Scissor fork type telescopic mechanism with tail end capable of adapting to bending

Abstract

According to the scissor-fork type telescopic mechanism with the tail end capable of adapting to bending, through a discontinuous matching face between a final-stage connecting rod and a transition connecting rod and cooperation of a deformation connecting assembly installed between the transition connecting rod and the final-stage connecting rod, the purpose that the tail end of the tail-stage connecting rod is bent in the process of driving the transition connecting rod and the final-stage connecting rod to stretch is achieved; the contact state between the contact surface of the output end of the transition connecting rod and the contact surface of the input end of the final-stage connecting rod is from complete attachment to local attachment until complete separation, so that the transition connecting rod and the final-stage connecting rod have relative movement space in the longitudinal direction; it can be guaranteed that the shear fork type telescopic mechanism has the high-rigidity linear driving capacity in the stretching process of the telescopic wing, and the shear fork type telescopic mechanism can passively adapt to wing face bidirectional bending deformation after the telescopic wing stretches to the tail end.

Description

Technical Field

[0001] This invention relates to the field of aircraft structural design, and in particular to a scissor-type telescopic mechanism with an end that can adapt to bending. Background Technology

[0002] Variant aircraft enhance their trans-domain flight capabilities by altering their wing configuration during flight. A common variant utilizes telescopic mechanisms to deploy and retract their retractable wings. Based on the load characteristics during wing extension, the telescopic mechanism needs to maintain a certain vertical stiffness to ensure smooth operation along the horizontal axis. When the wing is fully extended, the increased wing area leads to a sharp increase in vertical aerodynamic loads, causing vertical bending deformation at the wingtip, which in turn affects the telescopic mechanism's tip. Therefore, a telescopic mechanism needs to be designed that maintains vertical stiffness during extension while also accommodating vertical bending deformation at the tip.

[0003] Existing technical solutions, when having a large telescoping ratio, can maintain a certain vertical stiffness during telescoping, but cannot adapt to the bending deformation of the drive end; or the drive end can adapt to vertical bending deformation, but its telescoping ratio is too small, limiting its application environment and making it difficult to apply to large-span telescoping wings. Summary of the Invention

[0004] The technical problem solved by this invention is to overcome the shortcomings of the prior art and provide a scissor-type telescopic mechanism with an end that can adapt to bending, which has the comprehensive functions of a large telescopic ratio, maintaining vertical stiffness during the extension process, and passively adapting to bending deformation at the end after extension.

[0005] The technical solution of the present invention is: a scissor-type telescopic mechanism with an adaptable bending end, installed between a fixed wing and a telescopic wing, for driving the telescopic wing to move relative to the fixed wing in a preset direction, the telescopic mechanism comprising:

[0006] Two primary connecting rods, the output ends of which are hinged to the input ends of the transition connecting rods respectively, are used to drive the two transition connecting rods;

[0007] Two transition links are hinged together at the middle, and their output ends are respectively hinged to the input ends of the final link through a deformable connection assembly; the two ends of the link body of the transition link have rotating recesses, and on the outer surface of the rotating recess at the output end of the transition link, there are a first annular boss and a second annular boss arranged opposite to each other, which are concentric with the rotating recess at the output end.

[0008] Two final-stage connecting rods, each with a rotating recess at both ends of the connecting rod body. On the outer surface of the rotating recess at the input end of the final-stage connecting rod, two annular bosses are also provided opposite to each other, with the same arrangement and shape and size as the first and second annular bosses at the output end of the transition connecting rod.

[0009] During the extension process of the drive transition link and the final link, the contact state between the annular boss at the output end of the transition link and the annular boss at the input end of the final link changes from complete contact to partial contact and finally complete separation, so that the transition link and the final link have relative movement space in the longitudinal direction; the deformable connection assembly provides connection constraints for the transition link and the final link while cooperating with the longitudinal movement between them, so that the end of the telescopic mechanism can adapt to bending deformation.

[0010] Furthermore, the deformable connection assembly includes a spherical bearing, a rotating sleeve, and a connecting assembly; the spherical bearing is installed in the rotating recess at the input end of the final stage connecting rod, and the rotating sleeve is installed in the rotating recess at the output end of the transition connecting rod; the connecting assembly is used to connect the transition connecting rod and the final stage connecting rod.

