invention discloses a high-rise building fire extinguishing device based on an unmanned aerial vehicle, and particularly relates to the technical field of fire fighting, the device comprises an unmanned aerial vehicle body, a recovery mechanism is mounted in the middle of the bottom of the unmanned aerial vehicle body, a rope is wound in the recovery mechanism, and a spherical self-walking fire extinguishing mechanism is hung at the bottom end of the rope; the rope can lower the spherical self-walking fire extinguishing mechanism; clamping supporting legs are slidably connected to the periphery of the bottom of the unmanned aerial vehicle body, the inner sides of the clamping supporting legs can make contact with the spherical self-walking fire extinguishing mechanism and clamp the spherical self-walking fire extinguishing mechanism, and the bottom ends of the clamping supporting legs can be placed on the ground. The spherical self-walking fire extinguishing mechanism is provided with a water inlet hole and a water outlet hole, and water is stored in the spherical self-walking fire extinguishing mechanism. High-altitude precise delivery of the spherical self-walking fire extinguishing mechanism is achieved through the unmanned aerial vehicle, the spherical structure has the self-walking capacity and can enter a complex space for fire extinguishing, the water spraying system can form a protective water film, the fire extinguishing efficiency and safety are improved, and the spherical self-walking fire extinguishing mechanism is suitable for high-rise building fire extinguishing.

Description

TECHNICAL FIELD

[0001] The application relates to the fire fighting technical field, in particular to a high-rise building fire extinguishing device based on an unmanned aerial vehicle. BACKGROUND

[0002] High-rise building fire fighting has been a worldwide problem. The traditional fire ladder is limited in height, and the high-altitude fire truck has a limited operation range, so it is difficult to effectively deal with high-rise building fires. With the development of unmanned aerial vehicle technology, a scheme of using an unmanned aerial vehicle to carry fire extinguishing agent for high-altitude fire extinguishing has appeared.

[0003] In the prior art, the unmanned aerial vehicle fire extinguishing device mostly adopts the mode of directly suspending a fire extinguishing bottle or connecting a fire hose. The direct suspension type has a limited amount of fire extinguishing agent and insufficient extinguishing effect. The mode of connecting a fire hose is limited by the length and weight of the fire hose, and the unmanned aerial vehicle has a large load and poor operation flexibility. The Chinese patent document with the publication number CN111422352B proposes an unmanned aerial vehicle fire extinguishing device, but it can only be used for one-time delivery and has limited positioning accuracy. The Chinese patent document with the publication number CN216061738U discloses a high-altitude fire extinguishing device with a straight-flow water gun, but the water hose cannot be moved after being fixed, which makes it difficult to deal with changes in the fire site.

[0004] At present, there is a lack of unmanned aerial vehicle fire extinguishing devices that can perform high-altitude delivery, autonomous movement, continuous water supply and repeated use. In particular, in complex building structures, existing devices cannot enter indoor or narrow spaces to carry out fire extinguishing operations.

[0005] Therefore, the application provides a high-rise building fire extinguishing device based on an unmanned aerial vehicle to solve the above problems. SUMMARY

[0006] The application aims to provide a high-rise building fire extinguishing device based on an unmanned aerial vehicle to solve the problems raised in the background.

[0007] To achieve the above-mentioned purpose, the application provides the following technical scheme: a high-rise building fire extinguishing device based on an unmanned aerial vehicle, comprising an unmanned aerial vehicle body, a recovery mechanism is installed in the middle of the bottom of the unmanned aerial vehicle body, a rope is wound in the recovery mechanism, and a spherical self-propelled fire extinguishing mechanism is hung at the bottom end of the rope; the rope can lower the spherical self-propelled fire extinguishing mechanism;

[0008] A clamping leg is slidably connected to the outer periphery of the bottom of the unmanned aerial vehicle body, the inner side of the clamping leg can contact and clamp the spherical self-propelled fire extinguishing mechanism, and the bottom end of the clamping leg can be placed above the ground;

[0009] The spherical self-propelled fire extinguishing mechanism has a water inlet hole and a water outlet hole, and stores water therein.

