Bird feather-like one-way valve wing structure and aircraft

Abstract

The application provides a bird feather-like one-way valve wing structure, which comprises a feather shaft, a plurality of feather branches, a branch assembly and a swing assembly, the plurality of feather branches are symmetrically arranged on both sides of the feather shaft, a plurality of barbed feather twigs and a plurality of grooved feather twigs between adjacent two feather branches are connected one by one, the swing assembly comprises a plurality of barbed feather twig valves and a plurality of grooved feather twig valves, in the case that the bird feather-like one-way valve wing structure is in a first state, adjacent two barbed feather twig valves are arranged in superposition, and adjacent two grooved feather twig valves are arranged in superposition, in the case that the bird feather-like one-way valve wing structure is in a second state, gaps are left between adjacent two barbed feather twig valves, and gaps are left between adjacent two grooved feather twig valves. The bird feather-like one-way valve wing structure provided by the application can improve the lift of the wing when the aircraft is flying, effectively reduce the resistance of the wing when the wing is lifted upward, and thus improve the flight efficiency of the aircraft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aircraft, in particular to a bird feather one-way valve wing structure and an aircraft. BACKGROUND

[0002] Due to the characteristics of flexibility and maneuverability, flapping-wing aircraft is one of the research hotspots in the field of aircraft. The flapping-wing aircraft wing flies by flapping up and down to get lift. When the flapping-wing aircraft wing flaps down, the abdominal airflow generates an upward reaction force on the wing, and the aircraft obtains upward lift. When the flapping-wing aircraft wing flaps up, the dorsal airflow generates a downward reaction force on the wing, and the aircraft inevitably has a lifting wing resistance. The lifting wing resistance affects the flapping speed of the wing, thereby affecting the flight efficiency of the aircraft.

[0003] Bird feathers have many excellent physical and chemical properties, such as hydrophobicity, tight connection, light weight, and heat preservation, which are important objects for biomimetic structure simulation. Among them, the one-way valve microstructure of bird feathers makes the flight of birds efficient. This one-way valve structure of bird feathers can lock tightly when the bird flaps down, capturing air; and can open the valve to make air flow when the bird flaps up, reducing flow resistance, thereby reducing the force on the bird's wings. In addition, a large number of barbules are distributed on a bird feather, ensuring its stability and reliability. Even if the feather is partially damaged, it will not greatly affect the flight ability of the bird. Inspired by the above-mentioned bird feather biomimetic structure, based on the problem of how to improve the downward flapping lift of the aircraft wing during flight while reducing the resistance of the upward flapping, the present application designs a bird feather one-way valve wing structure for an aircraft. SUMMARY

[0004] The present application provides a bird feather one-way valve wing structure and an aircraft to solve the problem of excessive resistance of the wing of the aircraft in the prior art when flapping up, which affects the flight efficiency of the aircraft.

[0005] In a first aspect, the present application provides a bird feather one-way valve wing structure, comprising: a feather shaft, a plurality of feather branches, a branch assembly, and a swing assembly.

[0006] A plurality of feather branches are symmetrically arranged on both sides of the feather shaft; the branch assembly comprises a plurality of barbules and a plurality of grooves, and a plurality of barbules and a plurality of grooves are arranged on both sides of each feather branch; and a plurality of barbules and a plurality of grooves between adjacent feather branches are connected one by one.

[0007] The swing assembly comprises a plurality of barb feather petals and a plurality of groove feather petals, the plurality of barb feather petals are connected with the plurality of barb feather one by one, and the plurality of groove feather petals are connected with the plurality of groove feather one by one.

[0008] The bird feather one-way valve wing structure can be switched between a first state and a second state, when the bird feather one-way valve wing structure is in the first state, two adjacent barb feather petals are arranged in superposition, and two adjacent groove feather petals are arranged in superposition, when the bird feather one-way valve wing structure is in the second state, a gap is left between two adjacent barb feather petals, and a gap is left between two adjacent groove feather petals.

[0009] According to the bird feather one-way valve wing structure provided by the application, the first included angle between the barb feather and the feather branch is greater than the second included angle between the groove feather and the feather branch.

[0010] According to the bird feather one-way valve wing structure provided by the application, the end of the barb feather away from the feather branch is provided with a hook, the end of the groove feather away from the feather branch is provided with a groove, and the hook is connected with the groove.

