Ducted unmanned aerial vehicle for fire fighting and fire fighting truck

Abstract

The invention provides a ducted unmanned aerial vehicle for fire fighting and a fire fighting truck. The ducted unmanned aerial vehicle for fire fighting comprises a first supporting beam extending in the longitudinal direction, and at least three ducted propelling systems are arranged on each of the two sides in the width direction perpendicular to the length direction of the first supporting beam; a fire water monitor is arranged on the first supporting beam and can spray a fire extinguishing agent. According to the technical scheme, the unmanned aerial vehicle can pass through a narrow area under the condition that the dynamic load is met, so that the adaptability of the ducted unmanned aerial vehicle for fire fighting is improved.

Description

Technical Field

[0001] The present application relates to the technical field of ducted UAVs, and more specifically, to a ducted UAV and a fire truck for firefighting. Background Art

[0002] There are some multi-rotor fire-fighting drones on the market, but their load capacity is small and they can only carry a few fire-fighting bombs. They have a certain ability to extinguish fires in the early stages of buildings, but for fires in super-high-rise buildings, it is difficult for fire trucks / fire-fighting drones to arrive at the initial stage of the fire to carry out fire-fighting work. When the fire is large, their actual fire-fighting significance is not great.

[0003] Therefore, the use of ducted drones can improve the load capacity and achieve the purpose of high-altitude firefighting. However, as the load capacity of the ducted drone is improved, its volume will also increase accordingly, which will cause the ducted drone to be unable to pass through some narrow spaces. Therefore, it is urgent to design a ducted drone that can meet the power load and can also pass through narrow areas, so as to improve the adaptability of the ducted drone. Summary of the invention

[0004] The present application provides a ducted UAV and a fire truck for firefighting, which can pass through narrow areas while meeting the power load, thereby improving the adaptability of the ducted UAV for firefighting.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a ducted UAV for firefighting, comprising: a first longitudinally extending support beam, with at least three ducted propulsion systems arranged on both sides of a width direction perpendicular to the length direction of the first support beam; a firefighting water cannon is arranged on the first support beam, and the firefighting water cannon can spray fire extinguishing agent.

[0007] In the process of implementing the above scheme, the ducted UAV includes a first support beam extending longitudinally, and at least three ducted propulsion systems are arranged on both sides of the width direction perpendicular to the length direction of the first support beam. The ducted propulsion systems are arranged on the first support beam so that the ducted UAV as a whole extends along the length direction and has a longitudinal structure, so that the ducted UAV can pass through narrow areas; at least three ducted propulsion systems are arranged in the width direction of the first support beam to meet the power load, and a fire water cannon is provided on the first support beam. The fire water cannon can be connected to a water hose and can spray fire extinguishing agent, so that the ducted UAV can perform high-altitude fire fighting.

[0008] As an embodiment, the ducted UAV also includes a second support beam, which is vertically connected to the first support beam, and at least two ducted propulsion systems are fixedly connected to one side of the first support beam, and at least two ducted propulsion systems are fixedly connected to one side of the second support beam; the multiple ducted propulsion systems are all arranged to be tilted upward.

[0009] In the process of implementing the above scheme, the ducted UAV also includes a second support beam, which is vertically connected to the first support beam, and at least two ducted propulsion systems are fixedly connected to one side of the first support beam, which is equivalent to at least four ducted propulsion systems can be fixed on the first support beam, and at least two ducted propulsion systems are fixedly connected to one side of the second support beam, which is equivalent to at least four ducted propulsion systems can be fixed on the second support beam, so that the ducted UAV is at least an eight-ducted UAV, which increases the power load, and the multiple ducted propulsion systems are evenly arranged, which is easier to control and has a larger power reserve. When a single motor fails, the impact on the entire machine is smaller; multiple ducted propulsion systems are all arranged to tilt upward, which can effectively increase the controllability of the ducted UAV, facilitate operation, and improve efficiency, thereby gaining effective time for fire fighting.

[0010] As an embodiment, at least one foldable ducted propulsion system is provided on the first support beam.

[0011] In the process of implementing the above solution, at least one foldable ducted propulsion system is provided on the first support beam, which can reduce the size of the ducted UAV, facilitate transportation and placement, and improve space utilization.

[0012] As an embodiment, at least four ducted propulsion systems are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam, and the two ducted propulsion systems located at both ends of the same side of the first support beam are configured as a first ducted propulsion system and a second ducted propulsion system. The first ducted propulsion system and the second ducted propulsion system can be folded along the length direction of the first support beam respectively toward the ducted propulsion system connected thereto.

[0013] In the process of implementing the above scheme, at least four ducted propulsion systems are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam, and the two ducted propulsion systems located at the two ends of the same side of the first support beam are configured as the first ducted propulsion system and the second ducted propulsion system. The first ducted propulsion system and the second ducted propulsion system can be folded along the length direction of the first support beam toward the ducted propulsion system connected thereto, thereby reducing the space occupied in the width direction of the ducted UAV and improving space utilization; at the same time, the first ducted propulsion system and the second ducted propulsion system are folded along the length direction of the first support beam, so that the first ducted propulsion system and the second ducted propulsion system do not interfere with each other during the folding process, and there is folding space around the ducted propulsion systems respectively connected to the first ducted propulsion system and the second ducted propulsion system, and the first ducted propulsion system and the second ducted propulsion system are folded toward the ducted propulsion system connected thereto, respectively, which can increase the folding angle of the first ducted propulsion system and the second ducted propulsion system and further increase space utilization.

