CN212890902U

CN212890902U - Retractable shock-proof type unmanned aerial vehicle undercarriage

Info

Publication number: CN212890902U
Application number: CN202021875605.2U
Authority: CN
Inventors: 管祥民; 吕人力
Original assignee: Zhejiang Jiande General Aviation Research Institute; Civil Aviation Management Institute Of China
Current assignee: Zhejiang Jiande General Aviation Research Institute; Civil Aviation Management Institute Of China
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-04-06
Anticipated expiration: 2030-09-01

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to a retractable shock-absorbing type unmanned aerial vehicle undercarriage, which comprises a mounting frame, a connecting plate is arranged at the lower side of the mounting frame, a fixed plate is arranged at the lower side of the connecting plate, a lifting mechanism is arranged between the fixed plate and the connecting plate, the lifting mechanism is connected with the adjusting mechanism arranged at the top of the connecting plate, the inner side of the fixed plate is provided with the damping mechanism, the utility model, by arranging the lifting mechanism, the unmanned aerial vehicle can adjust the shape of the landing gear in the flying and landing processes, the unmanned aerial vehicle can fly and land conveniently, by arranging the connecting rod, the stability of the lifting mechanism can be enhanced, and by arranging the damping mechanism and utilizing the multiple damping of the second spring, the first magnet and the second magnet, can reduce the influence that vibrations produced unmanned aerial vehicle, through setting up first spring, stability when can further improve unmanned aerial vehicle descending.

Description

Retractable shock-proof type unmanned aerial vehicle undercarriage

Technical Field

The utility model relates to an unmanned air vehicle technique field specifically is a collapsible shock-proof type unmanned aerial vehicle undercarriage.

Background

The unmanned plane is called unmanned plane for short, and is called UAV in English, and is an unmanned aerial vehicle operated by using a radio remote control device and a self-contained program control device. Unmanned aerial vehicles are in fact a general term for unmanned aerial vehicles, and can be defined from a technical perspective as follows: unmanned helicopters, unmanned fixed wing aircraft, unmanned multi-rotor aircraft, unmanned airships, and unmanned parawing aircraft. Compared with manned aircraft, it has the advantages of small volume, low cost, convenient use, low requirement on the operational environment, strong battlefield viability and the like. Since the unmanned aircraft has important significance for future air battles, the research and development work of the unmanned aircraft is carried out in all major military countries in the world.

The existing unmanned aerial vehicle undercarriage is fixedly arranged, so that the structure and the function are too simple, and the form can not be adjusted according to the flight and landing of the unmanned aerial vehicle; meanwhile, the damping device of the existing unmanned aerial vehicle undercarriage is single, so that the unmanned aerial vehicle is easily damaged when the stability of the unmanned aerial vehicle during landing is influenced, and therefore, a retractable damping type unmanned aerial vehicle undercarriage is urgently required to be developed aiming at the current situation, and the defects in the current practical application are overcome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collapsible shock-proof type unmanned aerial vehicle undercarriage to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a collapsible shock-proof type unmanned aerial vehicle undercarriage, includes the mounting bracket, the mounting bracket downside is provided with the connecting plate, the connecting plate downside is provided with the fixed plate, be provided with elevating system between fixed plate and the connecting plate, elevating system is connected with the adjustment mechanism who sets up at the connecting plate top, the fixed plate inboard is provided with damper.

As a further aspect of the present invention: elevating system includes that a plurality of fixed connections set up the dead lever at the fixed plate top, the inboard threaded connection of dead lever is provided with the threaded rod, the threaded rod top is connected with the adjustment mechanism who sets up at the connecting plate top, dead lever outside fixed connection is provided with the connecting block, the inboard articulated connecting rod that is provided with of connecting block, the connecting rod other end is articulated with the slider, slider and the spout sliding connection who sets up in the connecting plate bottom, slider top fixed connection is provided with the stopper, stopper and the spacing groove sliding connection who sets up in the connecting plate inboard.

As a further aspect of the present invention: adjustment mechanism includes that fixed connection sets up the fixed frame at the connecting plate top, fixed frame inboard bearing is connected and is provided with a plurality of bull sticks, left side the bull stick top is provided with the motor with fixed frame bolted connection, and is a plurality of the equal fixed connection in the bull stick outside is provided with the band pulley, connect through the belt between the band pulley, bull stick bottom and threaded rod fixed connection.

As a further aspect of the present invention: damper is including setting up the bottom plate at the fixed plate downside, bottom plate top fixed connection be provided with fixed plate sliding connection's fixed block, the fixed block top is provided with the recess, the recess inboard is provided with the gag lever post with fixed block fixed connection, the equal sliding connection in both ends outside is provided with movable block, both sides about the gag lever post fixed connection is provided with the second spring between the movable block, it is provided with the bracing piece to articulate between movable block top and the fixed plate, the movable block is kept away from second spring one side fixed connection and is provided with first magnet, equal fixed connection is provided with second magnet on the cell wall of both ends about the recess, first magnet is the same with the relative one side magnetism of second magnet.

