Inflatable wing type variable wingspan unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to an inflatable wing type variable wingspan unmanned aerial vehicle. The unmanned aerial vehicle comprises a vehicle body, variable inflatable wings are arranged on the two sides of the vehicle body, the variable inflatable wings are connected with an inflation and deflation mechanism arranged in the vehicle body, each variable inflatable wing comprises a hollow fixed inflatable wing body and an extended inflatable wing body, and an inflatable part of each extended inflatable wing body is arranged outside a hollow cavity of the corresponding hollow fixed wing body; the uninflated part of the extended inflatable wing body is arranged in the hollow cavity, and the extended inflatable wing body is connected with the telescopic part of the extended driving mechanism. According to the inflatable wing type variable wingspan unmanned aerial vehicle, the variable inflatable wings are adopted, the wingspans of the whole wings are adjusted by lengthening the inflatable wing bodies, the unmanned aerial vehicle adapts to different flight states, and the unmanned aerial vehicle is of a relative folding structure, so that multi-stage adjustment is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, and particularly relates to an inflatable wing type variable wingspan unmanned aerial vehicle. BACKGROUND

[0002] With the development of low-altitude economy, unmanned aerial vehicles are widely applied in engineering patrol and monitoring. Due to the complex characteristics of actual engineering, the unmanned aerial vehicle needs to be capable of low-altitude flight and high-altitude flight. Meanwhile, the fixed wing is inconvenient to store, the existing folding wing structure is complex and heavy, which affects the endurance of the unmanned aerial vehicle. The existing technology uses an inflatable wing to solve the storage problem. However, the existing inflatable wing adopts a fixed structure and cannot adjust the wingspan, so the wingspan cannot be adjusted according to the actual flight needs or state. SUMMARY

[0003] The present application aims to provide an inflatable wing type variable wingspan unmanned aerial vehicle to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the present application provides an inflatable wing type variable wingspan unmanned aerial vehicle, which comprises a body, variable inflatable wings are arranged on both sides of the body, the variable inflatable wings are connected with a gas charging and discharging mechanism arranged in the body, the variable inflatable wings comprise a hollow fixed inflatable wing body and an extended inflatable wing body, the inflatable part of the extended inflatable wing body is arranged outside the hollow cavity of the hollow fixed wing body, the non-inflatable part of the extended inflatable wing body is arranged in the hollow cavity, and the extended inflatable wing body is connected with the telescopic part of an extension driving mechanism.

[0005] Preferably, the extended inflatable wing body comprises a support part, a plurality of profiled parts are arranged on the support part in parallel, and an air valve is arranged on the support part opposite to the plurality of profiled parts.

[0006] Preferably, the extension driving mechanism comprises an extension electric telescopic cylinder, the cylinder body of the extension electric telescopic cylinder is installed in the body, the end of the telescopic rod of the extension electric telescopic cylinder is provided with a fixing disc, a plurality of circumferentially distributed support rods are arranged on the fixing disc, and the fixing disc is fixedly connected with the end of the support part.

[0007] Preferably, two symmetrical telescopic support frames are arranged in the profiled part, the telescopic support frames are sequentially connected by a plurality of X articulated frames, the tail end X articulated frame is connected with the end of the profiled part, a fixed plate is arranged in the middle of the profiled part, the head end X articulated frame is slidingly arranged on the fixed plate, a driving telescopic electric push rod is arranged on the fixed plate, and the telescopic support frame is retracted and extended by controlling the extension and retraction of the driving telescopic electric push rod.

[0008] Preferably, the X articulated frame comprises two articulated articulated pipes, the articulated pipes are provided with telescopic pipes inserted at both ends, the telescopic pipes are provided with sealing sheets at one end and arranged in the articulated pipes, the telescopic pipes are provided with support rollers at the other end, and the articulated pipes are provided with air valves and exhaust valves.

[0009] Preferably, the circumferential side of the hinged pipe is communicated with symmetrically arranged support air bags, which are strip-shaped or sheet-shaped.

[0010] Preferably, the inflation and deflation mechanism comprises an air pump, the air outlet pipe of the air pump is provided with an air outlet branch pipe, the air outlet branch pipe is connected with three inflation pipes and an air outlet valve, the three inflation pipes are provided with inflation valves and are connected with the hollow fixed inflation wing body, the support part and the hinged pipe respectively, for realizing air supply of the hollow fixed inflation wing body and the support part, and extension of the telescopic pipe. The air inlet pipe of the air pump is provided with an air inlet branch pipe, the air inlet branch pipe is connected with two air outlet pipes and an air inlet valve, the two air outlet pipes are provided with air outlet valves and are connected with the hollow fixed inflation wing body and the support part respectively, for realizing air exhaust of the hollow fixed inflation wing body and the support part.

