Bionic flying wing skeleton

Abstract

A bionic flight wing skeleton disclosed by the present invention comprises a back frame, two wing vein frames and two transmission assemblies, the back frame comprises a plurality of rib rods arranged in parallel, a ridge rod vertically connected in series with the middle parts of the rib rods, and two connecting rods symmetrically arranged at the two ends of the rib rods, and the end parts of the rib rods vertically sleeve the corresponding connecting rods; the connecting rods are made of carbon fiber materials, the two wing vein frames are symmetrically arranged on the two sides of the back frame, the roots of the wing vein frames are hinged to the corresponding connecting rods through the knuckle bearings, the connecting rods are made of the carbon fiber materials, lift force can be stably transmitted to the rib rods, and the rib rods are made of tough plastic materials, so that the lift force can be stably transmitted. The stress of the hinged end of the connecting rod can be buffered through certain deformation, so that the load of the hinged end of the back frame and the wing vein frame is effectively dispersed, the local stress of the hinged part is prevented from being too large, and the hinged part is prevented from being broken.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft, and particularly to a bionic flying wing skeleton. Background Art

[0002] Existing backpack flapping-wing aircraft generally include a rigid main body frame and a flexible wing vein assembly. The main body frame is connected to the human back through a shoulder fixing strap, and both sides are movably connected to the wing vein assembly through rotary joints. In the periodic flapping-wing motion, the connection part between the main body frame and the wing vein assembly needs to bear alternating bending moment and torsional combined load.

[0003] However, the existing main body frames generally adopt an equal-section box-shaped rod structure. Although it can ensure the overall stiffness, it lacks a structure that can disperse the load at the connection part, resulting in the connection part between the main body frame and the wing vein assembly being prone to fracture, increasing the use risk. Summary of the Invention

[0004] In view of this, the present invention provides a bionic flying wing skeleton, which is used to solve the problem that the main body frame of the bionic flying wing skeleton in the prior art lacks a structure that can disperse the load at the connection part, resulting in the connection part between the main body frame and the wing vein assembly being prone to fracture, increasing the use risk.

[0005] To achieve one or part or all of the above purposes or other purposes, the present invention provides a bionic flying wing skeleton, including a back frame, two wing vein frames, and two transmission components. The back frame includes a plurality of parallel rib rods, at least one ridge rod vertically connecting the middle parts of the rib rods, and two connecting rods symmetrically arranged at both ends of the rib rods. The ends of the rib rods are vertically sleeved on the corresponding connecting rods. Among them, the rib rods are made of plastic, the connecting rods are made of carbon fiber, the two wing vein frames are symmetrically arranged on both sides of the back frame, the roots of the wing vein frames are hinged to the corresponding connecting rods through joint bearings, and the two transmission components are respectively connected to the inner sides of the two wing vein frames. The transmission components are configured to connect the human arms and legs to drive the wing vein frames to flap around the hinge end through the flexion, extension, and swinging movements of the limbs.

[0006] Preferably, the rib rod includes a left half and a right half. One end of the left half and the right half overlaps and is hinged to each other in the distribution direction of the rib rod, and the hinge end of the two is fixed by a pin or a screw.

[0007] Preferably, the left half portion includes a middle rod and side rods. The side rods are detachably connected to the left end of the middle rod. The right half portion is centrosymmetric with the left half portion. The right end of the middle rod of the left half portion and the left end of the middle rod of the right half portion overlap in the distribution direction of the rib rods and are hinged to each other, and the hinged ends thereof are fixed by pins or screws. The connecting rods vertically pass through and are sleeved on one end of each side rod away from the corresponding middle rod one by one.

[0008] Preferably, the vein framework includes a plurality of vein shafts and a plurality of vein branches. The plurality of vein shafts are evenly distributed along the length direction of the connecting rods. One end of each of the vein shafts is hinged to the corresponding position of the connecting rod through a joint bearing. The plurality of vein branches are evenly distributed along the length direction of the vein shafts and are connected in series with a plurality of vein shafts. Among them, both the vein shafts and the vein branches are made of carbon fiber material.

[0009] Preferably, the back framework further includes a plurality of back branches made of carbon fiber material. The plurality of back branches are evenly distributed along the length direction of the rib rods and are vertically connected in series with a plurality of rib rods.

[0010] Preferably, the vein shaft is formed by sequentially connecting a plurality of short rods end to end. Plastic connectors are provided at both ends of each short rod. The adjacent plastic connectors are hinged to each other and are limited and fixed coaxially or approximately coaxially by pins or screws.