[0014] As an embodiment, four ducted propulsion systems are provided on one side of the first support beam, three of which are connected to the first support beam, and the three ducted propulsion systems are configured as a first ducted propulsion system, a second ducted propulsion system and a third ducted propulsion system, and the second ducted propulsion system is located between the first ducted propulsion system and the third ducted propulsion system; another ducted propulsion system is connected to the second ducted propulsion system and can be folded toward the second ducted propulsion system along a length direction perpendicular to the first support beam.

[0015] In the process of implementing the above scheme, four ducted propulsion systems are provided on one side of the first support beam, that is, the ducted UAV of the present application is an eight-ducted UAV, of which three ducted propulsion systems are connected to the first support beam, and the three ducted propulsion systems are configured as the first ducted propulsion system, the second ducted propulsion system and the third ducted propulsion system, which is equivalent to that three ducted propulsion systems can be provided on one side of the first support beam, thereby reducing the length of the ducted UAV and improving the space utilization rate; the second ducted propulsion system is located between the first ducted propulsion system and the third ducted propulsion system; another ducted propulsion system is connected to the second ducted propulsion system, and can be folded toward the second ducted propulsion system along the length direction perpendicular to the first support beam, thereby further reducing the width of the ducted UAV and facilitating transportation, especially when the ducted UAV is placed on a fire truck, it is conducive to the placement of other components on the fire truck, so that the fire truck can be made smaller in width and length, which is convenient for the fire truck to pass through a narrow area. The ducted UAV of the present application reduces the length dimension while meeting the power load, and is convenient for transportation and placement.

[0016] As an embodiment, three ducted propulsion systems are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam, and one ducted propulsion system is also provided at each end of the first support beam. The two ducted propulsion systems located at the two ends of the first support beam can be folded toward the first support beam along the length direction of the first support beam.

[0017] In the process of implementing the above scheme, three ducted propulsion systems are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam, and a ducted propulsion system is also provided at each end of the first support beam. The two ducted propulsion systems located at both ends of the first support beam can be folded toward the first support beam along the length direction of the first support beam, so that the ducted UAV of the present application is an eight-ducted UAV. Three ducted propulsion systems are arranged on each side of the first support beam. Compared with four ducted propulsion systems are arranged on one side of the first support beam, the length of the first support beam can be reduced, and the space for the ducted UAV in length can be further reduced. The two ducted propulsion systems at both ends of the first support beam can be folded toward the first support beam along the length direction of the first support beam, further reducing the space for the ducted UAV in length, which is convenient for transportation. In particular, when the ducted UAV is placed on a fire truck, it is beneficial to the placement of other components on the fire truck, so that the fire truck can be made smaller in length, which is convenient for the fire truck to pass through narrow areas.

[0018] As an embodiment, the ducted UAV is also provided with a folding mechanism, and the ducted propulsion system is folded by the folding mechanism; the folding mechanism includes a first connecting member and a second connecting member that are rotatably connected, and the first connecting member and the second connecting member are respectively connected to the two ducted propulsion systems, and the folding mechanism also includes a driving component, and the driving component is connected to the first connecting member and the second connecting member, and the driving component can drive the second connecting member to flip relative to the first connecting member.

[0019] In the process of implementing the above scheme, the ducted UAV is also provided with a folding mechanism. By setting the folding mechanism, the ducted propulsion system can be folded conveniently, so that the ducted propulsion system can be folded along the length or width direction, thereby reducing the space of the ducted UAV and facilitating transportation and placement; the folding mechanism includes a first connecting member and a second connecting member that are rotatably connected, and the first connecting member and the second connecting member are respectively connected to the two ducted propulsion systems, so that the ducted propulsion system can be rotated for easy folding; the folding mechanism also includes a driving component, the driving component is connected to the first connecting member and the second connecting member, and at the same time, the driving component can drive the second connecting member to flip relative to the first connecting member, thereby driving the ducted propulsion system connected to the second connecting member to flip, thereby realizing the folding of the ducted propulsion system.

[0020] As an embodiment, the first connecting member is provided with a first through hole, and the driving assembly includes a driving member, which is arranged at the position of the first through hole and is rotatably connected to the first connecting member; the second connecting member is provided with a second through hole, and the driving assembly also includes a rotating member, which is arranged at the position of the second through hole and is rotatably connected to the second connecting member; the driving assembly also includes a connecting rod, one end of the connecting rod is threadedly connected to the rotating member, and the other end is connected to the driving member, and the driving member is used to drive the connecting rod to rotate.

[0021] In the process of implementing the above scheme, the first connecting member is provided with a first through hole, and the driving assembly includes a driving member, which is arranged at the position of the first through hole and is rotatably connected to the first connecting member, so that the driving member can rotate relative to the first connecting member; the second connecting member is provided with a second through hole, and the driving assembly also includes a rotating member, which is arranged at the position of the second through hole and is rotatably connected to the second connecting member, so that the rotating member can rotate relative to the second connecting member; the driving assembly also includes a connecting rod, one end of the connecting rod is threadedly connected to the rotating member, and the other end is connected to the driving member. When the driving member drives the connecting rod to rotate, the connecting rod is threadedly connected to the rotating member, and the rotating member can rotate relative to the second connecting member. So that the rotating member moves toward or away from the driving member. While driving the rotating member to move, the rotating member is rotationally connected to the second connecting member, which also drives the second connecting member to flip relative to the first connecting member, thereby realizing the folding function of the ducted propulsion system. During the flipping of the second connecting member, the driving and rotating members need to adjust the angles in real time. Therefore, the driving member and the rotating member are rotationally connected to the first connecting member and the second connecting member respectively, so that the driving member can adjust the angles of the driving member and the rotating member in real time while driving the rotating member to rotate. This allows the driving member to better drive the rotating member to move on the connecting rod, facilitate the control of the folding mechanism, and avoid jamming.

