Fixed wing folding type wing and aircraft

Abstract

The utility model relates to the technical field of folding wings, and particularly provides a fixed wing folding wing and an aircraft comprising the wing. The fixed wing folding type wing comprises a triangular folding type wing main wing, an extension section fixed wing and an aileron, wherein the triangular folding type wing main wing comprises a multi-triangular wing supporting framework, a skin supporting rib and a skin connecting rib; wherein the multi-triangular wing supporting framework comprises a wing leading edge beam and a wing trailing edge beam, and the extension section fixed wing and the aileron are positioned on the extension section of the leading edge beam or the trailing edge beam. The wing has the advantages of being complete in function, simplified in structure, stable in performance, safe and reliable, a fixed wing is formed after the wing is unfolded, lift force can be provided for an aircraft, the size and the area of the wing are reduced by multiple times after the wing is folded, the storage size is greatly reduced, and the wing can be applied to various small and light aircrafts.

Description

Technical Field

[0001] The utility model relates to the technical field of foldable wings, in particular to a fixed-wing foldable wing capable of being folded and unfolded and an aircraft comprising the wing. Background Art

[0002] The wing is an important component of an aircraft. The main function of the wing is to generate lift to support the aircraft flying in the air.

[0003] In the current technology, for example: 201610228024.1 (folding wing), 202010730070.8 (folding wing with folding trailing edge flaps), US20170283035A1 (foldable wing and rotorcraft and glider using the wing), US 20220024557A1 (folding wing with folding trailing edge flaps), 201620324195.X (folding wing), 201921875322.5 (folding wing with straight folding extension wing), 202020362556.6 (airbag inflatable skin of folding wing) and other patents provide a type of foldable fixed-wing wing with a wing structure that can be folded and unfolded, and the wing includes: a flexible surface skin (airbag inflatable skin), a rigid The folding multiple triangular truss wing support frame composed of materials, skin support ribs, skin support rib tail tip sliders, folding ailerons, folding flaps and other components. The folding multiple triangular truss wing support frame of this wing can be folded or unfolded according to usage requirements, thereby driving the associated skin support ribs, tail tip sliders, surface skin, folding ailerons, folding flaps to move together, realizing the folding or unfolding of the entire wing structure, forming a fixed-wing wing, and providing lift for the aircraft.

[0004] However, the existing fixed-wing wings with foldable and unfoldable wing structures have the following problems and defects:

[0005] 1. The folding aileron has a complex structure, many moving parts, low operating stability and low reliability;

[0006] 2. The tail tip slider of the skin support rib can change the length of the skin support rib, so as to make the upper and lower surfaces of the wing connected thereto flexible, adapt to the tensile deformation of the skin support rib during the folding and unfolding of the wing, and support the surface skin. However, the existing tail tip slider of the skin support rib destroys the integrity of the skin support rib structure, and the structure is complex and has many moving parts.

[0007] 3. It also includes issues such as the wing structure that need to be optimized and improved. Utility Model Content

[0008] The utility model aims to improve the problems and defects of existing folding wings, so as to provide a folding wing including a wing support frame, a flexible wing surface skin and other wing structures which can be folded / unfolded, and has complete functions, a simplified structure, stable performance, and is safe and reliable. When the wing is unfolded, it forms a fixed-wing wing, which can provide lift for the aircraft. After folding, the volume and area of ​​the wing are reduced several times, which greatly reduces the storage volume. The wing can be applied to various small and light aircraft.

[0009] The utility model provides a fixed-wing folding wing, which comprises a triangular folding wing main wing and an extended section fixed wing and aileron, wherein the triangular folding wing main wing comprises multiple triangular wing support frames, skin support ribs and skin connecting ribs; wherein the multiple triangular wing support frames comprise a wing leading edge beam and a wing trailing edge beam, and the extended section fixed wing and aileron are located at the leading edge beam or the trailing edge beam extension section.

[0010] Furthermore, the skin connecting ribs are made of a rigid material and have a sheet structure. There are multiple skin connecting ribs, each of which is arranged between two adjacent skin supporting ribs, and the length of the skin connecting ribs is shorter than that of the skin supporting ribs.

