A telescopic aircraft tail connection device

Abstract

The present invention relates to the technical field of underwater vehicles, and provides a telescopic vehicle tail connection device, including a base body, a connecting ring body, a plurality of first adjustment components and a plurality of second adjustment components, wherein the first adjustment component includes a slide rail seat, a slide rail and a positioning component, the inner side surface of the slide rail seat is fixedly assembled on the outer side surface of the base body, the outer side surface of the slide rail seat is provided with a slide rail groove, the fixed end of the slide rail is fixedly assembled on the outer side surface of the connecting ring body, the movable end of the slide rail is movably assembled in the slide rail groove and positioned by the positioning component; the second adjustment component includes an adjustment seat, a guide rod, a threaded adjustment shaft, an adjustment slider, a threaded pin and a fixed seat, and rotating the threaded adjustment shaft can make the adjustment slider and the threaded pin move linearly along the axial direction of the threaded adjustment shaft. The present invention can realize a wide range of axial adjustment and precise axial positioning of the vehicle tail connection device, and at the same time ensure that different deployment devices take into account long adjustment strokes and high positioning accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater vehicles, and in particular to a telescopic vehicle tail connection device. Background Art

[0002] Aircraft are usually deployed using a deployment device on a deployment platform (including underwater, surface and airdrop). High-pressure water or gas is used to push the aircraft out of the deployment device, involving processes such as aircraft transfer, loading, unloading, parameter preset, cable cutting and aircraft deployment. This process is achieved by using a tail connector, specifically, all electrical and mechanical connections with the deployment device are released the moment the aircraft is launched from the tube.

[0003] In practical applications, the existing tail connectors have the following deficiencies: 1. Poor versatility. Since the existing tail connectors usually use fixed connectors and lack the ability to adjust the position of axial positioning, one tail connector is only suitable for one aircraft and one deployment device, which greatly increases the user's maintenance and procurement costs and seriously limits the platform space for underwater aircraft. Specifically, the interfaces between aircrafts of different specifications and deployment devices (mainly for axial positions) are very different, and the positioning interfaces between deployment devices of different models (mainly for axial positions) are very different, resulting in a specification of aircraft for different models of deployment devices need to be equipped with a variety of aircraft tail connectors, and at the same time, a model of deployment device for different specifications of aircraft need to be equipped with a variety of aircraft tail connectors. 2. The docking of the aircraft and the deployment device requires precise positioning, and the existing tail connector cannot guarantee that different deployment devices have a long adjustment stroke and high positioning accuracy. 3. The convenience of operation and the problem of reducing the operating intensity in the narrow space of the underwater deployment device are not fully considered.

[0004] Therefore, how to solve the problem that a tail connector is not compatible with different specifications of aircraft and different models of deployment devices, and to provide a tail connector that has both the functions of a traditional tail connector and a large stroke adjustment capability and precise positioning and fine-tuning capability, has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of this, in order to overcome the shortcomings of the prior art, the present invention aims to provide a telescopic aircraft tail connection device, which improves the stroke adjustment capability and precise positioning capability, is suitable for aircraft of different specifications and deployment devices of different models, and reduces users' maintenance and procurement costs.

[0006] The present invention provides a telescopic aircraft tail connection device, comprising a base body, a connecting ring body, a plurality of first adjustment components and a plurality of second adjustment components, wherein the first adjustment component comprises a slide rail seat, a slide rail and a positioning component, the inner side surface of the slide rail seat is fixedly assembled on the outer side surface of the base body, the outer side surface of the slide rail seat is provided with a slide rail groove, the fixed end of the slide rail is fixedly assembled on the outer side surface of the connecting ring body, the movable end of the slide rail is movably assembled in the slide rail groove and is positioned by the positioning component; the second adjustment component comprises an adjustment seat, a guide rod, a threaded adjustment shaft, an adjustment slider, a threaded pin and a fixed seat, Among them, the fixed seat is fixedly assembled on the inner side of the connecting ring body, the adjusting seat is fixedly assembled with the fixed seat, the guide rod and the threaded adjustment shaft are fixedly assembled inside the adjusting seat in parallel with each other along the axial direction of the connecting ring body, the two ends of the adjusting slider are respectively sleeved on the outside of the guide rod and the threaded adjustment shaft, the middle part of the adjusting slider is sleeved on the outside of the threaded pin, rotating the threaded adjustment shaft can make the adjusting slider and the threaded pin move linearly along the axial direction of the threaded adjustment shaft, rotating the threaded pin can make the threaded pin move linearly along the diameter direction of the connecting ring body, and pulling the slide rail can make the connecting ring body move linearly along the axial direction of the connecting ring body.

