Vertical tail and horizontal tail butt joint fairing connecting structure and airplane

Abstract

The invention belongs to the technical field of aerospace, and discloses a vertical and horizontal tail butt joint fairing connecting structure and an aircraft, a vertical and horizontal tail butt joint fairing skin is fixedly connected with a horizontal tail upper wall plate, a vertical tail left wall plate is fixedly connected with a vertical tail end rib, and an inserting plate is connected to the position, connected with the vertical tail end rib, of the inner side of the vertical and horizontal tail butt joint fairing skin; a base plate is fixedly connected between the vertical tail left wall plate and the vertical and horizontal tail butt joint fairing skin on the vertical tail end rib, an insertion cavity allowing the insertion plate to be inserted is reserved between the base plate and the vertical tail end rib, and the insertion plate is inserted into the insertion cavity and can slide in the insertion cavity. The outer surface of the vertical fin left wall plate outer surface base plate is flush with the outer surface of the vertical and horizontal tail butt joint fairing skin. According to the vertical and horizontal tail butt joint fairing, the skin and the vertical tail end ribs are in flexible connection, so that the fairing can have a certain deformation coordination capacity, deformation is limited by flexible connection to be further transmitted to a vertical tail structure, and then unreasonable deformation can be prevented from damaging the aerodynamic configuration and increasing resistance.

Description

Technical Field

[0001] The invention belongs to the field of aerospace technology, and in particular relates to a vertical horizontal tail docking fairing connection structure and an aircraft. Background Art

[0002] The vertical tail docking fairing is located at the intersection of the vertical and horizontal tail docking. The main function of the vertical tail docking fairing is to aerodynamically straighten the docking area of ​​the vertical tail and the horizontal tail, reduce air resistance, and ensure the aerodynamic shape requirements of the tail.

[0003] The design of the fairing should mainly consider reasonable and efficient structural layout, and should be able to take into account many design factors to improve structural efficiency; the next is the edge connection design. The edge connection design should consider eliminating the additional load caused by the mismatch between the stiffness of the fairing and the main structure, and limit the load transfer through the structural connection design to avoid unreasonable deformation causing structural fatigue problems. At present, the commonly used fairing edge connection methods are direct connection, strip plate connection and sealing profile connection. Direct connection and strip plate connection can effectively limit the deformation of the fairing, but cause the fairing to bear a large structural load, and the structural weight pays a high price. The sealing profile connection design can avoid direct connection and meet the aerodynamic sealing requirements, but there are structural limitations and it is sometimes not applicable. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a vertical horizontal tail docking fairing connection structure and an aircraft. In the present invention, the vertical horizontal tail docking fairing skin and the vertical tail end rib are softly connected, so that the fairing can have a certain amount of deformation coordination ability. The soft connection limits the deformation from being further transmitted to the vertical tail structure, thereby avoiding unreasonable deformation that damages the aerodynamic shape and increases resistance.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A vertical flat tail docking fairing connection structure comprises a vertical flat tail docking fairing skin, a flat tail upper wall plate, a vertical tail left wall plate, a pad, a plug-in plate and a vertical tail end rib. The vertical flat tail docking fairing skin is fixedly connected to the flat tail upper wall plate, the vertical tail left wall plate is fixedly connected to the vertical tail end rib, the plug-in plate is connected to the inner side of the vertical flat tail docking fairing skin at a connection position with the vertical tail end rib, a pad is fixedly connected on the vertical tail end rib between the vertical tail left wall plate and the vertical flat tail docking fairing skin, an insertion cavity for inserting the plug-in plate is reserved between the pad and the vertical tail end rib, the plug-in plate is inserted into the insertion cavity and can slide in the insertion cavity, and the outer surface of the pad and the outer surface of the vertical tail left wall plate are flush with the outer surface of the vertical flat tail docking fairing skin.

[0006] Preferably, there is a clearance fit between the plug board and the insertion cavity.

[0007] Preferably, a gasket for controlling the width of the insertion cavity is provided between the pad and the vertical tail end rib.

[0008] Preferably, the plug-in plate is a toothed plate, and one end of the toothed plate located in the insertion cavity is provided with a tooth groove for avoiding the gasket.

