Hot air balloons capable of directional flight, reconfigurable aircraft, and balloon-like aircraft

Abstract

The present invention discloses a hot air balloon capable of directional flight, a reconfigurable aircraft, and a balloon-type aircraft, comprising a body, a control assembly arranged on the body, and at least one set of drive assemblies; the body comprises a balloon, and a hanging basket connected to the balloon through a connecting device; a plurality of air outlets are preset inside and outside the balloon; the drive assembly is used to promote air flow to push hot air flow or cold air flow out of the corresponding air outlet; the control assembly comprises a plurality of control valves, through which the on-off of the corresponding air outlet is controlled and the start and stop of the drive assembly are controlled, so that the cold / hot air outputted from the air outlet inside the balloon controls the vertical rise and fall of the hot air balloon, and the reverse thrust generated by the cold / hot air flow outputted from the air outlet outside the balloon controls the vertical descent of the hot air balloon or parallel flight in different directions. The present invention utilizes a design of heating air without an open flame, and realizes the directional flight of the hot air balloon, making the hot air balloon flight safer and more stable.

Description

Technical Field

[0001] The present invention relates to the field of aircraft, and in particular to a hot air balloon capable of directional flight, a reconfigurable aircraft and a balloon-type aircraft. Background Art

[0002] Hot air balloons can also be called AX-type balloons. The balloon is filled with air and heated. Based on the principle that hot air will rise above cold air, the hot air becomes lighter and the balloon gains lift. In essence, hot air is lighter than cold air because the mass of hot air per unit volume is smaller. One cubic decimeter of air weighs about 1 gram. If heated to 37.8 degrees Celsius, the weight of the same volume of air will decrease by about 0.25 grams. Therefore, every cubic decimeter of air in a hot air balloon can lift an object of 0.25 grams. If a hot air balloon wants to lift an object of 454 kilograms, it needs about 1,840 cubic meters of hot air. The balloon is kept rising by continuously heating the air. Based on this, the hot air balloon uses a burner located below the opening of the balloon to achieve continuous heating. When the air in the balloon cools down, the pilot can reheat the air by igniting the burner.

[0003] The research and development team of the inventor of this application has been committed to the research and development of aircraft for many years. During the actual application of hot air balloons, it was found that the existing hot air balloons have many drawbacks.

[0004] 1. Hot air balloon launch preparation is slow. Common hot air balloon launch preparation work includes first using a blower-like device to inflate the balloon, and then ignite it after it is inflated to a certain degree to open the balloon opening, heating the air in the balloon. The hot air makes the balloon rise to a vertical position. The operation process is very complicated and requires the cooperation of multiple staff members to complete the preparation work.

[0005] 2. It completely relies on natural power, and the controllability during flight is poor. The only power for hot air balloons is wind. The wind has different directions and speeds at different altitudes. The pilot chooses the appropriate altitude according to the flight needs. The flight speed depends entirely on the wind speed. Since hot air balloons drift with the wind, it is difficult to return to the starting point. Ground crew members need to drive to follow the flying hot air balloon and arrive at the landing point in advance to assist in restoring the balloon's folded state and transporting it. A hot air balloon requires the services of 3 to 4 ground crew members and ground radio equipment to ensure the safety of the flight.

[0006] 3. Hot air balloons use open flames, which poses a serious safety hazard and can easily cause fires and lead to serious accidents. Hot air balloon flight accidents are not uncommon, and most are caused by fires. Summary of the invention

[0007] To solve the above problems, the embodiments of the present application provide a directionally flight hot air balloon, a reconfigurable aircraft and a balloon-type aircraft, which achieve a design without open flames to generate flight driving force, thereby avoiding the occurrence of fires to a certain extent, and can control the hot air balloon to fly in a direction as required, while also realizing unmanned or remotely piloted hot air balloons.

[0008] In a first aspect, an embodiment of the present application provides a hot air balloon capable of directional flight, comprising a body, a control component disposed on the body, and at least one set of drive components;

[0009] The body includes a balloon and a hanging basket connected to the balloon through a connecting device; a plurality of air outlets are preset inside and outside the balloon;

[0010] The driving assembly is used to promote air flow so as to push hot air flow or cold air flow out from the corresponding air outlet;

[0011] The control component includes a plurality of control valves, through which the corresponding air outlets of the airflow duct component are controlled to be on and off, and the drive component is controlled to start and stop, so that the cold / hot air output through the air outlet inside the balloon controls the vertical ascent and descent of the hot air balloon, and the reverse thrust generated by the cold / hot airflow output through the air outlet outside the balloon controls the hot air balloon to descend vertically or fly parallel in different directions.

[0012] Furthermore, the driving assembly includes an air collecting hood, an airflow duct assembly and a combustion system; the bottom of the air collecting hood is open and is suspended from the combustion system so that the airflow generated by the combustion system directly enters the air collecting hood; the airflow duct assembly can be detachably installed on the balloon, and includes an air inlet connected to the air collecting hood and a plurality of air outlets arranged inside and outside the balloon; the hot airflow or cold airflow output from the air collecting hood enters the air inlet, is transmitted along the airflow duct assembly, and flows out from the corresponding air outlet.

[0013] Furthermore, the combustion system at least includes an open flame nozzle and an igniter, and the igniter is used to ignite the gas sprayed from the open flame nozzle.

[0014] Furthermore, the combustion system comprises a combustion device and an airflow driving device, wherein the combustion device is provided with a combustion chamber for blocking the ejection of open flames.

[0015] The flame of the gas combustion performs gas combustion in the combustion chamber and utilizes heat transfer to achieve air heating; the airflow pushing device is located below the combustion device and is used to promote the accelerated flow of hot air or cold air above it.

[0016] Furthermore, the combustion system includes a first rotating turbine, a second rotating turbine, and a second combustion hood.

[0017] The first rotating turbine is coaxially arranged below the second rotating turbine, and the blade size of the first rotating turbine is shorter than the blade size of the second rotating turbine;

[0018] The wind collecting cover covers the second rotating turbine and is suspended above the first rotating turbine;

[0019] The second combustion cover has an opening at the top and surrounds the first rotating turbine, and the open flame nozzle is arranged at the bottom thereof and is aimed at the blades of the first rotating turbine;

[0020] In the second combustion hood, the flame ejected from the open flame nozzle drives the first rotating turbine to rotate, and drives the coaxially arranged second rotating turbine to rotate, so that the second rotating turbine extracts the hot air pushed by the first rotating turbine and the cold air outside the second rotating turbine, and after the hot air and the cold air are mixed, they are accelerated and pushed into the wind collecting hood; and the air flow temperature in the wind collecting hood is adjusted by adjusting the fire intensity of the open flame nozzle.

[0021] Furthermore, the combustion system also includes a driving motor, an output end of which is connected to the central axis of the first rotating turbine to further drive the first rotating turbine to rotate.