[0007] As a preferred embodiment of the present invention, a first positioning component assembly hole that passes through the slide rail groove is provided at one end of the slide rail seat, and a plurality of positioning holes are provided on the movable end of the slide rail. One end of the positioning component is assembled in the first positioning component assembly hole and can perform linear motion along the axis of the first positioning component assembly hole. When the movable end of the slide rail moves along the slide rail groove of the slide rail seat so that the axis of the positioning hole coincides with the axis of the first positioning component assembly hole, the end of the positioning component passes through the side surface of the base body and extends out of the first positioning component assembly hole to position and fix the movable end of the slide rail.

[0008] As a preferred embodiment of the present invention, a sliding groove is provided on the inner side surface of the end where the moving end is assembled with the slide rail groove, and the sliding groove is connected to multiple positioning holes in the length direction of the moving end. The groove width of the sliding groove is smaller than the diameter of the positioning hole and the midline of the groove width of the sliding groove passes through the axis of the multiple positioning holes.

[0009] As a preferred embodiment of the present invention, the positioning assembly includes a positioning pin, a positioning pin pull ring, a compression spring and a shift screw sleeve, and the positioning pin is composed of a positioning portion, a shift protrusion and a pin body portion which are integrally connected.

[0010] As a preferred embodiment of the present invention, the end of the positioning portion is hemispherical and the diameter of the positioning portion is not larger than the inner diameter of the positioning hole, a pull ring assembly hole is arranged at the end of the pin body, one end of the positioning pin pull ring is coaxially fixedly assembled in the pull ring assembly hole, the shape of the shift protrusion matches the assembly hole of the first positioning component, the shift screw sleeve is coaxially arranged on the outside of the pin body and fixedly assembled on the base body, and the compression spring is coaxially arranged on the outside of the pin body between the shift protrusion and the shift screw sleeve.

[0011] As a preferred embodiment of the present invention, a plurality of second positioning component assembly holes are arranged on the outer surface of the base body, and the second positioning component assembly holes match the first positioning component assembly holes. A third positioning component assembly hole connected to the second positioning component assembly hole is arranged on the inner surface of the base body, and an internal thread is arranged on the inner side of the proximal end of the third positioning component assembly hole, and the gear screw sleeve is coaxially threadedly assembled on the inner side of the proximal end of the third positioning component assembly hole.

[0012] As a preferred embodiment of the present invention, an adjustment assembly cavity is arranged inside the adjustment seat, a first assembly hole and a second assembly hole parallel to each other pass through the adjustment seat assembly cavity and are symmetrically arranged on the adjustment seat body, the guide rod is coaxially assembled in the second assembly hole, and the threaded adjustment shaft is coaxially assembled in the first assembly hole.

[0013] As a preferred embodiment of the present invention, an adjustment threaded hole matching the threaded adjustment shaft is provided at one end of the adjusting slider, a guide hole matching the guide rod is provided at the other end of the adjusting slider, a threaded pin assembly hole is provided in the middle portion of the adjusting slider, the threaded pin is coaxially assembled in the threaded pin assembly hole, and the threaded pin can be moved along the axis of the threaded pin assembly hole by rotating the threaded pin.

[0014] As a preferred embodiment of the present invention, the fixed end of the slide rail and the fixed seat of the second adjustment assembly are respectively fixedly assembled on the outer side and inner side of the connecting ring body in a matching manner, a plurality of first movable grooves are arranged on the side of the connecting ring body, a second movable groove is arranged in the middle part of the fixed end of the slide rail, and a third movable groove is arranged in the middle part of the fixed seat, and the first movable groove, the second movable groove and the third movable groove match each other.