[0011] Preferably, the air outlet valve on the air outlet branch pipe is correspondingly provided with an energy recovery mechanism, the energy recovery mechanism comprises a wind turbine, and the wind turbine is connected with the charging circuit of the energy storage battery of the unmanned aerial vehicle.

[0012] Preferably, the body is provided with a binding mechanism, the binding mechanism comprises two binding belts which are symmetrically arranged in the body accommodating groove, hooks are symmetrically arranged on the side surface of the body, and the tail portions of the binding belts are arranged on the hooks.

[0013] Preferably, the hollow fixed inflation wing body is circumferentially distributed with a plurality of reinforcing air bags, which are strip-shaped or sheet-shaped.

[0014] Therefore, the variable wingspan unmanned aerial vehicle with the above-mentioned inflatable wing type has the beneficial effects that the variable inflatable wing is adopted, the wingspan of the whole wing is adjusted by lengthening the inflation wing body, different flight states are adapted, and multi-stage adjustment is realized relative to the folding structure.

[0015] The technical solutions of the present application will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic diagram of the inflatable wing type variable wingspan unmanned aerial vehicle of the present application; Figure 2 FIG. 2 is a structural schematic diagram of the variable inflatable wing of embodiment 1 of the present application; Figure 3 FIG. 3 is a structural schematic diagram of the telescopic support frame of the present application; Figure 4 FIG. 4 is a structural schematic diagram of the internal structure of the hinged pipe of the present application; Figure 5 FIG. 5 is a principle schematic diagram of the inflation and deflation mechanism of embodiment 2 of the present application; Figure 6 FIG. 6 is a principle schematic diagram of the inflation and deflation mechanism of embodiment 3 of the present application; Figure 7 This is a schematic diagram of the variable inflatable wing structure in its retracted state according to the present invention; Figure 8 This is a schematic diagram of the internal structure of the hollow fixed inflatable wing body in Embodiment 5 of the present invention.

[0017] Figure Labels 1. Airframe; 11. Receiving slot; 2. Hollow fixed inflatable wing; 21. Hollow cavity; 22. Reinforcing airbag; 3. Extended inflatable wing; 31. Support section; 32. Contouring section; 4. Telescopic support frame; 41. X-hinged frame; 411. Hinge tube; 412. Telescopic tube; 413. Sealing plate; 424. Support roller; 42. Fixing plate; 43. Drive telescopic electric actuator; 44. Support airbag; 5. Inflation / deflation mechanism; 51. Air pump; 52. Outlet branch pipe; 53. Inflation pipe; 54. Inlet branch pipe; 55. Exhaust pipe; 6. Wind turbine; 7. Extended electric telescopic cylinder; 71. Fixing plate; 72. Support rod; 8. Straps; 9. Hook. Detailed Implementation

[0018] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] Example 1 like Figure 1 As shown, an inflatable variable-span unmanned aerial vehicle (UAV) includes a fuselage 1 with variable-inflatable wings on both sides. The variable-inflatable wings are connected to an inflation / deflation mechanism 5 installed inside the fuselage 1. In this embodiment, the inflation / deflation mechanism 5 is controlled by an air pump 51 and corresponding valves to inflate and deflate the corresponding parts of the variable-inflatable wings. The specific arrangement adopts the existing layout, and the positions are adjusted according to the actual space constraints, which will not be described in detail here.

[0021] likeFigure 2 As shown, the variable inflatable wing includes a hollow fixed inflatable wing body 2 and an extended inflatable wing body 3, the extended inflatable wing body 3 includes a support part 31, a plurality of profiling parts 32 are arranged on the support part 31, and a plurality of air valves are arranged on the support part 31 opposite to the profiling parts 32.

[0022] The extension driving mechanism includes an extension electric telescopic cylinder 7, the cylinder body of the extension electric telescopic cylinder 7 is installed in the machine body 1, the telescopic rod end of the extension electric telescopic cylinder 7 is provided with a fixed disc 71 and is arranged in the hollow cavity 21, a plurality of circumferentially distributed support rods 72 are arranged on the fixed disc 71, one end of the support rod 72 is slidably arranged in the machine body 1, the support strength is improved, the fixed disc 71 is fixedly connected with the end of the support part 31 and is arranged in the hollow cavity 21.