[0011] Furthermore, when the extended section fixed wing and the aileron are located in the extended section of the trailing edge beam, the extended section fixed wing and the trailing edge beam form an obtuse angle.

[0012] Furthermore, the fixed-wing folding wing also includes an airbag-inflated skin, and each airbag of the airbag-inflated skin is placed on the upper surface of the skin support rib.

[0013] Furthermore, each group of skin support ribs is composed of two upper and lower rods, the rear ends of the two rods are connected together, the front ends of the two rods are hinged to the wing leading edge beam, and a cavity is formed between the two rods.

[0014] Furthermore, a wing trailing edge folding flap is provided on the skin connecting rib.

[0015] Furthermore, the fixed-wing folding wing also includes a slide rail fixedly mounted on the fuselage, a fixed hinge point of the leading edge beam, an inner crossbeam and a longitudinal beam of the multiple triangular trusses, an airbag inflatable skin filling / exhausting device and an internal and external pressure difference detection and adjustment device.

[0016] An embodiment of the utility model further provides an aircraft, comprising the fixed-wing folding wing as described above.

[0017] Furthermore, the aircraft is: a single-person portable aircraft, a portable vehicle, an integrated storage, transportation and launch aircraft, an airdrop type aircraft or a submarine-launched aircraft.

[0018] The utility model has the following beneficial effects:

[0019] 1. It overcomes a series of problems of existing products such as complex structure and poor stability. The wing folding / unfolding performance of this application is more perfect, the wing structure is more optimized and simple, the performance is more stable and reliable, and the wing adjustment function is complete and feasible.

[0020] 2. The fixed-wing wing with a triangular folding main wing plus an extended fixed wing and aileron has a large wingspan, a large wing surface area, and a large load-bearing capacity when unfolded; after folding, the volume and area of ​​the wing are reduced several times, which greatly improves the convenience of storage and transportation, and can achieve tasks that existing fixed-wing wings cannot accomplish.

[0021] 3. The folding wing described in the utility model is a fixed-wing wing, which is a universal component of aircraft and is suitable for various types of manned and unmanned aircraft flying at medium and low speeds. It can produce a variety of new aircraft and open up a new field of folding-wing aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below by means of the accompanying drawings.

[0023] Figure 1 A schematic diagram of a folding triangular wing provided by the utility model after the folding wing is unfolded, including a main wing plus a leading edge beam extension section, a fixed wing and ailerons (the left half of which is in perspective);

[0024] Figure 2 A schematic diagram of a folding triangular wing provided by the utility model, including a main wing plus a leading edge beam extension section, a fixed wing and ailerons, after the folding of the folding wing (the left half of which is in perspective);

[0025] Figure 3 for Figure 1 Sectional view along AA;

[0026] Figure 4 for Figure 1 Sectional view along BB;

[0027] Figure 5 for Figure 1 A structural diagram of a screenshot of a part of the middle wing (the square part);

[0028] Figure 6 A schematic diagram of another folding triangular wing provided by the utility model, a main wing plus a trailing edge beam extension section, a fixed wing and ailerons, after unfolding the folding wing (the left half of which is in perspective);

[0029] Figure 7 A schematic diagram of another folding triangular wing provided by the utility model, which includes a main wing with a trailing edge beam extension, a fixed wing and ailerons, after the folding of the folding wing;

[0030] Figure 8 The utility model provides a front view of the wing of a portable aircraft adopting the folding wing of the utility model in the unfolded state;

[0031] Fig. 9 for Figure 8 A top view of the portable aircraft with its wings deployed;

[0032] Fig.10 for Figure 8 A top view of a portable aircraft with its wings folded;

[0033] Fig.11 A front view of a wing of a vertical take-off and landing aircraft using the folding wing of the utility model in an unfolded state;

[0034] Fig.12 for Fig.11 A top view of a vertical take-off and landing aircraft with its wings deployed;

[0035] Fig.13 for Fig.11 A front view of a vertical take-off and landing aircraft with its wings folded;

[0036] Fig.14 for Fig.11 A top view of a vertical take-off and landing aircraft with its wings folded.