[0015] As a preferred embodiment of the present invention, a plurality of first slide rail assembly holes and a plurality of first fixed seat assembly holes are symmetrically arranged on both sides of the first movable groove, a plurality of second slide rail assembly holes and a second fixed seat assembly holes are symmetrically arranged on both sides of the second movable groove, a plurality of third fixed seat assembly holes are symmetrically arranged on both sides of the third movable groove, the first slide rail assembly hole matches the second slide rail assembly hole, and the first fixed seat assembly hole, the second fixed seat assembly hole match the third fixed seat assembly hole.

[0016] The telescopic aircraft tail connection device of the present invention has the following beneficial effects through comprehensive structural design:

[0017] 1. The first adjustment component is used to achieve a wide range of axial adjustment of the tail connector of the aircraft, and the second adjustment component is used to achieve precise axial positioning, while ensuring that different deployment devices have a long adjustment stroke and high positioning accuracy.

[0018] 2. It is suitable for aircraft of different specifications and deployment devices of different models, and has a wide range of platform space for carrying and use, which can significantly reduce the user's maintenance and procurement costs.

[0019] 3. Suitable for deployment in narrow spaces, improving deployment convenience and reducing operation intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in 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 paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a telescopic aircraft tail connection device according to an exemplary embodiment of the present invention;

[0022] Figure 2 It is a partial cutaway schematic diagram of a second adjustment assembly in a telescopic aircraft tail connection device according to an embodiment of the present invention;

[0023] Figure 3 This is a partial structural cutaway view of a retractable aircraft tail connection device according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a positioning assembly in a telescopic aircraft tail connection device according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the guide rail in the telescopic aircraft tail connection device according to an embodiment of the present invention;

[0026] Figure 6 It is a partial structural diagram of the second adjustment assembly and the connecting ring body in the telescopic aircraft tail connecting device according to an embodiment of the present invention;

[0027] Figure 7 This is a structural diagram of a second adjustment component in a telescopic aircraft tail connection device according to an embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of a telescopic aircraft tail connection device in a minimum size state according to an embodiment of the present invention;

[0029] Fig. 9 This is a schematic diagram of an application principle of a retractable aircraft tail connection device according to an embodiment of the present invention;

[0030] Fig.10 The present invention is a schematic diagram of another application principle of the telescopic aircraft tail connection device of an embodiment.

[0031] In the figure, 1-base body, 2-connecting ring body, 3-first adjustment component, 4-second adjustment component, 11-second positioning component assembly hole, 12-third positioning component assembly hole, 21-first moving groove, 22-first slide rail assembly hole, 23-first fixed seat assembly hole, 31-slide rail seat, 32-slide rail, 33-positioning component, 311-slide rail groove, 312-first positioning component assembly hole, 321-fixed end, 322-moving end, 323-positioning hole, 324-sliding groove, 325-second moving groove, 326-second slide rail assembly hole, 327-second fixed seat assembly hole, 331-positioning pin, 332-positioning Pin pull ring, 333-compression spring, 334-gear screw sleeve, 335-positioning part, 336-gear protrusion, 337-pin body, 338-pull ring assembly hole, 41-adjustment seat, 42-guide rod, 43-threaded adjustment shaft, 44-adjustment slider, 45-threaded pin, 46-fixed seat, 411-adjustment assembly cavity, 412-first assembly hole, 413-second assembly hole, 431-adjustment end, 441-adjustment threaded hole, 442-guide hole, 443-threaded pin assembly hole, 461-third movable groove, 462-third fixed seat assembly hole, 5-laying device, 501-positioning pin hole, 502-positioning annular groove. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] It should be noted that the following embodiments and features in the embodiments may be combined with each other in the absence of conflict; and, based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work are within the scope of protection of the present disclosure.

[0034] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0035] Figure 1 FIG. 1 is a schematic structural diagram of a telescopic aircraft tail connection device according to an exemplary embodiment of the present invention. Figure 1As shown, the telescopic aircraft tail connection device of this embodiment includes a base body 1, a connection ring body 2, a plurality of first adjustment components 3 and a plurality of second adjustment components 4.

