Three-degree-of-freedom swinging flapping-wing unmanned aerial vehicle fixing showing stand

Abstract

The utility model provides a three-degree-of-freedom swinging flapping-wing unmanned aerial vehicle fixed showing stand which comprises a fixed support, a clamp base, a pitching movable assembly, a pitching adjusting assembly, a swinging adjusting assembly and a rotation adjusting assembly, and a clamping groove for clamping a flapping-wing unmanned aerial vehicle is formed in the top of the clamp base; the pitching movable assembly is fixedly connected with the bottom of the clamp base. The fixed part of the rotation adjusting assembly is fixedly connected with the top end of the fixed support. The pitching movable assembly swings around a first axis in a pitching mode relative to the pitching adjusting assembly, the pitching adjusting assembly swings around a second axis in a deflection mode relative to the swing adjusting assembly, the swing adjusting assembly rotates around a third axis relative to the fixed support, and the first axis, the second axis and the third axis are perpendicular to one another in a pairwise mode. According to the fixed showing stand, posture adjustment of the flapping-wing unmanned aerial vehicle in the three-degree-of-freedom direction can be achieved, and the technical effects of improving reliability, reducing manufacturing cost and being convenient to maintain can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a fixed display stand for a three-degree-of-freedom swing-wing UAV. Background Technology

[0002] Compared to fixed-wing and rotary-wing UAVs, flapping-wing UAVs have advantages such as high efficiency, agility, and stealth. They can perform tasks such as large-scale reconnaissance and detection, security inspection, and post-disaster search and rescue. They can be widely used in the military field and also have great application prospects in civilian fields such as agriculture and forestry.

[0003] When a flapping-wing drone flaps its wings, its center of gravity rises and falls with the flapping motion, resulting in significant hand wobbling and hindering observation of the flapping movement. Traditional fixed devices cannot adjust the drone's attitude angle when fixing it, locking it in a fixed posture, which is not conducive to multi-angle observation. Furthermore, the swing platforms used for flapping-wing drones are all electrically controlled structures, such as motor-gear type and electric telescopic rod type, which have low reliability, high manufacturing cost, and are inconvenient to maintain.

[0004] In other words, how to provide a fixed display stand for flapping-wing UAVs with three degrees of freedom to observe the various attitude angles of flapping-wing UAVs under simulated actual flight conditions, so as to improve reliability and reduce manufacturing costs, is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] To address the aforementioned problems, this utility model aims to provide a fixed display stand for flapping-wing drones with three degrees of freedom, thereby solving at least one of the above-mentioned technical problems.

[0006] This utility model provides a fixed display stand for a three-degree-of-freedom swinging flapping-wing UAV, the fixed display stand comprising:

[0007] The clamp base has a snap-fit ​​groove on its top for snapping the flapping-wing UAV.

[0008] A pitch control assembly, which is fixedly connected to the bottom of the clamp base;

[0009] A pitch adjustment assembly, wherein the pitch adjustment assembly is movably connected to the pitch movement assembly;

[0010] A yaw adjustment component, which is movably connected to a pitch adjustment component;

[0011] A rotating adjustment assembly and a fixed bracket, wherein the rotating part of the rotating adjustment assembly is fixedly connected to the rocking adjustment assembly, and the fixed part of the rotating adjustment assembly is fixedly connected to the top end of the fixed bracket;

[0012] The pitch adjustment component swings about a first axis relative to the pitch adjustment component, the pitch adjustment component deflects about a second axis relative to the yaw adjustment component, and the yaw adjustment component rotates about a third axis relative to the fixed bracket. The first axis, the second axis, and the third axis are all perpendicular to each other.

[0013] Preferably, the pitch motion component includes:

[0014] A clamp connector, the top of which is fixedly connected to the bottom of the clamp base;

[0015] A pair of straight connecting pieces, the upper half of each pair of straight connecting pieces is fixedly connected to the clamp connecting piece, the pair of straight connecting pieces are symmetrically distributed on both sides of the clamp connecting piece, and the lower half of each straight connecting piece is provided with an inner circular hole and an outer circular hole spaced apart along the length direction.

[0016] A metal connector is located below the clamp connector and is fixedly connected to the pitch adjustment assembly. The metal connector has protrusions on both sides, and a pair of protrusions are respectively inserted into an inner circular hole. A pair of straight plate connectors are movably connected to the pitch adjustment assembly.