[0011] Furthermore, the spherical bearing consists of an inner ring and an outer ring, and the outer ring can rotate freely around the center of the inner ring.

[0012] Furthermore, the scissor-type telescopic mechanism also includes:

[0013] At least one extension link is provided to increase the bending deformation angle that the telescopic mechanism can accommodate at its end.

[0014] The first-level extension link includes two extension links. The extension link has a rotating recess at both ends of the link body. On the outer surface of the rotating recess at the input end and the output end of the extension link, there are respectively annular bosses. The annular bosses are arranged in the same way and have the same shape and size as the first annular boss and the second annular boss at the output end of the transition link.

[0015] The input end of the extension link is hinged to the output end of the transition link via a deformable connection assembly; the output end of the extension link is hinged to the input end of the next-stage extension link or the final-stage link via a deformable connection assembly.

[0016] Furthermore, the deformable connection assembly includes a spherical bearing, a rotating sleeve, and a connecting assembly;

[0017] A deformable connecting assembly for hinged extension link input end and transition link output end, wherein the spherical bearing is installed in the rotating recess of extension link input end and the rotating sleeve is installed in the rotating recess of transition link output end; the connecting assembly is used to connect transition link and extension link.

[0018] A deformable connecting assembly for connecting the output end of an extension link to the input end of a next-stage extension link or a final-stage link, wherein the spherical bearing is installed in the rotating recess of the input end of the next-stage extension link or the rotating recess of the input end of the final-stage link, and the rotating sleeve is installed in the rotating recess of the output end of the extension link; the connecting assembly is used to connect the extension link to the next-stage extension link or the final-stage link.

[0019] Furthermore, the four quadrants I, II, III, and IV are divided by the mutually perpendicular a-axis and b-axis; the a-axis is coaxial with the central axis of the transition link.

[0020] The first annular protrusion has an arc of 45° in quadrant I and an arc of X in quadrant II; the second annular protrusion has an arc of 45° in quadrant III and an arc of X in quadrant IV; the value of X ranges from 0° to X to 45°.

[0021] Furthermore, the first and second annular bosses have the same height and width, with height h = 0.5d, where d is the longitudinal distance between the transition link and the final link; the width b ranges from 2mm to 15mm.

[0022] Furthermore, the input ends of the two primary links are hinged to the fixed wing; the output ends of the two final links are hinged to the telescopic wing.

[0023] The present invention also relates to an aircraft wing surface, wherein the wing surface includes a scissor-type telescopic mechanism with an end that is adaptable to bending as described above.

[0024] The present invention also relates to a morphing aircraft having a scissor-type telescopic mechanism with an end that can adapt to bending, as described above, for the deployment and retraction of the wing surface, thereby changing the wing surface configuration during flight.

[0025] The advantages of this invention compared to the prior art are:

[0026] (1) The scissor telescopic mechanism with adaptable end bending proposed in this invention can ensure that the scissor telescopic mechanism has high rigidity linear driving capability during the extension of the telescopic wing through the discontinuous mating surface between the final stage connecting rod and the transition connecting rod, and can passively adapt to the bidirectional bending deformation of the wing surface after the telescopic wing extends to the end.

[0027] (2) The scissor telescopic mechanism with an end that can adapt to bending proposed in this invention can further increase the adaptable bending angle of the scissor telescopic mechanism by adding an extension link through axial extension.

[0028] (3) The scissor telescopic mechanism with adaptable bending end proposed in this invention has a simple composition, high storage rate, and a maximum telescopic ratio range of 5 to 8. Without the addition of extension links, the maximum adaptable bending angle can reach ±8°; with the addition of extension links, the maximum adaptable bending angle can reach ±15° or more.

[0029] (4) The scissor telescopic mechanism with an end that can adapt to bending proposed in this invention has a small Y-axis size and can be flexibly selected in terms of installation height from 50mm to 150mm. It has the performance advantages of low processing cost and light weight.