[0011] Preferably, a plurality of plastic limiting members are evenly distributed along the length direction of the vein shaft. Each part of the vein branch is detachably connected to each vein shaft through the plastic limiting member.

[0012] Preferably, the transmission assembly includes a grip rod and two first push-pull rods. The two first push-pull rods are respectively fixedly connected to both ends of the grip rod and are arranged in parallel. The end of the first push-pull rod away from the grip rod is fixedly connected to the inner side of the vein framework.

[0013] Preferably, the transmission assembly further includes a second push-pull rod. One end of the second push-pull rod is movably connected to the corresponding grip rod through a ball joint bearing. The other end of the second push-pull rod is movably connected with a foot sleeve.

[0014] Preferably, the transmission assembly further includes two booster rods. The two booster rods are respectively fixedly connected to both ends of the grip rod and are arranged in parallel. The end of the booster rod away from the grip rod is fixedly connected to the inner side of the vein framework, and the axis of the booster rod forms an angle with the axis of the adjacent first push-pull rod.

[0015] Implementing the embodiments of the present invention will have the following beneficial effects:

[0016] After adopting the above-mentioned bionic flying wing skeleton, when using it, first fix a parachute cloth on the outside of the back frame and the two wing vein frames, then put the inner side of the back frame against the user's back, and fix the back frame to the user through straps, shoulder straps and other accessories, and then connect the arms and legs to the transmission assembly. The user can quickly flex and extend his legs and wave his arms after jumping on the spot, and drive the two wing vein frames to flap around the hinged ends through the transmission assembly, and use the parachute cloth that swings down with the wing vein frames to push the air to generate an upward lift, and the lift acting on the wing vein frames will pass through the closed loops in turn. The lift is transmitted to the rib rod through the joint bearing and the connecting rod, thereby helping the user to take off on the spot or be lifted during gliding. In this process, since the connecting rod itself is made of carbon fiber, its light weight can reduce the overall weight of the user, and its strength is 3 times that of titanium alloy and 5 times that of aluminum alloy. It can stably transmit the lift to the rib rod. The rib rod itself is made of tough plastic, which can help the connecting rod buffer the stress of the hinge end through a certain deformation, thereby effectively dispersing the load at the hinge end of the back frame and the wing vein frame, avoiding excessive local stress at the hinge part, preventing breakage at the hinge part, and improving safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] in:

[0019] Figure 1 It is a three-dimensional diagram of the present invention at an upward viewing angle;

[0020] Figure 2 It is a three-dimensional diagram of the present invention from a top view;

[0021] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0022] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0023] Figure 5 is a top view of the back frame of the present invention;

[0024] Figure 6 The figure is a schematic diagram of a folded state of an embodiment of the present invention.

[0025] In the figure: 1, rib rod; 11, left half part; 12, middle rod; 13, side rod; 14, back branch; 2, ridge rod; 3, connecting rod; 4, spherical plain bearing; 5, wing stem; 51, short rod; 52, plastic connecting piece; 53, plastic limiting piece; 54, notch; 55, limiting hole; 6, wing branch; 7, grip rod; 8, first push-pull rod; 9, second push-pull rod; 10, boosting rod. Detailed implementation manners

