Folding triangular wing with inflatable tension skin mixed structure and aircraft

Abstract

The invention is suitable for the technical field of aviation, and provides an inflatable tension skin mixed structure folding triangular wing and an aircraft. Each wing is composed of a folding type triangular wing supporting framework and an inflatable tensioning skin borne by the framework, and each supporting framework comprises a sliding rail on the fuselage, a wing leading edge beam hinged to the fuselage through a wing leading edge beam wing root hinge point, a wing trailing edge beam sliding hinge assembly in sliding connection with the sliding rail and a wing trailing edge beam hinged to the wing trailing edge beam sliding hinge assembly; the front and rear edge beam wing ends are connected through wing front and rear edge beam wing end hinge points, a skin wing root sliding connecting piece and a plurality of skin stabilizing ribs are arranged, and the inflatable tensioning skin comprises an inflatable supporting structural piece located on the front edge portion and a tensioning skin composed of an upper surface skin, a lower surface skin and skin spacing ribs. After the wing is unfolded, the inflatable supporting structural member is inflated and hardened and expands and tensions the skin into a wing shape, the folding triangular wing supporting framework and the inflatable tension skin jointly form a triangular fixed wing, the size of the wing is reduced by several times after the wing is folded, and storage and transportation are facilitated.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of aviation technology, and specifically provides an inflatable tensioned skin hybrid structure folding triangular wing, which can be used as a foldable / unfoldable fixed wing, and an aircraft comprising the wing. BACKGROUND

[0002] Wings are an important part of aircraft, and folding wings are increasingly used in the field of aircraft because they can save storage and transportation space. In the prior art, Chinese patents 201610228024.1, 202010730070.8, and 202421206312.3; US patent publication numbers US20170283035A1 and US20220024557A1 each provide a triangular folding wing, which includes a foldable / unfoldable wing support framework composed of a slide rail, a foldable wing multi-triangular frame structure, a skin support rib, and a skin connecting rib, and an upper and lower wing skin and a folding flap connected to the relevant components of the wing support framework. The wing support framework can be unfolded to form a triangular fixed wing under the action of a wing folding / unfolding device, providing lift for the aircraft, or folded towards the fuselage for storage and transportation.

[0003] However, the folding wing provided by the prior art has the following disadvantages: the wing support framework structure is complex, with many support rods, and is heavy; the characteristics of the foldable / unfoldable wing support framework make the upper and lower surface skins of the wing not associated with each other, and they cannot be connected to form a whole, which requires the joint action of the wing support framework, the skin support rib, and the skin connecting rib to maintain stability, making the structural association between the wing skin and the wing support framework complex, and making it difficult to tension and tighten the wing skin; in addition, the characteristics of this wing structure make it impossible to install a fixed flap on the trailing edge of the wing, and the folding flap structure is complex, difficult to operate, and lacks stability, affecting the aerodynamic adjustment ability of the wing. SUMMARY

[0004] The present application aims to provide an inflatable tensioned skin hybrid structure folding triangular wing, which aims to solve the problems existing in the prior art and provide lift for aircraft in need.

[0005] The present application is achieved in a kind of inflatable tensioned skin hybrid structure folding triangular wing, including folding triangular wing support framework and its carrying inflatable tensioned skin assembly, the folding triangular wing support framework is made of rigid material, including slide rail, wing root hinge point of wing leading edge beam, wing trailing edge beam sliding hinge assembly, wing root hinge point of wing trailing edge beam, wing leading edge beam, wing trailing edge beam and wing leading edge beam wing end hinge point, the inflatable tensioned skin assembly includes multiple inflatable support structure and tensioned skin, the inflatable support structure is arranged in tensioned skin inside close to the position of wing leading edge beam, and is connected with the tensioned skin.

[0006] Further, the tensioned skin is made of flexible material, including wing upper surface skin and wing lower surface skin, the wing upper surface skin and wing lower surface skin are connected by multiple longitudinal skin interval ribs, and the inside of leading edge is connected with inflatable support structure.