[0017] Preferably, the clamp connector includes a top plate and a bottom rod, the top plate and the bottom rod are connected to form a T-shaped structure, the top plate is fixedly connected to the bottom of the clamp base, the bottom rod is fixedly connected between a pair of straight plate connectors, and the end of the bottom rod away from the top plate abuts against the metal connector.

[0018] Preferably, the pitch adjustment assembly includes:

[0019] A pitch oscillating component, comprising a semicircular plate and a protrusion, the protrusion being fixed to the middle part of the arc surface of the semicircular plate, an installation groove being provided at the center of the semicircular plate, and a first arc groove being provided on the semicircular plate, the metal connector being fixedly installed in the installation groove, and the protrusion being movably connected to the oscillation adjustment assembly.

[0020] The pitch angle fixing screw has one end passing through one of the outer circular holes, the first arc-shaped groove and another outer circular hole in sequence before being threaded into the fastening nut.

[0021] Preferably, the rocking adjustment assembly includes:

[0022] A platform base, which is fixedly connected to the rotating part of the rotation adjustment assembly;

[0023] A swing platform is fixed to a platform base. A semi-circular slot is provided on the top of the swing platform. A groove extends into the swing platform from the semi-circular slot. A second arc-shaped groove is provided through each side of the swing platform. The groove is connected to the second arc-shaped groove. The protrusion is located in the groove.

[0024] A pair of columns are fixed to the platform base and distributed on both sides of the second arc-shaped groove, and a through hole is provided at the top of the pair of columns;

[0025] A roll angle fixing screw, one end of which passes sequentially through one of the second arc-shaped grooves, the protrusion and another second arc-shaped groove, and is threadedly connected to a fastening nut;

[0026] A rotating shaft, one end of which passes sequentially through one of the columns, the pitch oscillator, and the other column and is rotatably connected to the pitch oscillator.

[0027] Preferably, the rotation adjustment assembly includes:

[0028] A bearing mounting base is fixedly connected to the top end of the fixed bracket, and a third arc-shaped groove is provided through the edge of the bearing mounting base in the vertical direction.

[0029] A turntable bearing, wherein the outer ring of the turntable bearing is fixed to the top of the bearing mounting seat, and the inner ring of the turntable bearing is fixedly connected to the bottom of the rocking adjustment assembly;

[0030] A yaw angle fixing screw, one end of which passes through the platform base and the third arc-shaped groove in sequence and is threadedly connected to a fastening nut.

[0031] Preferably, the rotation adjustment assembly further includes:

[0032] A bushing, which is fitted onto the portion of the yaw angle fixing screw located between the rocking adjustment assembly and the bearing mounting seat.

[0033] Preferably, the height of the bushing corresponds to the height of the turntable bearing.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] Specifically, this utility model provides a three-degree-of-freedom swing-type flapping-wing UAV fixed display stand, including a fixed bracket, a clamp base, a pitch movable component, a pitch adjustment component, a swing adjustment component, and a rotation adjustment component. The top of the clamp base is provided with a locking groove for securing the flapping-wing UAV. The pitch movable component is fixedly connected to the bottom of the clamp base. The pitch adjustment component is movably connected to the pitch movable component. The swing adjustment component is movably connected to the pitch adjustment component. The rotating part of the rotation adjustment component is fixedly connected to the bottom of the swing adjustment component, and the fixed part of the rotation adjustment component is fixedly connected to the top of the fixed bracket. The pitch movable component swings relative to the pitch adjustment component about a first axis, the pitch adjustment component swings relative to the swing adjustment component about a second axis, and the swing adjustment component rotates relative to the fixed bracket about a third axis. The first axis, the second axis, and the third axis are all perpendicular to each other. The fixed display stand provided in this application can realize the attitude adjustment of flapping-wing UAV in three degrees of freedom. Based on the mechanical structure, it realizes the observation of various attitude angles of flapping-wing UAV under simulated actual flight conditions. The purely mechanical structure can achieve the technical effects of improving reliability, reducing manufacturing costs, and facilitating maintenance.