[0037] In the figure:

[0038] 1——slide rail; 2——slider; 3——fixed hinge point of leading edge beam; 4——cross beams and longitudinal beams in multiple triangular trusses; 5——leading edge beam of wing; 6——trailing edge beam of wing; 7——skin support ribs; 8——skin connecting ribs; 9——airbag inflatable skin on upper surface; 10——lower surface skin; 11——fixed wing of leading edge beam extension section; 12——aileron; 13——wing unfolding / folding device; 14——airbag inflatable skin filling / exhausting device; 15——hard skin of leading edge of wing; 16——fixed wing of trailing edge beam extension section; 20——fuselage. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The utility model provides a foldable wing with a wing structure that can be folded and unfolded, comprising: a slide rail, a leading edge beam fixed hinge point, a slider, a wing leading edge beam, a cross beam, a longitudinal beam, a wing trailing edge beam and other components, these components are interconnected to form a foldable and unfoldable multiple triangular truss structure wing support frame; also includes: skin support ribs, skin connecting ribs, an upper surface airbag inflatable skin, a lower surface skin, a skin filling and exhaust device, a wing extension section fixed wing and aileron, and a wing unfolding / folding device.

[0041] Furthermore, the surface skin of the foldable wing is made of flexible material, and the wing support frame, slide rails, sliders, skin support ribs, skin connecting ribs, wing extension sections and ailerons of the wing are made of rigid materials.

[0042] Furthermore, the slide rail of the foldable wing is used to connect with the fuselage of the aircraft, the root end of the leading edge beam of the wing support frame is connected to the slide rail through the fixed hinge point of the leading edge beam, and the other end points of the wing root part of the wing support frame are slidably connected to the slide rail through a slider, and the wing unfolding / folding device drives the wing support frame to slide and unfold or fold along the slide rail around the fixed hinge point of the leading edge beam, the skin support rib is hinged to the leading edge beam of the wing support frame, and the skin connecting rib is placed at the trailing edge of the wing and connected to the upper and lower surface skins; the surface skin is connected and attached to the outer surface of the wing support frame, the skin support rib, and the skin connecting rib to form the outer surface of the wing; the fixed wing and aileron of the wing extension section are obtained by extending the wing end part of the leading edge beam of the wing support frame, arranging the fixed wing wing on the extended section, and the aileron is arranged at the trailing edge of the fixed wing wing; the same principle can also be used to extend the wing end part of the trailing edge beam of the wing support frame, arrange the fixed wing wing on the extended section, and arrange the aileron at the trailing edge of the fixed wing wing.

[0043] Furthermore, each group of skin support ribs is composed of two upper and lower ribs, the front ends of the two ribs are hinged to the leading edge beam of the wing support frame, and the rear ends are connected together to form the longitudinal section shape of the wing. A cavity is formed between the upper and lower ribs to accommodate the movement of the cross beam, longitudinal beam and trailing edge beam of the wing support frame in the cavity. Multiple skin support ribs and the leading edge beam of the wing are hinged to together constitute and maintain the aerodynamic frame shape of the wing.

[0044] Furthermore, the skin connecting rib is a hard sheet support structure made of rigid material, and its shape matches the shape of the wing trailing edge excluding the wing trailing edge beam after the wing support frame is unfolded. Its installation form is to connect the upper and lower surface skins to the upper and lower surfaces of the skin connecting ribs respectively, so that the upper and lower surface skins are connected together at the trailing edge of the wing through the skin connecting ribs, and are supported by the skin connecting ribs and maintain the shape of the wing trailing edge.

[0045] Furthermore, there are a plurality of skin connecting ribs, and each skin connecting rib is arranged between two of the skin supporting ribs.

[0046] Furthermore, the surface skin includes an airbag inflatable skin located on the upper surface of the wing and a wing flexible skin located on the lower surface of the wing.