[0011] According to the bird feather one-way valve wing structure provided by the application, when the hook is a plurality of hooks, the plurality of hooks are arranged in sequence along the axial direction of the barb feather.

[0012] According to the bird feather one-way valve wing structure provided by the application, the barb feather petal extends from the root of the barb feather to the trunk.

[0013] According to the bird feather one-way valve wing structure provided by the application, the groove feather petal extends from the root of the groove feather to the trunk.

[0014] According to the bird feather one-way valve wing structure provided by the application, at least one of the feather shaft and the plurality of feather branches is a hollow structure.

[0015] According to the bird feather one-way valve wing structure provided by the application, the bird feather one-way valve wing structure further comprises a sensor, and the sensor is arranged on at least one of the feather shaft and the plurality of feather branches, wherein the sensor is a temperature sensor, a barometric pressure sensor or a strain sensor.

[0016] According to the bird feather one-way valve wing structure provided by the application, the plurality of barb feather petals and the plurality of groove feather petals are made of flexible materials.

[0017] In a second aspect, the present application provides an aircraft, comprising: a main body and the bird feather-like one-way valve wing structure as described in any one of the preceding aspects, wherein the bird feather-like one-way valve wing structure is arranged on the main body.

[0018] The bird feather-like one-way valve wing structure provided by the present application has the following advantages: the bird feather-like one-way valve wing structure is provided with a quill, and a plurality of feather branches are symmetrically arranged on both sides of the quill, and the whole has a bird feather-like structure; further, branch assemblies and swing assemblies are arranged between adjacent feather branches, and the swing assemblies are connected to the branch assemblies, wherein the swing assemblies are composed of a plurality of barb feather branch valves and a plurality of groove feather branch valves; when the wing of the aircraft is flapping downward, the two adjacent barb feather branch valves are arranged in close contact, and the two adjacent groove feather branch valves are arranged in close contact, so that the valves are tightly overlapped, the abdominal side airflow is almost impermeable, the air can be locked, the lift of the wing of the aircraft is improved, and further, when the wing of the aircraft is flapping upward, a gap is left between the two adjacent barb feather branch valves and a gap is left between the two adjacent groove feather branch valves under the action of the back wind, that is, the airflow channel is opened, and the back airflow can penetrate the wing of the aircraft, thereby reducing the resistance of the wing of the aircraft flapping upward; in the bird feather-like one-way valve wing structure, the barb feather branch valves and the groove feather branch valves can form a one-way valve membrane, which can effectively avoid the problem that the resistance of the wing of the aircraft flapping upward is too large, thereby affecting the flight efficiency of the aircraft. The bird feather-like one-way valve wing structure provided by the present application can improve the lift of the wing of the aircraft flapping downward while effectively reducing the resistance of the wing of the aircraft flapping upward, thereby improving the flight efficiency of the aircraft. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0020] Figure 1 is a structural schematic diagram of the bird feather-like one-way valve wing structure provided by the embodiments of the present application;

[0021] Figure 2 is a local enlarged schematic diagram of the bird feather-like one-way valve wing structure provided by the embodiments of the present application;

[0022] Figure 3 is one of side schematic diagrams of the bird feather-like one-way valve wing structure provided by the embodiments of the present application;

[0023] Figure 4 is the other of side schematic diagrams of the bird feather-like one-way valve wing structure provided by the embodiments of the present application;

[0024] REFERENCE NUMERALS:

[0025] 1: feather shaft; 2: feather branch; 3: branch assembly;

[0026] 31: barbed featherlet; 32: grooved featherlet; 4: swing assembly;

[0027] 41: barbed featherlet valve; 42: grooved featherlet valve. DETAILED DESCRIPTION

[0028] In the description of the present application, it should be noted that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "provided with", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] The following will be described in combination with Figures 1 to 4 The present application provides an imitation bird feather one-way valve wing structure and an aircraft.

[0032] In a first aspect, the present application provides an imitation bird feather one-way valve wing structure, comprising: a feather shaft 1, a plurality of feather branches 2, a branch assembly 3 and a swing assembly 4.