[0022] Further, the airflow duct assembly includes a first airflow duct, a second airflow duct and a third airflow duct;

[0023] One end of the first airflow duct, the second airflow duct and the third airflow duct serves as an air inlet, and all are connected to the air collecting hood;

[0024] The other end of the first airflow duct is disposed inside the balloon and serves as an air outlet for outputting cold / hot air to the inside of the balloon to drive the hot air balloon to rise and fall vertically;

[0025] The other ends of the plurality of second airflow ducts are located within the margin range of the balloon average resistance action point and are evenly arranged along different directions of the outer surface of the balloon as air outlets, and utilize the reverse thrust generated by the output cold / hot airflow to drive the hot air balloon to fly in parallel in different directions;

[0026] The other end of the third airflow duct is arranged at the top of the balloon as an air outlet, and the reverse thrust generated by the output cold / hot airflow is used to drive the hot air balloon to descend vertically.

[0027] Furthermore, the driving assembly also includes a lifting device, which is fixed on the connecting device and is used to support and install the wind collecting hood and the combustion system.

[0028] Furthermore, a support member is fixedly provided on the lifting device, and the combustion device and the wind collecting cover are fixedly installed through the support member, so that the combustion device is suspended above the airflow driving device;

[0029] or,

[0030] The support member supports the air collecting hood and indirectly supports the connecting shaft between the first rotating turbine and the second rotating turbine, so that the air collecting hood is covered on the second rotating turbine and suspended above the first rotating turbine.

[0031] Furthermore, the combustion device includes a first combustion hood; the combustion chamber is arranged inside the first combustion hood; the open flame nozzle and the igniter are arranged below the combustion chamber, and the flame of the combustion of the gas ejected from the open flame nozzle is located in the combustion chamber.

[0032] Furthermore, the first combustion cover includes a blocking surface and an exhaust surface, and a plurality of exhaust holes are arranged on the exhaust surface; the blocking surface is aligned with the open flame nozzle to block the open flame of the gas combustion from spraying out of the combustion chamber; and the heated air in the combustion chamber is discharged through the exhaust holes.

[0033] Furthermore, the combustion device also includes a plurality of heat conducting plates, which are arranged circumferentially along the first combustion cover, and the heat of combustion is transferred through the heat conducting plates to heat the air passing through the heat conducting plates.

[0034] Furthermore, the driving assembly also includes a gas source, which includes a first storage device arranged in the hanging basket and storing gas, and a gas guide pipe connecting the first storage device and the open flame nozzle.

[0035] Furthermore, the airflow driving device includes rotating blades, a drive shaft and an engine. The engine is fixed on the lifting device, and its output end is connected to the rotating blades through the drive shaft to drive the rotating blades to rotate, so as to promote the accelerated flow of cold air or hot air in the air collecting hood.

[0036] Furthermore, the driving assembly also includes a power source, which includes a second storage device for storing fuel disposed in the hanging basket, and an oil pipeline connecting the second storage device and the engine.

[0037] Furthermore, additional balloons are symmetrically arranged on both sides of the main body of the balloon, so that the main body of the balloon is elliptical, thereby reducing the resistance encountered during level flight.

[0038] Furthermore, a protective airbag is provided on the balloon, and the protective airbag prevents the air outlet from generating a reaction force to cause deformation of the balloon surface.

[0039] In a second aspect, an embodiment of the present application provides a reconfigurable aircraft for conversion into a hot air balloon capable of directional flight as described in any one of the first aspects.

[0040] In a third aspect, an embodiment of the present application provides a balloon-type aircraft, which adopts the hot air balloon structure capable of directionally flying as described in any one of the first aspects.

[0041] The hot air balloon capable of directional flight, the reconfigurable aircraft, and the balloon-like aircraft provided in the embodiments of the present application have at least the following technical effects:

[0042] 1. Due to the use of a combustion device, gas combustion can be carried out in the combustion chamber of the combustion device, which effectively solves the technical problem of fire caused by hot air balloon combustion caused by open flames in the prior art, and thus realizes a non-open flame heating design, making the use of hot air balloons safer.

[0043] 2. Since an airflow propulsion device is adopted and arranged below the combustion device, when the combustion device is burning, the airflow propulsion device promotes the flow of hot air, and when the combustion device is not burning, the airflow propulsion device promotes the flow of cold air. Thus, the power of the airflow propulsion device can be adjusted according to demand, and the airflow flow can be adjusted according to demand, so that the airflow is transported to the desired destination.

[0044] 3. Due to the use of a wind collecting hood and a number of airflow ducts, the airflow ducts are connected to the wind collecting hood and to the inside and surface of the balloon, so that the generated cold airflow / hot airflow can be more accurately delivered to the required position, and the flight mission can be completed more efficiently. For example, the hot airflow is delivered to the inside of the balloon to start vertical ascent, the cold airflow is delivered to the inside of the balloon to start vertical descent, and the cold airflow / hot airflow is delivered to the corresponding airflow duct on the surface of the balloon to fly in the corresponding opposite direction.

[0045] 4. Since the airflow ducts are detachable and can be installed inside and on the surface of the balloon, the application mode of the hot air balloon is expanded. When the airflow ducts are removed, the hot air balloon can be flown as a traditional hot air balloon, and the airflow ducts are installed so that the hot air flow can achieve directional flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the structure of the driving assembly of the hot air balloon capable of directional flight in Example 1 of the present application;

[0047] Figure 2 A side view of the driving assembly structure of the hot air balloon capable of directional flight in Example 1 of the present application;

[0048] Figure 3 This is a front view of the driving assembly structure of the hot air balloon capable of directional flight in Example 1 of the present application;

[0049] Figure 4 This is a cross-sectional view of the installation structure of the combustion device and the airflow driving device in the first embodiment of the present application;

[0050] Figure 5 This is a cross-sectional view of the structural details of the combustion device and the airflow driving device in the first embodiment of the present application;

[0051] Figure 6 This is a schematic diagram of the installation structure of the combustion device in Example 1 of the present application;

[0052] Figure 7 This is a schematic diagram of the installation structure of the handle in Example 1 of the present application;

[0053] Figure 8 This is a schematic diagram of the construction structure of an airflow duct assembly in Example 1 of the present application;

[0054] Fig. 9 This is a side view of the construction structure of an airflow duct assembly in Example 1 of the present application;

[0055] Fig.10 This is a force analysis diagram of the hot air balloon in Example 1 of the present application;

[0056] Fig.11 This is a partial side view of the structure of another combustion system in Example 1 of the present application;

[0057] Fig.12 This is a schematic diagram of the partial structure of another combustion system in Example 1 of the present application;

[0058] Fig.13 This is a schematic diagram of the hot air balloon structure with an additional balloon in Example 1 of the present application;

[0059] Fig.14 This is a schematic diagram of the hot air balloon structure containing a ring-shaped airbag in Example 1 of the present application;

[0060] Fig.15 This is a schematic diagram of the structure of a hot air balloon containing an attached airbag in Example 1 of the present application.

