阅读说明：本技术 一种无人机起落架及无人机 (Unmanned aerial vehicle undercarriage and unmanned aerial vehicle ) 是由 曹雷 于 2020-06-08 设计创作，主要内容包括：一种无人机起落架及无人机,该无人机起落架包括安装基座、摆动杆、第一弹性件、升降件和驱动件；安装基座安装于无人机本体上,驱动件设置于安装基座内；升降件可升降的设置于安装基座上,且其与驱动件进行驱动连接；摆动杆的第一端可转动的设置于安装基座上,第二端可支撑于地面上；第一弹性件的两端分别连接于升降件和摆动杆上；升降件具有自锁功能,升降件的升降运动可以带动第一弹性件上下移动,从而使摆动杆进行摆动,即可实现摆动杆的折叠和收纳,同时由于升降件具有自锁功能,可升降至任意位置后固定自身位置,从而使第一弹性件还可起到有效的减震作用。(An unmanned aerial vehicle undercarriage and an unmanned aerial vehicle, the unmanned aerial vehicle undercarriage comprises a mounting base, a swinging rod, a first elastic part, a lifting part and a driving part; the mounting base is mounted on the unmanned aerial vehicle body, and the driving piece is arranged in the mounting base; the lifting piece is arranged on the mounting base in a lifting manner and is in driving connection with the driving piece; the first end of the swinging rod is rotatably arranged on the mounting base, and the second end of the swinging rod can be supported on the ground; two ends of the first elastic piece are respectively connected to the lifting piece and the swinging rod; the lifting piece has self-locking function, and the elevating movement of lifting piece can drive first elastic component and reciprocate to make the swinging arms swing, can realize the folding and accomodating of swinging arms, simultaneously because the lifting piece has self-locking function, can rise to arbitrary position after-fixing self position, thereby make first elastic component still can play effectual cushioning effect.)

1. An unmanned aerial vehicle undercarriage can be mounted on an unmanned aerial vehicle body (a) for use, and is characterized by comprising a mounting base (1), a swinging rod (2), a first elastic part (3), a lifting part (4) and a driving part (5);

the mounting base (1) is mounted on the unmanned aerial vehicle body (a), and the driving piece (5) is arranged in the mounting base (1); the lifting piece (4) is arranged on the mounting base (1) in a lifting manner and is in driving connection with the driving piece (5);

the first end of the swing rod (2) is rotatably arranged on the mounting base (1), and the second end of the swing rod can be supported on the ground; one end of the first elastic piece (3) is connected to the lifting piece (4), and the other end of the first elastic piece is connected to the swinging rod (2);

the lifting piece (4) has a self-locking function, and the lifting piece can drive the first elastic piece (3) to move so as to enable the swing rod (2) to swing, so that the swing rod (2) can be folded and stored.

2. The unmanned aerial vehicle landing gear of claim 1, wherein the mounting base (1) is provided with a connecting hole (10), an internal thread is arranged in the connecting hole (10), an external thread is arranged on the lifting member (4), the lifting member (4) is connected to the connecting hole (10) in a threaded manner, and the first elastic member (3) is movably connected with the lifting member (4).

3. The landing gear of claim 1, further comprising a connecting member (6), wherein a through hole (40) is further formed in a central axis of the lifting member (4), the connecting member (6) is arranged in the through hole (40) in a penetrating manner and is rotatably connected with the lifting member (4), and the first elastic member (3) is movably connected with the connecting member (6).

4. An unmanned aerial vehicle landing gear according to claim 1, further comprising a first driving member (7), wherein a cavity is formed in the mounting base (1), and the driving member (5) is arranged in the cavity; the one end of lifting member (4) can stretch into in the cavity, be equipped with the external screw thread on lifting member (4), be equipped with the internal thread on first transmission piece (7), first transmission piece (7) and lifting member (4) stretch into the one end of cavity and carry out threaded connection, driving piece (5) and first transmission piece (7) carry out the drive and are connected and can order about first transmission piece (7) and rotate.

5. An unmanned aerial vehicle undercarriage according to claim 4 further comprising a second transmission member (8), wherein the swinging rod (2) is provided in plurality, the first elastic member (3), the lifting member (4) and the first transmission member (7) are provided in plurality corresponding to the swinging rod (2), the second transmission member (8) can be in driving connection with the first transmission members (7), and the driving member (5) is in driving connection with the second transmission member (8).

6. The landing gear of claim 1, further comprising a support member (9) and a second elastic member (0), wherein a sliding portion (90) is disposed at one end of the support member (9), a sliding groove (20) is disposed at a second end of the swing rod (2), the sliding portion (90) is slidably disposed in the sliding groove (20), the second elastic member (0) is sleeved on the sliding portion (90), one end of the second elastic member (0) abuts against the swing rod (2), and the other end of the second elastic member (0) abuts against the support member (9).

7. An unmanned landing gear according to claim 6, wherein the support (9) is further provided with a support portion (91) at an end thereof remote from the sliding portion (90), and the support portion (91) is rotatably connected to the sliding portion (90).

8. An unmanned landing gear according to claim 7, wherein the support portion (91) is arcuate.

9. An unmanned aerial vehicle landing gear according to claim 6, wherein the support (9) is provided with a non-slip layer (92) at its bottom.

10. An unmanned aerial vehicle comprising an unmanned aerial vehicle body (a), and further comprising an unmanned aerial vehicle landing gear of any of claims 1 to 9, the unmanned aerial vehicle landing gear being mounted for use on the unmanned aerial vehicle body (a).