[0036] Specifically, Figure 1 As shown, the first adjustment assembly 3 includes a slide rail seat 31, a slide rail 32 and a positioning assembly 33. The inner side of the slide rail seat 31 is fixedly assembled on the outer side of the base body 1. The outer side of the slide rail seat 31 is provided with a slide rail groove 311. The fixed end 321 of the slide rail 32 is fixedly assembled on the outer side of the connecting ring body 2. The movable end 322 of the slide rail 32 is movably assembled in the slide rail groove 311 and positioned by the positioning assembly 33. Pulling the slide rail 32 can make the connecting ring body 2 move linearly along the axis direction of the connecting ring body 2, thereby realizing a wide range of axial adjustment capabilities, multi-level position adaptability and coarse positioning functions.

[0037] Figure 2 FIG. 1 is a partial cross-sectional schematic diagram of the second adjustment component 4 in the telescopic aircraft tail connection device according to an embodiment of the present invention, as shown in FIG. Figure 2 and Figure 6 As shown, the second adjustment component 4 includes an adjustment seat 41, a guide rod 42, a threaded adjustment shaft 43, an adjustment slider 44, a threaded pin 45 and a fixed seat 46, wherein the fixed seat 46 is fixedly assembled on the inner side of the connecting ring body 2, the adjustment seat 41 and the fixed seat 46 are fixedly assembled, the guide rod 42 and the threaded adjustment shaft 43 are fixedly assembled inside the adjustment seat 41 in parallel with each other along the axial direction of the connecting ring body 2, the two ends of the adjustment slider 44 are respectively sleeved on the outside of the guide rod 42 and the threaded adjustment shaft 43, and the middle part of the adjustment slider 44 is sleeved on the outside of the threaded pin 45, and rotating the threaded adjustment shaft 43 can make the adjustment slider 44 and the threaded pin 45 move linearly along the axial direction of the threaded adjustment shaft 43, thereby realizing the precise positioning of the telescopic vehicle tail connection device and the deployment device 5.

[0038] Specifically, Figure 2 As shown, an adjustment assembly cavity 411 is provided inside the adjustment seat 41, and a first assembly hole 412 and a second assembly hole 413, which are parallel to each other, pass through the adjustment seat assembly cavity 411 and are symmetrically provided on the adjustment seat 41 body. The guide rod 42 is coaxially provided in the second assembly hole 413, and the threaded adjustment shaft 43 is coaxially provided in the first assembly hole 412. An adjustment threaded hole 441 matching the threaded adjustment shaft 43 is provided at one end of the adjustment slider 44, and a guide hole 442 matching the guide rod 42 is provided at the other end of the adjustment slider 44. A threaded pin assembly hole 443 is provided in the middle portion of the adjustment slider 44, and a threaded pin 45 is coaxially provided in the threaded pin assembly hole 443. By rotating the threaded pin 45, the threaded pin 45 can be moved along the axis of the threaded pin assembly hole 443, that is, linearly moved along the diameter direction of the connecting ring body 2, so that the threaded pin 45 is aligned with the positioning pin hole 501 (such as the positioning pin hole 501) of the deployment device 5. Fig. 9as shown) or positioning annular groove 502 (as shown Fig.10 As shown in the figure, the aircraft is positioned in the deployment device 5, thereby realizing the connection between the telescopic aircraft tail connection device and the deployment device 5.

[0039] Figure 3 FIG. 1 is a partial structural cutaway view of a retractable aircraft tail connection device according to an embodiment of the present invention, as shown in FIG. Figure 3 and Figure 1 As shown, a first positioning component assembly hole 312 penetrating the slide rail groove 311 is provided at one end of the slide rail seat 31, and a plurality of positioning holes 323 are provided on the movable end 322 of the slide rail 32. One end of the positioning component 33 is assembled in the first positioning component assembly hole 312 and can perform linear motion along the axis of the first positioning component assembly hole 312. When the movable end 322 of the slide rail 32 moves along the slide rail groove 311 of the slide rail seat 31 so that the axis of the positioning hole 323 coincides with the axis of the first positioning component assembly hole 312, the end of the positioning component 33 penetrates the side of the base body 1 and extends out of the first positioning component assembly hole 312 to position and fix the movable end 322 of the slide rail 32.