[0010] Preferably, the spherical self-walking fire extinguishing mechanism comprises a main frame, spherical half shells, an outer diffusion disc, and a ring buckle;

[0011] The spherical half shells are rotatably connected to the two sides of the main frame and form a sphere with the main frame, and the outer part of the spherical half shells contacts the ground first than the main frame;

[0012] Through holes are provided in the upper circumferential array of the main frame to connect the spherical half shells on both sides of the main frame;

[0013] The water inlet hole and the water outlet hole are provided on the outer side wall of the main frame and are connected to the through hole;

[0014] One of the water outlet holes on the top of the main frame is provided with a stand, and the top end of the stand is provided with a concave outer diffusion disc for diffusing water to the outside of the spherical half shells;

[0015] The top middle of the outer diffusion disc is provided with a ring buckle, and the bottom end of the rope is buckled on the ring buckle.

[0016] Preferably, a through groove is provided in the lower part of the main frame, and a balance block is installed on the inner top of the through groove to automatically right the spherical self-walking fire extinguishing mechanism;

[0017] A motor one is installed in the middle of the two sides of the main frame, and a linkage shaft is installed on the output shaft of the motor one, and the end of the linkage shaft is cross-inserted into the center of the inner side of the spherical half shell;

[0018] A protective shell covering the motor one and the through groove is installed on the two sides of the main frame, and a water storage cavity is formed between the protective shell, the inner side of the spherical half shell, and the through groove.

[0019] Preferably, a water pump is installed in the through groove, the water outlet of the water pump is connected to the water outlet hole, and the water inlet of the water pump is connected to the water storage cavity;

[0020] A valve plug is slidably connected in the water outlet hole, and a bevel is provided on the side of the valve plug close to the end of the water pump, and the bevel can contact the inner wall of the water outlet hole to close the water outlet hole;

[0021] A spring is installed on the side of the valve plug away from the water pump, and a cross is installed on the end of the spring, and the cross is installed on the inner wall of the water outlet hole.

[0022] Preferably, a transmission ring frame is installed on the surface of the spherical half shell in contact with the side wall of the main frame through bolts, a mounting ring plate is installed on the side wall of the main frame through bolts, the inner side of the mounting ring plate is in surface contact with the transmission ring frame to lock the position of the transmission ring frame;

[0023] The transmission ring frame is rotatably connected with the main frame and the mounting ring plate.

[0024] Preferably, the recovery mechanism comprises a winding bin, a second motor, and a winding shaft.

[0025] The winding shaft is rotatably connected to the inside of the winding bin, the top end of the rope is installed on the winding shaft, and the rope is wound on the winding shaft.

[0026] The second motor is installed at the end of the winding bin, and the output shaft of the second motor is connected to the end of the winding shaft.

[0027] Preferably, a winding notch is formed in the middle of the bottom of the winding bin, and the bottom end of the rope is connected to the ring buckle through the winding notch.

[0028] Preferably, a linear sliding groove corresponding to the clamping leg is formed on the outer periphery of the bottom of the unmanned aerial vehicle body, the top end of the clamping leg is slidably connected in the linear sliding groove, and the clamping leg can move to the center of the unmanned aerial vehicle body along the linear sliding groove.

[0029] The inside of the unmanned aerial vehicle body is provided with a pneumatic driving mechanism for driving the clamping leg to move.

[0030] Preferably, the pneumatic driving mechanism comprises a pneumatic bin, an extension column, a connecting column, and a linkage frame.

[0031] The pneumatic bin is installed on the unmanned aerial vehicle body, the connecting column is installed at the top end of the clamping leg and is slidably connected in the linear sliding groove, the extension column is slidably connected to the pneumatic bin, and the extension column is installed at the top end of the connecting column.

[0032] The end of the extension column extending into the pneumatic bin is installed with the linkage frame.

[0033] The unmanned aerial vehicle body is provided with an air pump, and the air pump is in communication with the pneumatic bin.

[0034] Preferably, connecting pipes are installed at both ends of the pneumatic bin, and the connecting pipes are used to communicate between the pneumatic bins.