[0047] Furthermore, the airbag inflatable skin is composed of two overlapping flexible skins, which are divided by connecting parts into a number of independent or interconnected airbags; the airbag inflatable skin is connected or attached to the upper surface of the wing leading edge beam, skin support ribs, and skin connecting ribs.

[0048] Furthermore, after the airbag inflatable skin is inflated, the airbag swells up and can be shaped and hardened on the surface to form the skin on the upper surface of the wing; the flexible skin on the lower surface of the wing is connected or attached to the wing leading edge beam, the skin support rib, and the lower surface of the skin connecting rib; the skin on the upper and lower surfaces of the wing can slide along the surface of the skin support rib during the wing folding or unfolding process.

[0049] Furthermore, the wing extension section and the aileron are arranged on the wing end extension section of the leading edge beam or the trailing edge beam of the wing support frame.

[0050] Preferably, the wing extension section and the aileron are foldable structures.

[0051] Furthermore, the foldable wing is composed of a foldable / expandable triangular main wing, a wing extension section and aileron.

[0052] Furthermore, the utility model also provides a variety of aircraft including the above-mentioned fixed-wing folding wings.

[0053] The fixed-wing folding wing provided by the utility model adopts a novel skin connecting rib design, which changes the connection mode of the upper and lower surface skins at the trailing edge of the wing, realizes the role of the tail tip slider replacing the skin supporting rib, and enables the upper and lower surface flexible skins to adapt to the tensile deformation during the folding and unfolding process of the wing. At the same time, it also has the functions of simplifying the skin supporting rib structure, keeping the skin supporting rib structure intact, connecting and supporting the upper and lower surface skins, stabilizing the trailing edge of the wing, and pushing and pulling to tighten the wing skin.

[0054] On the other hand, the utility model provides a new type of fixed wing and aileron design, which is arranged at the end of the leading edge beam or the trailing edge beam, thereby changing the defects of the prior art and forming a new fixed wing and aileron with a simple structure and reliable performance.

[0055] Furthermore, the utility model optimizes the airbag inflatable skin design to stabilize the wing surface skin.

[0056] The present application is further described below through specific examples.

[0057] Embodiment 1:

[0058] The first embodiment of the utility model provides a fixed-wing folding wing, comprising a foldable and unfoldable delta-shaped main wing, a leading edge beam extension section fixed wing and an aileron.

[0059] like Figure 1 As shown, the triangular main wing of the foldable wing includes: a slide rail (1) fixedly mounted on the fuselage (20), a slider (2) arranged on the slide rail, a leading edge beam fixed hinge point (3), an inner cross beam and a longitudinal beam (4) of a multiple triangular truss, a wing leading edge beam (5), a wing trailing edge beam (6) and other components, which together constitute a foldable / expandable multiple triangular truss structure wing support skeleton; it also includes a plurality of skin support ribs (7) hinged to the wing leading edge beam (5), a plurality of skin connecting ribs (8), and a surface skin, wherein the surface skin includes an airbag inflatable skin (9) on the upper surface of the wing and a skin (10) on the lower surface of the wing; wherein each skin connecting rib (8) is arranged between two adjacent skin support ribs (7) and is used to connect the upper and lower surface skins together at the trailing edge of the wing, so that the upper and lower surface skins are supported by the skin connecting ribs (8) and maintain the shape of the trailing edge of the wing.

[0060] Further, such as Figure 1 As shown, the leading edge beam extension section fixed wing and aileron of the foldable wing include: extending the wing end portion of the leading edge beam (5) of the wing support frame, arranging the leading edge beam extension section fixed wing (11) at the extension section of the leading edge beam (5), and installing the aileron (12) main body at the trailing edge portion thereof to form the adjustment surface of the wing.

[0061] Specifically, the slide rail (1), wing support frame, skin support rib (7), skin connection rib (8), leading edge beam extension section fixed wing (11) and aileron (12) are made of rigid materials, and the surface skin is made of flexible material.