[0033] The plurality of feather branches 2 are symmetrically arranged on both sides of the feather shaft 1, the branch assembly 3 comprises a plurality of barbed featherlets 31 and a plurality of grooved featherlets 32, and the plurality of feather branches 2 are respectively provided with a plurality of barbed featherlets 31 and a plurality of grooved featherlets 32 on both sides, and the plurality of barbed featherlets 31 and the plurality of grooved featherlets 32 between the adjacent two feather branches 2 are connected one by one.

[0034] The swing assembly 4 comprises a plurality of barbed featherlet valves 41 and a plurality of grooved featherlet valves 42, the plurality of barbed featherlet valves 41 are connected one by one with the plurality of barbed featherlets 31, and the plurality of grooved featherlet valves 42 are connected one by one with the plurality of grooved featherlets 32.

[0035] The bird feather-shaped one-way valve wing structure can be switched between a first state and a second state, in the first state, the two adjacent barb feather branch valves 41 are arranged in superposition, and the two adjacent groove feather branch valves 42 are arranged in superposition, in the second state, a gap is left between the two adjacent barb feather branch valves 41, and a gap is left between the two adjacent groove feather branch valves 42.

[0036] Specifically, as Figure 1 shown, the plurality of feather branches 2 are symmetrically arranged on both sides of the feather shaft 1, and the overall structure is in the shape of a bird feather, the feather branches 2 on the same side can be arranged in parallel in sequence at a fixed interval. Figure 1 The shape shown is only an example, and the contour is designed according to actual needs, wherein the feather branch 2 can be welded to the feather shaft 1 or detachably connected to the feather shaft 1, and the connection mode capable of achieving firm connection of the two falls within the protection scope of the present application.

[0037] The feather shaft 1 and the feather branch 2 can be solid or hollow, and in view of reducing the overall weight of the aircraft wing structure and the resistance of the self-gravity, the feather shaft 1 and the feather branch 2 in the embodiment are preferably hollow.

[0038] Figure 2 The bird feather-shaped one-way valve wing structure provided for the figure 1 is a partial enlarged schematic view in the structural schematic view, as Figure 2 can be seen, the adjacent feather branches 2 are parallel to each other, and the branch assembly 3 is arranged between the adjacent feather branches 2, the branch assembly 3 is composed of a plurality of barb feather branches 31 and a plurality of groove feather branches 32, and the two sides of the plurality of feather branches 2 are respectively provided with a plurality of barb feather branches 31 and a plurality of groove feather branches 32. Figure 3 As shown, one end of the barb feather branch 31 and one end of the corresponding groove feather branch 32 are detachably connected, and after the two are fixedly installed, they respectively form an included angle with the corresponding feather branch 2.

[0039] As Figure 2 shown, the barb feather branch 31 is provided with a barb feather branch valve 41, and the groove feather branch 32 is provided with a groove feather branch valve 42, the two adjacent barb feather branch valves 41 are arranged in superposition, that is, a plurality of barb feather branch valves 41 are arranged in superposition, the two adjacent groove feather branch valves 42 are arranged in superposition, that is, a plurality of barb feather branch valves 41 are arranged in superposition, to form a sealing structure.

[0040] The feather shaft 1, the feather branch 2, the groove feather branchlet 32 and the barbed feather branchlet 31 can be solid or hollow, and the feather shaft 1 and the feather branch 2 in the embodiment of the application are preferably hollow to reduce the overall weight of the aircraft wing structure and the resistance of the gravity of the aircraft wing structure.

[0041] The bird feather-like one-way valve wing structure provided by the application has two states, a first state and a second state, in the process of flight. Figure 3 As shown in the figure, when the ventral airflow blows upwards, the barbed feather branchlet valve 41 and the groove feather branchlet valve 42 are turned downwards, the adjacent two barbed feather branchlet valves 41 form a gap, forming an airflow channel, and the adjacent two groove feather branchlet valves 42 also form a gap, forming an airflow channel, and the dorsal airflow passes through the airflow channel towards the lower side, so that the air resistance of the wing when it is waved downwards is greatly reduced, and the power consumption of waving is also reduced, thereby reducing the energy consumption of the aircraft and improving the flight efficiency.

[0042] It should be noted that in the parallel flight state, i.e. when the wing does not need to be waved, the wing structure of the aircraft is in the first state, i.e. the adjacent two barbed feather branchlet valves 41 are arranged in a superimposed manner, the adjacent two groove feather branchlet valves 42 are arranged in a superimposed manner, and the adjacent two barbed feather branchlet valves 41 are arranged in a superimposed manner.