[0061] Figure numbers: hanging basket 11, connecting device 12, wind collecting hood 13, air flow duct assembly 14, control valve 41, lifting device 15, support 16, air flow driving device 30, rotating blades 31, engine 32, combustion device 200, combustion chamber 210, first combustion hood 220, open flame nozzle 230, igniter 240, blocking surface 221, exhaust surface 222, exhaust hole 223, heat conductive sheet 224, first storage device 51, air guide pipe 52, second storage device 61, oil pipeline 62, handle 17, first rotating turbine 311, second rotating turbine 312, second combustion hood 313, connecting shaft 314, fixing part 315, main body 400, additional balloon 410, air outlet 420, gas exchange port 430, annular airbag 18a, attached airbag 18b. DETAILED DESCRIPTION

[0062] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0063] Embodiment 1

[0064] Reference Figure 1-9 As shown, an embodiment of the present application provides a hot air balloon capable of directionally flying, comprising a hot air balloon body, a control component arranged on the hot air balloon body, and at least one set of driving components.

[0065] The hot air balloon body in this embodiment includes a balloon and a hanging basket 11 connected to the balloon through a connecting device 12. Cold / hot air is blown into the balloon to expand the balloon and the hot air makes the inside of the balloon have a lower density than the external air, so the specific gravity becomes lighter and vertical lifting is achieved. Then, when the lift generated by the balloon is greater than the gravity of the entire hot air balloon, the hanging basket 11 is driven to be dragged. Both the traditional hot air balloon and the hot air balloon designed in this embodiment are improved based on this principle.

[0066] The main purpose of the hot air balloon provided in this embodiment is to achieve directional flight, which is different from the traditional hot air balloon that drifts with the wind, thus making the hot air balloon an epoch-making reform.

[0067] In this embodiment, a plurality of air outlets are preset inside and outside the balloon. The driving component is used to promote air flow to push hot air flow or cold air flow out from the corresponding air outlets.

[0068] The control component in this embodiment includes multiple control valves 41, which control the opening and closing of the corresponding air outlets of the airflow duct component 14 and the start and stop of the driving component, so that the cold / hot air output through the air outlet inside the balloon can control the vertical rise and fall of the hot air balloon, and the reverse thrust generated by the cold / hot airflow output through the air outlet outside the balloon can control the hot air balloon to descend vertically or fly parallel in different directions.

[0069] The driving assembly in this embodiment includes an air collecting hood 13, an airflow duct assembly 14 and a combustion system.

[0070] The air collecting hood 13 is open at the bottom and is suspended from the combustion system so that the airflow generated by the combustion system directly enters the air collecting hood 13; the airflow duct assembly 14 is detachably mounted on the balloon, and is connected to the air inlet of the air collecting hood 13 and to a plurality of air outlets inside and outside the balloon; the hot airflow or cold airflow in the air collecting hood 13 enters the air inlet, is transmitted along the airflow duct assembly, and flows out from the corresponding air outlet. In one embodiment, the air collecting hood 13 adopts a cylindrical structure with openings at both ends and a small upper part and a large lower part, and the airflow flows from bottom to top. A movable window may be provided on the top, which can be opened or closed. When the combustion system is used to promote air flow, the small upper part and a large lower part cylindrical structure further promote the flow of gas. The airflow duct assembly 14 in this embodiment is detachably mounted on the balloon, and includes an air inlet connected to the air collecting hood 13 and a plurality of air outlets provided inside and outside the balloon. The combustion system in this embodiment promotes the air flow in the wind collecting cover 13 to push the hot air flow or the cold air flow from the wind collecting cover 13 into the air inlet, along the air flow duct assembly 14, and out of the corresponding air outlet. Based on this, this embodiment uses the reaction force generated by the air flow output from the air outlet on the balloon as the driving force for the hot air balloon flight movement.

[0071] In one embodiment, the airflow in the wind collecting hood 13 is not limited to flowing out from the air outlet of the airflow duct assembly 14. When the top window of the wind collecting hood 13 is opened, it can be output from the top of the wind collecting hood 13, and because the top opening of the wind collecting hood 13 is aligned with the opening at the bottom of the balloon, the balloon can be blown directly by the wind collecting hood 13, and the hot air blown out can be used to generate lift, or the cold air blown out can be used to control the descent of the balloon. It can be seen that if the airflow is output through the air outlet of the wind collecting hood 13, the hot air balloon in this embodiment can also fly, but at this time, it is similar to traditional aircraft and can only fly with the wind. Based on this, this embodiment improves the hot air balloon, and uses the reaction force generated by the cold / hot airflow to provide the driving force for the hot air balloon flight movement. Further, the cold / hot airflow is transported to the corresponding position, which is the driving force point of the hot air balloon flight movement, and a airflow duct assembly 14 suitable for transmitting cold / hot airflow inside the hot air balloon is further designed.

[0072] The present embodiment is not limited to designing a structure of an airflow duct assembly 14. In one embodiment, the airflow duct assembly includes a first airflow duct, a second airflow duct and a third airflow duct; one end of the first airflow duct, the second airflow duct and the third airflow duct is used as an air inlet, and is connected to the wind collecting hood 13, and receives cold airflow / hot airflow from the wind collecting hood 13, and transmits it to the air outlet. The other end of the first airflow duct in the present embodiment is arranged inside the balloon, as an air outlet, for outputting cold / hot air to the inside of the balloon, driving the hot air balloon to rise and fall vertically. Further explanation, when hot air is output, the density inside the balloon is lower than the density outside the balloon due to the hot air, thereby generating lift, so that the hot air balloon can stand up vertically when it is ready to start, further obtain hot air, and the lift gradually increases, and finally drives the hanging basket to rise. When cold air is output, it descends vertically in contrast to the principle of hot air.

[0073] The other ends of the multiple second airflow ducts in this embodiment are located within the margin range of the average resistance action point of the balloon, and are evenly arranged in different directions along the outer surface of the balloon, as air outlets, and the reverse thrust generated by the output cold / hot airflow is used to drive the hot air balloon to fly parallel in different directions. For example, the second airflow ducts include 4, which respectively represent driving positions in 4 different directions. When the output port of one of the second airflow ducts outputs airflow, the force generated propels the hot air balloon in the opposite direction of the airflow output direction. The second airflow ducts in this embodiment can be set in multiple groups in the same direction, preferably two groups, and the air outlet of each group of the second airflow ducts is set at a critical position of the margin range.

[0074] The other end of the third airflow duct in this embodiment is arranged at the top of the balloon as an air outlet, and the reverse thrust generated by the output cold / hot airflow is used to drive the hot air balloon to descend vertically.