[0022] As an embodiment, the driving member is provided with a first connecting hole, and the driving member is rotatably connected to the first connecting member through the first connecting hole, and the second connecting member can be flipped through the connection position of the first connecting member and the second connecting member as an axis, the axis for flipping the second connecting member is parallel to the axis of the first connecting hole, and the axis of the connecting rod is perpendicular to the first connecting hole; the rotating member is provided with a second connecting hole, and the rotating member is rotatably connected to the second connecting member through the second connecting hole, and the second connecting member can be flipped through the connection position of the first connecting member and the second connecting member as an axis, the axis for flipping the second connecting member is parallel to the axis of the second connecting hole, and the axis of the connecting rod is perpendicular to the second connecting hole.

[0023] In the implementation process of the above scheme, the driving member is provided with a first connecting hole, and the driving member is rotatably connected to the first connecting member through the first connecting hole. In this way, the driving member can rotate around the first connecting member with the first connecting hole as an axis. At the same time, the second connecting member can be flipped over by the connection position between the first connecting member and the second connecting member as an axis. The axis of the flipping position can be configured as the first axis. The axis of the first connecting hole is parallel to the first axis, and the axis of the connecting rod is perpendicular to the first connecting hole. In this way, when the driving member drives the connecting rod to rotate, the second connecting member flips over, and the driving member also rotates relative to the first connecting member in real time through the first connecting hole, so that the driving member maintains an angle corresponding to the rotating member in real time, so as to better drive the rotating member; the rotating member is provided with a second connecting hole, and the rotating member is rotatably connected to the second connecting member through the second connecting hole. In this way, the rotating member can rotate around the second connecting member with the second connecting hole as the axis. At the same time, the second connecting member can be flipped through the connection position between the first connecting member and the second connecting member as the axis. The axis of the flipping position can be configured as the first axis. The axis of the second connecting hole is parallel to the first axis, and the axis of the connecting rod is perpendicular to the second connecting hole. In this way, when the driving member drives the connecting rod to rotate, the second connecting member flips, the connecting rod is threadedly connected to the rotating member, the driving angle of the driving member changes, and the angle of the rotating member is correspondingly changed. The rotating member also adjusts the rotation angle in real time through the second connecting hole to keep consistent with the driving member, so that the driving member maintains the corresponding angle with the rotating member in real time, so as to facilitate the driving member to better drive the rotating member, and further facilitate the realization of the folding function of the ducted propulsion system to avoid jamming.

[0024] As an embodiment, the fire water monitor includes a water hose connector, which is fixed on the first support beam. The fire water monitor also includes a main water pipe and a diversion joint, which is connected to the water hose connector. One of the diversion joints is connected to the main water pipe, and the other extends in other directions.

[0025] In the process of implementing the above scheme, the fire water cannon includes a water hose connector, which is fixed on the first support beam and is convenient for connection with the water hose, so that the fire extinguishing agent in the liquid tank can enter the fire water cannon through the water hose and be sprayed through the fire water cannon to achieve the purpose of fire extinguishing; the fire water cannon also includes a main water pipe, which is used to guide the fire extinguishing agent, and also includes a diverter joint, which is connected to the water hose connector, the main water pipe is connected to the diverter joint, and the other joint of the diverter joint extends in other directions. By setting the diverter joint, the fire extinguishing agent can be diverted, so that the ducted drone can be installed with more main water pipes for fire extinguishing, thereby improving the fire extinguishing effect.

[0026] As an embodiment, the first support beam includes a plurality of carbon fiber plates, and the plurality of carbon fiber plates are spliced ​​into a frame structure; the first support beam also includes a plurality of support members, and the support members are connected to two adjacent carbon fiber plates, and the support members protrude from both sides of the frame structure and are used to connect to the ducted propulsion system.

[0027] In the process of implementing the above scheme, the first support beam includes a plurality of carbon fiber plates, and the plurality of carbon fiber plates are spliced ​​into a frame structure. By splicing the carbon fiber plates into a frame structure, the overall weight of the ducted UAV can be reduced, and the strength can also be improved to meet the strength and rigidity requirements of the ducted UAV; the first support beam also includes a plurality of support members, and the support members are connected to two adjacent carbon fiber plates. The support members protrude from both sides of the frame structure and are used to connect to the ducted propulsion system, so that the support members can be connected to both the two carbon fiber plates and the two ducted propulsion systems, thereby reducing the number of parts of the ducted UAV, reducing the weight of the ducted UAV, and facilitating control.

[0028] In a second aspect, the present application provides a fire truck, which is equipped with the ducted drone for firefighting described in the first aspect.