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of this invention and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this invention or the above drawings are used to distinguish different objects and not to describe a specific order.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present invention. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] To enable those skilled in the technical field to better understand the solution of this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] As Figure 1-6As shown in the figure, a bionic flying wing skeleton includes a back frame, two wing vein frames, and two transmission components. The back frame includes several rib rods 1 arranged in parallel, at least one spine rod 2 vertically connecting the middle parts of each rib rod 1, and two connecting rods 3 symmetrically arranged at both ends of the rib rods 1. The ends of the rib rods 1 are vertically sleeved on the corresponding connecting rods 3. Among them, the rib rods 1 are made of plastic material, which can be high-toughness ABS plastic or nylon plastic, and the connecting rods 3 are made of carbon fiber. The two wing vein frames are symmetrically arranged on both sides of the back frame. The roots of the wing vein frames are hinged to the corresponding connecting rods 3 through joint bearings 4 to endow the roots of the wing vein frames with a certain degree of freedom, further imitating birds and increasing the flexibility of the flapping wing movement within a certain range. The two transmission components are respectively connected to the inner sides of the two wing vein frames. The transmission components are configured to connect the human arms and legs to drive the wing vein frames to flap around the hinge end through the flexion, extension, and swinging movements of the limbs. When in use, first fix a parachute cloth on the outer sides of the back frame and the two wing vein frames, then abut the inner side of the back frame against the user's back, and fix the back frame on the user's body through accessories such as straps and braces. For example, two braces are fixedly connected to the inner side of the back frame, and a closed wearing position is formed between the braces and the inner side of the back frame. The user puts the two arms into the wearing position respectively, so as to carry the bionic flying wing skeleton on the back through the braces. An anti-detachment strap can also be connected between the braces. The anti-detachment strap is connected between the braces through a quick-release structure such as a buckle for easy removal of the bionic flying wing skeleton. Then connect the arms and legs to the transmission components. The user can quickly flex and extend the legs and wave the arms after taking off from the ground. The two wing vein frames are driven to flap around the hinge end through the transmission components. The parachute cloth that swings down with the wing vein frames is used to push the air to generate an upward lift force. The lift force acting on the wing vein frames will be transmitted to the rib rods 1 through the joint bearings 4 and the connecting rods 3 in sequence, and finally drive the user through the braces, thereby helping the user take off from the ground or lift during gliding. During this process, since the connecting rods 3 are made of carbon fiber material themselves, their light weight can reduce the overall load of the user, and their strength is 3 times that of titanium alloy and 5 times that of aluminum alloy, which can stably transmit the lift force to the rib rods 1. And the rib rods 1 are made of ductile plastic material themselves, which can help the connecting rods 3 buffer the stress at the hinge end through a certain deformation, so as to effectively disperse the load at the hinge end of the back frame and the wing vein frames, avoid excessive local stress at the hinge part, prevent the hinge part from breaking, and improve the safety of use.

[0030] Refer to the attached Figure 6 As shown in the figure, further, the rib rod 1 includes a left half part 11 and a right half part. One ends of the left half part 11 and the right half part overlap and are hinged to each other in the distribution direction of the rib rod 1. Before assembly and use, the left half part 11 and the right half part can be flipped and folded around the hinge end to reduce the occupation of storage space. After unfolding, the hinge end of the two can be fixed by pins or screws (not shown in the attached figure).

[0031] Furthermore, the left half 11 includes a middle rod 12 and side rods 13. The side rods 13 are detachably connected to the left end of the middle rod 12. The right half is centrosymmetric with the left half 11. The right end of the middle rod 12 of the left half 11 overlaps and is hinged to the left end of the middle rod 12 of the right half in the distribution direction of the rib rods 1, and the hinged ends of the two are fixed by pins or screws (not shown in the drawings). The connecting rods 3 are vertically sleeved through one end of each side rod 13 away from the corresponding middle rod 12 one by one. One end of the side rod 13 overlaps with one end of the middle rod 12 and is fixedly connected by a pin or a screw (not shown in the drawings). When transportation is needed or when it is not in use, the side rods 13 can be detached from the middle rod 12 so as to disassemble and stack the rib rods 1, reducing the requirement for storage space of the rib rods 1 for storage and transportation.

[0032] Furthermore, the wing vein framework includes a plurality of wing shafts 5 and a plurality of wing branches 6. The plurality of wing shafts 5 are evenly distributed along the length direction of the connecting rod 3. One end of each wing shaft 5 is vertically hinged to the corresponding position of the connecting rod 3 through a spherical plain bearing 4. The plurality of wing branches 6 are evenly distributed along the length direction of the wing shafts 5 and are strung through a plurality of wing shafts 5. Among them, both the wing shafts 5 and the wing branches 6 are made of carbon fiber material, which can minimize the weight of the wing vein framework while ensuring the overall strength of the wing vein framework. When in use, the parachute cloth can be fixedly laid along the length direction of the bionic flying wing skeleton on the outside of the wing vein framework and the back framework. The parachute cloth is supported by the wing branches 6 to keep it taut, so that the "wing" composed of the wing vein framework and the parachute cloth is more in line with fluid mechanics, improving the aerodynamic efficiency when it flaps, reducing the burden on the user's flapping wings, and making it easier for the user to obtain lift through flapping wings and thus overcome gravity for flight.

[0033] Furthermore, the back framework further includes a plurality of back branches 14 made of carbon fiber material. The plurality of back branches 14 are evenly distributed along the length direction of the rib rods 1 and are vertically strung through a plurality of rib rods 1. When in use, the back branches 14 can tension the part of the parachute cloth located outside the back framework, and the carbon fiber material back branches 14 can enhance the structural strength of the rib rods 1 and also improve the overall anti-torsion ability of the back framework, better adapting to the use environment where the force direction is uncertain during flapping flight.