[0075] The installation structures of the first airflow duct, the second airflow duct, and the third airflow duct are further described. There are many optional installation structures.

[0076] The first type is that the first airflow duct, the second airflow duct and the third airflow duct are not connected to each other. One end of the air outlet of the first airflow duct directly extends into the top of the inner side of the balloon, and the end of the first airflow duct is fixed to the inside of the balloon, but does not affect the air outlet of the first airflow duct. The other end is connected to the wind collecting cover 14, so that the hot airflow / cold airflow can be directly sent into the balloon, and the hot airflow / cold airflow will not be blown from the balloon mouth to other places.

[0077] The second airflow duct is arranged along the balloon surface by using a plurality of duct mounting parts, and can be installed in the following ways:

[0078] In the first way, the pipeline installation part is a pipeline installation channel, and the pipeline installation channel is laid along the corresponding positions of the inner / outer surface of the balloon, and these positions are associated with the average resistance action points of the balloon. The pipeline installation channel in this embodiment can be made of the material used by the balloon. When installing the second airflow pipeline, it is only necessary to pass the corresponding second airflow pipeline through the pipeline installation channel at the corresponding position. Of course, in order to ensure the stability of the installation of the second airflow pipeline, the second airflow pipeline can be fixed with a fixing part to prevent the second airflow pipeline from loosening and slipping.

[0079] In the second method, the pipe mounting part is a zipper, and the zipper teeth are respectively arranged at the corresponding positions of the inner / outer surface of the balloon and on the second air flow pipe. During installation, the second air flow pipe is installed on the inner / outer surface of the balloon through the pull head.

[0080] In the third method, the pipeline installation member is a buckle assembly, a plurality of buckles are arranged at corresponding positions on the inner / outer surface of the balloon, a plurality of clamping holes are arranged on the second airflow pipeline, and the second airflow pipeline is installed by mounting the clamping holes on the second airflow pipeline on the buckles on the balloon surface. Of course, the buckle structure is not limited to the buckle-and-hole structure, and can also be an AB buckle structure, etc.

[0081] Further, the second airflow duct in the present embodiment can be arranged inside the balloon or outside the balloon. When inside the balloon, the air outlet extends out of the balloon. Whether inside or outside the balloon, the air outlet direction of the second airflow duct is preferably designed to be parallel to the average resistance point of the balloon. When the second airflow duct is installed inside the balloon, it is sufficient to ensure the air tightness of the balloon. Two examples are given. In the first, the pipeline mounting part is a pipeline mounting channel. The inside of the pipeline mounting channel is not connected to the inside of the balloon, but the inside of the pipeline mounting channel is connected to the outside of the balloon. The second airflow duct is inserted into the inside of the pipeline mounting channel, which can meet the air tightness requirements inside the balloon and ensure that the second airflow duct can transport air to the outside of the balloon. When the pipeline mounting channel is laid on the surface of the balloon and is not used, the end of the pipeline mounting channel can be clamped with a clip for sealing. When only one end of the pipeline mounting channel is fixed on the balloon, it can be clamped with a clip when not in use, or it can be tied into a knot. There is no limitation on this.

[0082] The second method is to set an installation connection port, such as a threaded interface, on the balloon and the second airflow duct, which is threadedly connected during installation. When installation is not required, the threaded interface on the balloon can be sealed with a suitable threaded cover.

[0083] Further examples are given to illustrate that the air outlets of all the second airflow ducts are evenly arranged along the surface of the balloon. For example, 4 second airflow ducts are arranged. Among the air outlets of all the second airflow ducts in the same plane, the angle between the air outlets of adjacent second airflow ducts and the center of the plane is 90°. If 8 second airflow ducts are arranged, all in the same plane, then by analogy, the angle is 45°. When 8 second airflow ducts are arranged, they are not in the same plane. A further preferred solution is to divide them into two groups of upper and lower second airflow ducts, with an angle of 90° between adjacent ones in the same plane. It can be seen that all the first airflow ducts, the second airflow ducts and the third airflow ducts in this design are not intercommunication. Control valves are respectively arranged on each of the first airflow ducts, the second airflow ducts and the third airflow ducts to achieve control of the corresponding airflow transmission.

[0084] The third airflow duct can adopt one of the methods of the second airflow duct, for example, the duct mounting part is a duct mounting channel, the interior of the duct mounting channel is not connected to the interior of the balloon, but the interior of the duct mounting channel is connected to the outside of the balloon, one end of the third airflow duct is connected to the wind collecting hood 13, and the other end passes through the duct mounting channel to connect to the top of the outer side of the balloon.

[0085] In addition to installing the second airflow duct on the surface of the balloon, the second airflow duct and the third airflow duct can also be built inside the balloon, and a hole is pre-opened on the balloon, and a pipeline mounting piece is arranged around the hole. When the second airflow duct is installed by using the hole, the pipeline mounting piece is wrapped and clamped on the second airflow duct to ensure the air tightness of the balloon hole position and the stability of the installation of the second airflow duct. The pipeline mounting piece can be an installation channel connected to the outside of the balloon, but the inside of the installation channel is not connected to the inside of the balloon. Further explanation, multiple openings are preset on the balloon, and multiple pipeline mounting pieces are respectively arranged. Each first airflow duct, the second airflow duct, and the third airflow duct pass through the pipeline installation channel, and then use the multi-way valve device and the main airflow duct to connect the main airflow duct to the air collection cover 13 and a valve port of the multi-way valve device, and the air inlets of the other first airflow ducts, the second airflow ducts, and the third airflow ducts are connected to the multi-way valve device, and the various valves of the multi-way valve device can be controlled to realize the on-off of the airflow in the first airflow duct, the second airflow duct, and the third airflow duct. To further illustrate, the airflow duct assembly includes a first airflow duct, four second airflow ducts and a third airflow duct, a seven-way valve device and a main airflow duct are provided, the main airflow duct is connected to the seven-way valve device and the wind collecting cover 13, the first airflow duct is connected to the seven-way valve device and the inner top of the balloon, the second airflow duct is connected to the seven-way valve device and the balloon surface, and extends out of the balloon outer surface. By analogy, the installation structure of the airflow duct assembly 14 is varied. In this embodiment, the structure of the airflow duct assembly 14 is realized with an air outlet arranged inside the balloon and an air outlet arranged outside the balloon. For the specific airflow duct assembly 14, this embodiment does not limit it. As long as the air outlet design requirements in this embodiment are followed, the various structures of the airflow duct assembly 14 are within the description scope of this embodiment.

[0086] Regardless of whether the airflow duct assembly is installed on the surface of the balloon or the airflow duct assembly is built inside the balloon, the balloon needs to be modified and designed in advance.