[0036] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure of the fixed display rack in the embodiments of this application;

[0039] Figure 2 This is an exploded view of the fixed display rack in an embodiment of this application;

[0040] Figure 3 This is a partial exploded structural diagram of the fixed display rack in an embodiment of this application;

[0041] Figure 4 This is a schematic diagram of the pitch and oscillation component in the embodiments of this application;

[0042] Figure 5This is a schematic diagram of the structure of the metal connector in the embodiments of this application;

[0043] Figure 6 This is a partial structural diagram of the swing adjustment component in an embodiment of this application.

[0044] Figure label:

[0045] 1. Flapping-wing unmanned aerial vehicles (UAVs);

[0046] 2. Fixture base;

[0047] 21. Snap-on slot;

[0048] 3. Pitch motion component;

[0049] 31. Fixture connectors;

[0050] 311. Top slab;

[0051] 312. Base rod;

[0052] 32. Straight-piece connector;

[0053] 321. Inner circular hole;

[0054] 322. Outer circular hole;

[0055] 33. Metal connectors;

[0056] 331. Convex column;

[0057] 4. Pitch adjustment assembly;

[0058] 41. Pitch-and-swing component;

[0059] 411. Semicircular plate;

[0060] 4111, Mounting slot;

[0061] 4112. First arc-shaped groove;

[0062] 412. Bump;

[0063] 42. Pitch angle fixing screw;

[0064] 5. Swing adjustment component;

[0065] 51. Platform base;

[0066] 52. Swinging platform;

[0067] 521. Semi-circular groove;

[0068] 522. Groove;

[0069] 523. Second arc-shaped groove;

[0070] 53. Column;

[0071] 531. Through hole;

[0072] 54. Roll angle fixing screw;

[0073] 55. Shaft;

[0074] 6. Rotary adjustment assembly;

[0075] 61. Bearing mounting base;

[0076] 611. Third arc-shaped groove;

[0077] 62. Turntable bearing;

[0078] 63. Yaw angle fixing screw;

[0079] 64. Bushing;

[0080] 7. Tighten the nuts;

[0081] 8. Fixed bracket;

[0082] 81. Corner code;

[0083] 82. Foot;

[0084] 83. Movable hinge;

[0085] 84. Aluminum profiles. Detailed Implementation

[0086] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art are within the scope of protection of this utility model; wherein the keyword "and / or" involved in this embodiment indicates two situations, and or. In other words, A and / or B mentioned in the embodiments of this specification indicates two situations, A and B, and A or B, describing three states of A and B. For example, A and / or B means: only A is included but not B; only B is included but not A; and A and B are included.

[0087] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.

[0088] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0089] Example 1

[0090] Please see Figure 1-3 Specifically, in this embodiment of the three-degree-of-freedom swinging flapping-wing UAV fixed display stand, the three-degree-of-freedom swinging flapping-wing UAV fixed display stand provided in this application is used to adjust and display different attitudes of the flapping-wing UAV 1. It specifically includes a clamp base 2, a pitch movable component 3, a pitch adjustment component 4, a swing adjustment component 5, a rotation adjustment component 6, and a fixed bracket 8. The top of the clamp base 2 is provided with a snap-fit ​​groove 21 for snapping the flapping-wing UAV 1; the pitch movable component 3 is fixedly connected to the bottom of the clamp base 2; the pitch adjustment component 4 is movably connected to the pitch movable component 3; the swing adjustment component 5 is movably connected to the pitch adjustment component 4; the rotating part of the rotation adjustment component 6 is fixedly connected to the bottom of the swing adjustment component 5, and the fixed part of the rotation adjustment component 6 is fixedly connected to the top of the fixed bracket 8; wherein, the pitch movable component 3 swings relative to the pitch adjustment component 4 about a first axis, the pitch adjustment component 4 swings relative to the swing adjustment component 5 about a second axis, and the swing adjustment component 5 rotates relative to the fixed bracket 8 about a third axis, and the first axis, the second axis, and the third axis are all perpendicular to each other.