[0029] In the process of implementing the above scheme, a ducted drone is installed on the fire truck, which can be connected to the water hose to realize fire-fighting operations. At the same time, due to the small size of the ducted drone, the space utilization rate of the fire truck can be improved, so that the fire truck can pass through some narrow areas and improve adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a ducted UAV provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of the structure of a ducted UAV from different perspectives provided in an embodiment of the present application;

[0033] Figure 3 A schematic diagram of a partial explosion structure of a ducted UAV provided in an embodiment of the present application;

[0034] Figure 4 A schematic diagram of a ducted UAV irrigation structure provided by another embodiment of the present application;

[0035] Figure 5A schematic diagram of the structure of a ducted UAV provided in yet another embodiment of the present application;

[0036] Figure 6 A schematic diagram of the structure of a ducted UAV provided for different embodiments of the present application;

[0037] Figure 7 A schematic diagram of the structure of a ducted UAV provided in another embodiment of the present application;

[0038] Figure 8 A schematic diagram of the structure of a ducted UAV provided in yet another embodiment of the present application;

[0039] Fig. 9 A schematic diagram of the structure of a fire truck provided in an embodiment of the present application;

[0040] Fig.10 A schematic diagram of the partial structure of a ducted UAV provided in an embodiment of the present application;

[0041] Fig.11 Schematic diagram of the structure of the ducted UAV from different perspectives provided in the embodiment of the present application.

[0042] Icons: 1-first support beam; 11-carbon fiber plate; 12-support member; 121-support plate; 122-support seat; 13-aluminum bracket; 2-second support beam; 3-ducted propulsion system; 4-first connecting member; 5-second connecting member; 6-driving assembly; 61-driving member; 611-first connecting hole; 62-connecting rod; 63-rotating member; 7-fire monitor; 71-hose connector; 72-main water pipe; 73-diverter joint; 74-fuselage-mounted water pipe; 75-water pipe mounting member; 8-power generation module; 9-liquid tank; 10-tethered cable reel; 14-water pump system; 16-flight control system; 17-high-voltage power distribution system; 18-limiting member. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0044] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] like Figure 1 , 4As shown in Figures 8 to 8, in the first aspect, an embodiment of the present application provides a ducted UAV for firefighting, the ducted UAV includes a first support beam 1 extending in the longitudinal direction, and at least three ducted propulsion systems 3 are arranged on both sides of the width direction perpendicular to the length direction of the first support beam 1, so that the ducted propulsion system 3 is arranged on the first support beam 1, so that the ducted UAV as a whole extends along the length direction, and has a longitudinal structure, so that the ducted UAV can pass through a narrow area; at least three ducted propulsion systems 3 are arranged in the width direction of the first support beam 1 to meet the power load, and a fire water cannon 7 is provided on the first support beam 1, and the fire water cannon 7 can be connected to a water hose to spray a fire extinguishing agent, so that the ducted UAV can perform high-altitude firefighting.

[0046] Optionally, the first support beam 1 extending in the longitudinal direction means that the first support beam 1 is in a long strip shape.

[0047] like Figure 1 As shown, optionally, the ducted UAV further includes a flight control system 16 fixed on the first support beam 1 , and the flight control system 16 is fixed on the first support beam 1 via a shock absorbing device, thereby improving the stability of the flight control system 16 .

[0048] Optionally, the shock absorbing device may include a shock absorbing bracket and a shock absorber.

[0049] like Figure 1 As shown, optionally, a high-voltage power distribution system 17 and a battery box (not shown in the figure) are also provided in the first support beam 1, and cables are connected to the high-voltage power distribution system 17, and the battery box is connected to the high-voltage power distribution system 17. The high-voltage power distribution system 17 includes relays and fuses, etc., and can be communicated with the flight control system 16 to realize power distribution according to the instructions of the flight control system 16.

[0050] Optionally, the battery box can maintain the voltage stability of the DC power; at the same time, it can provide instantaneous power supplement and absorb the power generated by the generator when it slows down; in addition, the battery box can also ensure that the ducted drone can land smoothly after the power cable is disconnected.

[0051] like Figure 2 As shown, optionally, at least two ducted propulsion systems 3 are arranged at an angle, thereby increasing the controllability of the ducted UAV.

[0052] Optionally, in the embodiment of the present application, three ducted propulsion systems 3 may be arranged on both sides of the width direction perpendicular to the length direction of the first support beam 1, so that the ducted UAV has six ducted UAVs. Four ducted UAVs may be arranged to have eight ducted UAVs, or five ducted UAVs may be arranged to have ten ducted UAVs.

[0053] like Figure 4As shown, as an implementation mode, the ducted UAV also includes a second support beam 2, the second support beam 2 is vertically connected to the first support beam 1, and at least two ducted propulsion systems 3 are fixedly connected to one side of the first support beam 1, which is equivalent to that at least four ducted propulsion systems 3 can be fixed on the first support beam 1, and at least two ducted propulsion systems 3 are fixedly connected to one side of the second support beam 2, which is equivalent to that at least four ducted propulsion systems 3 can be fixed on the second support beam 2, so that the ducted UAV is at least an eight-ducted UAV, which increases the power load, and the multiple ducted propulsion systems 3 are evenly arranged, which is easier to control and has a larger power reserve, and the impact on the entire machine when a single motor fails is smaller; the multiple ducted propulsion systems 3 are all arranged to tilt upward, which can effectively increase the controllability of the ducted UAV, facilitate operation, and improve efficiency, thereby gaining effective time for fire fighting.

[0054] Optionally, the first support beam 1 and the second support beam 2 have the same length, and four ducted propulsion systems 3 can be fixed on the first support beam 1, and one can be fixed on both sides of one end; four ducted propulsion systems 3 can be fixed on the second support beam 2, and one can be fixed on both sides of one end, so that the ducted UAV of the embodiment of the present application is an eight-ducted UAV, and the eight ducted propulsion systems 3 are arranged circumferentially as a whole, which is convenient for control, so that the entire device has a larger power reserve, and when a single ducted propulsion system 3 fails, the impact on the entire ducted UAV is smaller.

[0055] Optionally, the first support beam 1 and the second support beam 2 have the same structure.