[0087] Further explanation, since the weight in the hanging basket 11 is not limited, the hanging basket 11 can transport goods of different weights. Based on the force analysis of the balloon in the hot air balloon, the average resistance point of the balloon will move up and down with the weight change of the goods in the hanging basket 11. Based on this, in order to improve the vertical ascent and descent and parallel flight power of the hot air balloon, two or more groups of airflow duct assemblies 14 can be set in this embodiment, and the wind collecting cover 13 is connected at the same time. When the maximum driving force is required, all corresponding air outlets in the corresponding airflow duct assembly 14 are opened. In this embodiment, preferably, two groups of airflow duct assemblies 14 are used, and the air outlets outside the balloon are evenly arranged at the critical position of the margin range of the average resistance point.

[0088] Furthermore, the airflow duct assembly 14 in this embodiment can be made of a light hard pipe or a light hose. The pipe material is selected accordingly according to the specific structure.

[0089] Among them, the other ends of the multiple second airflow ducts are located within the margin range of the balloon's average resistance action point, and are evenly arranged in different directions along the outer surface of the balloon to serve as air outlets, and utilize the reverse thrust generated by the output cold / hot airflow to drive the hot air balloon to fly parallel in different directions. Furthermore, the position of the air outlet of the second airflow duct is preferably such that the air outlet and the balloon's average resistance action point are located in the same plane. From the force analysis of the hot air balloon, it can be known that the center of gravity of the hot air balloon body is located below the balloon. The air outlet of the second airflow duct is set within the margin range of the balloon's average resistance action point. Fig.10 The force analysis diagram of the hot air balloon shown in the figure shows that when the hot air balloon is in a static suspended state, gravity G = buoyancy F1; gravity G and buoyancy F1 are on the same vertical line, in opposite directions and equal in magnitude. When the hot air balloon needs to move, for example, upward movement: gravity G < buoyancy F1; downward movement: gravity G > buoyancy F1; forward, backward, left and right movement: resistance F2 < thrust F3, thrust and resistance are on the same horizontal line. Thrust F3 is the windward resistance, which is affected by the shape of the windward surface of the balloon and the direction of movement. The average resistance point is approximately below the center of the ball. The outlet of the thrust F generated is on the same horizontal line as the average resistance point. Under the condition that gravity G remains unchanged, the buoyancy and thrust in each direction can be appropriately adjusted to control the hot air balloon to move in any direction.

[0090] For the combustion system, this embodiment provides two implementation schemes, and of course the structure of the combustion system is not limited thereto. The implementation scheme of the combustion system of this embodiment is based on a structure including that the combustion system at least includes an open flame nozzle 230 and an igniter 240, and the igniter 240 is used to ignite the gas sprayed from the open flame nozzle 230.

[0091] In one embodiment, the combustion system includes a combustion device 200 and an airflow driving device 30. The combustion device 200 is provided with a combustion chamber 210 for blocking the ejection of open flames. The flame of the gas combustion is burned in the combustion chamber 210, and air heating is achieved by heat transfer, so as to achieve the effect of combustion without open flames. In addition, air heating is achieved by heat transfer, so the air heating method is safer than the traditional hot air balloon heating method. The airflow driving device 30 is located below the combustion device 200, and is used to promote the accelerated flow of hot air or cold air above it, so as to promote the air flow in the wind collecting cover 13, so as to promote the hot air flow or cold air flow from the wind collecting cover 13 into the air inlet, and flow out along the corresponding air outlet of the air flow duct assembly 14. The wind collecting cover 13 in this embodiment is covered with the combustion device 200 and the airflow driving device 30 at the same time. The airflow driving device 30 in this embodiment is used to promote the air flow in the wind collecting cover 13, so as to promote the hot air flow or cold air flow from the wind collecting cover 13 into the air inlet, and flow out along the corresponding air outlet of the air flow duct assembly 14. Based on this, this embodiment utilizes the reaction force generated by the airflow output from the air outlet on the balloon to provide the driving force for the hot air balloon flight.

[0092] The combustion device 200 in this embodiment includes a first combustion cover 220, and a combustion chamber 210 is arranged inside the first combustion cover 220. Among them, an open flame nozzle 230 and an igniter 240 are arranged in the combustion chamber 210, and the igniter 240 is used to ignite the gas sprayed from the open flame nozzle 230, so as to achieve a design without open flames in the visible range of the entire hot air balloon, which is safer and more reliable.

[0093] In one embodiment, the first combustion hood 220 includes a blocking surface 221 and an exhaust surface 222, and a plurality of exhaust holes 223 are arranged on the exhaust surface 222; the blocking surface 221 is aligned with the open flame nozzle 230 to block the open flame of the gas combustion from spraying out of the combustion chamber 210; and the heated air in the combustion chamber 210 is discharged through the exhaust holes 223. Furthermore, the first combustion hood 220 adopts an open column structure, one end of which is open and the other end is sealed, and the open end is used for ventilation, so that when the air in the combustion chamber 210 is exhausted after the gas is burned, fresh air can be replenished in time. The sealed end is used as the blocking surface 221. Compared with the flame sprayed by the flame gun in the existing hot air balloon directly entering the balloon, there is a certain probability that the flame will directly burn the balloon. In this embodiment, the tendency of the flame to rise is directly blocked, and the gas can only burn in the combustion chamber 210, so as to prevent the flame from burning the balloon, and to a certain extent, the occurrence of hot air balloon fire is eliminated. Furthermore, the side of the columnar structure is used as the exhaust surface 222. The exhaust holes 223 in this embodiment are arranged circumferentially on the exhaust surface in a queue form. Since hot air is lighter than cold air, when there is enough hot air in the combustion chamber 210, it will be discharged from the exhaust holes 223.

[0094] The combustion device 200 in this embodiment further includes a plurality of heat conducting sheets 224, which are arranged along the circumference of the first combustion cover 220. The heat of combustion is transferred through the heat conducting sheets 224 to heat the air passing through the heat conducting sheets 224. On the basis of directly exhausting the hot air in the combustion chamber 210, the heat in the combustion chamber 210 is transferred out through the heat conducting sheets 224. Preferably, the heat conducting sheets 224 are arranged circumferentially with the exhaust surface 222 of the first combustion cover 220 as the center, and in order to transfer as much heat in the combustion chamber 210 as possible, as many heat conducting sheets 224 as possible are used.

[0095] In another embodiment, referring to the attached Figure 11-12 As shown, the combustion system includes a first rotating turbine 311, a second rotating turbine 312, and a second combustion cover 313. The first rotating turbine 311 is coaxially arranged below the second rotating turbine 312, and the blade size of the first rotating turbine 311 is shorter than the blade size of the second rotating turbine 312. Further, the blade length of the first rotating turbine 311 is shorter than the blade length of the second rotating turbine 312.

