CN218907595U

CN218907595U - Tail folding mechanism with self-locking function and capable of eliminating fit clearance

Info

Publication number: CN218907595U
Application number: CN202222944080.9U
Authority: CN
Inventors: 贺军; 房佳琦; 周雷海; 邓登宝
Original assignee: Zhuhai Tianqing Aerospace Technology Co ltd
Current assignee: Zhuhai Tianqing Aerospace Technology Co ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-04-25
Anticipated expiration: 2032-11-04

Abstract

The utility model provides a tail folding mechanism with self-locking and capable of eliminating fit gaps, which comprises a tail connecting piece and a tail base, wherein the tail connecting piece is connected with the tail base through a connecting mechanism; the tail fin base is internally provided with a locking mechanism for locking the position of the tail fin connecting piece; the bottom end of the tail wing connecting piece is integrally formed with an arc-shaped connecting plate, and a slope-shaped chute is formed in one side of the arc-shaped connecting plate; the folding mechanism has a simple structure, the force for locking the tail wing is provided by the spring, and the folding mechanism is limited by the lock tongue, so that the folding mechanism has a simple structure and good performance, and the design of the folding mechanism is simplified; 2. the utility model has high reliability, high flight quality and low flutter probability of the unmanned aerial vehicle. Utilize the spring and the design on structure inclined plane, eliminated the fit clearance between fin connecting piece and the fin base, reduced the probability that fin structure takes place to vibrate, improved the flight quality, reduced the probability that unmanned aerial vehicle wholly takes place to vibrate.

Description

Tail folding mechanism with self-locking function and capable of eliminating fit clearance

Technical Field

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a tail folding mechanism with self-locking function and capable of eliminating fit clearance.

Background

With the rapid development of aviation technology, unmanned aerial vehicles can be used as police, urban management, agriculture, geology, weather, electric power, rescue and relief work, video shooting and the like. Most unmanned aerial vehicles take off in a launching or gun barrel launching mode, and the unmanned aerial vehicle taking off in the mode needs to fold and pack the tail wing before taking off and unfold the wing after taking off. Most unmanned aerial vehicle tails on the market have no locking function after being unfolded, the locking mechanism is complex or the coordination among structures is not considered, so that the possibility of refolding exists after the unmanned aerial vehicle tails are unfolded, the coordination clearance exists after the structures are assembled, the tail wings are difficult to refold after the tasks are finished, and the reliability, maintainability and operability of the unmanned aerial vehicle are reduced;

therefore, a tail folding mechanism with self-locking and capable of eliminating fit clearance is provided.

Disclosure of Invention

Accordingly, it is desirable to provide a tail folding mechanism with self-locking and capable of eliminating fit-up gaps, so as to solve or alleviate the technical problems in the prior art, and at least provide a beneficial choice.

The technical scheme of the embodiment of the utility model is realized as follows: the tail folding mechanism with the self-locking function and the capability of eliminating the fit clearance comprises a tail connecting piece and a tail base, wherein the tail connecting piece is connected with the tail base through a connecting mechanism;

the tail fin base is internally provided with a locking mechanism for locking the position of the tail fin connecting piece;

the bottom end of the tail wing connecting piece is integrally formed with an arc-shaped connecting plate, and a slope-shaped chute is formed in one side of the arc-shaped connecting plate;

the locking mechanism comprises a locking tongue, a cup head screw and a spring;

one end of the locking tongue is inserted into the chute, two springs are arranged in the locking tongue, two waist-shaped grooves are symmetrically formed in the outer side of the tail fin base, the cup head screw slides in the waist-shaped grooves, and one end of the cup head screw penetrates through one side of the locking tongue.

Further preferred is: the connecting mechanism comprises a rotating shaft, a torsion spring guide pipe, a copper sleeve, a torsion spring and a cotter pin;

the outside cover of torsional spring pipe is equipped with the torsional spring, the torsional spring pipe cover is located the outside of pivot.