[0056] Optionally, in an embodiment of the present application, each ducted propulsion system 3 is arranged at an angle, thereby increasing the controllability of the ducted UAV.

[0057] like Figures 5 to 8 As shown, as an embodiment, at least one foldable ducted propulsion system 3 is provided on the first support beam 1, which can reduce the size of the ducted UAV, facilitate transportation and placement, and improve space utilization.

[0058] like Figure 6 and 8As shown, as an embodiment, at least four ducted propulsion systems 3 are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam 1, and the two ducted propulsion systems 3 located at the two ends of the same side of the first support beam 1 are configured as a first ducted propulsion system and a second ducted propulsion system. The first ducted propulsion system and the second ducted propulsion system can be folded along the length direction of the first support beam 1 toward the ducted propulsion system 3 connected thereto, thereby reducing the space occupied in the width direction of the ducted UAV and improving space utilization; at the same time, the first ducted propulsion system and the second ducted propulsion system are folded along the length direction of the first support beam 1, so that the first ducted propulsion system and the second ducted propulsion system do not interfere with each other during the folding process, and there is folding space around the ducted propulsion systems 3 respectively connected to the first ducted propulsion system and the second ducted propulsion system, and the first ducted propulsion system and the second ducted propulsion system are folded toward the ducted propulsion system 3 connected thereto, respectively, which can increase the folding angle of the first ducted propulsion system and the second ducted propulsion system and further increase space utilization.

[0059] like Figure 6 As shown, optionally, four ducted propulsion systems 3 can be provided on one side of the first support beam 1, that is, an eight-ducted UAV can be provided, such as Figure 8 As shown, five ducted propulsion systems 3 may also be provided on one side of the first support beam 1, that is, it may be a ten-ducted UAV.

[0060] like Figure 5 As shown, as an embodiment, one side of the first support beam 1 is provided with four ducted propulsion systems 3, that is, the ducted UAV of the present application is an eight-ducted UAV, of which three ducted propulsion systems 3 are connected to the first support beam 1, and the three ducted propulsion systems 3 are configured as the first ducted propulsion system, the second ducted propulsion system and the third ducted propulsion system, which is equivalent to that three ducted propulsion systems 3 can be set on one side of the first support beam 1, thereby reducing the length of the ducted UAV and improving the space utilization rate; the second ducted propulsion system is located between the first ducted propulsion system and the third ducted propulsion system; another ducted propulsion system is connected to the second ducted propulsion system, and can be folded toward the second ducted propulsion system along the length direction perpendicular to the first support beam 1, thereby further reducing the width of the ducted UAV space, facilitating transportation, especially when the ducted UAV is placed on a fire truck, it is conducive to the placement of other components on the fire truck, so that the fire truck can be made smaller in width and length, which is convenient for the fire truck to pass through a narrow area. The ducted UAV of the present application reduces the length dimension while meeting the power load, and is convenient for transportation and placement.

[0061] like Figure 5As shown, optionally, in an embodiment of the present application, another ducted propulsion system 3 is connected to the second ducted propulsion system so that the thrust generated by the ducted UAV is centered around the center of the ducted UAV, making it easier to control.

[0062] like Figure 7 As shown, as an embodiment, three ducted propulsion systems 3 are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam 1, and a ducted propulsion system 3 is also arranged at each end of the first support beam 1. The two ducted propulsion systems 3 located at the two ends of the first support beam 1 can be folded toward the first support beam 1 along the length direction of the first support beam 1, so that the ducted UAV of the present application is an eight-ducted UAV. Three ducted propulsion systems 3 are arranged on each side of the first support beam 1. Compared with four ducted propulsion systems 3 are arranged on one side of the first support beam 1, the length of the first support beam 1 can be reduced, and the length space of the ducted UAV can be further reduced. The two ducted propulsion systems 3 at the two ends of the first support beam 1 can be folded toward the first support beam 1 along the length direction of the first support beam 1, further reducing the length space of the ducted UAV, which is convenient for transportation. In particular, when the ducted UAV is placed on a fire truck, it is beneficial to the placement of other components on the fire truck, so that the fire truck can be made smaller in length, which is convenient for the fire truck to pass through a narrow area.

[0063] like Figure 6 As shown, as an embodiment, the ducted UAV is also provided with a folding mechanism, by which the folding mechanism is provided to facilitate the folding of the ducted propulsion system 3, so that the ducted propulsion system 3 can be folded along the length or width direction, thereby reducing the space of the ducted UAV for easy transportation and placement; the folding mechanism includes a first connecting member 4 and a second connecting member 5 that are rotatably connected, and the first connecting member 4 and the second connecting member 5 are respectively connected to the two ducted propulsion systems 3, so that the ducted propulsion system 3 can be rotated for easy folding; the folding mechanism also includes a driving component 6, and the driving component 6 is connected to the first connecting member 4 and the second connecting member 5. At the same time, the driving component 6 can drive the second connecting member 5 to flip relative to the first connecting member 4, thereby driving the ducted propulsion system 3 connected to the second connecting member 5 to flip, thereby realizing the folding of the ducted propulsion system 3.

[0064] Optionally, the first connecting member 4 and the second connecting member 5 are plate-like structures, which can increase the connection area with the ducted propulsion system 3, thereby improving the structural stability. The first connecting member 4 and the second connecting member 5 can be connected by a hinge or a connecting shaft, so as to achieve a rotational connection between the first connecting member 4 and the second connecting member 5.