[0091] Specifically, this utility model provides a three-degree-of-freedom swing-type flapping-wing UAV fixed display stand, including a fixed bracket 8, a clamp base 2, a pitch movable component 3, a pitch adjustment component 4, a swing adjustment component 5, and a rotation adjustment component 6. The top of the clamp base 2 is provided with a locking groove 21 for locking the flapping-wing UAV 1, so as to fix the flapping-wing UAV 1 through the locking groove 21; the pitch movable component 3 is fixedly connected to the bottom of the clamp base 2; the pitch adjustment component 4 is movably connected to the pitch movable component 3; the swing adjustment component 5 is movably connected to the pitch adjustment component 4; the rotating part of the rotation adjustment component 6 is fixedly connected to the bottom of the swing adjustment component 5, and the fixed part of the rotation adjustment component 6 is fixedly connected to the top of the fixed bracket 8; wherein, the pitch movable component 3 swings relative to the pitch adjustment component 4 about a first axis, the pitch adjustment component 4 swings relative to the swing adjustment component 5 about a second axis, and the swing adjustment component 5 rotates relative to the fixed bracket 8 about a third axis, and the first axis, the second axis, and the third axis are all perpendicular to each other. The fixed display stand provided in this application can realize the attitude adjustment of flapping-wing UAV in three degrees of freedom. Based on the mechanical structure, it realizes the observation of various attitude angles of flapping-wing UAV under simulated actual flight conditions. The purely mechanical structure can achieve the technical effects of improving reliability, reducing manufacturing costs, and facilitating maintenance.

[0092] The pitch adjustment component 3 oscillates relative to the pitch adjustment component 4 around a first axis to adjust the pitch angle. The pitch adjustment component 4 oscillates relative to the yaw adjustment component 5 around a second axis to adjust the roll angle. The yaw adjustment component 5 rotates relative to the fixed bracket 8 around a third axis to adjust the yaw angle. The first axis, the second axis, and the third axis are all perpendicular to each other. The first axis is the straight line containing the protrusions 331 on both sides of the metal connector 33 in the figure. The second axis is the straight line containing the pivot in the figure. Both the first and second axes are located on a horizontal plane, and the third axis is vertical, that is, a straight line perpendicular to the horizontal plane.

[0093] As one possible approach, the fixed bracket 8 may include a manual telescopic rod and a chassis, with one end of the manual telescopic rod fixedly connected to the chassis and the other end of the manual telescopic rod fixedly connected to the fixed part of the rotation adjustment assembly 6, namely the bearing fixing seat 61.

[0094] As another possible way to achieve this, such as Figure 1-3As shown, the main support of the fixed frame can also be composed of multiple corner brackets 81, feet 82, movable hinges 83, and aluminum profiles 84 of varying lengths, forming a quadruped structure. The bearing mounting base 61 is installed at the top of the main support. The bearing mounting base 61 has countersunk through holes for easy placement of screws, which are then connected and fixed to the corner brackets 81, feet 82, and aluminum profiles 84. The bearing mounting base 61 has through holes on its inner side, and the corresponding turntable bearing 62 has corresponding tapered countersunk screw mounting holes on its outer side. The turntable bearing 62 is then installed on the bearing mounting base 61 using screws and nuts. The lower end of the inner side of the turntable bearing 62 also has tapered countersunk screw mounting holes, and the corresponding platform base 51 also has through holes. The two are also fastened together using screws and nuts.

[0095] It should be noted that the clamp base 2 is formed by a mounting plate and a clamping component. The clamping component is fixed to the mounting plate and is integrally formed. The top of the clamping component has a snap-fit ​​groove 21. There are multiple through holes on both sides of the snap-fit ​​groove 21. The through holes on each side are neatly arranged in a row. The carbon fiber plate of the flapping-wing UAV is installed in the snap-fit ​​groove 21 of the clamp base 2. After it is placed in the appropriate position of the snap-fit ​​groove 21, screws are passed through the through holes that are not blocked by the fuselage and tightened with nuts. In this way, the flapping-wing UAV is fixed on the clamp base 2.

[0096] In one possible implementation, the pitch adjustment assembly 3 includes: a clamp connector 31, a pair of straight plate connectors 32, and a metal connector 33. The top of the clamp connector 31 is fixedly connected to the bottom of the clamp base 2. The upper halves of the pair of straight plate connectors 32 are fixedly connected to the clamp connector 31, and the pair of straight plate connectors 32 are symmetrically distributed on both sides of the clamp connector 31. The lower half of each straight plate connector 32 has an inner circular hole 321 and an outer circular hole 322 spaced apart along its length. The metal connector 33 is located below the clamp connector 31 and is fixedly connected to the pitch adjustment assembly 4. Figure 4 As shown, the metal connector 33 has protrusions 331 on both sides, and a pair of protrusions 331 are respectively inserted into an inner circular hole 321. A pair of straight connectors 32 are movably connected to the pitch adjustment assembly 4.