[0043] In the case of lifting the wing upwards, the aircraft wing has a second state, i.e. Figure 4 As shown in the figure, when the dorsal airflow blows downwards, the barbed feather branchlet valve 41 and the groove feather branchlet valve 42 are turned downwards under the action of the airflow, the adjacent two barbed feather branchlet valves 41 form a gap, forming an airflow channel, and the adjacent two groove feather branchlet valves 42 also form a gap, forming an airflow channel, and the dorsal airflow passes through the airflow channel towards the lower side, so that the air resistance of the wing when it is waved downwards is greatly reduced, and the power consumption of waving is also reduced, thereby reducing the energy consumption of the aircraft and improving the flight efficiency. The swinging assembly 4 forms a one-way valve structure.

[0044] The application provides a bird feather-like one-way valve wing structure, which comprises a feather shaft 1, a plurality of feather branches 2 are symmetrically arranged on both sides of the feather shaft 1, and the whole has a bird feather-like structure. Branch assemblies 3 and swing assemblies 4 are arranged between adjacent feather branches 2, and the swing assembly 4 is connected to the branch assembly 3. The swing assembly 4 is composed of a plurality of barb feather branch petals 41 and a plurality of groove feather branch petals 42. When the aircraft wing is waved downward, the two adjacent barb feather branch petals 41 are arranged in superposition, the two adjacent groove feather branch petals 42 are arranged in superposition, the petals are tightly superimposed, the abdominal airflow is almost impermeable, the air can be locked, the lift of the aircraft wing is improved, and further, when the aircraft wing is waved upward, under the action of the back airflow, gaps are left between the two adjacent barb feather branch petals 41 and the two adjacent groove feather branch petals 42, that is, the airflow channel is opened, the back airflow can penetrate the aircraft wing, and then the resistance of the upward waving of the aircraft wing is reduced. In the bird feather-like one-way valve wing structure, the barb feather branch 31 petals and the groove feather branch petals 42 can form a “one-way valve film”, which can effectively avoid the problem that the resistance of the aircraft wing is too large when the wing is lifted, and affect the flight efficiency of the aircraft. The bird feather-like one-way valve wing structure provided by the application can improve the lift of the wing when the aircraft is flying downward, effectively reduce the resistance of the wing when the wing is lifted upward, and improve the flight efficiency of the aircraft.

[0045] In an optional embodiment, the first included angle between the barb feather branch 31 and the feather branch 2 is greater than the second included angle between the groove feather branch 32 and the feather branch 2.

[0046] Specifically, as shown in Figure 3 and Figure 4 , the first included angle a is formed between the barb feather branch 31 and the feather branch 2 connected thereto, and the second included angle b is formed between the groove feather branch 32 and the feather branch 2 connected thereto. Since the first included angle a is greater than the second included angle b, the barb feather branch 31 tends to tilt with the groove feather branch 32, and the two are naturally abutted together. By connecting the abutting end through a connecting structure, the barb feather branch 31 and the groove feather branch 32 are in a locked state in the first state and the second state, effectively improving the tear resistance of the wing structure and enhancing the firmness of the wing structure during use.

[0047] In an optional embodiment, the end of the barb feather branch 31 away from the feather branch 2 is provided with a hook, the end of the groove feather branch away from the feather branch 2 is provided with a hook groove, and the hook is connected with the hook groove.

[0048] Specifically, as shown in Figure 3As shown, the end of the barb 31 furthest from the barb 2 (the end inclined towards the grooved barb) is provided with a hook, which faces downwards towards the wing, i.e., the ventral side of the aircraft. The hook is connected to the groove at the end of the grooved barb 32. After the hook and groove are connected, a certain amount of force is required to tear or pull them apart. Therefore, the two are always connected during flight, providing a certain amount of support. The shape of the end of the hook is preferably rectangular or triangular, but not limited to these.

[0049] The buckle can be a separate part connected to the barbed feather branch 31, or it can be an integral part of the barbed feather branch 31. Similarly, the groove can be a separate part connected to the grooved feather branch 32, or it can be an integral part of the grooved feather branch 32. The specific setting method is not limited here, and can be selected according to the actual situation.