[0007] Further, the inflatable support structure is closed-end cylinder or conical inflatable pipe, flexible and foldable when not inflated, and forms pressure-hardened support body after inflation.

[0008] Further, the slide rail is fixedly connected with the fuselage, the wing root of the wing leading edge beam is hinged with the fuselage through the wing leading edge beam wing root hinge point, the wing trailing edge beam sliding hinge assembly is slidingly connected with the slide rail and can move along the slide rail, the wing root of the wing trailing edge beam is hinged with the wing trailing edge beam sliding hinge assembly through the wing trailing edge beam wing root hinge point, and the wing leading edge beam is hinged with the wing end of the wing trailing edge beam through the wing leading edge beam wing end hinge point.

[0009] Further, the folding triangular wing support framework further includes multiple skin wing root sliding connectors, multiple skin stabilizing ribs, skin stabilizing rib leading edge beam hinge point, skin stabilizing rib trailing edge beam rotating sleeve connection assembly and skin stabilizing rib sliding connector, wherein the front end of the multiple skin stabilizing ribs is hinged to the lower surface of the wing leading edge beam through the skin stabilizing rib leading edge beam hinge point, the rear end is slidingly connected with the skin stabilizing rib trailing edge beam rotating sleeve connection assembly, and is positionally locked when the wing is fully unfolded, the multiple skin wing root sliding connectors are slidingly connected with the slide rail for connecting and stabilizing the skin of the wing root part, and the skin is slidingly connected with the skin stabilizing rib through the skin stabilizing rib sliding connector.

[0010] Further, the inflatable support structure is provided with a differential pressure detection control device.

[0011] Further, the wing lower surface skin is provided with air inlet and outlet holes for balancing the air pressure balance inside and outside the skin during folding / unfolding.

[0012] Further, the wing is provided with a flow control valve and a charging / discharging device for charging and discharging the inflatable support structure.

[0013] Further, the wing leading edge beam is provided with a deflector, and the wing trailing edge beam is provided with a flap auxiliary wing.

[0014] Further, the inflatable tensioned skin assembly is connected with the wing leading edge beam, the wing trailing edge beam, the wing trailing edge beam sliding hinge assembly and the skin wing root sliding connector around; the middle part is connected with the skin stabilizing rib sliding connector through the skin stabilizing rib sliding connector, so that the skin is guided during folding / unfolding and is stably supported after unfolding.

[0015] Further, the wing is also provided with a wing unfolding / folding device, under the action of the wing unfolding / folding device, the wing trailing edge beam sliding hinge assembly moves along the sliding rail and drives the unfolding of the wing trailing edge beam, pushes the unfolding of the folding triangular wing support framework, and drives the unfolding of the inflatable tensioned skin connected with the wing support framework, forming a triangular wing surface.

[0016] Specifically, after the wing is completely unfolded and locked, the charging / discharging device charges the inflatable support structure to the design pressure, the internal pressure of the inflatable support structure after being charged is increased, the cylinder or cone is changed from a weak state to a hardening state, forming a support structure, the tensioned skin is supported from the inside, the upper and lower surface skins are unfolded and tensioned under the constraint of the folding triangular wing support framework, thereby being tightened, shaped and hardened to form a wing type, finally, the folding triangular wing support framework and the inflatable tensioned skin supported thereby jointly form an inflatable tensioned skin hybrid structure folding triangular wing, which can provide lift for an aircraft. Another aspect of the present application also provides an aircraft comprising the inflatable tensioned skin hybrid structure folding triangular wing, wherein the aircraft comprises a hand-throwing unmanned aerial vehicle, a catapult-launched unmanned aerial vehicle, a storage and transportation integrated unmanned aerial vehicle, an air-drop unmanned aerial vehicle, a submarine-launched unmanned aerial vehicle, a flying car, a tail-seat vertical take-off and landing aircraft or a personal aircraft.