[0030] (5) The scissor telescopic mechanism with bendable end proposed in this invention is connected to the aircraft wing surface at only two ends. It has a simple installation method, good assemblability, and can save installation space and assembly time. Attached Figure Description

[0031] Figure 1 This is an assembly drawing of the scissor-type telescopic mechanism of the present invention;

[0032] Figure 2 This is a schematic diagram of the fixed-wing structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the telescopic wing structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the fixed wing and telescopic wing of the present invention.

[0035] Figure 5 This is a diagram showing the components of the scissor-type telescopic mechanism of the present invention;

[0036] Figure 6 This is a diagram of the primary connecting rod assembly of the present invention;

[0037] Figure 7 This is a diagram showing the composition of the transition link of the present invention;

[0038] Figure 8 This is a schematic diagram showing the position of the rotating boss in this invention;

[0039] Figure 9 This is a diagram of the final stage connecting rod of the present invention;

[0040] Figure 10 This is a schematic diagram of the scissor-type telescopic mechanism and the fixed wing of the present invention.

[0041] Figure 11 This is a schematic diagram of the installation of the scissor-type telescopic mechanism and telescopic wing of the present invention;

[0042] Figure 12 This is a schematic diagram of the installation of the transition connection component of the present invention;

[0043] Figure 13This is a schematic diagram of the installation of the deformable connection assembly of the present invention;

[0044] Figure 14 This is a schematic diagram illustrating the initial state of the invention's adaptation to bending deformation.

[0045] Figure 15 This is a schematic diagram illustrating the state of the present invention during the bending deformation and rotation process.

[0046] Figure 16 This is a schematic diagram of the bendable state of the present invention under bending deformation;

[0047] Figure 17 This is a schematic diagram of the scissor-type telescopic mechanism of the present invention in a positive Y-direction bending deformation state.

[0048] Figure 18 This is a schematic diagram of the scissor-type telescopic mechanism of the present invention in a negative Y-direction bending deformation state.

[0049] Figure 19 This is an extended connecting rod assembly diagram of the present invention;

[0050] Figure 20 A schematic diagram of the bending deformation state after adding two extension links to the present invention. Detailed Implementation

[0051] To better understand the technical solution of the present invention, the specific embodiments of the present invention are described below.

[0052] The scissor-type telescopic mechanism of the present invention is composed of a multi-stage linkage assembly connected in series. For ease of description, this embodiment first uses a scissor-type telescopic mechanism composed of two-stage linkages as an example. The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0053] As attached Figure 1 As shown, the present invention proposes a scissor-type telescopic mechanism 3, which is installed between the fixed wing 1 and the telescopic wing 2.

[0054] As attached Figure 2 As shown, the fixed wing 1 of the present invention includes a fixed mounting base 1-1 and a movable inner cavity 1-2, etc. The fixed mounting base 1-1 is arranged at the end of the fixed wing 1, and the fixed mounting base 1-1 is provided with mounting holes 1-1-1.

[0055] As attached Figure 3 As shown, the telescopic wing 2 of the present invention has a drive mounting seat 2-2 arranged on the end rib 2-1, and a mounting hole 2-2-1 arranged on the drive mounting seat 2-2.

[0056] As attached Figure 4As shown, the telescopic wing 2 extends and retracts within the fixed wing 1 along the symmetry centerline m of the wing surface under the drive of the scissor-type telescopic mechanism 3. The fixed mounting base 1-1 and the driving mounting base 2-2 are on the same horizontal line n. In this invention, the longitudinal direction of the wing surface is defined as the Y-direction, which is at 90° with the symmetry centerline m.

[0057] As attached Figure 5 As shown, the scissor-type telescopic mechanism 3 includes a primary connecting rod 3-1, a transition connecting rod 3-2, a final connecting rod 3-3, a fixed connecting assembly 3-4, a drive connecting assembly 3-5, a transition connecting assembly 3-6, and a deformable connecting assembly 3-7. Each connecting rod is arranged alternately, with a vertical spacing of d between them. The value of d generally ranges from 1mm to 50mm, depending on the installation space, connecting rod thickness, and load-bearing capacity. The thickness of all connecting rods is set to R, and all outer edges of the connecting rods are rounded with a radius of 0.5R to ensure that the outer edges of the connecting rods are all in a rounded state, preventing the scissor-type telescopic mechanism from rubbing against other structures during movement and causing jamming.