[0065] Optionally, a limit member 18 is further provided between the first connecting member 4 and the second connecting member 5, which can enable a certain gap to be separated between the first connecting member 4 and the second connecting member 5 during normal operation of the ducted UAV, thereby preventing the first connecting member 4 and the second connecting member 5 from being attached together, causing resonance between the two ducted propulsion systems 3 connected to the first connecting member 4 and the second connecting member 5, thereby affecting the flight of the ducted UAV.

[0066] Optionally, the limiting member 18 may be disposed on the first connecting member 4 or on the second connecting member 5 .

[0067] Optionally, the first connecting member 4 and the second connecting member 5 may be provided with hanging ears to be connected to the duct body of the ducted propulsion system 3 .

[0068] like Figure 6 As shown, as an embodiment, the first connecting member 4 is provided with a first through hole, and the driving assembly 6 includes a driving member 61, which is arranged at the position of the first through hole and is rotatably connected to the first connecting member 4, so that the driving member 61 can rotate relative to the first connecting member 4; the second connecting member 5 is provided with a second through hole, and the driving assembly 6 also includes a rotating member 63, which is arranged at the position of the second through hole and is rotatably connected to the second connecting member 5, so that the rotating member 63 can rotate relative to the second connecting member 5; the driving assembly 6 also includes a connecting rod 62, one end of the connecting rod 62 is threadedly connected to the rotating member 63, and the other end is connected to the driving member 61. When the driving member 61 drives the connecting rod 62 to rotate, the connecting rod 62 is threadedly connected to the rotating member 63. The rotating member 63 can be moved toward or away from the driving member 61. While driving the rotating member 63 to move, the rotating member 63 is rotationally connected to the second connecting member 5, which also drives the second connecting member 5 to flip relative to the first connecting member 4, thereby realizing the folding function of the ducted propulsion system 3. During the flipping of the second connecting member 5, the driving and rotating member 63 need to adjust the angle in real time. Therefore, the driving member 61 and the rotating member 63 are rotationally connected to the first connecting member 4 and the second connecting member 5 respectively, so that the driving member 61 can drive the rotating member 63 to rotate while adjusting the angle of the driving member 61 and the rotating member 63 in real time, so that the driving member 61 can better drive the rotating member 63 to move on the connecting rod 62, thereby facilitating the control of the folding mechanism and avoiding jamming.

[0069] Optionally, the positions where the first through hole and the second through hole are opened should be as far away as possible from the position where the first connecting member 4 and the second connecting member 5 are rotatably connected, so that it is convenient for the driving member 61 to drive the second connecting member 5 to flip.

[0070] Optionally, the driving member 61 and the rotating member 63 may be rotatably connected to the first connecting member 4 and the second connecting member 5 respectively via connecting shafts.

[0071] Optionally, when the rotating member 63 is connected to the second connecting member 5, the connecting shaft cannot penetrate, that is, holes can be opened at both ends of the rotating member 63, and the rotating member 5 is rotatably connected to the second connecting member 5 through the connecting shaft. If the connecting shaft penetrates, the threaded connection between the connecting rod 62 and the rotating member 63 is affected, and the folding function of the ducted propulsion system 3 is further affected.

[0072] Optionally, the driving member 61 may be a lead screw motor, the connecting rod 62 may be an electric lead screw, and the lead screw motor is connected to the electric lead screw to drive the electric lead screw to rotate. The first connecting hole 611 may be provided on the lead screw motor housing, or the driving member 61 may further include a housing connected to the lead screw motor, so as to avoid the first connecting hole 611 affecting the normal operation of the lead screw motor.

[0073] Optionally, the rotating member 63 may be a cylindrical circular nut, a second connecting hole may be opened along the radial direction, and the hole wall is a threaded section, and the electric lead screw may also be provided with threads.

[0074] like Figure 6 As shown, as an embodiment, the driving member 61 is provided with a first connecting hole 611, and the driving member 61 is rotatably connected to the first connecting member 4 through the first connecting hole 611. In this way, the driving member 61 can rotate around the first connecting member 4 with the first connecting hole 611 as the axis. At the same time, the second connecting member 5 can be flipped around the axis through the connection position between the first connecting member 4 and the second connecting member 5. The axis of the flipping position can be configured as the first axis. The axis of the first connecting hole 611 is parallel to the first axis, and the axis of the connecting rod 62 is perpendicular to the first connecting hole 611. In this way, when the driving member 61 drives the connecting rod 62 to rotate, the second connecting member 5 flips, and the driving member 61 also rotates relative to the first connecting member 4 in real time through the first connecting hole 611, so that the driving member 61 maintains an angle corresponding to the rotating member 63 in real time, so as to better drive the rotating member 63; the rotating member 63 is provided with a second connecting hole, and the rotating member 63 is connected to the second connecting member 4 through the second connecting hole The connecting member 5 is rotatably connected, so that the rotating member 63 can rotate around the second connecting member 5 with the second connecting hole as the axis. At the same time, the second connecting member 5 can be flipped through the connection position between the first connecting member 4 and the second connecting member 5 as the axis, and the axis of the flipping position can be configured as the first axis. The axis of the second connecting hole is parallel to the first axis, and the axis of the connecting rod 62 is perpendicular to the second connecting hole. In this way, when the driving member 61 drives the connecting rod 62 to rotate, the second connecting member 5 flips, and the connecting rod 62 is threadedly connected to the rotating member 63. The driving angle of the driving member 61 changes, which also drives the changing angle of the rotating member 63 accordingly. The rotating member 63 also adjusts the rotation angle in real time through the second connecting hole to keep consistent with the driving member 61, so that the driving member 61 maintains the angle corresponding to the rotating member 63 in real time, so as to facilitate the driving member 61 to better drive the rotating member 63, and further facilitate the realization of the folding function of the ducted propulsion system 3 to avoid jamming.