[0034] Furthermore, the wing shaft 5 is composed of a plurality of short rods 51 connected end to end in sequence. Plastic connectors 52 are provided at both ends of each short rod 51. The adjacent plastic connectors 52 are hinged to each other and are limited and fixed coaxially or nearly coaxially by pins or screws (not shown in the drawings). When transportation is needed or when it is not in use, the pins or screws between the plastic connectors 52 can be removed, and then the short rods 51 can be folded one by one around the hinged ends for the storage of the wing shaft 5.

[0035] Refer to the attached Figure 6As shown, in one embodiment, the plastic connector 52 is a hinge ear, and the orientations of two adjacent groups of hinge ears are opposite and are alternately arranged along the length direction of the wing stem 5, so that the short rods 51 are flipped and folded one by one through the hinge ears and finally stacked together, making the storage of the wing stem 5 more regular.

[0036] Further, a plurality of plastic limiters 53 are evenly distributed on the wing stem 5 along its length direction. Each part of the wing branch 6 is detachably connected to each wing stem 5 through the plastic limiter 53. In this embodiment, the plastic limiter 53 is arranged on the outer side of the wing stem 5, and one end of it is fixedly sleeved on the wing stem 5. A notch 54 is formed at the other end of the plastic limiter 53 along the distribution direction of the wing stem 5. A limiting hole 55 penetrating through the inner walls on both sides of the notch 54 is formed at the end of the plastic limiter 53. During assembly, first, each part of the wing branch 6 is nested in the corresponding notch 54, and then a screw is screwed into the limiting hole 55. By the screw pressing against the side wall of the wing branch 6, the wing branch 6 is restricted from separating from the notch 54, and the wing branch 6 is fixed on the plastic limiter 53.

[0037] Specifically, the plastic connector 52 and the plastic limiter 53 can be made of high-toughness ABS plastic or nylon plastic.

[0038] Further, the transmission assembly includes a grip rod 7 and two first push-pull rods 8. The two first push-pull rods 8 are respectively fixedly connected to both ends of the grip rod 7 and are arranged in parallel. The end of the first push-pull rod 8 far from the grip rod 7 is fixedly connected to the inner side of the wing vein frame, so that the user can perform rigid transmission through the grip rod 7, the first push-pull rod 8 and the wing vein frame, making the flapping motion more powerful.

[0039] Further, the transmission assembly further includes a second push-pull rod 9. One end of the second push-pull rod 9 is movably connected to the corresponding grip rod 7 through a ball joint bearing. A foot sleeve is movably connected to the other end of the second push-pull rod 9. The foot sleeve and the second push-pull rod 9 can also be movably connected through a ball joint bearing (not shown in the drawings). The foot sleeve can be a wide cloth strip. Both ends of the cloth strip are fixedly connected to the end of the second push-pull rod 9 to form an annular wearing cavity. During use, the user's foot is worn in the wearing cavity, so as to drive the second push-pull rod 9 through the cloth strip. Taking the second push-pull rod 9 and the grip rod 7 as an example, the ball joint bearing includes a ball seat and a ball socket. The ball seat is fixedly arranged on the grip rod 7, the ball head is fixedly arranged at the end of the second push-pull rod 9 far from the foot sleeve, and the ball head is nested in the ball socket of the ball seat. The pitching angle of the ball joint bearing is within 90 degrees to prevent the second push-pull rod 9 from over-swinging, and to ensure that the pushing and pulling force can be accurately transmitted to the grip rod 7 while taking into account a certain degree of freedom.

[0040] Furthermore, the transmission assembly further includes two assist rods 10. The two assist rods 10 are respectively fixedly connected to both ends of the grip rod 7 and are arranged in parallel. The end of the assist rod 10 away from the grip rod 7 is fixedly connected to the inner side of the vein frame. The axis of the assist rod 10 is arranged at an angle to the axis of the adjacent first push-pull rod 8. In this embodiment, it is preferably 90 degrees, so as to increase the force application points of the vein frame through the assist rod 10, so that the force of the user's arm acts on the vein frame away from the back frame, making the overall force on the vein frame more uniform, thereby improving the followability of the vein frame when the arm swings, and making the flapping action more powerful.