[0017] Compared with the prior art, the present application has the advantages of reduced number of wing support frame members, simple structure and reduced weight; the tensioned skin is internally supported and tensioned by the inflatable support structure, and the tensioned skin is more easily shaped under the constraint of the folded triangular wing support frame; the cylindrical and conical inflatable support structure can bear higher inflation pressure and has stronger support force; the inflatable volume is concentrated in the inflatable support structure, and the required inflation amount and air supplement amount are smaller, so that the inflation / exhaust device can be miniaturized; the wing trailing edge beam can be arranged with a flap aileron, and the aerodynamic adjustment capacity is stronger; after the wing is unfolded, the inflatable support structure is inflated and hardened, and the skin is supported and tensioned into an airfoil shape, and the folded triangular wing support frame and the inflatable tensioned skin jointly form a triangular fixed-wing wing; the wing volume is reduced by several times after folding, facilitating storage and transportation, and being suitable for multiple types of aircraft platforms. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a planar perspective view of the unfolded folded triangular wing with the inflatable tensioned skin hybrid structure provided by the present application; Figure 2 is a planar perspective view of the folded folded triangular wing with the inflatable tensioned skin hybrid structure provided by the present application (the left side does not show the skin, and the right side shows the skin); Figure 3 is a top view of the structure shown in the present application; Figure 1 Figure 4 is a planar view of the unfolded folded triangular wing with the inflatable tensioned skin hybrid structure of the present application; Figure 5 is a rear view of the present application; Figure 4 Figure 6 is a cross-sectional view along line A-A in the present application; Figure 1 is a cross-sectional view along line B-B in the present application; Figure 7 Figure 1 is an enlarged view of part C in the present application; Figure 8 is a planar view of the unfolded wing of the unmanned aerial vehicle provided with the inflatable tensioned skin hybrid structure folded triangular wing of the present application; Figure 7 Figure 9 is a planar view of the folded wing of the unmanned aerial vehicle provided with the inflatable tensioned skin hybrid structure folded triangular wing of the present application. Figure 10 is a top view of the present application; Figure 9 Figure 11 is a planar view of the folded wing of the unmanned aerial vehicle provided with the inflatable tensioned skin hybrid structure folded triangular wing of the present application.

[0019] Reference signs: ​​​​​F: fuselage; 1: slide rail; 2: wing leading edge beam wing root hinge point; 3: wing trailing edge beam sliding hinge assembly; 4: wing trailing edge beam wing root hinge point; 5: wing leading edge beam; 6: wing trailing edge beam; 7: wing leading and trailing edge beam wing end hinge point; 8: skin wing root sliding connector; 9: skin stabilizing rib; 10: skin stabilizing rib leading edge beam hinge point; 11: skin stabilizing rib trailing edge beam rotating sleeve connection assembly; 12: inflatable support structure; 13: inflatable support structure differential pressure detection control device; 14: tensioned skin; 15: flow control valve; 16: inflation / deflation device; 17: wing upper surface skin; 18: wing lower surface skin; 19: skin spacing rib; 20: skin stabilizing rib sliding connector; 21: skin lower surface air inlet and outlet hole; 22: wing unfolding / folding device. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are merely used to explain the present application and do not limit the present application.

[0021] The embodiment of the present application provides a kind of inflatable tensioned skin hybrid structure folding triangular wing, including folding triangular wing support framework and its carrying inflatable tensioned skin assembly, the folding triangular wing support framework is made of rigid material, including slide rail, wing leading edge beam wing root hinge point, wing trailing edge beam sliding hinge assembly, wing trailing edge beam wing root hinge point, wing leading edge beam, wing trailing edge beam and wing leading and trailing edge beam wing end hinge point;The inflatable tensioned skin assembly is made of flexible airtight material, including multiple inflatable support structures and tensioned skin, the inflatable support structure is arranged in the tensioned skin inside close to wing leading edge beam and is connected with the tensioned skin.

[0022] Specifically, the tensioned skin includes wing upper surface skin and wing lower surface skin, which are connected by multiple longitudinal skin spacing ribs between the upper and lower surface skins, and the inside of the leading edge is connected with the inflatable support structure.