[0062] Furthermore, if Figure 1 and Figure 3 As shown, each skin support rib (7) is composed of two upper and lower rods, the rear ends of the two rods are connected as a whole, the front ends of the two rods are hinged to the wing leading edge beam (5), and a cavity is formed between the two rods. During the folding / unfolding process of the wing, the crossbeams and longitudinal beams (4) of the wing support frame and the wing trailing edge beam (6) slide in the cavity of the skin support rib (7). The wing support frame plays a role in driving, supporting, unfolding and positioning the multiple skin support ribs (7), and together with the multiple skin support ribs (7), it forms and maintains the wing structure shape.

[0063] Furthermore, the leading edge of the skin support rib (7) is positioned by unfolding the wing support frame, and the trailing edge can be positioned in a variety of ways, including using special positioning tension cables or positioning tension cables connected to the surface skin.

[0064] When the wing is unfolded, the skin connecting rib (8) is installed in the following position: Figure 1 and Figure 4 As shown, the skin connecting rib (8) is located between two adjacent skin supporting ribs (7) and at the rear of the wing trailing edge beam (6).

[0065] Specifically, Figure 4 The "skin connecting rib (8)" is a hard sheet support structure made of rigid material, and its shape matches the shape of the wing trailing edge other than the wing trailing edge beam (6) after the wing support frame is unfolded. Its installation form is to connect the upper surface airbag inflatable skin (9) and the lower surface skin (10) to the upper and lower surfaces of the skin connecting rib (8) respectively, so that the upper and lower surface skins are connected together at the wing trailing edge through the skin connecting rib (8) (other parts of the wing trailing edge are in a non-connected state), supported by the skin connecting rib (8) and maintain the shape of the wing trailing edge.

[0066] Specifically, the functions of the skin connecting rib (8) include: connecting the flexible skins of the upper and lower surfaces of the wing together, and pulling the skins of the upper and lower surfaces of the wing downward to unfold and tighten under the push of the wing trailing edge beam (6); supporting the wing surface skin together with the skin supporting rib (7), maintaining the aerodynamic shape of the wing, and bearing the aerodynamic load of the wing; replacing the tail tip slider of the skin supporting rib, so that the flexible skins of the upper and lower surfaces will not be stretched and deformed by the skin supporting rib (7) during the folding and unfolding of the wing, thereby maintaining the integrity of the skin supporting rib (7) structure and simplifying the skin supporting rib structure.

[0067] like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown in the figure, the airbag inflatable skin (9) is connected and attached to the upper surface of the wing leading edge beam (5), the skin support rib (7), and the skin connecting rib (8) to form the upper surface skin of the wing; the lower surface skin (10) is attached and connected to the lower surface of the wing leading edge beam (5), the skin support rib (7), and the skin connecting rib (8) to form the lower surface skin of the wing, and the upper and lower surface skins can slide along the surface of the skin support rib (7). After the wing is unfolded, the airbag inflatable skin filling / exhausting device (14) inflates the airbag inflatable skin (9) to make the airbag bulge, shape and harden the surface, so as to realize the aerodynamic shape of the wing when flying.

[0068] Figure 1 and Figure 5It is also shown that each airbag of the airbag inflatable skin (9) is placed on the upper surface of the skin support rib (7). After the airbag is inflated, the air pressure inside the airbag increases, and each airbag bulges under the constraint of the connecting parts between the airbags. The skin on the upper surface of the airbag is shaped and hardened to form the skin on the upper surface of the wing, and the skin on the lower surface of the airbag is pressed downward onto the upper surface of the skin support rib (7), thereby strengthening the supporting effect of the skin support rib (7) on the airbag inflatable skin (9) and stabilizing the shape of the upper surface of the wing.

[0069] Furthermore, the airbag inflatable skin of this embodiment is also equipped with an internal and external pressure difference detection and adjustment device, which can adjust the pressure difference balance inside and outside the airbag during the aircraft's flight in the air (omitted in the drawings), thereby ensuring the safety of the airbag inflatable skin when the aircraft flies at different altitudes.