[0035] Compared with the prior art, the present application has the following advantages:

[0036] 1. The high-rise building fire extinguishing device based on the unmanned aerial vehicle realizes the high-precision delivery of the spherical self-walking fire extinguishing mechanism through the unmanned aerial vehicle and the rope winding and unwinding, breaks through the height limit of the traditional fire extinguishing equipment, can quickly reach the fire area of the super high-rise building, and can enter the indoor narrow space for fire extinguishing through the automatic walking of the spherical self-walking fire extinguishing mechanism, and can realize the recovery of the spherical self-walking fire extinguishing mechanism through the rope.

[0037] 2. The unmanned aerial vehicle-based high-rise building fire extinguishing device can form a circumferential water curtain on the top to protect itself and perform directional injection through multiple water outlets, thereby achieving the dual functions of fire extinguishing and self-protection.

[0038] 3. The unmanned aerial vehicle-based high-rise building fire extinguishing device can quickly fix and release the spherical self-walking fire extinguishing mechanism through the cooperation of the clamping leg and the pneumatic driving mechanism, and the pneumatic system is fast in response and compact in structure, which is suitable for the weight limit requirements of the unmanned aerial vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] Figure 1 is a structural schematic diagram of the present application;

[0041] Figure 2 is a structural schematic diagram of the present application in cross section;

[0042] Figure 3 is a structural schematic diagram of the present application in which the clamping driving mechanism is connected;

[0043] Figure 4 is a structural schematic diagram of the present application in which the clamping driving mechanism is connected to the clamping leg;

[0044] Figure 5 is a structural schematic diagram of the present application in which the clamping driving mechanism is connected to the clamping leg;

[0045] Figure 6 is a structural schematic diagram of the present application in which the clamping driving mechanism is connected to the clamping leg;

[0046] Figure 7 is a structural schematic diagram of the present application in which the clamping driving mechanism is connected to the clamping leg;

[0047] Figure 8 is a structural schematic diagram of the present application in which the clamping driving mechanism is connected to the clamping leg;

[0048] Figure 9 is a structural schematic diagram of the present application in which Figure 4 is a structural schematic diagram of the present application in which

[0049] Figure 10 is a structural schematic diagram of the present application in which Figure 8 is a structural schematic diagram of the present application in which

[0050] In the figure: 1, unmanned aerial vehicle body; 101, linear sliding groove;

[0051] 2. Clamp the outriggers;

[0052] 3. Spherical self-propelled fire extinguishing mechanism; 31. Main frame; 311. Cross; 312. Spring; 313. Valve plug; 314. Transmission ring frame; 315. Water pump; 316. Mounting ring plate; 32. Spherical half-shell; 33. Outer diffuser plate; 34. Ring buckle; 35. Protective outer shell; 36. Motor 1; 37. Linkage shaft; 38. Balance block; 39. Through groove;

[0053] 4. Recycling mechanism; 41. Rewinding bin; 411. Rewinding slot; 42. Motor II; 43. Rewinding shaft; 44. Rope;

[0054] 5. Pneumatic drive mechanism; 51. Pneumatic chamber; 52. Telescopic column; 53. Connecting column; 54. Linkage frame; 55. Connecting pipe. Detailed Implementation

[0055] 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.

[0056] Example: Figures 1-10 As shown, the present invention provides a high-rise building fire extinguishing device based on drones, including a drone body 1, a recovery mechanism 4 installed in the middle of the bottom of the drone body 1, a rope 44 wound inside the recovery mechanism 4, a spherical self-propelled fire extinguishing mechanism 3 suspended at the bottom end of the rope 44, and the spherical self-propelled fire extinguishing mechanism 3 can be lowered down from the rope 44.

[0057] The outer periphery of the bottom of the drone body 1 is slidably connected with a clamping leg 2. The inner side of the clamping leg 2 can contact and clamp the spherical self-propelled fire extinguishing mechanism 3. The bottom end of the clamping leg 2 can be placed on the ground.

[0058] The spherical self-propelled fire extinguishing mechanism 3 has a water inlet and a water outlet, and stores water inside.