[0009] Preferably, a movable spacing is left between the washer and the tooth groove, and a movable spacing is left between the vertical horizontal tail docking fairing skin and the backing plate.

[0010] Preferably, the backing plate is connected to the vertical tail end rib at the position where the washer is set by means of support plate nuts and bolts.

[0011] Preferably, the washer is a spring washer.

[0012] Preferably, the vertical tail docking fairing skin and the plug-in plate are connected by support plate nuts and bolts; the vertical tail left wall plate and the vertical tail end rib are fixedly connected by high locking bolts and nuts.

[0013] Preferably, the vertical horizontal tail docking fairing skin and the horizontal tail upper wall plate are fixedly connected by an L-shaped connecting angle bar.

[0014] The present invention also provides an aircraft, wherein the vertical tail docking fairing skin, the horizontal tail upper wall plate, the vertical tail left wall plate and the vertical tail end rib of the aircraft are connected by the vertical tail docking fairing connection structure of the present invention as described above.

[0015] The present invention has the following beneficial effects: In the vertical flat tail docking fairing connection structure of the present invention, the vertical flat tail docking fairing skin and the vertical tail end rib are not fixed, but a soft connection structure with a certain relative displacement is adopted. Specifically, a plug-in plate is connected to the inner side of the vertical flat tail docking fairing skin, and an insertion cavity for the plug-in plate to be inserted is reserved between the pad and the vertical tail end rib. The plug-in plate is inserted into the insertion cavity and can slide in the insertion cavity. When the plug-in plate slides in the insertion cavity, the vertical flat tail docking fairing skin and the vertical tail end rib have a certain relative mobility, so that the fairing can have a certain amount of deformation coordination ability, and the soft connection limits the deformation to be further transmitted to the vertical tail structure, thereby avoiding unreasonable deformation that damages the aerodynamic shape and increases resistance. In addition, in the present invention, the outer surface of the pad on the outer surface of the vertical tail left wall plate is flush with the outer surface of the vertical flat tail docking fairing skin, so that the aerodynamic performance of the vertical flat tail docking fairing skin, the vertical tail left wall plate and the pad at adjacent positions can be guaranteed, thereby ensuring the fairing ability of the entire fairing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments 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 creative work.

[0017] Figure 1 It is a schematic diagram of the vertical horizontal tail docking fairing connection structure in an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the connection structure between a vertical horizontal tail docking fairing skin and one end of a horizontal tail in a vertical horizontal tail docking fairing connection structure in an embodiment of the present invention.

[0019] Figure 3 The figure is a schematic diagram of the soft connection structure between the vertical tail docking fairing skin and one end of the vertical tail in the vertical tail docking fairing connection structure in an embodiment of the present invention.

[0020] Figure 4 The figure is a schematic diagram of the relative positions of the toothed plate and the gasket of the vertical horizontal tail docking fairing connection structure in the embodiment of the present invention.

[0021] Figure 5 Schematic diagram of the toothed plate structure of the vertical horizontal tail docking fairing connection structure in an embodiment of the present invention.

[0022] Explanation of numbers in the figure: 1-vertical tail docking fairing skin, 2-horizontal tail upper wall plate, 3-vertical tail left wall plate, 4-L-shaped connecting angle material, 5-pad, 6-serrated plate, 7-washer, 8-vertical tail end rib, 9-insertion cavity, 10-high locking bolt and nut installation position, 11-first support plate nut and bolt installation position, 12-second support plate nut and bolt installation position. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can usually be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-Figure 3The vertical tail docking fairing connection structure of this embodiment includes a vertical tail docking fairing skin 1, a horizontal tail upper wall plate 2, a vertical tail left wall plate 3, a pad 5, a plug-in plate and a vertical tail end rib 8. The vertical tail docking fairing skin 1 is fixedly connected to the horizontal tail upper wall plate 2, the vertical tail left wall plate 3 is fixedly connected to the vertical tail end rib 8, and the inner side of the vertical tail docking fairing skin 1 (see Figure 3 , wherein the inner side is the lower side of the vertical tail left wall panel 3 and the vertical tail end rib 8. Under normal circumstances, this side faces the inside of the aircraft. The plug-in board is connected to the connection position with the vertical tail end rib 8. A pad 5 is fixedly connected to the vertical tail end rib 8 between the vertical tail left wall panel 3 and the vertical horizontal tail docking fairing skin 1. An insertion cavity 9 for the plug-in board to be inserted is reserved between the pad 5 and the vertical tail end rib 8. The plug-in board is inserted into the insertion cavity 9 and can slide in the insertion cavity 9. The outer surface of the pad 5 on the outer surface of the vertical tail left wall panel 3 is flush with the outer surface of the vertical horizontal tail docking fairing skin 1. From Figure 3 It can be seen that the vertical horizontal tail docking fairing skin 1 can move left and right relative to the pad 5 and the vertical tail end rib 8, which is a soft connection method, so that the vertical horizontal tail docking fairing skin 1 has a certain degree of mobility, and thus the fairing can have a certain amount of deformation coordination ability. The soft connection limits the deformation and is further transmitted to the vertical tail structure, thereby avoiding unreasonable deformation that damages the aerodynamic shape and increases resistance.