[0097] Furthermore, the clamp connector 31 includes a top plate 311 and a bottom rod 312. The top plate 311 and the bottom rod 312 are connected to form a T-shaped structure. The top plate 311 is fixedly connected to the bottom of the clamp base 2. The bottom rod 312 is fixedly connected between a pair of straight plate connectors 32. The end of the bottom rod 312 away from the top plate 311 abuts against the metal connector 33.

[0098] Furthermore, the pitch adjustment assembly 4 includes: a pitch rocker 41 and a pitch angle fixing screw 42, such as... Figure 4As shown, the pitch oscillation component 41 includes a semicircular plate 411 and a protrusion 412. The protrusion 412 is fixed to the middle part of the arc surface of the semicircular plate 411. A mounting groove 4111 is provided at the center of the semicircular plate 411. A first arc groove 4112 is also provided on the semicircular plate 411. The metal connector 33 is fixedly installed in the mounting groove 4111. The protrusion 412 is movably connected to the oscillation adjustment component 5. One end of the pitch angle fixing screw 42 passes through an outer circular hole 322, the first arc groove 4112 and another outer circular hole 322 in sequence and is threadedly connected to the fastening nut 7.

[0099] The pitch angle is the angular position of rotation around the first axis. Based on the above structure, the process of adjusting and fixing the pitch angle is as follows: The upper half of the straight plate connector 32 can also be provided with two through holes from top to bottom. These two through holes are used to fix the connector to both sides of the clamp connector 31 using screws and nuts. The inner circular hole 321 is a through hole near the upper half, which is installed on the protruding protrusions 331 on both sides of the metal connector 33. The protruding protrusions 331 on both sides of the metal connector 33 serve as the rotation center of the pitch angle. The outer circular hole 322 is a through hole away from the upper half, corresponding to the first through hole on the pitch swing member 41. The pitch angle fixing screw 42 passes through the outer circular hole 322 and then through the first arc-shaped groove 4112 on the pitch swing member 41. After adjusting to a certain angle, the nut is tightened to fix the pitch angle, thereby fixing the pitch motion component 3 in different pitch attitudes. When the pitch angle needs to be adjusted again, the nut can be loosened, and the pitch angle fixing screw 42 located in the first arc-shaped groove 4112 can be rotated around the protrusion 331 of the metal connector 33 as the rotation center, thereby adjusting the pitch angle of the flapping-wing UAV. After the adjustment is completed, the nut is tightened again to fix the pitch angle.

[0100] In one possible implementation, such as Figure 1-3 and Figure 6As shown, the rocking adjustment assembly 5 includes a platform base 51, a rocking platform 52, a pair of columns 53, a roll angle fixing screw 54, and a rotating shaft 55; the platform base 51 is fixedly connected to the rotating part of the rotation adjustment assembly 6; the rocking platform 52 is fixed on the platform base 51, and a semi-circular slot 521 is opened on the top of the rocking platform 52. A groove 522 extends from the semi-circular slot 521 into the interior of the rocking platform 52, and a second arc-shaped groove 523 is opened through each side of the rocking platform 52. The groove 522 and the second arc-shaped groove 523 are connected. A protrusion 41... 2 is located in the groove 522; a pair of columns 53 are fixed on the platform base 51 and distributed on both sides of the second arc groove 523, and the top of the pair of columns 53 is provided with a through hole 531; one end of the roll angle fixing screw 54 passes through one second arc groove 523, the protrusion 412 and the other second arc groove 523 in sequence and is threadedly connected to the fastening nut 7; one end of the rotating shaft 55 passes through one column 53, one end of the pitch swing member 41, the metal connector 33, the other end of the pitch swing member 41 and the other column 53 in sequence and is rotatably connected to the pitch swing member 41.