[0040] like Figure 3 As shown, a plurality of second positioning component assembly holes 11 are arranged on the outer surface of the base body 1, and the second positioning component assembly holes 11 match the first positioning component assembly holes 312. A third positioning component assembly hole 12 connected to the second positioning component assembly hole 11 is arranged on the inner side surface of the base body 1, and an internal thread is arranged on the inner side of the proximal end portion of the third positioning component assembly hole 12, and the gear screw sleeve 334 is coaxially threadedly assembled on the inner side of the proximal end portion of the third positioning component assembly hole 12.

[0041] Figure 4 FIG. 1 is a schematic diagram of the structure of the positioning assembly in the telescopic aircraft tail connection device according to an embodiment of the present invention. Figure 4 As shown, the positioning assembly 33 includes a positioning pin 331, a positioning pin pull ring 332, a compression spring 333 and a shift screw sleeve 334. The positioning pin 331 is composed of a positioning portion 335, a shift protrusion 336 and a pin body portion 337 which are integrally connected. Figure 4 and Figure 3 As shown, the end of the positioning portion 335 is hemispherical and the diameter of the positioning portion 335 is not larger than the inner diameter of the positioning hole 323, a pull ring assembly hole 338 is set at the end of the pin body 337, one end of the positioning pin pull ring 332 is coaxially fixedly assembled in the pull ring assembly hole 338, the shape of the shift protrusion 336 matches the first positioning component assembly hole 312, the shift screw sleeve 334 is coaxially sleeved on the outside of the pin body 337 and fixedly assembled on the base body 1, and the compression spring 333 is coaxially sleeved on the outside of the pin body 337 between the shift protrusion 336 and the shift screw sleeve 334.

[0042] Figure 5 FIG. 1 is a schematic diagram of the structure of the guide rail in the telescopic aircraft tail connection device according to an embodiment of the present invention. Figure 5 As shown, a sliding groove 324 is provided on the inner side surface of the end where the mobile end 322 is assembled with the slide rail groove 311, and the sliding groove 324 is connected to a plurality of positioning holes 323 in the length direction of the mobile end 322. The groove width of the sliding groove 324 is smaller than the diameter of the positioning holes 323, and the center line of the groove width of the sliding groove 324 passes through the axis of the plurality of positioning holes 323. During the sliding process of the slide rail 32, the positioning pin 331 always keeps in contact with the mobile end 322 of the slide rail 32, and automatically slides into the positioning hole 323 on the mobile end 322 through the sliding groove 324, thereby realizing a large range and multi-level rough positioning of the telescopic aircraft tail connection device.

[0043] Figure 6 This is a partial structural diagram of the second adjustment assembly and the connecting ring body in the telescopic aircraft tail connecting device according to an embodiment of the present invention. Figure 7 FIG. 1 is a structural diagram of a second adjustment component in a retractable aircraft tail connection device according to an embodiment of the present invention, Figure 6 , Figure 1 , Figure 5 and Figure 7 As shown, the fixed end of the slide rail 32 and the fixed seat 46 of the second adjustment component 4 are matched and fixedly assembled on the outer side and inner side of the connecting ring body 2 respectively, and a plurality of first movable grooves 21 are arranged on the side of the connecting ring body 2, and a plurality of first slide rail assembly holes 22 and a plurality of first fixed seat assembly holes 23 are symmetrically arranged on both sides of the first movable groove 21; a second movable groove 325 is arranged in the middle part of the fixed end 321 of the slide rail 32, and a plurality of second slide rail assembly holes 326 and a second fixed seat assembly hole 327 are symmetrically arranged on both sides of the second movable groove 325; a third movable groove 461 is arranged in the middle part of the fixed seat 46, and a plurality of third fixed seat assembly holes 462 are symmetrically arranged on both sides of the third movable groove 461; the first movable groove 21, the second movable groove 325 and the third movable groove 461 match each other; the first slide rail assembly hole 22 matches the second slide rail assembly hole 326, and the slide rail 32 is fixedly assembled on the outer side of the connecting ring body 2 by fasteners assembled in the first slide rail assembly hole 22 and the second slide rail assembly hole 326. The first fixing seat assembly hole 23, the second fixing seat assembly hole 327 and the third fixing seat assembly hole 462 match each other, and the fixing seat 46 is fixedly assembled on the inner side surface of the connecting ring body 2 by fasteners assembled in the first fixing seat assembly hole 23, the second fixing seat assembly hole 327 and the third fixing seat assembly hole 462.