[0070] Specifically, the unfolding process of the foldable wing is as follows: under the action of the wing unfolding / folding device (13), the wing support frame slides downward along the slide rail (1) around the fixed hinge point (3) of the leading edge beam and unfolds, driving the skin support ribs (7), the upper and lower surface skins and skin connecting ribs (8), the extended fixed wings (11) and the ailerons (12) connected thereto to unfold synchronously; after the wing support frame is fully unfolded and locked, the skin support ribs (7) and the left and right sides of the surface skin are respectively unfolded into place; the wing trailing edge beam ( 6) pushes the skin connection rib (8) in contact with it to move backward, thereby driving the upper and lower surface skins to stretch backward. After fully unfolding, the skin connection rib (8) is fixed by the wing trailing edge beam (6), and together with the skin support rib (7), it supports a stable wing trailing edge. At this point, the wing surface skin is stretched and supported by the wing support frame, the skin support rib (7), and the skin connection rib (8), and is fully unfolded and tightened, and the triangular folding wing main wing plus the extended section fixed wing (11) and the aileron (12) are unfolded into place.

[0071] At the same time, the airbag inflatable skin filling / exhausting device (14) inflates the airbag inflatable skin (9) to shape it and harden its surface into the upper surface skin of the wing, thereby improving the aerodynamic shape of the upper surface of the wing. The upper surface airbag inflatable skin (9) and the lower surface skin (10) together constitute the outer surface of the main wing of the foldable wing.

[0072] At this point, the folding wing unfolding process is completed, forming Figure 1 The fixed-wing wing shown is capable of providing lift to the aircraft.

[0073] Furthermore, the unfolding / folding process of the foldable wing is a reversible process. When the wing is folded, the airbag inflatable skin filling / exhausting device (14) exhausts the air inside the airbag inflatable skin (9), and the wing support frame is folded, driving the skin support ribs (7), upper and lower surface skins and skin connecting ribs (8), extended section fixed wings (11) and ailerons (12) connected thereto to be folded synchronously. At this time, the wing trailing edge beam (6) and the skin connecting ribs (8) are out of contact, the upper and lower surface skins are relaxed, and slide and fold along the surface of the skin support ribs (7). The trailing edges of the upper and lower surface skins are in a plurality of opening states, and the skin support ribs (7) will not be blocked by the upper and lower surface skins during the process of folding and extending downward.

[0074] Further, Figure 2 It is a schematic diagram of a foldable wing after folding, showing the state of the wing after it is fully folded. At this time, the wing support frame is folded and gathered toward the fuselage (20), which causes the shape of the wing to change completely. Its volume and area are reduced several times compared with the unfolded wing.

[0075] Figure 3 yes Figure 1 The AA cross-sectional view of the foldable wing shows the relationship between the wing support frame and skin support ribs (7), the upper surface airbag inflatable skin (9), and the lower surface skin (10) after the wing is unfolded.

[0076] Figure 4 yes Figure 1 The BB cross-sectional view of the foldable wing shows the relationship between the skin connecting ribs (8) and the wing supporting frame, the upper surface airbag inflatable skin (9), and the lower surface skin (10) after the wing is unfolded.

[0077] Figure 5 yes Figure 1 A partial cut-away view of the wing after deployment, showing the relationship between the airbag inflatable skin (9), the lower surface skin (10) and the skin support ribs (7).

[0078] In summary, the airfoil of the folding wing is a triangular folding wing main wing + fixed wing wing and aileron.

[0079] Embodiment 2:

[0080] Based on the same principle, the utility model provides a second embodiment, including a foldable and unfoldable triangular wing main wing plus a trailing edge beam extension section fixed wing and aileron folding wing; the difference between the second embodiment and the first embodiment is that: the first embodiment is to extend the wing end of the leading edge beam of the wing support frame, and set the fixed wing and aileron in the leading edge beam extension section (set along the leading edge beam direction); the second embodiment is to extend the wing end of the trailing edge beam of the wing support frame, and set the fixed wing and aileron in the trailing edge beam extension section (set along the trailing edge beam direction). The two embodiments have different airfoils, and the main wing wing end structure shapes are different.