As a further aspect of the present invention: the mounting bracket bottom fixed connection is provided with a plurality of slide bars with connecting plate sliding connection, slide bar bottom fixed connection is provided with the limiting plate, the slide bar is located the part outside between mounting bracket and the connecting plate and is provided with first spring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the lifting mechanism, the unmanned aerial vehicle can adjust the shape of the undercarriage in the flying and landing processes, so that the unmanned aerial vehicle can fly and land conveniently;

2. the connecting rod is arranged, so that the stability of the lifting mechanism can be enhanced, and the damping mechanism is arranged, so that the influence of vibration on the unmanned aerial vehicle can be reduced by utilizing multiple damping of the second spring, the first magnet and the second magnet, and the stability of the unmanned aerial vehicle during landing can be improved;

3. through setting up first spring, stability when can further improve unmanned aerial vehicle and descend.

Drawings

Fig. 1 is a schematic structural view of a retractable shock-absorbing landing gear of an unmanned aerial vehicle.

Fig. 2 is a front view of a retractable shock-absorbing drone landing gear.

Fig. 3 is a top view of an adjustment mechanism in a retractable shock-absorbing drone landing gear.

In the figure: 1-a mounting frame, 2-a connecting plate, 3-a fixed frame, 4-a sliding rod, 5-a first spring, 6-a limiting plate, 7-a motor, 8-a rotating rod, 9-a threaded rod, 10-a fixed rod, 11-a fixed plate, 12-a connecting rod, 13-a sliding block, 14-a sliding groove, 15-a bottom plate, 16-a fixed block, 17-a groove, 18-a limiting rod, 19-a movable block, 20-a supporting rod, 21-a second spring, and 22-a first magnet.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

Example 1

Referring to fig. 1-3, in the embodiment of the utility model, a collapsible shock-proof type unmanned aerial vehicle undercarriage, including mounting bracket 1, 1 downside of mounting bracket is provided with connecting

plate

2, 2 downside of connecting plate are provided with fixed plate 11, be provided with elevating system between fixed plate 11 and the connecting plate 2, elevating system is connected with the adjustment mechanism who sets up at 2 tops of connecting plate, 11 inboard of fixed plate is provided with damper.

Example 2

In this embodiment, the lifting mechanism comprises a plurality of fixing rods 10 fixedly connected and arranged on the top of a fixing plate 11, a threaded rod 9 is connected with the inner side of the fixed rod 10 through threads, the top end of the threaded rod 9 is connected with an adjusting mechanism arranged at the top of the connecting plate 2, the outer side of the fixed rod 10 is fixedly connected with a connecting block, the inner side of the connecting block is hinged with a connecting rod 12, the other end of the connecting rod 12 is hinged with a sliding block 13, the sliding block 13 is connected with a sliding chute 14 arranged at the bottom of the connecting plate 2 in a sliding way, the top of the sliding block 13 is fixedly connected with a limiting block which is connected with a limiting groove arranged at the inner side of the connecting plate 2 in a sliding way, through setting up elevating system, unmanned aerial vehicle can adjust the form of undercarriage at flight and descending in-process, makes things convenient for unmanned aerial vehicle's flight and descending, through setting up connecting rod 12, can strengthen elevating system's stability.

In this embodiment, adjustment mechanism includes that fixed connection sets up the fixed frame 3 at 2 tops of connecting plate, 3 inboard bearing connections of fixed frame are provided with a plurality of bull sticks 8, the left side 8 tops of bull sticks are provided with motor 7 with fixed frame 3 bolted connection, and are a plurality of the equal fixed connection in the 8 outsides of bull sticks is provided with the band pulley, connect through the belt between the band pulley, 8 bottoms of bull sticks and 9 fixed connection of threaded rod.

In this embodiment, the damping mechanism includes a bottom plate 15 disposed on the lower side of the fixed plate 11, a fixed block 16 slidably connected with the fixed plate 11 is fixedly connected to the top of the bottom plate 15, a groove 17 is disposed on the top of the fixed block 16, a limiting rod 18 fixedly connected with the fixed block 16 is disposed inside the groove 17, a movable block 19 is slidably connected to the outer side of each of the left and right ends of the limiting rod 18, a second spring 21 is fixedly connected between the movable blocks 19, a support rod 20 is hinged between the top end of the movable block 19 and the fixed plate 11, a first magnet 22 is fixedly connected to the side of the movable block 19 far away from the second spring 21, a second magnet is fixedly connected to the side of the groove 17, the first magnet 22 and the second magnet have the same magnetism on the opposite side, and the damping mechanism is disposed by using the second spring 21, The multiple shock attenuation of first magnet 22 and second magnet can reduce the influence that vibrations produced unmanned aerial vehicle, does benefit to the stability when improving unmanned aerial vehicle and descends.