[0023] Specifically, the inflatable support structure can be an end-closed cylindrical or conical inflatable tube, which is flexible and foldable when not inflated, and forms a pressure-hardened support body after inflation. The multiple inflatable support structures are symmetrically distributed on the wings on both sides of the fuselage.

[0024] Specifically, the slide rail is fixedly connected to the fuselage, the wing root of the wing leading edge spars is hinged to the fuselage through the wing root hinge point of the wing leading edge spars, the wing trailing edge spars sliding hinge assembly is slidably connected to the slide rail and can move along the slide rail, the wing root of the wing trailing edge spars is hinged to the wing trailing edge spars sliding hinge assembly through the wing root hinge point of the wing trailing edge spars, and the wing leading edge spars are hinged to the wing tip of the wing trailing edge spars through the wing tip hinge points of the wing leading and trailing edge spars.

[0025] Furthermore, the folding triangular wing support frame also includes multiple skin root sliding connectors, multiple skin stabilizing ribs, a leading edge beam hinge point for the skin stabilizing ribs, a rotating sleeve connecting assembly for the trailing edge beam of the skin stabilizing ribs, and skin stabilizing rib sliding connectors. The front ends of the multiple skin stabilizing ribs are hinged to the lower surface of the wing's leading edge beam via the leading edge beam hinge point, and the rear ends are slidably connected to the rotating sleeve connecting assembly for the trailing edge beam of the skin stabilizing ribs, and are locked in place when the wing is fully deployed. The multiple skin root sliding connectors are slidably connected to a slide rail to connect and stabilize the skin at the wing root. The skin and the skin stabilizing ribs are slidably connected via the skin stabilizing rib sliding connectors.

[0026] This application also provides an aircraft comprising the above-described inflatable tensile skin hybrid structure folding triangular wing.

[0027] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: like Figures 1-8 As shown, the inflatable tensile skin hybrid structure folding triangular wing of this application includes a folding triangular wing support frame and an inflatable tensile skin assembly supported thereon. The folding triangular wing support frame includes: a slide rail 1 fixedly mounted on the fuselage F; a wing leading edge spars root hinge point 2; a wing trailing edge spars sliding hinge assembly 3; a wing trailing edge spars root hinge point 4; a wing leading edge spars 5 with guide vanes; a wing trailing edge spars 6 with flaps; wing leading and trailing edge spars wingtip hinge points 7; and a skin root sliding connector 8. The wing leading-edge spars 5 are located on both sides of the fuselage, and their roots are hinged to the fuselage F via the wing root hinge point 2. The wing trailing-edge spars sliding hinge assembly 3 is slidably connected to the slide rail 1, and the wing root of the wing trailing-edge spars 6 is hinged to the wing root hinge assembly 3 via the wing root hinge point 4. The wing tips of the wing leading-edge spars 5 and trailing-edge spars 6 on each side are hinged via hinge point 7, forming a foldable / deployable triangular wing support frame. The foldable triangular wing support frame is a complete rigid wing support frame network structure. Under the force of the wing folding / deployment device 22, the wing support frame can move along the slide rail 1 around the wing root hinge point 2, unfolding outwards or folding inwards. Furthermore, such asFigure 1 , Figure 4 and Figure 6 As shown, the wing trailing edge spars sliding hinge assembly 3 includes a slider and a connecting rib that are slidably connected to the slide rail 1, so as to realize the structural integration and synchronous sliding of the wing root hinge points 4 of the left and right wing trailing edge spars.

[0028] Furthermore, to stabilize the skin root region, the wing root of the inflatable tensioned skin hybrid structure folding triangular wing is provided with multiple skin root sliding connectors 8. These sliding connectors 8 are slidably connected to the slide rail 1 and connected to the tensioned skin to limit the wing root displacement of the skin during folding / unfolding and under load.