[0081] Figure 6 The present invention is a schematic plan view of the unfolded folding wing of the folding triangular wing main wing plus the trailing edge beam extension section fixed wing and aileron in the present embodiment (the left half of which is perspective), wherein the trailing edge beam extension section fixed wing and aileron are obtained by extending the wing end of the trailing edge beam (6) of the wing support frame, and the trailing edge beam extension section fixed wing (16) is arranged on the extension section, and the aileron (12) is arranged at the trailing edge of the trailing edge beam extension section fixed wing (16).

[0082] Furthermore, when the wing of the present embodiment is unfolded, under the action of the wing unfolding / folding device (13), the wing support frame slides downward along the slide rail (1) around the fixed hinge point (3) of the leading edge beam and unfolds, driving the skin support ribs (7), the upper and lower surface skins and the skin connecting ribs (8), the trailing edge beam extension section fixed wings (16) and the ailerons (12) connected thereto to unfold synchronously. After the wing support frame is fully unfolded and locked, the triangular folding wing main wing plus the trailing edge beam extension section fixed wings (16) and the ailerons (12) are also fully unfolded.

[0083] like Figure 6 As shown, the trailing edge beam extension section fixed wing (16) and the aileron (12) change their positions as the trailing edge beam (6) moves. To prevent the trailing edge beam extension section fixed wing (16) from rotating too much at the wing end of the triangular main wing after the wing is folded, thereby occupying the movement space of the triangular main wing upper skin support rib (7), it is preferred that the trailing edge beam extension section fixed wing (16) of this embodiment is formed into an obtuse angle shape at the wing end of the triangular main wing, that is, the trailing edge beam extension section fixed wing (16) forms an obtuse angle less than 180° with the trailing edge beam to adapt to the space change.

[0084] like Figure 6 As shown, after the wing is unfolded, the trailing edge beam extension fixed wing (16) and the aileron (12) are unfolded longitudinally to both sides along the trailing edge beam (6). Figure 1 The airfoil of the first embodiment shown has a larger wingspan.

[0085] Figure 7 It is a plan view of the folding wing of the folding triangular wing of this embodiment after the main wing plus the trailing edge beam extension section fixed wing and the aileron are folded.

[0086] Furthermore, the folding wings described in Example 1 and Example 2 can be equipped with leading edge flaps at the leading edge beam hard skin (15) as required to increase the wing adjustment capability.

[0087] Furthermore, the folding wings described in Example 1 and Example 2 can be combined with the folding flap technology provided by 202010730070.8 (folding wings with folding trailing edge flaps) as needed to provide trailing edge flaps for the folding wings, thereby further increasing the wing adjustment capability.

[0088] Those skilled in the art will appreciate that the present invention is not limited to the technical scope provided in Embodiment 1 and Embodiment 2, and may include the following variations under the premise of complying with the basic principles of the present invention:

[0089] 1. The shapes of the rods of the wing support frame and the number of the cross beams and longitudinal beams (4) in the multiple triangular trusses can be adjusted according to actual needs.

[0090] 2. The relative positions of the cross beams and longitudinal beams (4) in the multiple triangular trusses can be adjusted according to actual needs.

[0091] 3. In other embodiments, a vertical tail can be installed at the fixed-wing extension section (11).

[0092] 4. The fixed-wing extension section (11) and the aileron (12) of Example 1 and the fixed-wing extension section (16) and the aileron (12) of Example 2 can be designed to be foldable as needed.

[0093] 5. In some embodiments, both the upper and lower surface skins may be airbag inflatable skins.

[0094] 6. In some embodiments, the airbag inflatable skin may adopt the integral interconnected skin adopted in Embodiment 1 and Embodiment 2, or may adopt the skin of the airbags being independent of each other.

[0095] 7. In some embodiments, when the number of skin support ribs (7) and skin connecting ribs (8) is large enough to provide sufficient support to the upper and lower surface skins and to provide sufficient tension, an airbag-inflatable skin may not be used.