[0058] As attached Figure 6 As shown, the primary connecting rod 3-1 consists of a connecting rod body 3-1-1 and a rotating recess 3-1-2. Two rotating recesses 3-1-2 of the same shape and size are arranged on the central axis of the connecting rod body 3-1-1, at both ends.

[0059] As attached Figure 7 As shown, the transition link 3-2 includes a link body 3-2-1, a rotating recess 3-2-2, and a rotating boss 3-2-3. Three rotating recesses 3-2-2 of identical shape and size are arranged on the central axis of the link body 3-2-1, one centrally located and the other two at either end. On the side that mates with the final stage link 3-3, a rotating boss 3-2-3 is arranged along the outer surface of the rotating recess 3-2-2.

[0060] As attached Figure 8As shown, the rotating boss 3-2-3 consists of two identical annular bosses, a first annular boss 3-2-3-1 and a second annular boss 3-2-3-2. The rotating boss 3-2-3 shares a common center with the rotating recess 3-2-2, and is located 2mm to 5mm from the outer arc of the recess 3-2-2. The height of the first annular boss 3-2-3-1 is h (generally 0.5d), and its width is b. The width b is generally 2mm to 15mm, and is related to the vertical load-bearing capacity of the mechanism; the greater the required vertical load-bearing capacity, the greater the width b needs to be. The four quadrants (I, II, III, and IV) are divided by mutually perpendicular axes a and b. The a-axis is coaxial with the central axis of the transition link. The arc of the first annular boss 3-2-3-1 in quadrant I is 45°, and the arc in quadrant II is X. X is related to the travel of the scissor-type telescopic mechanism, and is generally 0° ≤ X ≤ 45°. The second annular boss 3-2-3-2 has an arc of 45° in quadrant III and an arc of X in quadrant IV. X is related to the travel of the scissor telescopic mechanism and is generally taken as 0°≤X≤45°.

[0061] As attached Figure 9 As shown, the final stage connecting rod 3-3 comprises a connecting rod body 3-3-1, a rotating recess 3-3-2, and a rotating boss 3-3-3. Two rotating recesses 3-3-2 of identical shape and size are arranged on the central axis of the connecting rod body 3-3-1, at both ends. On the side that mates with the transition connecting rod 3-2, a rotating boss 3-3-3 is arranged along the outer surface of the rotating recess 3-3-2. The arrangement, shape, and size of the rotating boss 3-3-3 are exactly the same as those of the rotating boss 3-2-3.

[0062] As attached Figure 10 As shown, the scissor-type telescopic mechanism 3 and the fixed wing 1 are installed via a fixed connection assembly 3-4. The installation method is as follows: a rotating sleeve 3-4-2 is installed inside the rotating recess 3-1-2 of the primary connecting rod 3-1. The connecting pin 3-4-1 passes sequentially through the fixed mounting base 1-1, the upper primary connecting rod, the rotating sleeve 3-4-2, the support sleeve 3-4-3, the rotating sleeve 3-4-2, the lower primary connecting rod, the end cap gasket 3-4-4, and the spring washer 3-4-5. By tightening the hexagonal nut 3-4-6, the connection and installation of the scissor-type telescopic mechanism 3 and the fixed wing 1 are achieved.

[0063] As attached Figure 11As shown, the scissor-type telescopic mechanism 3 and the telescopic wing 2 are installed via a drive connection assembly 3-5. The installation method is as follows: a rotating sleeve 3-4-2 is installed inside the rotating recess 3-3-2 of the final stage connecting rod 3-3. The connecting pin 3-4-1 passes sequentially through the drive mounting seat 2-2, the upper final stage connecting rod 3-3, the rotating sleeve 3-4-2, the support sleeve 3-4-3, the rotating sleeve 3-4-2, the lower final stage connecting rod 3-3, the end cap gasket 3-4-4, and the spring washer 3-4-5. By tightening the hexagonal nut 3-4-6, the connection and installation of the scissor-type telescopic mechanism 3 and the telescopic wing 2 are achieved.