[0041] In this embodiment, during use, first put the sole of the foot into the corresponding foot sleeve and fix it through a buckle or a strap. Then hold the grip rod 7 on the corresponding side respectively. Then, after taking off from the ground, repeatedly bend and stretch the legs and wave the arms. When the legs and the arms retract together, the thrust applied by the legs to the second push-pull rod 9 will be transmitted to the grip rod 7 and act on the first push-pull rod 8 together with the pulling force applied by the arms to the grip rod 7, so that the first push-pull rod 8 pushes the vein frame to lift and open around the hinge end. When the legs and the arms extend together, the pulling force applied by the legs to the second push-pull rod 9 will also be transmitted to the grip rod 7 and act on the first push-pull rod 8 together with the pushing force applied by the arms to the grip rod 7, so that the first push-pull rod 8 pulls the vein frame to flap downward around the hinge end. The hands and feet work together to reduce the difficulty of driving the vein frame to flap and improve the flapping efficiency. During this process, the grip rod 7 and the second push-pull rod 9 will perform adaptive relative movement through a spherical joint bearing to adapt to the user's limb movements, avoid the rigid transmission of the transmission assembly, improve the flexibility of the transmission, and enhance the use experience.

[0042] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The drawings show the preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields shall be similarly within the scope of the patent protection of the present invention.

Claims

1. A bionic flying wing skeleton, characterized in that, Comprising: A back frame, including a plurality of rib rods arranged in parallel, at least one ridge rod vertically connecting the middle parts of the rib rods, and two connecting rods symmetrically arranged at both ends of the rib rods. The ends of the rib rods are vertically sleeved on the corresponding connecting rods. Among them, the rib rods are made of plastic material, and the connecting rods are made of carbon fiber material; Two vein frames, symmetrically arranged on both sides of the back frame. The roots of the vein frames are respectively hinged to the corresponding connecting rods through joint bearings; Two transmission components, respectively connected to the inner sides of the two vein frames. The transmission components are configured to be connected to the human arms and legs to drive the vein frames to flap around the hinge ends through the flexion, extension and swinging movements of the limbs.

2. The bionic flight wing skeleton according to claim 1, characterized in that, The rib rod includes a left half and a right half. One ends of the left half and the right half overlap and are hinged to each other in the distribution direction of the rib rod, and the hinge ends of the two are fixed by pins or screws.

3. The bionic flight wing skeleton according to claim 2, characterized in that, The left half includes a middle rod and a side rod. The side rod is detachably connected to the left end of the middle rod. The right half is centrosymmetric with the left half. The right end of the middle rod of the left half and the left end of the middle rod of the right half overlap and are hinged to each other in the distribution direction of the rib rod, and the hinge ends of the two are fixed by pins or screws. The connecting rods vertically pass through the ends of the side rods far from the corresponding middle rods one by one.

4. The bionic flight wing skeleton according to claim 1, wherein, The vein frame includes a plurality of vein shafts and a plurality of vein branches; A plurality of the vein shafts are evenly distributed along the length direction of the connecting rod. One ends of the vein shafts are respectively hinged to the corresponding positions of the connecting rod through joint bearings. A plurality of the vein branches are evenly distributed along the length direction of the vein shafts and connect a plurality of vein shafts in series. Among them, the vein shafts and the vein branches are both made of carbon fiber material.

5. The bionic flight wing skeleton according to claim 4, characterized in that, The back frame further includes a plurality of back branches made of carbon fiber material. The plurality of back branches are evenly distributed along the length direction of the rib rods and vertically connect a plurality of rib rods.

6. The bionic flight wing skeleton according to claim 4, characterized in that The vein shaft is formed by sequentially connecting a plurality of short rods end to end. Plastic connectors are provided at both ends of each short rod. The adjacent plastic connectors are hinged to each other and are limited and fixed coaxially or approximately coaxially by pins or screws.

7. A bionic flight wing skeleton according to claim 4, characterized in that, A plurality of plastic limit members are evenly distributed along the length direction of the vein shaft. Each part of the vein branch is detachably connected to each vein shaft through the plastic limit member.

8. The bionic flight wing skeleton according to claim 1, characterized in that, The transmission component includes a grip rod and two first push-pull rods. The two first push-pull rods are respectively fixedly connected to both ends of the grip rod and are arranged parallel to each other. The end of the first push-pull rod far from the grip rod is fixedly connected to the inner side of the vein frame.

9. The bionic flight wing skeleton according to claim 8, characterized in that, The transmission component further includes a second push-pull rod. One end of the second push-pull rod is movably connected to the corresponding grip rod through a ball joint bearing, and the other end of the second push-pull rod is movably connected with a foot sleeve.

10. A bionic flight wing skeleton according to claim 8, characterized in that, The transmission component further includes two assisting rods. The two assisting rods are respectively fixedly connected to both ends of the grip rod and are arranged parallel to each other. The end of the assisting rod far from the grip rod is fixedly connected to the inner side of the vein frame, and the axis of the assisting rod forms an angle with the axis of the adjacent first push-pull rod.

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