[0025] As a preferred implementation scheme of the present invention, in this embodiment, there is a clearance fit between the plug-in board and the insertion cavity 9. The clearance fit not only ensures the relative movement between the plug-in board and the insertion cavity 9, but also avoids the plug-in board from shaking in the insertion cavity 9 due to excessive clearance, especially when the vertical horizontal tail docking fairing skin 1 is affected by external airflow, thereby avoiding excessive vibration or resonance of the vertical horizontal tail docking fairing skin 1.

[0026] As a preferred embodiment of the present invention, see Figure 3 In this embodiment, a space is provided between the pad 5 and the vertical tail end rib 8 for controlling the width of the insertion cavity 9 ( Figure 3 The washer 7 with a length of 1 / 4 in the vertical direction of the insertion cavity 9 is used to limit the gap between the pad 5 and the vertical tail end rib 8, which is beneficial to ensuring the width of the insertion cavity 9. At the same time, the structure is simple and easy to implement.

[0027] As a preferred embodiment of the present invention, see Figure 4 and Figure 5In this embodiment, the plug-in plate adopts a toothed plate 6, and one end of the toothed plate 6 located in the insertion cavity 9 is provided with a tooth groove 6-1 for avoiding the gasket 7. By providing the tooth groove 6-1, the depth of the toothed plate 6 in the insertion cavity 9 can be ensured, thereby ensuring the reliability of the soft connection between the vertical horizontal tail docking fairing skin 1, the pad 5, the plug-in plate and the vertical tail end rib 8, and avoiding the possibility of the toothed plate 6 slipping out of the insertion cavity 9. At the same time, the gasket 7 and the tooth groove 6-1 can be used to position the toothed plate 6, so that the range of movement of the vertical horizontal tail docking fairing skin 1 is subject to certain constraints, which not only ensures the effectiveness of the soft connection, but also avoids the toothed plate 6 in the front and rear directions (with Figure 3 Taking the orientation shown as an example, the displacement of the front-to-back direction is the direction perpendicular to the paper surface) is not controlled.

[0028] As a preferred embodiment of the present invention, see Figure 4 In this embodiment, a movable spacing is left between the gasket 7 and the tooth groove 6-1, and a movable spacing is left between the vertical horizontal tail docking fairing skin 1 and the pad 5. These movable spacings can make the vertical horizontal tail docking fairing skin 1 have a certain movable deformation ability, but the movable deformation ability will be subject to certain constraints, thereby ensuring the effectiveness of the entire soft connection structure.

[0029] As an alternative embodiment of the present invention, see Figure 3 In this embodiment, the pad 5 is connected to the vertical tail end rib 8 at the position where the washer 7 is set by the support plate nut and bolt. The specific installation position is detailed in Figure 3 The first support plate nut and bolt installation position 11. Among them, the washer 7 can be a spring washer. The vertical tail docking fairing skin 1 and the plug-in plate are connected by support plate nuts and bolts. The specific installation position is detailed in Figure 3 The second support plate nut bolt installation position 12; the vertical tail left wall plate 3 and the vertical tail end rib 8 are fixedly connected by high locking bolts and nuts. For details on the specific installation position, see Figure 3 The middle and high locking bolts and nuts are installed at position 10. The vertical tail docking fairing skin 1 and the horizontal tail upper wall plate 2 are fixedly connected by an L-shaped connecting angle 4.