[0064] As attached Figure 12 As shown, the transition connection assembly 3-6 is used for connecting the primary connecting rod 3-1 and the transition connecting rod 3-2, as well as the connection between the upper and lower center points of the transition connecting rod 3-2. The following description uses the connection between the primary connecting rod 3-1 and the transition connecting rod 3-2 as an example. Rotating sleeves 3-4-2 are installed in the rotating recesses of both the primary connecting rod 3-1 and the transition connecting rod 3-2. The connecting pin 3-4-1 passes sequentially through the primary connecting rod 3-1, the rotating sleeve 3-4-2, the support sleeve 3-4-3, the rotating sleeve 3-4-2, the transition connecting rod 3-2, the end cap gasket 3-4-4, and the spring washer 3-4-5. Tightening the hexagonal nut 3-4-6 completes the connection between the primary connecting rod 3-1 and the transition connecting rod 3-2.

[0065] As attached Figure 13 As shown, the deformable connecting assembly 3-7 is used to connect the final stage connecting rod 3-3 and the transition connecting rod 3-2, enabling the end of the scissor-type telescopic mechanism to adapt to bending deformation. The deformable connecting assembly 3-7 includes a connecting pin 3-4-1, a spherical bearing 3-4-8, a limiting sleeve 3-4-7, a rotating sleeve 3-4-2, an end cap gasket 3-4-4, a spring washer 3-4-5, and a tightening hexagonal nut 3-4-6. The spherical bearing 3-4-8 is installed in the rotating recess of the final stage connecting rod 3-3. The spherical bearing 3-4-8 consists of an inner bearing ring 3-4-8-1 and an outer bearing ring 3-4-8-2. The outer bearing ring 3-4-8-2 can rotate freely around the center O of the inner bearing ring 3-4-8-1. The rotating sleeve 3-4-2 is installed in the rotating recess of the transition connecting rod 3-2. Connecting pin 3-4-1 passes sequentially through the final stage connecting rod 3-3, the spherical bearing 3-4-8, the limiting sleeve 3-4-7, the rotating sleeve 3-4-2, the transition connecting rod 3-2, the end cover gasket 3-4-4, and the spring washer 3-4-5. Tightening the hexagonal nut 3-4-6 completes the connection between the final stage connecting rod 3-3 and the transition connecting rod 3-2. The end of the scissor-type telescopic mechanism adapts to bending deformation by having the final stage connecting rod 3-3 drive the outer ring of the bearing 3-4-8-2 to rotate relative to the center O of the ball.

[0066] As attached Figure 14As shown, the scissor-type telescopic mechanism's adaptive bending deformation structure is in its initial state. The two rotating bosses 3-2-3 of the transition link 3-2 and the two rotating bosses 3-3-3 of the final link 3-3 are in complete contact. At this time, the minimum distance between the transition link 3-2 and the final link 3-3 is 0mm, which means that the transition link 3-2 and the final link 3-3 cannot move relative to each other in the Y direction.

[0067] As attached Figure 15 As shown, the scissor-type telescopic mechanism's adaptive bending deformation structure is in a rotational state. The two rotating bosses 3-2-3 of the transition link 3-2 and the two rotating bosses 3-3-3 of the final link 3-3 are in a partially contacting state, and as the scissor-type telescopic mechanism continues to extend, the length of this partially contacting state gradually decreases. At this time, the minimum distance between the transition link 3-2 and the final link 3-3 is also 0mm, indicating that the transition link 3-2 and the final link 3-3 cannot move relative to each other in the Y direction.

[0068] As attached Figure 16 As shown, the scissor-type telescopic mechanism's adaptive bending deformation structure is in a bendable state. The two rotating bosses 3-2-3 of the transition link 3-2 and the two rotating bosses 3-3-3 of the final link 3-3 are completely disengaged. At this time, the minimum distance between the transition link 3-2 and the final link 3-3 becomes 0.5d, which indicates that the transition link 3-2 and the final link 3-3 have relative movement space in the Y direction.