[0023] According to the actual required wing span, the extension length of the extension electric telescopic cylinder 7 is controlled, the air valves of the corresponding profiling parts 32 are turned on, the inflation and deflation mechanism 5 is started to inflate, the hollow fixed wing body and the support part 31 of the extended inflatable wing body 3 are inflated, at the same time, the profiling parts 32 of the extended inflatable wing body 3, which are turned on the air valves, are inflated and arranged outside the hollow cavity 21 of the hollow fixed wing body, the profiling parts 32, which are not turned on the air valves, are arranged in the hollow cavity 21 (not inflated). The wing span adjustment of the variable inflatable wing is realized.

[0024] Embodiment 2 The difference between this embodiment and embodiment 1 is that two symmetrically arranged telescopic support frames 4 are arranged in the profiling part 32, so as to improve the support strength of the profiling part 32.

[0025] As Figures 3-4As shown, the telescopic support frame 4 is composed of a plurality of X articulated frames 41 connected in sequence, the tail end X articulated frame 41 is connected with the end of the profiling part 32, the middle of the profiling part 32 is provided with a fixed plate 42, the head end X articulated frame 41 is slidingly arranged on the fixed plate 42, the fixed plate 42 is provided with a driving telescopic electric push rod 43, and the telescopic support frame 4 is retracted and extended by controlling the extension and retraction of the driving telescopic electric push rod 43. The X articulated frame 41 includes two articulated articulated pipes 411, the two ends of the articulated pipe 411 are provided with a telescopic pipe 412, one end of the telescopic pipe 412 is provided with a sealing piece 413 and arranged in the articulated pipe 411, two sealing pieces 413 in the same articulated pipe 411 are provided with a return spring (not shown in the figure), the other end of the telescopic pipe 412 is provided with a supporting roller 424, and the articulated pipe 411 is provided with a vent valve and an exhaust valve (not shown in the figure). The vent valve is opened to inflate the articulated pipe 411, the telescopic pipe 412 extends outward under the action of air pressure, when the telescopic support frame 4 is retracted, the exhaust valve on the articulated pipe 411 is opened to release pressure, under the action of the return spring, the two ends of the telescopic pipe 412 return to the initial position, the circumference of the articulated pipe 411 is connected with symmetrically arranged supporting air bags 44, the supporting air bags 44 are strip-shaped, and can also be sheet-shaped to improve the supporting strength.

[0026] As shown in Figure 5 , the gas charging and discharging mechanism 5 includes a gas pump 51, the gas outlet pipe of the gas pump 51 is provided with a gas outlet branch pipe 52, the gas outlet branch pipe 52 is connected with three gas charging pipes 53 and an exhaust valve, the three gas charging pipes 53 are provided with gas charging valves and are respectively connected with the hollow fixed gas charging wing body 2, the supporting part 31 and the articulated pipe 411, for realizing gas supply of the hollow fixed gas charging wing body 2 and the supporting part 31, and extension of the telescopic pipe 412. The gas inlet pipe of the gas pump 51 is provided with a gas inlet branch pipe 54, the gas inlet branch pipe 54 is connected with two exhaust pipes 55 and a gas inlet valve, wherein the two exhaust pipes 55 are provided with exhaust valves and are respectively connected with the hollow fixed gas charging wing body 2 and the supporting part 31, for realizing exhaust of the hollow fixed gas charging wing body 2 and the supporting part 31. The articulated pipe 411 is inflated at the same time as the profiling part 32 is inflated, the top of the telescopic pipe 412 is pushed by air pressure, realizing support outside the profiling part 32. At the same time, passive exhaust is adopted during exhaust, improving exhaust efficiency and reducing gas storage amount.

[0027] Example 3 The difference between this embodiment and example 2 is that the exhaust valve on the gas outlet branch pipe 52 is correspondingly provided with an energy recovery mechanism, as shown in Figure 6 , the energy recovery mechanism includes a wind driven generator 6, the wind driven generator 6 is connected with the charging circuit of the energy storage battery of the unmanned aerial vehicle. When the variable gas charging wing is exhausted, the exhaust blows the wind driven generator 6, realizing energy recovery.