[0044] The application principle of the retractable aircraft tail connection device of the exemplary embodiment of the present invention is as follows:

[0045] During the aircraft preparation phase on land, Figure 8As shown, the position of the connecting ring body 2 is adjusted so that the connecting ring body 2 fits with the end surface of the base body 1, and the positioning pin 331 is positioned and matched with the positioning hole 323 on the slide rail 32 closest to the fixed end 321, so as to minimize the physical size of the telescopic aircraft tail connection device; in the aircraft loading stage, the aircraft enters the deployment device 5, lifts the positioning pin 331 and pulls the connecting ring body 2, and according to the positioning distance of the deployment device 5 of different models, selects a positioning hole 323 on the slide rail 32 and the positioning pin 331 for positioning and matching, so as to achieve rough positioning; as shown in FIG. Fig. 9 and Fig.10 As shown, rotating the threaded adjustment shaft 43 can make the adjustment slider 44 and the threaded pin 45 move linearly along the axial direction of the threaded adjustment shaft 43. When the positioning interface position of the deployment device 5 is reached, the threaded pin 45 can be rotated to make the threaded pin 45 move along the axis of the threaded pin assembly hole 443, that is, move linearly along the diameter direction of the connecting ring body 2, so that the threaded pin 45 and the positioning pin hole 501 (as shown in FIG. Fig. 9 as shown) or positioning annular groove 502 (as shown Fig.10 The telescopic aircraft tail connection device and the deployment device 5 are fixed and accurately positioned. In practical applications, Figure 2 and Figure 7 As shown, an adjustment end portion 431 is provided at one end of the threaded adjustment shaft 43 to facilitate the rotation of the threaded adjustment shaft 43 .

[0046] The telescopic aircraft tail connection device of this embodiment realizes a wide range of axial adjustment and precise axial positioning of the aircraft tail connection device through the first adjustment component and the second adjustment component, while ensuring that different deployment devices have a balance between long adjustment stroke and high positioning accuracy; it is suitable for aircraft of different specifications and deployment devices of different models, has a wide range of mounting and use platform space, and can significantly reduce the user's maintenance cost and procurement cost; it is suitable for deployment operations in a small space, improves the convenience of deployment operations, and reduces operation intensity.

[0047] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A telescopic aircraft tail connection device, characterized in that: The device comprises a base body, a connecting ring body, a plurality of first adjusting components and a plurality of second adjusting components, wherein the first adjusting component comprises a slide rail seat, a slide rail and a positioning component, the inner side surface of the slide rail seat is fixedly assembled on the outer side surface of the base body, the outer side surface of the slide rail seat is provided with a slide rail groove, the fixed end of the slide rail is fixedly assembled on the outer side surface of the connecting ring body, and the movable end of the slide rail can be movably assembled in the slide rail groove and positioned by the positioning component; the second adjusting component comprises an adjusting seat, a guide rod, a threaded adjustment shaft, an adjusting slider, a threaded pin and a fixed seat, wherein the fixed seat is fixedly assembled on the inner side surface of the connecting ring body, the adjusting seat and the fixed seat are fixedly assembled, the guide rod and the threaded adjustment shaft are fixedly assembled inside the adjusting seat in parallel with each other along the axial direction of the connecting ring body, the two ends of the adjusting slider are respectively sleeved on the outer sides of the guide rod and the threaded adjustment shaft, the middle part of the adjusting slider is sleeved on the outer side of the threaded pin, rotating the threaded adjustment shaft can make the adjusting slider and the threaded pin move linearly along the axial direction of the threaded adjustment shaft, and rotating the threaded pin can make the threaded pin move linearly along the diameter direction of the connecting ring body.