[0059] It should be noted that in the embodiment, the unmanned aerial vehicle body 1 of the application is used as the core bearing platform of the whole device, the recovery mechanism 4 is used for hanging and lowering the spherical self-walking fire extinguishing mechanism 3, the clamping supporting leg 2 is slidingly connected at the bottom of the unmanned aerial vehicle body 1, so as to clamp or release the spherical self-walking fire extinguishing mechanism 3, and the clamping supporting leg 2 can be in contact with the ground before the spherical self-walking fire extinguishing mechanism 3 in the process of lowering, so that the stable take-off and landing of the unmanned aerial vehicle body 1 is realized, and the spherical self-walking fire extinguishing mechanism 3 can be clamped or released by the spherical self-walking fire extinguishing mechanism 3, so that the functions of spraying water for fire extinguishing in the air and moving for fire extinguishing at the fire source are realized, the dual fire extinguishing operation functions of "air-ground" are realized, the spherical structure design can effectively protect the mechanism, and the situation that the spherical self-walking fire extinguishing mechanism 3 is stuck in the chaotic environment in the fire can be effectively avoided;

[0060] The spherical self-walking fire extinguishing mechanism 3 is carried by the unmanned aerial vehicle body 1, can be quickly lifted to any high fire floor, and is not limited by the height of a ladder; the recovery mechanism 4 realizes accurate winding and unwinding of the rope 44, cooperates with the stable clamping of the clamping supporting leg 2, ensures that the spherical self-walking fire extinguishing mechanism 3 accurately arrives at the fire starting point when being put, can be recovered to the unmanned aerial vehicle body 1 after fire extinguishing is completed, realizes secondary water supply reuse, and avoids resource waste; compared with a traditional disposable putting device, the use cost is reduced by more than 60%, the recovery process does not need manual intervention, and the operation safety is improved;

[0061] The inner side of the clamping supporting leg 2 is provided with an antiskid pad layer, which can be in close contact with the outer surface of the spherical fire extinguishing mechanism 3;

[0062] The high-precision putting and recovery in the air are realized, and the height limitation of traditional rescue is broken through.

[0063] As shown in Figures 1-10 Fig. 2, another embodiment of the application is based on the previous embodiment, the spherical self-walking fire extinguishing mechanism 3 comprises a main frame 31, spherical half shells 32, an outer diffusion disc 33 and a ring buckle 34;

[0064] The spherical half shells 32 are rotationally connected at the two sides of the main frame 31 and form a sphere with the main frame 31, and the outer part of the spherical half shells 32 is in contact with the ground before the main frame 31;

[0065] Through holes are arranged in the upper circumferential array of the main frame 31, and are used for connecting the spherical half shells 32 at the two sides of the main frame 31;

[0066] The water inlet hole and the water outlet hole are arranged on the outer side wall of the main frame 31 and are connected with the through holes 39;

[0067] A stand is mounted on the outer periphery of one of the water outlet holes at the top of the main frame 31, and an inner concave outer diffusion disc 33 is mounted at the top end of the stand, which is used for diffusing water to the outer side of the spherical half shells 32.

[0068] A ring 34 is installed at the top center of the outer diffuser 33, and the bottom end of the rope 44 is fastened to the ring 34.

[0069] It should be noted that in this embodiment, the main frame 31 is a central frame structure with an internal water storage chamber. Spherical structures are formed on both sides by spherical semi-shells 32. The outer surface of the spherical semi-shells 32 is preferably made of high-temperature resistant rubber material to improve ground adaptability and cushioning performance. The spherical semi-shells 32 are rotatable, allowing the spherical self-propelled fire extinguishing mechanism 3 to move independently on the ground or in narrow spaces, easily overcoming obstacles. The outer diffuser 33 is installed on the outer periphery of the water outlet at the top of the main frame 31 via a column. It has a concave dish-shaped structure and is used to diffuse water flow to form a protective water film. The outer diffuser 33 is installed on the outer periphery of the water outlet at the top of the main frame 31 to diffuse the sprayed water to the outside of the spherical semi-shells 32, forming a protective water film that effectively isolates high temperatures and protects internal components from burning. Simultaneously, multiple sets of water outlets can spray water in different directions, achieving multi-dimensional fire extinguishing through a combination of point and surface methods. This allows for precise extinguishing of the fire at the ignition point while also suppressing the spread of fire in the surrounding area.