[0069] As attached Figure 17 The diagram shows a scissor-type telescopic mechanism in its maximum bending deformation state in the positive Y direction. The angle between the center line p of the gap between the two final-stage connecting rods 3-3 and the center line q of the gap between the two primary connecting rods 3-1 is W. W is the bending deformation angle that the end of the scissor-type telescopic mechanism can adapt to. W is related to dimensions such as the height h of the rotating boss, the height of the connecting rod, and the vertical spacing between the connecting rods.

[0070] As attached Figure 18 The diagram shows a scissor-type telescopic mechanism in the negative Y-direction limit bending deformation state. The negative Y-direction bending deformation angle has the same value as the negative Y-direction bending deformation angle, but the bending direction is opposite.

[0071] As attached Figure 19 As shown, when the present invention includes multi-stage linkages, the bending deformation angle that the telescopic mechanism end can adapt to is improved by using at least one stage of extension linkage. The extension linkage 3-8 includes a linkage body 3-8-1, a rotating recess 3-8-2, and a rotating boss 3-8-3. Two rotating recesses 3-8-2 of identical shape and size are arranged on the central axis of the linkage body 3-3-1, at both ends. Rotating bosses 3-8-3 are arranged along the outer surface of the rotating recesses 3-8-2 at both ends. The arrangement, shape, and size of the rotating bosses 3-8-3 are exactly the same as those of the rotating bosses 3-2-3.

[0072] As attached Figure 20 As shown, this diagram illustrates the bending deformation state of the scissor-type telescopic mechanism after adding two additional extension links 3-8. The two newly added extension links 3-8 are connected to the transition link 3-2 and the final link 3-3 respectively via deformable connecting components 3-7. The deformable connecting component 3-7, used to connect the extension link 3-8 and the transition link 3-2, has a spherical bearing installed in the rotating recess of the extension link 3-8, and a rotating sleeve installed in the rotating recess of the transition link 3-2. Similarly, the deformable connecting component 3-7, used to connect the extension link 3-8 and the final link 3-3, has a spherical bearing installed in the rotating recess of the final link, and a rotating sleeve installed in the rotating recess of the extension link. In this state, the scissor-type telescopic mechanism can accommodate a limit bending deformation angle of V, where V = 2W. Further axial extension of more extension links 3-8 can be added as needed. The connection scheme for the added extension links 3-8 is similar to that of the attached... Figure 20 same.

[0073] It is understood that this invention has been described through embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this invention. Furthermore, under the teachings of this invention, these features and embodiments can be modified to adapt to specific circumstances without departing from the spirit and scope of this invention. Therefore, this invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this invention.

[0074] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A scissor-type telescopic mechanism with an adaptable bending end, installed between a fixed wing and a telescopic wing, for driving the telescopic wing to move relative to the fixed wing in a preset direction, characterized in that: The telescopic mechanism includes: Two primary links (3-1) have their output ends hinged to the input ends of the transition links (3-2) respectively, and are used to drive the two transition links (3-2); Two transition links (3-2) are hinged together at the middle, and their output ends are respectively hinged to the input end of the final link (3-3) through a deformable connecting assembly (3-7). The link body (3-2-1) of the transition link (3-2) has a rotating recess (3-2-2) at both ends. On the outer surface of the rotating recess at the output end of the transition link (3-2), there are a first annular boss (3-2-3-1) and a second annular boss (3-2-3-2) arranged opposite to each other, which are concentric with the rotating recess at the output end. Two final stage connecting rods (3-3). The connecting rod body (3-3-1) of the final stage connecting rod (3-3) has rotating recesses (3-3-2) at both ends. On the outer extension surface of the rotating recess at the input end of the final stage connecting rod (3-3), two annular bosses are also provided opposite to each other. The arrangement and shape and size of the first and second annular bosses at the output end of the transition connecting rod (3-2) are the same. During the extension of the drive transition link (3-2) and the final link (3-3), the contact state between the annular boss at the output end of the transition link (3-2) and the annular boss at the input end of the final link (3-3) changes from complete contact to partial contact and finally to complete separation, so that the transition link (3-2) and the final link (3-3) have relative movement space in the longitudinal direction; the deformable connection component (3-7) provides connection constraints for the transition link (3-2) and the final link (3-3) while cooperating with the longitudinal movement between them, so that the end of the telescopic mechanism adapts to bending deformation.