2. The retractable aircraft tail connection device according to claim 1, characterized in that: A first positioning component assembly hole that passes through the slide rail groove is set at one end of the slide rail seat, and multiple positioning holes are set on the movable end of the slide rail. One end of the positioning component is assembled in the first positioning component assembly hole and can move linearly along the axis of the first positioning component assembly hole. When the movable end of the slide rail moves along the slide rail groove of the slide rail seat so that the axis of the positioning hole coincides with the axis of the first positioning component assembly hole, the end of the positioning component passes through the side of the base body and extends out of the first positioning component assembly hole to position and fix the movable end of the slide rail.

3. The retractable aircraft tail connection device according to claim 2, characterized in that: A sliding groove is arranged on the inner side surface of the end where the moving end is assembled with the slide rail groove. The sliding groove is connected to a plurality of positioning holes in the length direction of the moving end. The width of the sliding groove is smaller than the diameter of the positioning hole and the midline of the width of the sliding groove passes through the axis of the plurality of positioning holes.

4. The telescopic aircraft tail connection device according to claim 3, characterized in that: The positioning assembly comprises a positioning pin, a positioning pin pull ring, a compression spring and a shift screw sleeve. The positioning pin is composed of a positioning part, a shift protrusion and a pin body part which are integrally connected.

5. The retractable aircraft tail connection device according to claim 4, characterized in that: The end of the positioning part is hemispherical and the diameter of the positioning part is not larger than the inner diameter of the positioning hole. A pull ring assembly hole is set at the end of the pin body. One end of the positioning pin pull ring is coaxially fixedly assembled in the pull ring assembly hole. The shape of the gear protrusion matches the assembly hole of the first positioning component. The gear screw sleeve is coaxially arranged on the outside of the pin body and fixedly assembled on the base body. The compression spring is coaxially arranged on the outside of the pin body between the gear protrusion and the gear screw sleeve.

6. The telescopic aircraft tail connection device according to claim 5, characterized in that: A plurality of second positioning component assembly holes are arranged on the outer surface of the base body, and the second positioning component assembly holes match the first positioning component assembly holes. A third positioning component assembly hole connected to the second positioning component assembly hole is arranged on the inner surface of the base body, and an internal thread is arranged on the inner side of the proximal end portion of the third positioning component assembly hole, and the gear screw sleeve is coaxially threadedly assembled on the inner side of the proximal end portion of the third positioning component assembly hole.

7. The telescopic aircraft tail connection device according to claim 1, characterized in that: An adjustment assembly cavity is arranged inside the adjustment seat, a first assembly hole and a second assembly hole parallel to each other pass through the adjustment seat assembly cavity and are symmetrically arranged on the adjustment seat body, the guide rod is coaxially assembled in the second assembly hole, and the threaded adjustment shaft is coaxially assembled in the first assembly hole.

8. The retractable aircraft tail connection device according to claim 1, characterized in that: An adjustment threaded hole matching the threaded adjustment shaft is arranged at one end of the adjustment slider, a guide hole matching the guide rod is arranged at the other end of the adjustment slider, a threaded pin assembly hole is arranged in the middle part of the adjustment slider, the threaded pin is coaxially assembled in the threaded pin assembly hole, and the threaded pin can be moved along the axis of the threaded pin assembly hole by rotating the threaded pin.

9. The retractable aircraft tail connection device according to claim 1, characterized in that: The fixed end of the slide rail and the fixed seat of the second adjustment assembly are matched and fixedly assembled on the outer side and inner side of the connecting ring body respectively. A plurality of first movable grooves are arranged on the side of the connecting ring body, a second movable groove is arranged in the middle part of the fixed end of the slide rail, and a third movable groove is arranged in the middle part of the fixed seat. The first movable groove, the second movable groove and the third movable groove match each other.

10. The retractable aircraft tail connection device according to claim 9, characterized in that: A plurality of first slide rail assembly holes and a plurality of first fixed seat assembly holes are symmetrically arranged on both sides of the first movable groove, a plurality of second slide rail assembly holes and a second fixed seat assembly holes are symmetrically arranged on both sides of the second movable groove, a plurality of third fixed seat assembly holes are symmetrically arranged on both sides of the third movable groove, the first slide rail assembly hole matches the second slide rail assembly hole, and the first fixed seat assembly hole, the second fixed seat assembly hole match the third fixed seat assembly hole.

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