[0101] The roll angle is the angular position of rotation around the second axis. The specific process of adjusting and fixing the roll angle based on the above structure is as follows:

[0102] The platform base 51 has protruding columns 53 on both sides, with through holes at the top of the columns 53. The pitch oscillating component 41 is a Y-shaped structure formed by connecting a semi-circular plate 411 and a protrusion 412. The diameter portion of the semi-circular plate 411 has a first through hole along its diameter. Since the metal connector 33 is fixedly installed in the mounting groove 4111, the metal connector 33 also has a second through hole along the diameter of the semi-circular plate 411. The first and second through holes are on a straight line, allowing the rotating shaft 55 to pass through and be located within the through hole. It can be understood that the rotating shaft 55 is the rotation center of the pitch oscillating component 41. The protrusion 412 is also provided with a through hole, which corresponds to the second arc groove 523 in the middle part of the rocking platform 52. The two are fastened to the corresponding nut by the roll angle fixing screw 54. The pitch rocking component 41 rotates along the second arc groove 523 in the middle part of the rocking platform 52 with the rotating shaft 55 as the rotation center. After rotating to the preset angle, the fixing nut 7 is tightened to fix and adjust the roll angle.

[0103] Furthermore, the rotation adjustment assembly 6 includes a bearing mounting base 61, a turntable bearing 62, and a yaw angle fixing screw 63; the bearing mounting base 61 is fixedly connected to the top of the fixed bracket 8, and a third arc-shaped groove 611 is formed through the edge of the bearing mounting base 61 in the vertical direction; the outer ring of the turntable bearing 62 is fixed to the top of the bearing mounting base 61, and the inner ring of the turntable bearing 62 is fixedly connected to the bottom of the rocking adjustment assembly 5; one end of the yaw angle fixing screw 63 passes through the platform base 51 and the third arc-shaped groove 611 in sequence and is threadedly connected to the fastening nut 7, and the yaw angle fixing screw 63 is movably disposed in the third arc-shaped groove 611.

[0104] In one possible implementation, the rotation adjustment assembly 6 further includes a bushing 64, which is fitted onto the portion of the yaw angle fixing screw 63 located between the rocking adjustment assembly 5 and the bearing mounting seat 61.

[0105] Furthermore, the height of the bushing 64 corresponds to the height of the turntable bearing 62.

[0106] Specifically, a bushing 64 is fitted onto the yaw angle fixing screw 63 located between the rocking adjustment assembly 5 and the bearing mounting seat 61. This provides support between the bearing mounting seat 61 and the platform base 51, preventing deformation of the bearing mounting seat 61 and the platform base 51 when the nut at the end of the yaw angle fixing screw 63 is tightened. Two yaw angle fixing screws 63 can be used to increase stability, and two bushings 64 can be correspondingly provided.

[0107] The yaw angle is the angular position of rotation about the third axis. The specific process of adjusting and fixing the yaw angle based on the above structure is as follows:

[0108] The bearing mounting base 61 has a semi-circular third arc groove 611 at its edge. Correspondingly, the outer edge of the platform base 51 can be provided with four equidistant through holes. The yaw angle fixing screw 63 is installed on two adjacent through holes and passes through the third arc groove 611. The yaw angle fixing screw 63 passes through two adjacent through holes on the platform base 51 and then through the third arc groove 611 of the bearing mounting base 61. After the platform base 51 is adjusted to the preset angle, tighten the fastening nut 7 at the end of the yaw angle fixing screw 63 so that the fastening nut 7 abuts against the side wall of the third arc groove 611 of the bearing fixing seat 61, thereby fixing the yaw angle of the flapping-wing UAV 1. When it is necessary to adjust the yaw angle of the flapping-wing UAV 1, the fastening nut 7 at the end of the yaw angle fixing screw 63 can be loosened or tightened so that the tightened yaw angle fixing screw 63 can rotate in the third arc groove 611. When it rotates to the required angle, the fastening nut 7 can be tightened again to adjust and fix the yaw attitude.

[0109] It is understood that the first arc groove 4112, the second arc groove 523 and the third arc groove 611 can all be provided with a semi-circular groove shape, and the diameter of the fastening nut 7 is greater than the width of the groove opening of the first arc groove 4112, the second arc groove 523 and the third arc groove 611, so that tightening the nut can achieve the limiting and fixing of the corresponding screw or bolt.

[0110] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0111] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.

Claims

1. A three degree of freedom flapping ornithopter fixed display stand, characterized in that, The fixed display stand for the three-degree-of-freedom swinging flapping-wing UAV includes: The clamp base has a snap-fit ​​groove on its top for snapping onto the flapping-wing UAV; A pitch control assembly, which is fixedly connected to the bottom of the clamp base; A pitch adjustment assembly, wherein the pitch adjustment assembly is movably connected to the pitch movement assembly; A yaw adjustment component, which is movably connected to a pitch adjustment component; A rotating adjustment assembly and a fixed bracket, wherein the rotating part of the rotating adjustment assembly is fixedly connected to the rocking adjustment assembly, and the fixed part of the rotating adjustment assembly is fixedly connected to the top end of the fixed bracket; The pitch adjustment component swings about a first axis relative to the pitch adjustment component, the pitch adjustment component deflects about a second axis relative to the yaw adjustment component, and the yaw adjustment component rotates about a third axis relative to the fixed bracket. The first axis, the second axis, and the third axis are all perpendicular to each other.