Further preferred is: the bottom bilateral symmetry integrated into one piece of fin connecting piece has two first swivel, the outside top symmetry integrated into one piece of fin base has two second swivel, two the outer wall both sides of pivot are located to first swivel and two second swivel symmetry cover, the outside cover of pivot is equipped with two copper sheathing, the outer wall laminating of copper sheathing is in the inboard of first swivel and second swivel.

Further preferred is: the outer side of the rotating shaft is penetrated with a cotter pin.

Further preferred is: the tail fin base is internally provided with a containing cavity, and the locking tongue is arranged in the containing cavity.

Further preferred is: the locking mechanism also comprises a locking tongue cover plate and countersunk head screws;

the locking tongue cover plate is arranged at the bottom of the locking tongue and is fixed on the inner wall of the containing cavity through the cup head screw.

Further preferred is: the inclined angle of the chute is 15-45 degrees of the vertical horizontal plane.

By adopting the technical scheme, the embodiment of the utility model has the following advantages:

1. the folding mechanism has a simple structure, the force for locking the tail wing is provided by the spring, and the folding mechanism is limited by the lock tongue, so that the folding mechanism has a simple structure and good performance, and the design of the folding mechanism is simplified;

2. the utility model has high reliability, high flight quality and low flutter probability of the unmanned aerial vehicle. Due to the design of the springs and the structural inclined plane, the fit gap between the tail wing connecting piece and the tail wing base is eliminated, the probability of vibration of the tail wing structural member is reduced, the flight quality is improved, the probability of vibration of the whole unmanned aerial vehicle is reduced, and the reliability of the unmanned aerial vehicle during flight is improved;

3. the utility model has the advantages of detachable structure and convenient maintenance. The folding mechanism, the tail wing, the lock tongue, the tail wing connecting piece and the parts are all connected by bolts, so that the folding mechanism is simple in structure and convenient to detach;

4. the utility model has high stability. The locking function of the whole mechanism is realized by a spring, the force transmission mode is simple, the spring is limited by a lock tongue in the extending process, and the lock tongue is limited by a tail fin base in the moving process, so that the function of locking the tail fin is achieved;

5. the utility model has interchangeability. The empennage folding mechanism and the empennage are separable and are simple to separate and operate, and when one of the empennage folding mechanism and the empennage is in fault, the folding mechanism or the empennage can be independently replaced, so that the unmanned aerial vehicle can rapidly participate in a flight task again;

6. the utility model has economy. The fin folding mechanism consists of a fin connecting piece, a torsion spring, a fin rotating shaft, a torsion spring guide rod, two copper sleeves, a fin base, a locking tongue cover plate, two springs and a fixing structure between parts. The cost is low, the structure is light and handy, and the requirements of partial unmanned aerial vehicles on the market at present are met.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the tail attachment of the present utility model;

FIG. 3 is a schematic view of a connection structure of a connection mechanism and a tail base of the present utility model;

FIG. 4 is a schematic view of the connection structure of the connection mechanism and tail connector of the present utility model;

FIG. 5 is a schematic view of a connection structure of a lock mechanism and a tail connector according to the present utility model;

FIG. 6 is a second schematic view of the connection between the lock mechanism and the tail connector of the present utility model;

FIG. 7 is a schematic view of the structure of the tail base of the present utility model.

Reference numerals: 1. a tail connection; 11. a first swivel; 12. an arc-shaped connecting plate; 121. a chute; 2. a connecting mechanism; 21. a rotating shaft; 22. a torsion spring conduit; 23. a copper sleeve; 24. a torsion spring; 25. a cotter pin; 3. a tail fin base; 31. a cavity; 32. a waist-shaped groove; 33. a second swivel; 4. a locking mechanism; 41. a locking tongue; 42. a cup head screw; 43. locking the tongue cover plate; 44. a spring; 45. countersunk head screws.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-7, the embodiment of the utility model provides a tail folding mechanism with self-locking and capable of eliminating fit clearance, which comprises a tail connecting piece 1 and a tail base 3, wherein the tail connecting piece 1 is connected with the tail base 3 through a connecting mechanism 2;