[0029] Furthermore, the folding triangular wing support frame also includes multiple substantially parallel skin stabilizing ribs 9. The front ends of the skin stabilizing ribs 9 are hinged to the lower surface of the wing leading edge spars 5 via the skin stabilizing rib leading edge spars hinge point 10, and the rear ends are slidably connected to a rotating sleeve connecting assembly 11 mounted on the lower surface of the wing trailing edge spars 6. When the wing is fully extended to its maximum wingspan, the rotating sleeve connecting assembly 11 limits and locks the skin stabilizing ribs 9, forming a stable support network for the skin. It also guides the movement of the skin during folding / unfolding. The limiting length of each skin stabilizing rib 9 is the length of the folding triangular wing support frame when fully extended to its maximum wingspan, such as... Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown.

[0030] like Figure 1 , Figure 6 and Figure 7 As shown, the inflatable tensile skin assembly is made of flexible, airtight material and includes an inflatable support structure 12 and a tensile skin 14. The tensile skin 14 consists of an upper wing skin 17 and a lower wing skin 18, which are connected as a single unit by multiple skin spacer ribs 19. The inflatable support structure 12 is composed of multiple cylinders and cones of different specifications and lengths with closed ends, and is located inside the tensile skin 14 near the leading edge sparsity 5 of the wing, and is connected to the tensile skin 14. Figure 1 As shown. These inflatable support structures are flexible, foldable when not inflated, and become pressure-bearing structures in a bulging state after inflation, generating a stretching force on the upper and lower surface skins and achieving tension and shaping.

[0031] Furthermore, the inflatable support structure 12 is also equipped with a differential pressure detection and control device 13, used to detect the internal and external pressure difference of the inflatable support structure during flight and to release pressure and regulate when overpressure occurs. An inflation / deflation device 16 can also be installed in the triangular wing, which is connected to the inflatable support structure 12 via a flow control valve 15. To balance the internal and external pressure difference of the tensioned skin 14 during folding / unfolding, the lower surface skin 18 has inlet and outlet ports 21.

[0032] like Figures 1-8 As shown, the periphery of the inflatable tensioned skin assembly is connected to the wing leading edge spars 5, the wing trailing edge spars 6, the wing trailing edge spars sliding hinge assembly 3, and the skin root sliding connector 8, etc. Figure 2 The skin is not shown on the left side, but is shown on the right side; the middle part is slidably connected to the skin stabilizing rib 9 through the skin stabilizing rib sliding connector 20, so that it is controlled to follow the movement during folding / unfolding, and is stably supported after the wing is unfolded, thus limiting excessive deformation of the middle part of the inflatable tensioned skin assembly during the flight of the aircraft.

[0033] The folding / deploying process of this inflatable tensile skin hybrid structure folding triangular wing is reversible. Specifically, the wing's folding to deployment process is as follows: Under the force of the wing deployment / folding device 22, the wing trailing edge spar sliding hinge assembly 3 drives the wing trailing edge spar 6, which is hinged to it, to move downwards along the slide rail 1, pushing the folding triangular wing support frame to unfold outwards. At the same time, the inflatable tensile skin assembly connected to it unfolds accordingly, thereby supporting the frame to form a triangular wing surface with maximum wingspan and locking it in place. Subsequently, the inflation / deflation device 16 inflates the wing through the flow control valve 15 and the air inlet. The supporting structure 12 is inflated to the set pressure. After inflation, the internal pressure of the inflated supporting structure 12 increases, and its cylindrical or conical shape changes from a soft state to a bulging and hardened state, forming a supporting structure. This causes the tensioned skin 14 to be stretched open from the inside. The upper and lower surface skins are stretched under the constraint of the folding triangular wing support frame, thus tightening, shaping, and surface hardening to form an airfoil. Finally, the folding triangular wing support frame and the inflatable tensioned skin assembly it supports together constitute the inflatable tensioned skin hybrid structure folding triangular wing, which becomes a fixed wing that can provide lift.