[0096] 8. When the skin support rib (7) is unfolded by the wing support frame, there are multiple positioning and fixing methods, including: tension cable unfolding positioning, skin associated tension cable unfolding positioning, etc.

[0097] Embodiment 3:

[0098] The present application also provides an aircraft including the above-mentioned folding wings. Figure 8-10As shown, Example 3 is a type of "portable folding wing aircraft", which includes the folding wings provided in Example 1. Folding wings of different sizes can be used, and aircraft of different weights and sizes can be manufactured as needed. Specific embodiments may include: single-person portable aircraft, portable aircraft for transportation, integrated storage, transportation and launch type aircraft, airdrop type aircraft, submarine-to-air launch aircraft, etc.

[0099] Embodiment 4:

[0100] like Figure 11-14 As shown, Example 4 is a vertical take-off and landing aircraft including the folding wings provided in Example 1, which can be used on ships to provide a long-range, recoverable, and reusable aircraft in narrow space scenarios such as ships.

[0101] The utility model has the following beneficial effects:

[0102] 1. It overcomes a series of problems existing in the prior art, such as complex structure and poor stability. The wing folding / unfolding performance is more perfect, the wing structure is more optimized and simple, the performance is more stable and reliable, and the wing adjustment function is complete and feasible.

[0103] 2. The folding wing with triangular folding main wing + extended fixed wing and aileron has a large wingspan, large wing surface area and large load bearing capacity when unfolded; after folding, the volume and area of ​​the wing are reduced several times, which greatly improves the convenience of storage and transportation, and can achieve tasks that existing fixed-wing wings cannot accomplish.

[0104] 3. The folding wing described in the utility model is a fixed-wing wing, which is a universal component of aircraft and is suitable for various types of manned and unmanned aircraft flying at medium and low speeds. It can produce a variety of new aircraft and open up a new field of folding-wing aircraft.

[0105] 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 in the protection scope of the present invention.

Claims

1. A fixed-wing folding wing, characterized in that: It comprises a triangular folding wing main wing, an extended fixed wing and an aileron, wherein the triangular folding wing main wing comprises multiple triangular wing support frames, skin support ribs and skin connecting ribs; The multiple triangular wing support frame includes a wing leading edge beam and a wing trailing edge beam, and the extended section fixed wing and aileron are located at the leading edge beam or the trailing edge beam extension section.

2. The fixed-wing folding wing according to claim 1, characterized in that: The skin connecting ribs are made of rigid material and have a sheet structure. There are multiple skin connecting ribs, each of which is arranged between two adjacent skin supporting ribs, and the length of the skin connecting ribs is shorter than that of the skin supporting ribs.

3. The fixed-wing folding wing according to claim 1, characterized in that: When the extended section fixed wing and the aileron are located at the extended section of the trailing edge beam, the extended section fixed wing forms an obtuse angle with the trailing edge beam.

4. The fixed-wing folding wing according to claim 1, characterized in that: It also includes an airbag-inflated skin, and each airbag of the airbag-inflated skin is placed on the upper surface of the skin support rib.

5. The fixed-wing folding wing according to claim 1, characterized in that: Each group of skin support ribs is composed of two upper and lower rods, the rear ends of the two rods are connected together, the front ends of the two rods are hinged to the wing leading edge beam, and a cavity is formed between the two rods.

6. The fixed-wing folding wing according to claim 1, characterized in that: The skin connecting rib is provided with a wing trailing edge folding flap.

7. The fixed-wing folding wing according to any one of claims 1 to 6, characterized in that: It also includes slide rails fixedly mounted on the fuselage, fixed hinge points of leading edge beams, inner cross beams and longitudinal beams of multiple triangular trusses, an airbag inflatable skin filling / exhausting device, and an internal and external pressure difference detection and adjustment device.

8. An aircraft comprising the fixed-wing folding wing according to any one of claims 1 to 7.

9. The aircraft according to claim 8, characterized in that The aircraft is: a single-person portable aircraft, a portable vehicle, an integrated storage, transportation and launch aircraft, an airdrop type aircraft or a submarine-launched aircraft.

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