[0075] like Figure 1 and 2 As shown, as an embodiment, the fire monitor 7 includes a hose connector 71, which is fixed on the first support beam 1 and is conveniently connected to the hose, so that the fire extinguishing agent in the liquid tank 9 can enter the fire monitor 7 through the hose and be sprayed through the fire monitor 7 to achieve the purpose of fire extinguishing; the fire monitor 7 also includes a main water pipe 72, which is used to guide the fire extinguishing agent, and also includes a diverter joint 73, which is connected to the hose connector 71, and the main water pipe 72 is connected to the diverter joint 73, and the other joint of the diverter joint 73 extends in other directions. By setting the diverter joint 73, the fire extinguishing agent can be diverted, so that the ducted drone can be installed with more main water pipes 72 for fire extinguishing, thereby improving the fire extinguishing effect.

[0076] like Figure 2 As shown, optionally, a water hose connector 71 can be set on the lower end surface of the first support beam 1 to facilitate the connection of the water hose to the water hose connector 71. One of the diversion joints 73 is connected to the main water pipe 72 in the horizontal direction, and the other joint extends upward, so that an additional main water pipe 72 can be installed above the first support beam 1, thereby increasing the flow of the ducted UAV.

[0077] Optionally, a flow sensor and a water spray cannon head may be provided at the end of the main water pipe 72. The flow sensor is used to detect the flow rate, and the water spray cannon head can change the shape of the water splash.

[0078] like Figure 3 As shown, optionally, the fire water monitor 7 also includes a fuselage mounted water pipe 74, which is arranged inside the first support beam 1 and is connected to another joint of the diversion joint 73, so that the fire extinguishing agent can be diverted upward, so that an additional main water pipe 72 can be installed on the upper end surface of the first support beam 1.

[0079] like Figure 3 As shown, optionally, a water pipe mounting component 75 is further provided in the first support beam 1. The water pipe mounting component 75 is located at the center of the first support beam 1. The water pipe mounting component 75 is sleeved on the outer periphery of the fuselage mounted water pipe 74, which can protect the fuselage mounted water pipe 74 and also support the first support beam 1 in the vertical direction.

[0080] like Figure 3As shown, as an embodiment, the first support beam 1 includes a plurality of carbon fiber plates 11, and the plurality of carbon fiber plates 11 are spliced ​​into a frame structure. By splicing the carbon fiber plates 11 into a frame structure, the overall weight of the ducted UAV can be reduced, and the strength can also be improved to meet the strength and rigidity requirements of the ducted UAV; the first support beam 1 also includes a plurality of support members 12, and the support members 12 are connected to two adjacent carbon fiber plates 11, and the support members 12 protrude from both sides of the frame structure and are used to connect to the ducted propulsion system 3, so that the support members 12 can be connected to both the two carbon fiber plates 11 and the two ducted propulsion systems 3, thereby reducing the number of parts of the ducted UAV, reducing the weight of the ducted UAV, and facilitating control.

[0081] like Figure 3 , 10 As shown in 11, optionally, the support member 12 includes a support sheet 121 and a support seat 122, and the support sheet 121 passes through the cross-section of the first support beam 1 to reduce the occupied area and also improve the structural stability of the first support beam 1; both sides of the support sheet 121 are provided with convex portions protruding from the support sheet 121, and the convex portions can be connected to two adjacent carbon fiber plates 11 in the vertical direction, and the support seat 122 protrudes from the first support beam 1, and can cooperate with the clamp to fix the landing gear of the ducted UAV.

[0082] Optionally, the support member 12 may also be used to fix the ducted propulsion system 3 . The ducted propulsion system 3 includes a duct body. The duct body is a cylindrical structure and may be fixedly connected to the support member 12 by bolts.

[0083] Optionally, the structure of the second support beam 2 is the same as that of the first support beam 1 , and the connection position between the first support beam 1 and the second support beam 2 can be connected by welding or by a support member 12 .

[0084] Optionally, the first support beam 1 further includes an L-shaped aluminum bracket 13, and the L-shaped aluminum bracket 13 is used to connect the carbon fiber plates 11 in the horizontal direction and the vertical direction.

[0085] like Fig. 9 As shown, in the second aspect, an embodiment of the present application provides a fire truck, on which a ducted drone is installed. The ducted drone can be connected to a water hose to achieve fire extinguishing operations; at the same time, due to the small size of the ducted drone, the space utilization rate of the fire truck can be improved, so that the fire truck can pass through some narrow areas and improve adaptability.

[0086] like Fig. 9As shown, optionally, the fire truck is further provided with a power generation module 8, which is arranged at the rear side of the fire truck cab. The fire truck is also equipped with a liquid tank 9, which is located at the rear of the fire truck. Since the liquid tank 9 stores fire extinguishing agent, it is heavy; and the power generation module 8 also has a certain weight, therefore, the power generation module 8 is arranged at the rear side of the cab, and the liquid tank 9 is arranged at the rear of the fire truck, which can balance the weight of the entire fire truck and meet the stability when driving the fire truck; at the same time, the layout is reasonable, and the space utilization rate on the fire truck is also improved;

[0087] like Fig. 9 As shown, the fire truck is also equipped with a mooring cable reel 10, which is located at the rear side of the power generation module 8, shortening the distance between the mooring cable reel 10 and the power generation module 8, and facilitating the connection between the mooring cable reel 10 and the power generation module 8; the fire truck is also provided with a water pump system 14, which is located between the mooring cable reel 10 and the liquid tank 9. The layout is reasonable, which also shortens the distance between the water pump system 14 and the liquid tank 9, reduces the connection of pipelines, and also makes the fire-fighting upper device compact in structure, improves space utilization, facilitates the fire-fighting upper device to pass through a narrow area, and improves fire-fighting efficiency.