[0034] In another embodiment, the upper surface skin 17, the lower surface skin 18, and the wing leading edge spars 5 are fixedly connected. At the wing trailing edge, the upper surface skin 17 and the lower surface skin 18 are connected as a whole around the wing trailing edge spars 6 and are slidably connected to the wing trailing edge spars 6. As the inflatable support structure 12 is inflated, the upper and lower surface skins can slide around the wing trailing edge spars 6, becoming a whole that is stretched and tightened. Figure 6 , Figure 7 , Figure 8As shown, when the upper and lower skin surfaces are slidably connected around the wing trailing edge spar 6, some parts intersect with the connecting parts on the wing trailing edge spar 6. This can be resolved by leaving a slot in the skin at the intersection.

[0035] Furthermore, the process of the wing from deployment to folding is as follows: First, the gas in the inflatable support structure 12 is discharged to relax it, thereby relaxing the inflatable tensioned skin. Then, under the force of the wing folding / deploying device 22, the locking is released and the wing trailing edge spar sliding hinge assembly 3 is driven to move the wing root of the wing trailing edge spar 6, which is hinged to it, upward along the slide rail 1, so that the support frame retracts towards the fuselage, and drives the skin stabilizing rib 9 and the skin to fold and retract. Finally, the wing folds and retracts into the fuselage, completing the folding process.

[0036] Furthermore, such as Figure 2 As shown, as the wing support frame folds, the skin stabilizing rib 9 is unlocked from the rotating sleeve connection assembly 11 and slides out of the sleeve of the rotating sleeve connection assembly 11, retracting towards the fuselage.

[0037] In other embodiments, the number of skin stabilizing ribs 9 is variable.

[0038] In other embodiments, the slide rail 1 may have different types or numbers, including a method of using separate slide rails for each of the left and right wings.

[0039] The folding / deploying of the inflatable tensioned skin hybrid structure folding triangular wing of this application can also be achieved in other ways, such as various forms of mechanical deployment, elastic deployment, aerodynamic deployment, drag chute deployment, and for small aircraft, manual deployment / folding, etc. In one embodiment, the left and right wings can also be folded / deployed independently.

[0040] The inflatable support structure 12 can be inflated in various ways, such as by high-pressure gas cylinders, various types of filling / exhausting mechanical devices, chemical reaction gas filling, or a combination of both methods.

[0041] In another embodiment, the composition and quantity of the inflatable support structure 12 are variable, and the cross-section of the inflatable support structure 12 can be a non-circular cross-section.

[0042] In another embodiment, inflatable tensioned skin assemblies are respectively provided on the left and right wings.

[0043] In another embodiment, the differential pressure detection and control device 13 and the exhaust valve are integrated into one unit.

[0044] Example 2: like Figures 9-11As shown, this embodiment provides an aircraft, such as a drone, with at least one pair of inflatable tensile skin hybrid structure folding triangular wings as described in Embodiment 1 mounted on its fuselage F. The aircraft obtains fixed-wing lift after the wings are deployed and inflated; the folded wings significantly reduce the wingspan and space occupied, facilitating applications such as carrying, storage, or launch / airdrop.

[0045] It should be understood that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A folding triangular wing with a hybrid inflatable tensile skin structure, comprising a folding triangular wing support frame and an inflatable tensile skin assembly supported thereon, wherein the folding triangular wing support frame is made of rigid material and includes a slide rail (1), a wing leading edge spars root hinge point (2), a wing trailing edge spars sliding hinge assembly (3), a wing trailing edge spars root hinge point (4), a wing leading edge spars (5), a wing trailing edge spars (6), and wingtip hinge points (7) for the leading and trailing edge spars, characterized in that, The inflatable tensile skin assembly includes multiple inflatable support structures (12) and tensile skin (14). The inflatable support structures (12) are located inside the tensile skin (14) near the leading edge spar (5) of the wing and are connected to the tensile skin (14).