[0070] It achieves multi-dimensional fire extinguishing and high-temperature protection, ensuring continuous combat capability.

[0071] like Figures 1-10 As shown, another embodiment of the present invention is based on the previous embodiment. The lower part of the main frame 31 is provided with a through groove, and a balance block 38 is installed on the inner top of the through groove for automatically straightening the spherical self-propelled fire extinguishing mechanism 3.

[0072] Motor 36 is installed in the middle of both sides of the main frame 31. The output shaft of motor 36 is equipped with linkage shaft 37. The end of linkage shaft 37 is cross-shaped and inserted into the center of the inner side of spherical half shell 32.

[0073] The main frame 31 is equipped with protective housings 35 on both sides, which cover the motor 36 and the through slot. The protective housings 35, the inner side of the spherical half shell 32, and the through slot 39 form a water storage cavity.

[0074] It should be noted that in this embodiment, driven by the output shaft of motor 36, the linkage shaft 37 can rotate, causing the spherical half-shell 32 to rotate. This allows it to move flexibly in narrow spaces inside buildings, such as corridors and rooms, and easily overcome obstacles. The balancing block 38 ensures that the spherical self-propelled fire extinguishing mechanism 3 automatically straightens on inclined or bumpy surfaces, preventing it from tipping over. The protective shell 35 separates the internal components of the spherical self-propelled fire extinguishing mechanism 3 from the water storage chamber, thereby forming a protective "water layer" again, effectively preventing the problem of excessively high temperatures of the internal components of the spherical self-propelled fire extinguishing mechanism 3.

[0075] like Figures 1-10As shown, another embodiment of the present invention is based on the previous embodiment. A water pump 315 is installed inside the through groove 39. The outlet of the water pump 315 is connected to the water outlet hole, and the inlet of the water pump 315 is connected to the water storage chamber.

[0076] A valve plug 313 is slidably connected inside the water outlet. The valve plug 313 has a bevel on its side near the end of the water pump 315, and the bevel can contact the inner wall of the water outlet to seal the water outlet.

[0077] A spring 312 is installed on the side of the valve plug 313 away from the water pump 315. A cross 311 is installed on the end of the spring 312. The cross 311 is installed on the inner wall of the water outlet.

[0078] It should be noted that in this embodiment, the valve plug 313 is slidably connected inside the water outlet and has a bevel design for closing or opening the water outlet; the spring 312 and the cross 311 work together to realize the reset function of the valve plug 313, and the water pump 315 enables the smooth water delivery of the water outlet;

[0079] The design of this bevel allows for control of the water flow rate by adjusting the opening size of the valve plug 313, and also seals the water outlet when not in use to prevent external dust from entering.

[0080] like Figures 1-10 As shown, another embodiment of the present invention is based on the previous embodiment. A transmission ring frame 314 is bolted to the surface of the spherical hemisphere 32 that contacts the side wall of the main frame 31. An mounting ring plate 316 is bolted to the side wall of the main frame 31. The inner side of the mounting ring plate 316 is in surface contact with the transmission ring frame 314 to lock the position of the transmission ring frame 314.

[0081] The transmission ring frame 314 is rotatably connected to the main frame 31 and the mounting ring plate 316.

[0082] It should be noted that, in this embodiment, the assembly of the main frame 31 and the spherical half-shell 32 is as follows: the main frame 31 is taken, and the transmission ring frame 314 is rotatably connected to both sides of the main frame 31 via bearings. The mounting ring plate 316 is installed on the side wall of the main frame 31 via bolts, ensuring that the inner side of the mounting ring plate 316 is in surface contact with the transmission ring frame 314, limiting the axial displacement of the transmission ring frame 314 but not affecting its rotation; the spherical half-shell 32 is fixed to the outer side of the transmission ring frame 314 with bolts.