[0030] Example 1 like Figure 1 As shown, the vertical tail docking fairing connection structure of this embodiment includes a vertical tail docking fairing skin 1, a horizontal tail upper wall panel 2, a vertical tail left wall panel 3, an L-shaped connecting angle material 4, a pad 5, a toothed plate 6, a gasket 7 and a vertical tail end rib 8. The vertical tail end rib 8 is an I-shaped structure, one end of which is connected to the vertical tail left wall panel 3 by a high-locking bolt and nut; the other end is connected to the pad 5 and the gasket 7 by a support plate nut and a bolt, and the support plate nut is installed on the vertical tail end rib 8 to ensure that the pad 5 is removable and the structure has good maintainability. The vertical tail docking fairing skin 1 is connected to the horizontal tail upper wall panel 2 by an L-shaped connecting angle material 4 (see for details). Figure 2), the L-shaped connecting angle bar 4 is connected to the upper wall plate 2 of the horizontal tail through high-locking bolts and nuts, and the L-shaped connecting angle bar 4 is detachably connected to the vertical horizontal tail docking fairing skin 1 through the support plate nuts and bolts. The support plate nuts are installed on the L-shaped connecting angle bar 4 to ensure that the vertical horizontal tail docking fairing skin 1 and the horizontal tail are detachably connected. The connection between the vertical horizontal tail docking fairing skin 1 and the vertical tail is a soft connection (see Figure 3 ), specifically, a soft connection is achieved through a pad 5, a toothed plate 6, and a gasket 7. A notch is provided on the toothed plate 6 at the connection between the pad 5 and the vertical tail end rib 8. The toothed plate 6 is stuck between the pad 5 and the vertical tail end rib 8, and has no direct connection with the vertical tail end rib 8. The toothed plate 6 is detachably connected to the structures at both ends, and the structure has good maintainability. The horizontal tail is deformed under the bending load, and the fairing slides a certain amount with the toothed plate 6 to achieve deformation coordination. One end of the toothed plate 6 is detachably connected to the vertical horizontal tail fairing skin 1 with a support plate nut and bolts, and the other end of the toothed plate 6 is located between the pad 5 and the vertical tail end rib 8 and has no direct connection with the vertical tail end rib 8. The two ends of the toothed plate 6 are detachable, and the structure has good maintainability. The pad 5 and the vertical tail end rib 8 are connected with a gasket 7 of the same thickness as the toothed plate 6 (see for details). Figure 4 ). The toothed plate 6 is stuck between the pad 5 and the vertical tail end rib 9, so that it can slide to a certain extent with the deformation of the vertical tail docking fairing skin 1 to achieve deformation coordination and seal. The toothed plate soft connection can limit the deformation from being further transmitted to the vertical tail structure, avoiding unreasonable deformation that damages the aerodynamic shape, increases resistance, and reduces structural weight; at the same time, it can also achieve effective waterproofing, preventing rainwater from flowing into and damaging the system equipment inside the vertical tail box section.