the tail base 3 is internally provided with a locking mechanism 4 for locking the position of the tail connecting piece 1;

the bottom end of the tail wing connecting piece 1 is integrally formed with an arc-shaped connecting plate 12, and one side of the arc-shaped connecting plate 12 is provided with a slope-shaped chute 121;

the locking mechanism 4 comprises a locking tongue 41, a cup head screw 42 and a spring 44;

one end of the locking tongue 41 is inserted into the chute 121, two springs 44 are arranged in the locking tongue 41, two waist-shaped grooves 32 are symmetrically arranged on the outer side of the tail fin base 3, the cup head screw 42 slides in the waist-shaped grooves 32, and one end of the cup head screw 42 penetrates through one side of the locking tongue 41;

when the tail connector 1 with the tail is unfolded due to the elastic force of the torsion spring 24, the arc-shaped connecting plate 12 at the lower end of the tail connector 1 presses and pushes the locking tongue 41, and when the tail connector 1 is unfolded to a final state, the arc-shaped connecting plate 12 at the lower end of the tail connector 1 is provided with the chute 121, and the locking tongue 41 slides back to the original position due to the elastic force of the spring 44 and is embedded into the chute 121, so that the locking of the tail is realized.

In this embodiment, specific: the connecting mechanism 2 comprises a rotating shaft 21, a torsion spring guide pipe 22, a copper sleeve 23, a torsion spring 24 and a cotter pin 25;

the outer side of the torsion spring guide pipe 22 is sleeved with a torsion spring 24, and the torsion spring guide pipe 22 is sleeved on the outer side of the rotating shaft 21;

with the above arrangement, the torsion spring 24 is used to provide elastic force, and the tail locking work is completed in cooperation with the locking tongue 41.

In this embodiment, specific: two first swivel rings 11 are symmetrically and integrally formed on two sides of the bottom of the tail wing connecting piece 1, two second swivel rings 33 are symmetrically and integrally formed on the top of the outer side of the tail wing base 3, the two first swivel rings 11 and the two second swivel rings 33 are symmetrically sleeved on two sides of the outer wall of the rotating shaft 21, two copper sleeves 23 are sleeved on the outer side of the rotating shaft 21, and the outer wall of each copper sleeve 23 is attached to the inner sides of the corresponding first swivel ring 11 and the corresponding second swivel ring 33; the first swivel 11 and the second swivel 33 are made in cooperation with the copper sleeve 23 to provide the swivel 21.

In this embodiment, specific: a cotter pin 25 penetrates through the outer side of the rotating shaft 21; the cotter pin 25 serves to prevent the rotation shaft 21 from being separated from the first rotation ring 11 and the second rotation ring 33.

In this embodiment, specific: the inside of fin base 3 is equipped with holds the chamber 31, and locking tongue 41 sets up in the inside of holding the chamber 31, holds the chamber 31 and provides accommodation space for locking tongue 41.

In this embodiment, specific: the locking mechanism 4 further comprises a locking tongue cover 43 and a countersunk screw 45;

the locking tongue cover plate 43 is arranged at the bottom of the locking tongue 41, and the locking tongue cover plate 43 is fixed on the inner wall of the accommodating cavity 31 through the cup head screw 42; the locking tongue cover 43 serves to define the position of the locking tongue 41.

In this embodiment, specific: the inclined angle of the chute 121 is 15-45 ° to the vertical horizontal.