2. The scissor-type telescopic mechanism with an end adaptable to bending according to claim 1, characterized in that: The deformable connection assembly (3-7) includes a spherical bearing (3-4-8), a rotating sleeve (3-4-2), and a connecting assembly; the spherical bearing (3-4-8) is installed in the rotating recess at the input end of the final stage connecting rod (3-3), and the rotating sleeve (3-4-2) is installed in the rotating recess at the output end of the transition connecting rod (3-2); the connecting assembly is used to connect the transition connecting rod and the final stage connecting rod.

3. The scissor-type telescopic mechanism with an end adaptable to bending according to claim 2, characterized in that: The spherical plain bearing (3-4-8) consists of an inner bearing ring (3-4-8-1) and an outer bearing ring (3-4-8-2). The outer bearing ring (3-4-8-2) can rotate freely around the center of the inner bearing ring (3-4-8-1).

4. The scissor-type telescopic mechanism with an end adaptable to bending according to claim 1, characterized in that: Also includes: At least one extension link is provided to increase the bending deformation angle that the telescopic mechanism can accommodate at its end. The first-stage extension link includes two extension links (3-8). The extension link (3-8-1) has a rotating recess (3-8-2) at both ends. On the outer surface of the rotating recess at the input and output ends of the extension link (3-8), there are annular bosses respectively. The annular bosses are arranged in the same way and have the same shape and size as the first and second annular bosses at the output end of the transition link (3-2). The input end of the extension link (3-8) is hinged to the output end of the transition link (3-2) through a deformable connection assembly; the output end of the extension link (3-8) is hinged to the input end of the next-stage extension link or the final-stage link (3-3) through a deformable connection assembly.

5. The scissor-type telescopic mechanism with an end adaptable to bending according to claim 4, characterized in that: The deformable connection assembly includes a spherical bearing, a rotating sleeve, and a connecting assembly; The deformable connecting assembly for connecting the input end of the hinged extension link (3-8) and the output end of the transition link (3-2) has a spherical bearing installed in the rotating recess of the input end of the extension link, and a rotating sleeve installed in the rotating recess of the output end of the transition link. The connecting assembly is used to connect the transition link and the extension link. A deformable connecting assembly for connecting the output end of the hinged extension link (3-8) to the input end of the next-stage extension link or the final-stage link (3-3), wherein the spherical bearing is installed in the rotating recess of the input end of the next-stage extension link or the rotating recess of the input end of the final-stage link (3-3), and the rotating sleeve is installed in the rotating recess of the output end of the extension link; the connecting assembly is used to connect the extension link to the next-stage extension link or the final-stage link.

6. The scissor-type telescopic mechanism with an end adaptable to bending according to claim 1, characterized in that: The four quadrants, I, II, III, and IV, are divided by the mutually perpendicular a-axis and b-axis; the a-axis is coaxial with the central axis of the transition link. The first annular protrusion (3-2-3-1) has an arc of 45° in quadrant I and an arc of X in quadrant II; the second annular protrusion (3-2-3-2) has an arc of 45° in quadrant III and an arc of X in quadrant IV; the value of X is 0°≤X≤45°.

7. The scissor-type telescopic mechanism with an end adaptable to bending according to claim 1, characterized in that: The first annular boss (3-2-3-1) and the second annular boss (3-2-3-2) have the same height and width. The height h = 0.5d, where d is the longitudinal distance between the transition link and the final link. The width b ranges from 2mm to 15mm.

8. The scissor-type telescopic mechanism with an end adaptable to bending according to claim 1, characterized in that: The input ends of the two primary links (3-1) are hinged to the fixed wing; the output ends of the two final links (3-3) are hinged to the telescopic wing.

9. An aircraft wing surface, characterized in that: The wing surface includes a scissor-type telescopic mechanism with an end adaptable to bending, as described in any one of claims 1 to 8.

10. A variant aircraft, characterized in that: The wing of the variant aircraft has a scissor-type telescopic mechanism with an end that can adapt to bending as described in any one of claims 1 to 8, for the deployment and retraction of the wing, so as to change the wing configuration during flight.

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