[0083] The assembly of the main frame 31 and the spherical half-shell 32 is completed, which improves the convenience of maintenance.

[0084] like Figures 1-10 As shown, this is another embodiment of the present invention, which is based on the previous embodiment. The recycling mechanism 4 includes a winding bin 41, a second motor 42, and a winding shaft 43.

[0085] The take-up shaft 43 is rotatably connected to the inside of the take-up chamber 41, and the top end of the rope 44 is mounted on the take-up shaft 43, and the rope 44 is wound up on the take-up shaft 43;

[0086] Motor 2 42 is installed at the end of take-up chamber 41, and the output shaft of motor 2 42 is connected to the end of take-up shaft 43.

[0087] It should be noted that, in this embodiment, under the drive of the output shaft of motor 42, the winding shaft 43 can rotate, thereby enabling the rope 44 to be wound and unwound smoothly, completing the lifting, retrieval and lowering process of the spherical self-propelled fire extinguishing mechanism 3.

[0088] It can adjust the height of the spherical self-propelled fire extinguishing mechanism 3 according to the specific fire situation, so that the spherical self-propelled fire extinguishing mechanism 3 can carry out fire extinguishing operations at the corresponding height, and ensure that the drone body 1 is at a height relative to the fire, so as to avoid the drone body 1 being affected by the fire and restricting the fire extinguishing operation of the spherical self-propelled fire extinguishing mechanism 3.

[0089] like Figures 1-10 As shown, another embodiment of the present invention is based on the previous embodiment. A winding slot 411 is provided through the middle of the bottom of the winding chamber 41, and the bottom end of the rope 44 passes through the winding slot 411 and is connected to the ring buckle 34.

[0090] It should be noted that in this embodiment, the rope 44 can be unwound and wound through the winding slot 411, thus ensuring the smooth unwinding and winding of the rope 44 in a single line and preventing the rope 44 from being scattered.

[0091] like Figures 1-10 As shown, another embodiment of the present invention is based on the previous embodiment. A linear groove 101 corresponding to the clamping leg 2 is provided on the outer periphery of the bottom of the drone body 1. The top end of the clamping leg 2 is slidably connected in the linear groove 101, and the clamping leg 2 can move along the linear groove 101 toward the center of the drone body 1.

[0092] The drone body 1 is equipped with a pneumatic drive mechanism 5, which is used to drive the clamping legs 2 to move.

[0093] It should be noted that, in this embodiment, the pneumatic drive mechanism 5 drives the clamping leg 2 to move along the linear slide 101 towards or in the opposite direction to the center of the UAV body 1. This enables the clamping leg 2 to clamp the spherical self-propelled fire extinguishing mechanism 3, ensuring its smooth high-altitude transport. The reverse movement releases the clamping constraint on the spherical self-propelled fire extinguishing mechanism 3, allowing it to be lowered. Furthermore, the clamping leg 2 ensures the stable take-off and landing of the UAV body 1, preventing the spherical self-propelled fire extinguishing mechanism 3 from directly contacting the ground and causing damage.

[0094] like Figures 1-10 As shown, this is another embodiment of the present invention, which is based on the previous embodiment. The pneumatic drive mechanism 5 includes a pneumatic chamber 51, a telescopic column 52, a connecting column 53, and a linkage frame 54.

[0095] The air chamber 51 is installed on the UAV body 1, the connecting column 53 is installed on the top of the clamping leg 2, the connecting column 53 is slidably connected in the linear slide groove 101, and the telescopic column 52 is slidably connected to the air chamber 51, the telescopic column 52 is installed on the top of the connecting column 53.

[0096] The end of the telescopic column 52 that extends into the air chamber 51 is installed with the linkage frame 54;

[0097] An air pump is installed on the drone body 1, and the air pump is connected to the air pressure chamber 51.

[0098] It should be noted that in this embodiment, the air pressure inside the air chamber 51 is changed by filling and releasing air into the air chamber 51 with an air pump, which drives the linkage frame 54, telescopic column 52 and connecting column 53 inside the air chamber 51 to move synchronously, so as to achieve precise sliding of the clamping leg 2. The clamping and releasing response time is less than 2 seconds, and no manual operation is required.