[0031] Example 2 The present embodiment provides an aircraft, which includes a tail including a vertical tail and a horizontal tail. The vertical and horizontal tail docking fairing at the connecting position of the vertical tail and the horizontal tail is connected by the vertical and horizontal tail docking fairing connection structure in Example 1. Specifically, the vertical and horizontal tail docking fairing skin 1 and the horizontal tail upper wall panel 2 are fixedly connected by an L-shaped connecting angle 4. The L-shaped connecting angle 4 and the vertical and horizontal tail docking fairing skin 1 and the horizontal tail upper wall panel 2 can be fixedly connected by welding, riveting or screw connection. The present invention does not make specific limitations, as long as the vertical and horizontal tail docking fairing skin 1 and the horizontal tail upper wall panel 2 can be fixedly connected. The vertical tail left wall panel 3 and the vertical tail end rib 8 are fixedly connected by high-locking bolts and nuts. The main characteristics of the high-locking bolts used are high strength, easy disassembly, reusability, no need for special tools, shockproof and corrosion-resistant. High-lock bolts are generally made of alloy steel. After professional heat treatment and mold cold bending process, they have high strength and can withstand large loads. They are often used in situations where high strength requirements are required for connecting parts. Therefore, the high-lock bolts and nuts are used to fix the vertical tail left wall plate 3 and the vertical tail end rib 8 to ensure the connection strength between the vertical tail left wall plate 3 and the vertical tail end rib 8. At the same time, they can be disassembled. The inner side of the vertical tail docking fairing skin 1 (see Figure 3 , where the inner side is the lower side of the vertical tail left wall panel 3 and the vertical tail end rib 8, under normal circumstances, this side is facing the inside of the aircraft) A toothed plate 6 is connected to the vertical tail end rib 8. A pad 5 is fixedly connected to the vertical tail end rib 8 between the vertical tail left wall panel 3 and the vertical horizontal tail docking fairing skin 1. An insertion cavity 9 for inserting the toothed plate 6 is reserved between the pad 5 and the vertical tail end rib 8. The toothed plate 6 is inserted into the insertion cavity 9 and can slide in the insertion cavity 9. A device for controlling the width of the insertion cavity 9 ( Figure 3 The washer 7 of the insertion cavity 9 (the size of the insertion cavity 9 in the vertical direction) is used to limit the gap between the pad 5 and the vertical tail end rib 8 by the pad 7, which is conducive to ensuring the width of the insertion cavity 9. The pad 5 and the vertical tail end rib 8 are connected by the support plate nut and bolt at the position where the washer 7 is set. The support plate bolts used can be reused, which saves costs to a great extent. During assembly and disassembly, there is no need to buy new bolts every time, and only need to reinstall them. The toothed plate 6 is provided with a tooth groove 6-1 at one end of the toothed plate 6 located in the insertion cavity 9 to avoid the washer 7. A movable spacing is left between the washer 7 and the tooth groove 6-1. By setting the tooth groove 6-1, the depth of the toothed plate 6 in the insertion cavity 9 can be ensured, thereby ensuring the reliability of the soft connection between the vertical horizontal tail docking fairing skin 1, the pad 5, the plug-in plate and the vertical tail end rib 8, and avoiding the possibility of the toothed plate 6 slipping out of the insertion cavity 9. At the same time, the washer 7 and the tooth groove 6-1 can be used to position the toothed plate 6, so that the range of motion of the vertical tail docking fairing skin 1 is subject to certain constraints, which not only ensures the effectiveness of the soft connection, but also prevents the toothed plate 6 from moving in the front and rear directions (with Figure 3Taking the orientation shown as an example, the front-to-back direction is the direction perpendicular to the paper surface) the displacement is uncontrolled. In addition, the gasket 7 can be a spring gasket or a rubber gasket. Both types of gaskets have a certain elastic deformation ability in the width direction of the insertion cavity 9, so that the structure is more reliable and not easy to loosen after the connection bolts are used, and the width of the insertion cavity 9 can be fine-tuned by the tightening degree of the bolts to ensure the matching relationship between the insertion cavity 9 and the toothed plate 6. In addition, the elastic deformation of the gasket 7 can also reduce the vibration of the pad 5 in time, thereby reducing the vibration and noise generated here during the flight of the aircraft, which is beneficial to ensure the fairing performance of the entire fairing. There is an active spacing between the vertical horizontal tail docking fairing skin 1 and the pad 5. The use of these active spacings can make the vertical horizontal tail docking fairing skin 1 have a certain active deformation ability, but this active deformation ability will be subject to certain constraints, ensuring the effectiveness of the entire soft connection structure. There is a clearance fit between the toothed plate 6 and the insertion cavity 9. This clearance fit ensures the relative movement between the toothed plate 6 and the insertion cavity 9, but also avoids the toothed plate 6 from shaking in the insertion cavity 9 due to the gap being too large, especially when the vertical tail docking fairing skin 1 is affected by the external airflow, it avoids excessive vibration or resonance of the vertical tail docking fairing skin 1. The outer surface of the pad 5 on the outer surface of the vertical tail left wall panel 3 is flush with the outer surface of the vertical tail docking fairing skin 1. Figure 3 It can be seen that the vertical horizontal tail docking fairing skin 1 can move left and right relative to the pad 5 and the vertical tail end rib 8, which is a soft connection method, so that the vertical horizontal tail docking fairing skin 1 has a certain degree of mobility, and thus the fairing can have a certain amount of deformation coordination ability. The soft connection limits the deformation and is further transmitted to the vertical tail structure, thereby avoiding unreasonable deformation that damages the aerodynamic shape and increases resistance.