[0096] The wind collecting hood 13 in this embodiment covers the second rotating turbine 312, and is suspended above the first rotating turbine 211. The second combustion hood 313 is open at the top and surrounds the first rotating turbine 311. The open flame nozzle 230 is arranged at the bottom and is aimed at the blades of the first rotating turbine 311. In the second combustion hood 313, the flame ejected from the open flame nozzle 230 drives the first rotating turbine 311 to rotate, and drives the coaxially arranged second rotating turbine 312 to rotate, so that the second rotating turbine 312 extracts the hot air pushed by the first rotating turbine 311 and the cold air outside the second rotating turbine 312, and after the hot air and the cold air are mixed, they are accelerated and pushed into the wind collecting hood 13; and the air flow temperature in the wind collecting hood 13 is adjusted by adjusting the fire intensity of the open flame nozzle 230. Further explanation, in this embodiment, the temperature of the airflow in the wind collecting hood 13 is controlled by controlling the fire intensity of the open flame nozzle 230. Specifically, the second rotary turbine 312 rotates under the drive of the first rotary turbine 311, so the range of the extracted airflow is fixed. If the fire intensity of the open flame nozzle 230 is increased, the corresponding first rotary turbine 311 drives the second rotary turbine 312 to rotate faster, and the heat output of the open flame nozzle 230 increases, so that after mixing with the cold air in a fixed range, the temperature of the mixed air becomes higher. Of course, the temperature of the mixed air is definitely lower than the temperature of the fire ejected by the open flame nozzle 230, higher than the temperature of the surrounding cold air, and the temperature of the mixed air is always lower than the ignition temperature of the balloon and gas components in the hot air balloon.

[0097] Further explanation, the three elements of flame combustion are: combustibles (for example, liquefied gas), combustion-supporting materials (air), and temperatures higher than the ignition point of the combustibles (450-490°C). In this embodiment, the first rotating turbine 311 in the second combustion hood 313 is driven to rotate by the flame ejected by the open flame nozzle 230, and the first rotating turbine 311 drives the coaxially arranged second rotating turbine 312 to rotate, and the first rotating turbine 311 and the second rotating turbine 312 are equivalent to a gas mixing space, which is used to mix and extract hot air and cold air. In this embodiment, the volume of the mixing space between the first rotating turbine 311 and the second rotating turbine 312 is greater than the accommodation volume in the second combustion hood 313, and cold air will enter the mixing space at any time, so as to achieve the beneficial effect of reducing the air density of the mixing space and reducing the temperature of the mixing space. In this embodiment, the accommodation volume in the second combustion hood 313 and the volume of the mixing space are set according to a certain ratio, so that the second rotating turbine 312 can only discharge hot gas, and at the same time, there is no open flame, avoiding potential hidden dangers and increasing the safety factor.

[0098] Further, it is supplemented that the combustion system in this embodiment also includes a driving motor, and the output end of the driving motor is connected to the central axis of the first rotating turbine 311 to further drive the first rotating turbine 311 to rotate.

[0099] The driving assembly in this embodiment also includes a lifting device 15, which is fixed to the connecting device 12 and is used to support and install the wind collecting hood 13 and the combustion system. In one embodiment, the connecting device 12 includes a sling and a support frame, and the support frame connects the hanging basket 11 and the lifting device 15, and is used to suspend the lifting device 15 on the hanging basket 11; the sling connects the balloon and the lifting device 15, and when the balloon rises vertically, the lifting device 15 is dragged by the sling, and the lifting device 15 further drives and drags the support frame and the hanging basket 11 connected thereto.

[0100] In one embodiment, a support member 16 is fixedly provided on the lifting device 15 in this embodiment, and the combustion device 200 and the air collecting cover 13 are fixedly installed through the support member 16, so that the combustion device 200 is suspended above the airflow driving device 30. In one embodiment, the support member 16 is fixedly connected to the peripheral side of the combustion device 200, so that the support member 16 supports the combustion device 200, and at the same time, since the airflow driving device 30 is fixedly provided on the lifting device 15 and located below the combustion device 200, the combustion device 200 is suspended above the airflow driving device 30. Further, a limiting groove is provided at the bottom of the air collecting cover 13, and the limiting groove is fixedly clamped on the support member 16 to realize the installation of the air collecting cover 13, and at the same time, the air collecting cover 13 covers the combustion device 200 and the airflow driving device 30 at the same time. In another embodiment, a mounting hole is provided on the air collecting cover 13, and the combustion device 200 is installed through the mounting hole, and then the air collecting cover 13 with the combustion device 200 installed is fixed on the support member 16, and the airflow pushing device 30 is installed between multiple supports 16, so that the combustion device 200 is suspended above the airflow pushing device 30, and the air collecting cover 13 is simultaneously covered with the combustion device 200 and the pushing device. Furthermore, a handle 17 is provided below the lifting device 15, and when the hot air balloon completes the flight mission, the handle 17 is pulled to lower the lifting device 15, and the relevant devices are adjusted.

[0101] Furthermore, in this embodiment, the airflow pushing device 30 includes a rotating blade 31, a driving shaft and an engine 32. The engine 32 is fixed to the lifting device 15, and its output end is connected to the rotating blade 31 through the driving shaft to drive the rotating blade 31 to rotate, so as to accelerate the flow of cold air or hot air in the wind collecting cover 13. Of course, the airflow pushing device 30 can also be a fan.

[0102] In another embodiment, a support member 16 is fixedly provided on the lifting device 15 in this embodiment, and the support member 16 supports the wind collecting hood 13 and indirectly supports the connecting shaft between the first rotating turbine 311 and the second rotating turbine 312, so that the wind collecting hood 13 is covered on the second rotating turbine 312 and suspended above the first rotating turbine 311. To further illustrate the design of the connecting shaft, a fixing member 315 is provided between the supporting members 16 on the lifting device 15 in this embodiment, and a limiting hole is provided in the fixing member 315. The connecting shaft is movably inserted into the limiting hole, and the two ends are respectively connected to the first rotating turbine 311 and the second rotating turbine 312, so that the first rotating turbine 311 drives the second rotating turbine 312 to rotate on both sides of the fixing member 315, thereby ensuring the stability of the first rotating turbine 311 and the second rotating turbine 312.

[0103] The driving assembly in this embodiment also includes a gas source, which includes a first storage device 51 provided in the hanging basket 11 and storing gas, and a gas guide pipe 52 connecting the first storage device 51 and the open flame nozzle 230. Further, the first storage device 51 is a gas cylinder, and a plurality of gas cylinders can be preset in the hanging basket 11 in this example, and all are connected to the gas guide pipe 52. The gas cylinder is provided with a combustible gas, which can be natural gas methane, hydrogen, etc., and the required combustible gas is selected according to the needs. Preferably, two gas cylinders are provided in the hanging basket 11.