The utility model works when in work: when the tail connecting piece 1 with the tail is unfolded due to the elasticity of the torsion spring 24, the arc-shaped connecting plate 12 at the lower end of the tail connecting piece 1 extrudes and pushes the locking tongue 41, and when the tail connecting piece 1 is unfolded to a final state, the arc-shaped connecting plate 12 at the lower end of the tail connecting piece 1 is provided with the chute 121, and the locking tongue 41 slides back to the original position due to the elasticity of the spring 44 and is embedded into the chute 121, so that the locking of the tail is realized;

after the locking is finished, as the front end of the locking tongue 41 is designed to be matched with the inclined groove 121 of the arc-shaped connecting plate 12, after the spring 44 presses the locking tongue 41, the resultant force provided by the spring 44 to the inclined surface is divided into the force for locking the tail wing and the force for pressing the tail wing folding piece, so that the fit clearance between the tail wing connecting piece and the tail wing base is eliminated;

when the task is completed, the locking tongue 41 can be moved and the tail wing can be retracted only by pulling the countersunk head screw.

The tail connecting piece 1 is connected with the tail base 3 through the rotating shaft 21, the torsion spring guide tube 22 and the cotter pin 25, the spring 44 can be arranged in the groove by processing and controlling the size of the groove in the locking tongue 41, and the waist-shaped groove 32 is formed in the tail base 3, so that the locking tongue 41 can slide back and forth, and locking and unlocking functions are realized. The whole set of folding mechanism has simple structure, low production cost and high reliability.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a take auto-lock and fin folding mechanism that can eliminate fit clearance, includes fin connecting piece (1) and fin base (3), its characterized in that: the tail wing connecting piece (1) is connected with the tail wing base (3) through the connecting mechanism (2);

a locking mechanism (4) for locking the position of the tail connecting piece (1) is arranged in the tail base (3);

the bottom end of the tail wing connecting piece (1) is integrally formed with an arc-shaped connecting plate (12), and one side of the arc-shaped connecting plate (12) is provided with a slope-shaped chute (121);

the locking mechanism (4) comprises a locking tongue (41), a cup head screw (42) and a spring (44);

one end of the locking tongue (41) is inserted into the chute (121), two springs (44) are arranged in the locking tongue (41), two waist-shaped grooves (32) are symmetrically formed in the outer side of the tail fin base (3), the cup head screw (42) slides in the waist-shaped grooves (32), and one end of the cup head screw (42) penetrates through one side of the locking tongue (41).

2. The tail folding mechanism with self-locking and fit clearance elimination as claimed in claim 1, wherein: the connecting mechanism (2) comprises a rotating shaft (21), a torsion spring guide pipe (22), a copper sleeve (23), a torsion spring (24) and an opening pin (25);

the outside cover of torsional spring pipe (22) is equipped with torsional spring (24), the outside of pivot (21) is located to torsional spring pipe (22) cover.

3. The tail folding mechanism with self-locking and fit clearance elimination as claimed in claim 2, wherein: the fin connecting piece (1) bottom bilateral symmetry integrated into one piece has two first swivel (11), the outside top symmetry integrated into one piece of fin base (3) has two second swivel (33), two the outer wall both sides of pivot (21) are located to first swivel (11) and two second swivel (33) symmetry cover, the outside cover of pivot (21) is equipped with two copper sheathing (23), the outer wall laminating of copper sheathing (23) is in the inboard of first swivel (11) and second swivel (33).

4. The tail folding mechanism with self-locking and fit clearance elimination as claimed in claim 2, wherein: an opening pin (25) penetrates through the outer side of the rotating shaft (21).

5. The tail folding mechanism with self-locking and fit clearance elimination as claimed in claim 1, wherein: the tail fin base (3) is internally provided with a containing cavity (31), and the locking tongue (41) is arranged in the containing cavity (31).

6. The tail folding mechanism with self-locking and fit clearance elimination as claimed in claim 1, wherein: the locking mechanism (4) further comprises a locking tongue cover plate (43) and a countersunk head screw (45);

the locking tongue cover plate (43) is arranged at the bottom of the locking tongue (41), and the locking tongue cover plate (43) is fixed on the inner wall of the containing cavity (31) through a cup head screw (42).

7. The tail folding mechanism with self-locking and fit clearance elimination as claimed in claim 1, wherein: the inclined angle of the chute (121) is 15-45 degrees of the vertical horizontal plane.