In this embodiment, 1 bottom fixed connection of mounting bracket is provided with a plurality of slide bar 4 with 2 sliding connection of connecting plate, 4 bottom fixed connection of slide bar are provided with limiting plate 6, the slide bar 4 is located and is provided with first spring 5 in the part outside between mounting bracket 1 and the connecting plate 2, through setting up first spring 5, can further improve the stability when unmanned aerial vehicle descends.

This collapsible shock-proof type unmanned aerial vehicle undercarriage, through setting up elevating system, unmanned aerial vehicle can adjust the form of undercarriage at flight and descending in-process, make things convenient for unmanned aerial vehicle's flight and descending, through setting up connecting rod 12, elevating system's stability can be strengthened, through setting up damper, utilize second spring 21, the multiple shock attenuation of first magnet 22 and second magnet, can reduce the influence that vibrations produced unmanned aerial vehicle, do benefit to the stability when improving unmanned aerial vehicle descends, through setting up first spring 5, stability when can further improve unmanned aerial vehicle descends.

The utility model discloses a theory of operation is: control motor 7 rotates, motor 7 drives bull stick 8 and rotates, bull stick 8 rotates the lift that can realize the undercarriage through driving threaded rod 9, when unmanned aerial vehicle flies, fixed plate 11 rises, reduce the volume of undercarriage, thereby reduce the resistance of air to the undercarriage, so that unmanned aerial vehicle flies, when unmanned aerial vehicle descends, fixed plate 11 descends, the volume of increase undercarriage, increase air resistance, thereby improve descending speed, it is more steady to make the descending simultaneously, utilize second spring 21, the multiple shock attenuation of first magnet 22 and second magnet, can reduce the influence that vibrations produced unmanned aerial vehicle, first spring 5 can further improve the stability when unmanned aerial vehicle descends.

The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a collapsible shock-proof type unmanned aerial vehicle undercarriage, includes mounting bracket (1), its characterized in that, mounting bracket (1) downside is provided with connecting plate (2), connecting plate (2) downside is provided with fixed plate (11), be provided with elevating system between fixed plate (11) and connecting plate (2), elevating system is connected with the adjustment mechanism who sets up at connecting plate (2) top, fixed plate (11) inboard is provided with damper.

2. A retractable shock-absorbing unmanned aerial vehicle landing gear according to claim 1, wherein the lifting mechanism comprises a plurality of fixed connection rods (10) arranged at the tops of the fixed plates (11), a threaded rod (9) is arranged inside the fixed rods (10) in a threaded connection manner, the top end of the threaded rod (9) is connected with an adjusting mechanism arranged at the top of the connecting plate (2), a connecting block is arranged outside the fixed rods (10) in a fixed connection manner, a connecting rod (12) is hinged inside the connecting block, the other end of the connecting rod (12) is hinged with a sliding block (13), the sliding block (13) is in sliding connection with a sliding groove (14) arranged at the bottom of the connecting plate (2), a limiting block is arranged at the top of the sliding block (13), and the limiting block is in sliding connection with a limiting groove arranged inside the connecting plate (.

3. A retractable shock-absorbing unmanned aerial vehicle landing gear according to claim 2, wherein the adjusting mechanism comprises a fixed frame (3) fixedly connected and arranged at the top of the connecting plate (2), the fixed frame (3) is provided with a plurality of rotating rods (8) in an inner bearing connection mode, the rotating rods (8) are arranged on the left side, a motor (7) in bolt connection with the fixed frame (3) is arranged at the top of the rotating rods (8), belt pulleys are fixedly connected to the outer sides of the rotating rods (8), the belt pulleys are connected with one another through belts, and the bottom ends of the rotating rods (8) are fixedly connected with threaded rods (9).

4. A retractable shock-absorbing unmanned aerial vehicle landing gear according to claim 3, wherein the shock-absorbing mechanism comprises a bottom plate (15) arranged on the lower side of a fixed plate (11), a fixed block (16) slidably connected with the fixed plate (11) is fixedly connected to the top of the bottom plate (15), a groove (17) is formed in the top end of the fixed block (16), a limiting rod (18) fixedly connected with the fixed block (16) is arranged on the inner side of the groove (17), movable blocks (19) are slidably connected to the outer sides of the left and right ends of the limiting rod (18), second springs (21) are fixedly connected between the movable blocks (19) on the two sides, a supporting rod (20) is hinged between the top end of each movable block (19) and the fixed plate (11), and a first magnet (22) is fixedly connected to the side, far away from the second springs (21), of each movable block (, the groove wall at the left end and the right end of the groove (17) is fixedly connected with a second magnet, and the magnetism of one side, opposite to the second magnet, of the first magnet (22) is the same.

5. A retractable shock-absorbing unmanned aerial vehicle landing gear according to claim 1, wherein the mounting bracket (1) is provided with a plurality of sliding rods (4) slidably connected with the connecting plate (2) at the bottom, the sliding rods (4) are provided with limiting plates (6) at the bottom, and the sliding rods (4) are provided with first springs (5) at the outer sides of the parts between the mounting bracket (1) and the connecting plate (2).