2. The three-degree-of-freedom, flapping-wing ornithopter stationary display stand of claim 1, wherein, The pitch motion component includes: A clamp connector, the top of which is fixedly connected to the bottom of the clamp base; A pair of straight connecting pieces, the upper half of each pair of straight connecting pieces is fixedly connected to the clamp connecting piece, the pair of straight connecting pieces are symmetrically distributed on both sides of the clamp connecting piece, and the lower half of each straight connecting piece is provided with an inner circular hole and an outer circular hole spaced apart along the length direction. A metal connector is located below the clamp connector and is fixedly connected to the pitch adjustment assembly. The metal connector has protrusions on both sides, and a pair of protrusions are respectively inserted into an inner circular hole. A pair of straight plate connectors are movably connected to the pitch adjustment assembly.

3. The fixed display stand for a three-degree-of-freedom swinging flapping-wing UAV as described in claim 2, characterized in that: The clamp connector includes a top plate and a bottom rod, which are connected to form a T-shaped structure. The top plate is fixedly connected to the bottom of the clamp base, and the bottom rod is fixedly connected between a pair of straight plate connectors. The end of the bottom rod away from the top plate abuts against the metal connector.

4. The three-degree-of-freedom flapping ornithopter stationary display stand of claim 2, wherein, The pitch adjustment component includes: A pitch oscillating component, comprising a semicircular plate and a protrusion, the protrusion being fixedly connected to the middle part of the arc surface of the semicircular plate, an installation groove being provided at the center of the semicircular plate, and a first arc groove being provided on the semicircular plate, the metal connector being fixedly installed in the installation groove, and the protrusion being movably connected to the oscillation adjustment assembly. The pitch angle fixing screw has one end passing through one of the outer circular holes, the first arc-shaped groove and another outer circular hole in sequence before being threaded into the fastening nut.

5. The three-degree-of-freedom flapping ornithopter stationary display stand of claim 4, wherein, The swing adjustment component includes: A platform base, which is fixedly connected to the rotating part of the rotation adjustment assembly; A swing platform is fixed to a platform base. A semi-circular slot is provided on the top of the swing platform. A groove extends into the swing platform from the semi-circular slot. A second arc-shaped groove is provided through each side of the swing platform. The groove is connected to the second arc-shaped groove. The protrusion is located in the groove. A pair of columns are fixed to the platform base and distributed on both sides of the second arc-shaped groove, and a through hole is provided at the top of the pair of columns; A roll angle fixing screw, one end of which passes sequentially through one of the second arc-shaped grooves, the protrusion and another second arc-shaped groove, and is threadedly connected to a fastening nut; A rotating shaft, one end of which passes sequentially through one of the columns, the pitch oscillator, and the other column and is rotatably connected to the pitch oscillator.

6. The three-degree-of-freedom, flapping-wing ornithopter stationary display stand of claim 5, wherein, The rotation adjustment component includes: A bearing mounting base is fixedly connected to the top end of the fixed bracket, and a third arc-shaped groove is provided through the edge of the bearing mounting base in the vertical direction. A turntable bearing, wherein the outer ring of the turntable bearing is fixed to the top of the bearing mounting seat, and the inner ring of the turntable bearing is fixedly connected to the bottom of the rocking adjustment assembly; A yaw angle fixing screw, one end of which passes through the platform base and the third arc-shaped groove in sequence and is threadedly connected to a fastening nut.

7. The three-degree-of-freedom, flapping-wing ornithopter stationary display stand of claim 6, wherein, The rotation adjustment assembly further includes: A bushing, which is fitted onto the portion of the yaw angle fixing screw located between the rocking adjustment assembly and the bearing mounting seat.

8. The three-degree-of-freedom, flapping-wing ornithopter stationary display stand of claim 7, wherein, The height of the bushing corresponds to the height of the turntable bearing.

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