[0050] In an optional embodiment, when there are multiple hooks, the multiple hooks are arranged sequentially along the axial direction of the barbed twigs 31.

[0051] Specifically, the number of hooks at the end of the barb branch 31 can be one or more. Considering the risk of damage to the hooks under wind conditions, multiple hooks are preferred. Figure 3 As shown, multiple hooks are arranged sequentially at certain intervals along the axial direction of the barb branch 31, starting from the very end of the barb branch 31.

[0052] In an optional embodiment, the barb branchlet valve 41 extends from the base of the barb branchlet 31 to the main trunk.

[0053] Specifically, such as Figure 3 As shown, the barbial branchlet valve 41 is connected to the barbial branchlet 31. The connection method is that it extends from the root of the barbial branchlet 31 to the main stem of the barbial branchlet 31. The root of the barbial branchlet 31 refers to the junction of the barbial branchlet 31 and the barbial branchlet 2 it is connected to. The main stem of the barbial branchlet 31 refers to the part between the root of the barbial branchlet 31 and the hook on the barbial branchlet 31. The shape and size of the barbial branchlet valve 41 are not specifically limited. It can be square, arc-shaped, or other irregular shapes, as long as it can allow adjacent barbial branchlet valves 41 to be stacked sequentially, tightly covering and airtight.

[0054] In an optional embodiment, the grooved branchlet valve 42 extends from the root of the grooved branchlet 32 ​​to the main trunk.

[0055] Specifically, such as Figure 3As shown, the groove vane valve 42 is connected to the groove vane 32, and the connection mode is to extend from the root of the groove vane 32 to the trunk of the groove vane 32. The root of the groove vane 32 refers to the intersection of the groove vane 32 and the vane 2 connected thereto, and the trunk of the groove vane 32 refers to the part between the root of the groove vane 32 and the hook groove on the groove vane. The shape and size of the groove vane valve 42 are not limited, which can be square, circular arc, or other irregular shapes, and can be the same as or different from the barb vane valve 41, which can realize the sequential stacking of adjacent groove vane valves 42 and tight coverage without wind.

[0056] It should be noted that the groove vane valve 42 can be flipped on the groove vane 32, and the barb vane valve 41 can be flipped on the barb vane 31, and the implementation mode can be various, for example, the groove vane valve 42 and the barb vane valve 41 are made of elastic material and have certain resilience, so that under the condition of no wind or small wind, the groove vane valve 42 and the barb vane valve 41 are always in the stacked state under the action of resilience; or the groove vane valve 42 and the groove vane 32, and the barb vane valve 41 and the barb vane 31 are connected by shaft type connection, hinge type connection, etc., and a shaft, a hinge or the like is arranged between the groove vane valve 42 and the groove vane 32, and between the barb vane valve 41 and the barb vane 31 as a connecting piece, which has the effect of resilience. The specific setting mode is not limited here, which can realize the resilience effect.

[0057] In optional embodiments, at least one of the vane shaft 1 and the plurality of vane branches 2 is a hollow structure.

[0058] Specifically, in the design of the aircraft, in order to overcome the resistance caused by gravity, the material should be as light as possible, and in the embodiments of the present application, the vane shaft 1 can be made into a hollow structure, the vane branch 2 can be made into a hollow structure, and the vane shaft 1 and all vane branches 2 can be made into hollow structures. This setting not only reduces the overall flight load of the wing, which is conducive to overcoming the gravity resistance of the aircraft and improving the flight efficiency of the flight wing, but also integrates various sensing functions in the structure, which improves the application range and practicality of the structure

[0059] In optional embodiments, the bird feather-like one-way valve wing structure further comprises a sensor, and the sensor is arranged on at least one of the vane shaft 1 and the plurality of vane branches 2. The sensor is a temperature sensor, a barometric pressure sensor, or a strain sensor.

[0060] Specifically, in order to be able to monitor the flight condition of the aircraft wing in real time, a sensor is further arranged in the bird feather one-way valve wing structure. Due to the relatively dense structure, a micro sensor is preferably used. The sensor includes a temperature sensor, an air pressure sensor, and a strain sensor, etc. The temperature sensor is used to detect the temperature around the wing structure, the air pressure sensor is used to detect the air pressure value around the wing structure, and the strain sensor is used to detect the stress of the wing structure. Whether the surrounding condition of the current wing structure is suitable for continuing flight is determined through the above data.