[0028] Example 4 The difference between the embodiment and the embodiment 1 is that, as shown in Figure 7 The body 1 is provided with a binding mechanism, which comprises two symmetrical bands 8 arranged in the accommodating groove 11 of the body 1, and hooks 9 arranged symmetrically on the side of the body 1, and the tail of the band 8 is arranged on the hook 9, so that the variable inflatable wing can be fixed on the body 1 after the exhaust is completed.

[0029] Embodiment 5 The difference between the embodiment and the embodiment 1 is that, as shown in Figure 8 The difference between the embodiment and the embodiment 1 is that, as shown in

[0030] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application rather than limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solutions of the present application can still be modified or replaced by the equivalent, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present application.

Claims

1. A variable span unmanned aerial vehicle of the airfoil type comprising a fuselage, characterized in that: The variable inflatable wings are arranged on both sides of the body and are connected with the inflation and deflation mechanism arranged in the body.

2. The inflatable wing variable span UAV of claim 1, wherein: The elongated inflatable wing body comprises a support part, and a plurality of profiled parts are arranged on the support part in parallel.

3. A variable span unmanned aerial vehicle of the inflatable airfoil type according to claim 2, characterized in that: The elongated drive mechanism comprises an elongated electric telescopic cylinder, the cylinder body of the elongated electric telescopic cylinder is installed in the body, the end of the telescopic rod of the elongated electric telescopic cylinder is provided with a fixed disc, a plurality of circumferentially distributed support rods are arranged on the fixed disc, and the fixed disc is fixedly connected with the end of the support part.

4. The inflatable wing variable span UAV of claim 3, wherein: The profiled part is provided with two symmetrically arranged telescopic support frames, the telescopic support frames are sequentially connected by a plurality of X articulated frames, the tail end X articulated frame is connected with the end of the profiled part, a fixed plate is arranged in the middle of the profiled part, the head end X articulated frame is slidingly arranged on the fixed plate, a driving telescopic electric push rod is arranged on the fixed plate, and the telescopic support frame is retracted and extended by controlling the extension and retraction of the driving telescopic electric push rod.

5. A variable span unmanned aerial vehicle of the inflatable airfoil type according to claim 4, characterized in that: The X articulated frame comprises two articulated articulated pipes, the telescopic pipes are arranged at both ends of the articulated pipes, one end of the telescopic pipe is provided with a sealing sheet and arranged in the articulated pipe, the other end of the telescopic pipe is provided with a support roller, and the articulated pipe is provided with an air inlet valve and an air outlet valve.

6. A variable span unmanned aerial vehicle of the inflatable airfoil type according to claim 5, characterized in that: The circumferential side of the articulated pipe is communicated with symmetrically arranged support air bags, and the support air bags are strip-shaped or sheet-shaped.

7. The inflatable wing variable span UAV of claim 6, wherein: The inflation and deflation mechanism comprises an air pump, the air outlet pipe of the air pump is provided with an air outlet branch pipe, the air outlet branch pipe is connected with three inflation pipes and an air outlet valve, the three inflation pipes are provided with inflation valves and are connected with the hollow fixed inflatable wing body, the support part and the articulated pipe respectively, and are used for supplying air to the hollow fixed inflatable wing body and the support part and extending the telescopic pipe; The air inlet pipe of the air pump is provided with an air inlet branch pipe, the air inlet branch pipe is connected with two air outlet pipes and an air inlet valve, the two air outlet pipes are provided with air outlet valves and are connected with the hollow fixed inflatable wing body and the support part respectively, and are used for discharging air from the hollow fixed inflatable wing body and the support part.

8. The inflatable wing variable span UAV of claim 7, wherein: The air outlet valve on the air outlet branch pipe is correspondingly provided with an energy recovery mechanism, and the energy recovery mechanism comprises a wind driven generator connected with the charging circuit of the energy storage battery of the unmanned aerial vehicle.

9. The inflatable wing variable span UAV of claim 8, wherein: The body is provided with a binding mechanism, the binding mechanism comprises two binding belts symmetrically arranged in the body accommodating groove, and hooks are symmetrically arranged on the side surface of the body.

10. The inflatable wing variable span UAV of claim 9, wherein: A plurality of reinforcing air bags are circumferentially distributed in the hollow fixed inflatable wing body, and the reinforcing air bags are strip-shaped or sheet-shaped.

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