[0104] The driving assembly in this embodiment also includes a power source, which includes a second storage device 61 for storing fuel in the hanging basket 11, and an oil pipe 62 connecting the second storage device 61 and the engine 32. Further, the second storage device 61 is a fuel bottle, and a plurality of fuel bottles can be preset in the hanging basket 11 in this example, and all of them are connected to the oil pipe 62. The fuel raw material in the fuel bottle is not limited to gasoline or kerosene.

[0105] In addition, it is further explained that the airflow pushing device 30 can also be a fan, and the fan can be directly installed on the lifting device 15. At this time, the power source is a power supply device, and the power supply device can be preset to supply power to the fan.

[0106] The control component in this embodiment also includes a single chip microcomputer and a signal transceiver. The single chip microcomputer is electrically connected to the signal transceiver and each control valve 41 respectively, and receives the control instructions transmitted by the ground monitoring terminal through the signal transceiver to control the on and off of each control valve 41. In some embodiments, a GPS positioning instrument is provided on the hot air balloon, and the GPS positioning instrument is connected to the single chip microcomputer to transmit the measured position information to the ground monitoring terminal in real time. In one embodiment, the control valve 41 adopts a solenoid valve, and a control valve 41 is provided at the airflow inlet of each airflow duct assembly 14, and a control valve 41 is provided at the top airflow outlet of the wind collecting hood 13. The air guide pipe 52 and the oil pipeline 62 are both provided with a control valve 41. It is further explained that the airflow duct assembly 14 includes a first airflow duct assembly 14 extending into the interior of the balloon, and a second airflow duct assembly 14 arranged on the surface of the balloon. In another embodiment, the control valve adopts a mechanical valve, and the control component also includes multiple servos, each of which is connected to a control valve on the airflow duct component 14, wherein the servos are respectively connected to the single-chip microcomputer and the control valve on the airflow duct component 14, and the corresponding servo receives a control signal sent by the single-chip microcomputer to control the corresponding control valve to open or close, thereby realizing the interruption of airflow in the corresponding airflow duct component 14.

[0107] To further explain, the control valve 41 in this embodiment also includes a switching valve of the combustion device 200 and the airflow propulsion device 30. For example, the switching valve in the combustion device 200 is connected to the igniter 240. The switching valve receives an electrical signal from the single-chip microcomputer to generate a spark, ignite the gas sprayed from the open flame nozzle 230, and generate a flame. At the same time, the servo controls the control valve 41 on the air duct 52 to control the degree of gas combustion, such as the combustion time, the amount of gas injection, etc.

[0108] Furthermore, the operation process of the hot air balloon capable of directional flight in this embodiment includes:

[0109] (1) When starting the preparation work, turn on the combustion device 200 and the airflow propulsion device 30, close the control valve 41 of the airflow duct assembly 14 on the balloon surface, open the control valve 41 of the air outlet of the airflow duct assembly 14 extending into the balloon, open the wind collecting cover 13, heat the hot air with the maximum firepower, and directly pass the hot air flow into the balloon, so that the balloon swells and has lift, and the balloon rises vertically. When the hot air balloon rises to a certain height, the combustion device 200 and the airflow propulsion device 30 can be turned off. If the hot air balloon needs to descend, open the airflow propulsion device 30 to deliver cold air into the balloon.

[0110] (2) When there is no directional function, close the control valves 41 at the air outlets of all airflow duct components 14.

[0111] (3) When directional flight is required, that is, when the hot air balloon needs to fly in a certain direction, the control valve 41 of the airflow duct assembly 14 opposite to the direction is controlled to open, and the combustion device 200 and the airflow propulsion device 30 are started at the same time, or only the airflow propulsion device 30 is started, and the reaction force generated by the hot air flow or the cold air flow output is used to propel the hot air balloon forward. In this embodiment, as many airflow duct assemblies 14 as possible can be arranged on the balloon surface, so that the flight direction can be controlled more accurately.

[0112] Further explanation, the balloon can also be improved in this embodiment. Fig.13As shown, the main body 400 of the balloon is symmetrically provided with additional balloons 410 on both sides, so that the main body 400 of the balloon is elliptical, so as to reduce the resistance during level flight. The additional balloon 410 in this embodiment is provided with an air outlet 420, and a gas exchange port 430 is provided between the main body 400 and the additional balloon 410, and the airflow in the main body 400 enters the additional balloon 410 from the gas exchange port 430. Further explanation, the balloon structure of the elliptical design has a cone configuration. For an aircraft with a flight speed lower than 0.8 Mach number (meeting the requirements of this design), the design of the cone shape makes the pressure difference resistance generated by the aircraft zero, and the resistance generated is mainly friction resistance, and the friction resistance is the resistance generated by the friction between the balloon material and the air, and will not change significantly. Thus, adding an additional balloon can reduce the flight resistance during level flight.

[0113] In addition, in this embodiment, based on the elliptical balloon design, the airflow duct assembly 14 is no longer required, and it is sufficient to install a control valve 41 at the air outlet to control the air outlet or close it.

[0114] In order to further protect the hot air balloon flight, a protective airbag is provided on the balloon in this embodiment to prevent the outlet from generating a reaction force that causes the balloon surface to deform. The protective airbag in this embodiment can be an annular airbag 18a or an attached airbag 18b.

[0115] Embodiment 2

[0116] The embodiment of the present application provides a reconfigurable aircraft for modification into a hot air balloon capable of directional flight in Embodiment 1. The reconfigurable aircraft obtains an aircraft with the desired function through the modification scheme in Embodiment 1. In this embodiment, the hot air balloon body, airflow propulsion device, combustion device, and wind collecting hood in Embodiment 1 can form a hot air balloon without open flames similar to the traditional design. After modification, such as laying airflow duct components and installing control valves, the control valves can be used for close or remote control to realize an unmanned or remotely piloted hot air balloon capable of directional flight. It is further explained that the reconfigurable aircraft in this embodiment can be used as a basic hot air balloon when there are no modification technologies in Embodiment 1. That is, when there are no technologies such as air outlets and pipelines in Embodiment 1, the aircraft in this embodiment has the basic functions of a basic hot air balloon that flies with the wind. After quickly installing the relevant equipment in Embodiment 1, it can achieve the functions of directional flight or lifting.

[0117] Embodiment 3

[0118] The embodiment of the present application provides a balloon-type aircraft, which adopts the hot air balloon structure capable of directional flight in embodiment 1. The balloon-type aircraft includes but is not limited to light gas balloon aircraft including hydrogen and helium proposed by the International Aeronautical Federation (FAI).