2. The inflatable tensile skin hybrid structure folding triangular wing according to claim 1, characterized in that, The tensioned skin (14) is made of flexible material and includes an upper wing skin (17) and a lower wing skin (18). The upper wing skin (17) and the lower wing skin (18) are connected by multiple longitudinal skin spacer ribs (19), and the inner edge of the upper edge is connected to the inflatable support structure (12).

3. The inflatable tensile skin hybrid structure folding triangular wing according to claim 1, characterized in that, The inflatable support structure (12) is a cylindrical or conical inflatable tube with closed ends. When not inflated, it is flexible and foldable. When inflated, it is formed into a pressure-bearing and hardened support structure.

4. The inflatable tensile skin hybrid structure folding triangular wing according to claim 1, characterized in that, The slide rail (1) is fixedly connected to the fuselage. The wing root of the wing leading edge spar (5) is hinged to the fuselage through the wing root hinge point (2) of the wing leading edge spar. The wing trailing edge spar sliding hinge assembly (3) is slidably connected to the slide rail (1) and can move along the slide rail (1). The wing root of the wing trailing edge spar (6) is hinged to the wing trailing edge spar sliding hinge assembly (3) through the wing root hinge point (4) of the wing trailing edge spar. The wing leading edge spar (5) is hinged to the wing tip of the wing trailing edge spar (6) through the wing tip hinge point (7) of the wing leading and trailing edge spar.

5. The inflatable tensile skin hybrid structure folding triangular wing according to claim 1, characterized in that, The folding triangular wing support frame also includes multiple skin root sliding connectors (8), multiple skin stabilizing ribs (9), skin stabilizing rib leading edge beam hinge points (10), skin stabilizing rib trailing edge beam rotating sleeve connecting assembly (11), and skin stabilizing rib sliding connectors (20). The front ends of the multiple skin stabilizing ribs (9) are hinged to the lower surface of the wing leading edge beam (5) through the skin stabilizing rib leading edge beam hinge points (10), and the rear ends are slidably connected to the skin stabilizing rib trailing edge beam rotating sleeve connecting assembly (11), and are locked in place when the wing is fully deployed. The multiple skin root sliding connectors (8) are slidably connected to the slide rail (1) to connect and stabilize the tensioned skin (14) at the wing root. The tensioned skin (14) and the skin stabilizing ribs (9) are slidably connected through the skin stabilizing rib sliding connectors (20).

6. The inflatable tensile skin hybrid structure folding triangular wing according to claim 1, characterized in that, The inflatable support structure (12) is equipped with a differential pressure detection and control device (13).

7. The inflatable tensile skin hybrid structure folding triangular wing according to claim 2, characterized in that, The lower surface skin (18) of the wing is provided with air inlet and outlet vents (21) to balance the air pressure inside and outside the skin when folding / unfolding.

8. The inflatable tensile skin hybrid structure folding triangular wing according to claim 5, characterized in that, The inflatable tensioned skin (14) is connected around the wing leading edge spar (5), wing trailing edge spar (6), wing trailing edge spar sliding hinge assembly (3), and skin root sliding connector (8); the middle part is slidably connected to the skin stabilizing rib (9) through the skin stabilizing rib sliding connector (20), so that the skin is guided during folding / unfolding and is stably supported after unfolding.

9. The inflatable tensile skin hybrid structure folding triangular wing according to any one of claims 1-8, characterized in that, It also includes a wing deployment / folding device (22). Under the action of the wing deployment / folding device (22), the wing trailing edge beam sliding hinge assembly (3) moves along the slide rail (1) and drives the wing trailing edge beam (6) to unfold, pushing the folding triangular wing support frame to unfold, and at the same time driving the inflatable tensioned skin (14) connected to the wing support frame to unfold accordingly, forming a triangular wing surface.

10. An aircraft comprising an inflatable tensile skin hybrid structure folding triangular wing according to any one of claims 1-9, the aircraft comprising a hand-launched UAV, a catapult-launched UAV, a storage, transport and launch integrated UAV, an airdropped UAV, a submarine-launched UAV, a flying car, a tail-seat vertical takeoff and landing aircraft, or a personal aircraft.

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