[0099] like Figures 1-10 As shown, another embodiment of the present invention is based on the previous embodiment. Connecting pipes 55 are installed at both ends of the air pressure chamber 51, and the connecting pipes 55 are used to connect the air pressure chambers 51.

[0100] It should be noted that in this embodiment, the multiple air pressure chambers 51 are connected by a connecting pipe 55 to achieve synchronous operation, ensuring that the multiple sets of clamping legs 2 operate synchronously, and avoiding the tilting or falling off of the spherical self-propelled fire extinguishing mechanism 3 due to uneven clamping force.

[0101] In summary, when this drone-based high-rise building fire extinguishing device is in use, the drone body 1 takes off and a negative pressure is formed in the air chamber 51 by the air pump, which allows the linkage frame 54, telescopic column 52, and connecting column 53 to move inward synchronously, allowing the clamping legs 2 to move inward. Through the clamping of the clamping legs 2, the spherical self-propelled fire extinguishing mechanism 3 can be clamped and carried into the air.

[0102] By carrying the drone body 1 into the air, the spherical self-propelled fire extinguishing mechanism 3 can carry out water spraying fire extinguishing operations in the air.

[0103] Pressurizing the air chamber 51 with an air pump allows the linkage frame 54, telescopic column 52, and connecting column 53 to move outward synchronously, thereby allowing the clamping leg 2 to move outward. The outward movement of the clamping leg 2 allows the spherical self-propelled fire extinguishing mechanism 3 to be lowered, and with the unwinding of the reel 43, the spherical self-propelled fire extinguishing mechanism 3 can be lowered to the location where fire extinguishing operations are needed.

[0104] Then, the drone body 1 observes the fire extinguishing situation, and then controls motor 36 and controls linkage shaft 37 to rotate accordingly through the output shaft of motor 36, so that spherical half shell 32 rotates accordingly, and spherical self-propelled fire extinguishing mechanism 3 can move accordingly.

[0105] The water pump 315 can discharge the water in the water storage chamber from the water outlet to carry out fire extinguishing operations. The sprayed water is diffused by the outer diffuser 33, which can form a circumferentially diffused water layer on the top of the spherical self-propelled fire extinguishing mechanism 3 and form a water film on the outside of the spherical self-propelled fire extinguishing mechanism 3 to protect the spherical self-propelled fire extinguishing mechanism 3.

[0106] After the water in the spherical self-propelled fire extinguishing mechanism 3 is exhausted, the spherical self-propelled fire extinguishing mechanism 3 can be recovered by moving the spherical self-propelled fire extinguishing mechanism 3 and retracting the recovery mechanism 4, so as to carry out the water replenishment work again.

[0107] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-rise building fire extinguishing device based on unmanned aerial vehicles (UAVs), characterized in that: Includes a drone body (1), a recovery mechanism (4) is installed in the middle of the bottom of the drone body (1), a rope (44) is wound inside the recovery mechanism (4), a spherical self-propelled fire extinguishing mechanism (3) is suspended at the bottom end of the rope (44), and the spherical self-propelled fire extinguishing mechanism (3) can be lowered by the rope (44). The outer periphery of the bottom of the drone body (1) is slidably connected to a clamping leg (2). The inner side of the clamping leg (2) can contact and clamp the spherical self-propelled fire extinguishing mechanism (3). The bottom end of the clamping leg (2) can be placed on the ground. The spherical self-propelled fire extinguishing mechanism (3) has a water inlet and a water outlet, and stores water inside.

2. The high-rise building fire extinguishing device based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that: The spherical self-propelled fire extinguishing mechanism (3) includes a main frame (31), a spherical half shell (32), an outer diffuser (33), and a ring (34); The spherical half-shell (32) is rotatably connected to both sides of the main frame (31) and forms a sphere with the main frame (31), and the outside of the spherical half-shell (32) contacts the ground before the main frame (31); The upper circumferential array of the main frame (31) has through slots (39) for connecting the spherical half shells (32) on both sides of the main frame (31). Both the water inlet and the water outlet are located on the outer side wall of the main frame (31) and are connected to the through groove (39); A column is installed around one of the water outlet holes at the top of the main frame (31), and a concave outer diffuser plate (33) is installed at the top of the column to diffuse water to the outside of the spherical half-shell (32). A ring (34) is installed at the top center of the outer diffuser (33), and the bottom end of the rope (44) is fastened to the ring (34).

3. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 2, characterized in that: The lower part of the main frame (31) is provided with a through groove, and a balance block (38) is installed on the top of the through groove for automatically straightening the spherical self-propelled fire extinguishing mechanism (3). Motor 1 (36) is installed in the middle of both sides of the main frame (31). The output shaft of the motor 1 (36) is equipped with a linkage shaft (37). The end of the linkage shaft (37) is inserted into the center of the inner side of the spherical half shell (32) in a cross shape. The main frame (31) is equipped with protective shells (35) on both sides, which cover the motor (36) and the through groove. The protective shell (35) forms a water storage cavity between the inner side of the spherical half shell (32) and the through groove (39).

4. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 3, characterized in that: A water pump (315) is installed inside the through groove (39). The outlet of the water pump (315) is connected to the outlet hole, and the inlet of the water pump (315) is connected to the water storage chamber. A valve plug (313) is slidably connected inside the water outlet hole. The valve plug (313) has a bevel on the side near the end of the water pump (315), and the bevel can contact the inner wall of the water outlet hole to seal the water outlet hole. A spring (312) is installed on the side of the valve plug (313) away from the water pump (315), and a cross (311) is installed at the end of the spring (312), which is installed on the inner wall of the water outlet.

5. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 4, characterized in that: The spherical hemisphere (32) is bolted to the side wall of the main frame (31) with a transmission ring frame (314) attached thereto. The side wall of the main frame (31) is bolted to a mounting ring plate (316). The inner side of the mounting ring plate (316) is in surface contact with the transmission ring frame (314) to lock the position of the transmission ring frame (314). The transmission ring frame (314) is rotatably connected to the main frame (31) and the mounting ring plate (316).

6. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 5, characterized in that: The recycling mechanism (4) includes a winding bin (41), a second motor (42), and a winding shaft (43). The take-up shaft (43) is rotatably connected to the inside of the take-up chamber (41), the top end of the rope (44) is mounted on the take-up shaft (43), and the rope (44) is wound on the take-up shaft (43); The second motor (42) is installed at the end of the take-up bin (41), and the output shaft of the second motor (42) is connected to the end of the take-up shaft (43).

7. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 6, characterized in that: The bottom of the winding chamber (41) has a winding slot (411) through the middle, and the bottom end of the rope (44) passes through the winding slot (411) and is connected to the ring (34).

8. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 7, characterized in that: The outer periphery of the bottom of the UAV body (1) is provided with a linear groove (101) corresponding to the clamping leg (2). The top end of the clamping leg (2) is slidably connected in the linear groove (101). The clamping leg (2) can move along the linear groove (101) toward the center of the UAV body (1). The UAV body (1) is equipped with a pneumatic drive mechanism (5), which is used to drive the clamping legs (2) to move.

9. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 8, characterized in that: The pneumatic drive mechanism (5) includes a pneumatic chamber (51), a telescopic column (52), a connecting column (53), and a linkage frame (54). The air chamber (51) is installed on the UAV body (1), the connecting column (53) is installed on the top of the clamping leg (2), the connecting column (53) is slidably connected in the linear slide groove (101), the telescopic column (52) is slidably connected on the air chamber (51), and the telescopic column (52) is installed on the top of the connecting column (53). The end of the telescopic column (52) that extends into the air pressure chamber (51) is installed with the linkage frame (54); An air pump is installed on the main body (1) of the drone, and the air pump is connected to the air pressure chamber (51).

10. The high-rise building fire extinguishing device based on unmanned aerial vehicles according to claim 9, characterized in that: The two ends of the pressure chamber (51) are respectively equipped with connecting pipes (55), which are used to connect the pressure chambers (51) to each other.

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