[0061] The above sensors can be all installed in the feather shaft 1, or all installed in the feather branch 2, or placed in the feather shaft 1 and the feather branch 2 as required. The specific installation position is determined according to actual requirements, which is not limited in detail here.

[0062] In the optional embodiment, the plurality of barb featherlet valves 41 and the plurality of groove featherlet valves 42 are made of flexible materials.

[0063] Specifically, in order to facilitate the groove featherlet valve 42 to realize the overturning on the groove featherlet 32, and the barb featherlet valve 41 to realize the overturning on the barb featherlet 31, in the embodiment of the present application, the barb featherlet valve 41 and the groove featherlet valve 42 are made of flexible materials, such as carbon fiber materials, and other light and flexible materials.

[0064] In a second aspect, the embodiment of the present application provides an aircraft, comprising: a main body and the bird feather one-way valve wing structure described in any one of the above embodiments, and the bird feather one-way valve wing structure is arranged on the main body.

[0065] Specifically, the aircraft comprises an aircraft main body and a bird feather one-way valve wing structure, wherein the bird feather one-way valve wing structure is arranged on the aircraft main body. Since the aircraft comprises the bird feather one-way valve wing structure shown in the above embodiments, the specific structure of the bird feather one-way valve wing structure is referred to the above embodiments. Since the aircraft adopts the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0066] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A bird feather-inspired one-way valve wing structure, characterized in that, include: Rim, multiple barbs, branching assembly, and oscillation assembly; Multiple barbs are symmetrically arranged on both sides of the rachis; the branching assembly includes multiple barbs and multiple grooved barbs, and multiple barbs and multiple grooved barbs are respectively provided on both sides of the multiple barbs, and the multiple barbs and multiple grooved barbs between two adjacent barbs are connected in a one-to-one correspondence. The oscillating component includes multiple barb branchlet valves and multiple grooved branchlet valves, with the multiple barb branchlet valves connected one-to-one with the multiple barb branchlets, and the multiple grooved branchlet valves connected one-to-one with the multiple grooved branchlets. The bird-feather-inspired one-way valve wing structure can switch between a first state and a second state. When the bird-feather-inspired one-way valve wing structure is in the first state, two adjacent barbed barb valences are arranged in an overlapping manner, and two adjacent grooved barbed barb valences are arranged in an overlapping manner. When the bird-feather-inspired one-way valve wing structure is in the second state, there is a gap between two adjacent barbed barbed barb valences, and there is a gap between two adjacent grooved barbed barb valences.

2. The bird feather-inspired one-way valve wing structure according to claim 1, characterized in that, The first angle between the barb and the barb is greater than the second angle between the grooved barb and the barb.

3. The bird feather-inspired one-way valve wing structure according to claim 1, characterized in that, The barb is provided with a hook at the end away from the barb, and the grooved barb is provided with a groove at the end away from the barb, and the hook engages with the groove.

4. The bird feather-inspired one-way valve wing structure according to claim 3, characterized in that, When there are multiple hooks, the multiple hooks are arranged sequentially along the axial direction of the barbed twigs.

5. The bird feather-inspired one-way valve wing structure according to claim 1, characterized in that, The barbed branchlet valves extend from the base of the barbed branchlet to the main stem.

6. The bird feather-inspired one-way valve wing structure according to claim 1, characterized in that, The grooved branchlet valves extend from the root of the grooved branchlet to the main stem.

7. The bird feather-inspired one-way valve wing structure according to claim 1, characterized in that, The rachis and at least one of the plurality of barbs are hollow structural members.

8. The bird feather-inspired one-way valve wing structure according to claim 7, characterized in that, The bird feather-inspired one-way valve wing structure also includes a sensor, which is located on at least one of the feather shaft and the plurality of feather barbs, wherein the sensor is a temperature sensor, a pressure sensor or a strain sensor.

9. The bird feather-inspired one-way valve wing structure according to claim 1, characterized in that, The multiple barbed branchlets and the multiple grooved branchlet valves are all made of flexible materials.

10. An aircraft, characterized in that, include: The main body and the bird feather-like one-way valve wing structure according to any one of claims 1 to 9, wherein the bird feather-like one-way valve wing structure is disposed on the main body.

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