[0088] The liquid tank 9, the water pump system 14 and the moored cable reel 10 are arranged along the same length direction of the fire truck body and are all located at the bottom of the body; the position near the top of the body is used to accommodate the ducted drone, so that the layout of the various components in the body of the embodiment of the present application is reasonable, the degree of integration is high, and the flow rate of the fire extinguishing agent can be increased.

[0089] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0090] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0091] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A ducted UAV for firefighting, characterized in that: include: A first longitudinally extending support beam, with at least three ducted propulsion systems disposed on both sides along a width direction perpendicular to the length direction of the first support beam; A fire-fighting water monitor is provided on the first supporting beam, and the fire-fighting water monitor can spray a fire-extinguishing agent.

2. The ducted UAV according to claim 1, characterized in that: The ducted UAV also includes a second support beam, which is vertically connected to the first support beam, and at least two ducted propulsion systems are fixedly connected to one side of the first support beam, and at least two ducted propulsion systems are fixedly connected to one side of the second support beam; the multiple ducted propulsion systems are all arranged to be tilted upward.

3. The ducted UAV according to claim 1, characterized in that: At least one foldable ducted propulsion system is provided on the first support beam.

4. The ducted UAV according to claim 3, characterized in that: At least four of the ducted propulsion systems are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam, and the two ducted propulsion systems located at both ends of the same side of the first support beam are configured as a first ducted propulsion system and a second ducted propulsion system. The first ducted propulsion system and the second ducted propulsion system can be folded along the length direction of the first support beam respectively toward the ducted propulsion system connected thereto.

5. The ducted UAV according to claim 3, characterized in that: Four ducted propulsion systems are provided on one side of the first support beam, three of which are connected to the first support beam, and the three ducted propulsion systems are configured as a first ducted propulsion system, a second ducted propulsion system and a third ducted propulsion system, and the second ducted propulsion system is located between the first ducted propulsion system and the third ducted propulsion system; another ducted propulsion system is connected to the second ducted propulsion system and can be folded toward the second ducted propulsion system along a length direction perpendicular to the first support beam.

6. The ducted UAV according to claim 3, characterized in that: Three of the ducted propulsion systems are arranged on one side along the horizontal direction perpendicular to the length direction of the first support beam, and one of the ducted propulsion systems is provided at each end of the first support beam. The two ducted propulsion systems located at the two ends of the first support beam can be folded toward the first support beam along the length direction of the first support beam.

7. The ducted UAV according to any one of claims 3 to 6, characterized in that: The ducted UAV is also provided with a folding mechanism, and the ducted propulsion system is folded by the folding mechanism; The folding mechanism includes a first connecting member and a second connecting member that are rotatably connected, and the first connecting member and the second connecting member are respectively connected to the two ducted propulsion systems. The folding mechanism also includes a driving component, and the driving component is connected to the first connecting member and the second connecting member. The driving component can drive the second connecting member to flip relative to the first connecting member.

8. The ducted UAV according to claim 7, characterized in that: The first connecting member is provided with a first through hole, and the driving assembly comprises a driving member, the driving member is arranged at the position of the first through hole and is rotatably connected to the first connecting member; The second connecting member is provided with a second through hole, and the driving assembly further comprises a rotating member, the rotating member is arranged at the position of the second through hole and is rotatably connected to the second connecting member; The driving assembly also includes a connecting rod, one end of which is threadedly connected to the rotating member, and the other end of which is connected to the driving member, and the driving member is used to drive the connecting rod to rotate.

9. The ducted UAV according to claim 8, characterized in that: The driving member is provided with a first connecting hole, the driving member is rotatably connected to the first connecting member through the first connecting hole, the second connecting member can be turned over by the connecting position of the first connecting member and the second connecting member, the axis of the second connecting member for turning over is parallel to the axis of the first connecting hole, and the axis of the connecting rod is perpendicular to the first connecting hole; The rotating member is provided with a second connecting hole, and the rotating member is rotatably connected to the second connecting member through the second connecting hole. The second connecting member can be flipped about an axis through the connection position between the first connecting member and the second connecting member, and the axis for flipping the second connecting member is parallel to the axis of the second connecting hole, and the axis of the connecting rod is perpendicular to the second connecting hole.

10. The ducted UAV according to any one of claims 1 to 6, characterized in that: The fire-fighting water monitor includes a water hose connector, which is fixed on the first support beam. The fire-fighting water monitor also includes a main water pipe and a diversion joint, which is connected to the water hose connector. One of the diversion joints is connected to the main water pipe, and the other extends in other directions.

11. The ducted UAV according to claim 10, characterized in that: The first support beam comprises a plurality of carbon fiber plates, and the plurality of carbon fiber plates are spliced ​​into a frame structure; The first support beam further includes a plurality of support members, wherein the support members are connected to two adjacent carbon fiber plates, and the support members protrude from both sides of the frame structure and are used to be connected to the ducted propulsion system.

12. A fire truck, characterized in that: The fire truck is equipped with a ducted drone for firefighting according to any one of claims 1 to 11.

Images