[0032] In summary, the vertical tail docking fairing connection structure of the present invention is that the fairing and the horizontal tail are connected by a belt plate, and the fairing and the vertical tail are softly connected by a toothed plate. The horizontal tail is deformed by the bending load, and the fairing slides with the toothed plate to a certain extent to achieve deformation coordination. The soft connection limits the deformation and further transmits it to the vertical tail structure, avoiding unreasonable deformation that damages the aerodynamic shape, increases resistance, and reduces the weight of the structure. At the same time, it can also achieve effective waterproofing, preventing rainwater from flowing into and damaging the system equipment inside the vertical tail box section.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A vertical tail docking fairing connection structure, characterized in that: The invention comprises a vertical tail docking fairing skin (1), a horizontal tail upper wall plate (2), a vertical tail left wall plate (3), a pad (5), a plug-in plate and a vertical tail end rib (8), wherein the vertical tail docking fairing skin (1) is fixedly connected to the horizontal tail upper wall plate (2), the vertical tail left wall plate (3) is fixedly connected to the vertical tail end rib (8), the plug-in plate is connected to the vertical tail docking fairing skin (1) at the inner side thereof at the connection position with the vertical tail end rib (8), a pad (5) is fixedly connected between the vertical tail left wall plate (3) and the vertical tail docking fairing skin (1) on the vertical tail end rib (8), an insertion cavity (9) for inserting the plug-in plate is reserved between the pad (5) and the vertical tail end rib (8), the plug-in plate is inserted into the insertion cavity (9) and can slide in the insertion cavity (9), and the outer surface of the pad (5) on the outer surface of the vertical tail left wall plate (3) is flush with the outer surface of the vertical tail docking fairing skin (1).

2. A vertical tail docking fairing connection structure according to claim 1, characterized in that: There is a clearance fit between the plug board and the insertion cavity (9).

3. A vertical tail docking fairing connection structure according to claim 1, characterized in that: A gasket (7) for controlling the width of the insertion cavity (9) is provided between the pad (5) and the vertical tail end rib (8).

4. A vertical tail docking fairing connection structure according to claim 3, characterized in that: The plug-in plate adopts a toothed plate (6), and one end of the toothed plate (6) located in the insertion cavity (9) is provided with a tooth groove (6-1) for avoiding the washer (7).

5. A vertical tail docking fairing connection structure according to claim 4, characterized in that: A movable spacing is left between the washer (7) and the tooth groove (6-1), and a movable spacing is left between the vertical horizontal tail docking fairing skin (1) and the backing plate (5).

6. A vertical tail docking fairing connection structure according to claim 4, characterized in that: The backing plate (5) is connected to the vertical tail end rib (8) at the position where the washer (7) is provided by means of a supporting plate nut and a bolt.

7. The vertical tail docking fairing connection structure according to claim 3, characterized in that: The washer (7) is a spring washer.

8. The vertical tail docking fairing connection structure according to claim 1, characterized in that: The vertical tail docking fairing skin (1) and the plug-in plate are connected by support plate nuts and bolts; the vertical tail left wall plate (3) and the vertical tail end rib (8) are fixedly connected by high locking bolts and nuts.

9. The vertical tail docking fairing connection structure according to claim 1, characterized in that: The vertical horizontal tail docking fairing skin (1) and the horizontal tail upper wall plate (2) are fixedly connected by an L-shaped connecting angle material (4).

10. An aircraft, characterized in that: The vertical tail docking fairing skin (1), the horizontal tail upper wall panel (2), the vertical tail left wall panel (3) and the vertical tail end rib (8) of the aircraft are connected by using the vertical tail docking fairing connection structure according to any one of claims 1 to 9.

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