[0119] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0120] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A hot air balloon capable of directional flight, characterized in that: It comprises a body, a control component arranged on the body and at least one set of driving components; The body includes a balloon and a hanging basket connected to the balloon through a connecting device; a plurality of air outlets are preset inside and outside the balloon; The driving assembly is used to promote air flow so as to push hot air flow or cold air flow out from the corresponding air outlet; The control component includes a plurality of control valves, through which the corresponding air outlets are controlled to be on and off and the driving component is controlled to start and stop, so that the cold / hot air outputted from the air outlet inside the balloon controls the hot air balloon to rise and fall vertically, and the reverse thrust generated by the cold / hot airflow outputted from the air outlet outside the balloon controls the hot air balloon to descend vertically or fly parallelly in different directions; Wherein, the driving assembly includes an air collecting hood, an airflow duct assembly and a combustion system; the bottom of the air collecting hood is open and is suspended from the combustion system so that the airflow generated by the combustion system directly enters the air collecting hood; the airflow duct assembly is detachably mounted on the balloon, and includes an air inlet connected to the air collecting hood and a plurality of air outlets arranged inside and outside the balloon; the hot airflow or cold airflow output from the air collecting hood enters the air inlet, is transmitted along the airflow duct assembly, and flows out from the corresponding air outlet; The airflow duct assembly includes a first airflow duct and a second airflow duct; one end of the first airflow duct and the second airflow duct serves as an air inlet, both of which are connected to the wind collecting cover; the other end of the first airflow duct is arranged inside the balloon as an air outlet, used to output cold / hot air to the inside of the balloon, driving the hot air balloon to rise and fall vertically; the other ends of a plurality of the second airflow ducts are located within the margin range of the average resistance action point of the balloon, and are evenly arranged in different directions along the outer surface of the balloon as air outlets, using the reverse thrust generated by the output cold / hot airflow to drive the hot air balloon to fly parallel in different directions; The combustion system at least comprises an open flame nozzle and an igniter, wherein the igniter is used to ignite the fuel gas ejected from the open flame nozzle.

2. The hot air balloon capable of directional flight according to claim 1, characterized in that: The combustion system comprises a combustion device and an airflow driving device. The combustion device is provided with a combustion chamber that blocks the ejection of open flames. The flame of the gas combustion performs gas combustion in the combustion chamber and utilizes heat transfer to achieve air heating; the airflow pushing device is located below the combustion device and is used to promote the accelerated flow of hot air or cold air above it.

3. The hot air balloon capable of directional flight according to claim 1, characterized in that: The combustion system includes a first rotating turbine, a second rotating turbine, and a second combustion hood. The first rotating turbine is coaxially arranged below the second rotating turbine, and the blade size of the first rotating turbine is shorter than the blade size of the second rotating turbine; The wind collecting cover covers the second rotating turbine and is suspended above the first rotating turbine; The second combustion cover has an opening at the top and surrounds the first rotating turbine, and the open flame nozzle is arranged at the bottom thereof and is aimed at the blades of the first rotating turbine; In the second combustion hood, the flame ejected from the open flame nozzle drives the first rotating turbine to rotate, and drives the coaxially arranged second rotating turbine to rotate, so that the second rotating turbine extracts the hot air pushed by the first rotating turbine and the cold air outside the second rotating turbine, and after the hot air and the cold air are mixed, they are accelerated and pushed into the wind collecting hood; and the air flow temperature in the wind collecting hood is adjusted by adjusting the fire intensity of the open flame nozzle.

4. The hot air balloon capable of directional flight as claimed in claim 3, characterized in that: The combustion system further includes a driving motor, an output end of which is connected to the central axis of the first rotating turbine to further drive the first rotating turbine to rotate.

5. The hot air balloon capable of directional flight according to claim 1, characterized in that: The airflow duct assembly further includes a third airflow duct; one end of the third airflow duct serves as an air inlet and is connected to the air collecting hood; The other end of the third airflow duct is arranged at the top of the balloon as an air outlet, and the reverse thrust generated by the output cold / hot airflow is used to drive the hot air balloon to descend vertically.

6. The hot air balloon capable of directional flight according to claim 2 or 3, characterized in that: The driving assembly also includes a lifting device, which is fixed on the connecting device and is used to support and install the wind collecting hood and the combustion system.

7. The hot air balloon capable of directional flight according to claim 6, characterized in that: The lifting device is provided with a support member. The combustion device and the air collecting cover are fixedly installed by the support member so that the combustion device is suspended above the airflow driving device; or, The support member supports the air collecting hood and indirectly supports the connecting shaft between the first rotating turbine and the second rotating turbine, so that the air collecting hood is covered on the second rotating turbine and suspended above the first rotating turbine.

8. The hot air balloon capable of directional flight according to claim 2, characterized in that: The combustion device comprises a first combustion hood; the combustion chamber is arranged inside the first combustion hood; the open flame nozzle and the igniter are arranged below the combustion chamber, and the flame of the combustion of the gas ejected from the open flame nozzle is located in the combustion chamber.

9. The hot air balloon capable of directional flight according to claim 8, characterized in that: The first combustion cover includes a blocking surface and an exhaust surface, and a plurality of exhaust holes are arranged on the exhaust surface; the blocking surface is aligned with the open flame nozzle to block the open flame of the gas combustion from spraying out of the combustion chamber; and the heated air in the combustion chamber is discharged through the exhaust holes.

10. The hot air balloon capable of directional flight according to claim 8 or 9, characterized in that: The combustion device further comprises a plurality of heat conducting fins, which are arranged along the circumference of the first combustion cover. The heat of combustion is transferred through the heat conducting fins to heat the air passing through the heat conducting fins.

11. The hot air balloon capable of directional flight according to claim 1, characterized in that: The driving assembly also includes a gas source, which includes a first storage device arranged in the hanging basket and storing gas, and a gas guide pipe connecting the first storage device and the open flame nozzle.

12. The hot air balloon capable of directional flight according to claim 6, characterized in that: The airflow driving device includes rotating blades and an engine. The engine is fixed on the lifting device, and its output end is connected to the rotating blades to drive the rotating blades to rotate, thereby promoting the accelerated flow of cold air or hot air in the air collecting hood.

13. The hot air balloon capable of directional flight according to claim 12, characterized in that: The driving assembly also includes a power source, which includes a second storage device arranged in the hanging basket and storing fuel, and an oil pipeline connecting the second storage device and the engine.

14. The hot air balloon capable of directional flight according to claim 1, characterized in that: Additional balloons are symmetrically arranged on both sides of the main body of the balloon, so that the main body of the balloon is elliptical, thereby reducing the resistance encountered during level flight.

15. The hot air balloon capable of directional flight according to claim 1, characterized in that: The balloon is provided with a protective airbag, which prevents the air outlet from generating a reaction force that causes the balloon surface to deform.

16. A reconfigurable aircraft, characterized in that: Used to be converted into a hot air balloon capable of directional flight as described in any one of claims 1-15.

17. A balloon-type aircraft, using the hot air balloon structure capable of directionally flying as described in any one of claims 1 to 15.

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