Technical Field

The invention relates to the field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle undercarriage and an unmanned aerial vehicle.

Background

Unmanned aerial vehicle takes photo by plane has integrated high definition photography and camera device's remote control aircraft, and the system mainly includes: the aerial photography unmanned aerial vehicle comprises an aerial vehicle, a flight control device, a gyro holder, a video transmission device, a ground station, a communication system and the like, wherein the flight height of the aerial photography unmanned aerial vehicle is generally more than 500 meters, and the aerial photography unmanned aerial vehicle is suitable for shooting of movie and television clips and environment aerial views. The aircraft is flexible and convenient, and can quickly complete shooting of the lens. The airplane mainly operates by radio remote control. The landing gear structure of the unmanned aerial vehicle is one of the structures for ensuring normal take-off and landing of the equipment.

The structure of taking off and land that present the most unmanned aerial vehicle used is fixed undercarriage, can't provide effectual cushioning effect when unmanned aerial vehicle descends to the ground with very fast speed, makes unmanned aerial vehicle internals take place comparatively violent vibrations easily to cause the influence that inside precision part is impaired or causes its stability. Consequently, unmanned aerial vehicle undercarriage that has shock-absorbing function has appeared, but the unmanned aerial vehicle undercarriage that has shock-absorbing function that has now generally is not influenced in order to make shock-absorbing function, and it can't contract or fold, stops the airborne camera on the unmanned aerial vehicle easily, causes inconvenience for shooting work.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems, the unmanned aerial vehicle undercarriage and the unmanned aerial vehicle provided by the invention have the functions of folding, storing and damping.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an unmanned aerial vehicle undercarriage can be mounted on an unmanned aerial vehicle body for use, and comprises a mounting base, a swinging rod, a first elastic piece, a lifting piece and a driving piece; the mounting base is mounted on the unmanned aerial vehicle body, and the driving piece is arranged in the mounting base; the lifting piece is arranged on the mounting base in a lifting manner and is in driving connection with the driving piece; the first end of the swinging rod is rotatably arranged on the mounting base, and the second end of the swinging rod can be supported on the ground; one end of the first elastic piece is connected to the lifting piece, and the other end of the first elastic piece is connected to the swinging rod; the lifting piece has a self-locking function, and the lifting piece can drive the first elastic piece to move so as to enable the swing rod to swing, and therefore folding and storage of the swing rod are achieved.

Preferably, the mounting base is provided with a connecting hole, an internal thread is arranged in the connecting hole, the lifting piece is provided with an external thread, the lifting piece is connected to the connecting hole in a threaded mode, and the first elastic piece is movably connected with the lifting piece.

Preferably, this unmanned aerial vehicle undercarriage still includes the connecting piece, and the center pin department of lifting member still is equipped with the perforating hole, and the connecting piece wears to locate in the perforating hole and rotates with the lifting member to be connected, first elastic component and connecting piece swing joint.

Preferably, the unmanned aerial vehicle landing gear further comprises a first driving piece, a cavity is formed in the mounting base, and the driving piece is arranged in the cavity; the one end of lifting member can stretch into in the cavity, is equipped with the external screw thread on the lifting member, is equipped with the internal thread on the first transmission piece, and threaded connection is carried out with the one end that the lifting member stretched into the cavity to first transmission piece, and the driving piece carries out the drive connection with first transmission piece and can orders about first transmission piece and rotate.

Preferably, this unmanned aerial vehicle undercarriage still includes the second driving medium, and the swinging arms is equipped with a plurality ofly, and first elastic component, lifting member and first driving medium all correspond the swinging arms and are equipped with a plurality ofly, and the second driving medium can carry out the drive with a plurality of first driving mediums and be connected, and the driving piece carries out the drive with the second driving medium and is connected.

Preferably, this unmanned aerial vehicle undercarriage still includes support piece and second elastic component, and support piece's one end is equipped with the sliding part, and the swinging arms second end is equipped with the sliding tray, and sliding part slidable sets up in the sliding tray, and the second elastic component cover is located on the sliding part to the one end and the swinging arms butt of second elastic component, the second elastic component other end and support piece butt.

Preferably, one end of the support part far away from the sliding part is further provided with a support part, and the support part is rotatably connected with the sliding part.

Preferably, the support portion is arranged in an arc shape.

Preferably, the bottom of the support member is provided with an anti-slip layer.

An unmanned aerial vehicle, includes the unmanned aerial vehicle body and aforementioned unmanned aerial vehicle undercarriage, unmanned aerial vehicle undercarriage is installed and is used on the unmanned aerial vehicle body.

Advantageous effects

The invention has the beneficial effects that: an unmanned aerial vehicle undercarriage and an unmanned aerial vehicle, the unmanned aerial vehicle undercarriage comprises a mounting base, a swinging rod, a first elastic part, a lifting part and a driving part; the mounting base is mounted on the unmanned aerial vehicle body, and the driving piece is arranged in the mounting base; the lifting piece is arranged on the mounting base in a lifting manner and is in driving connection with the driving piece; the first end of the swinging rod is rotatably arranged on the mounting base, and the second end of the swinging rod can be supported on the ground; two ends of the first elastic piece are respectively connected to the lifting piece and the swinging rod; the lifting piece has self-locking function, and the elevating movement of lifting piece can drive first elastic component and reciprocate to make the swinging arms swing, can realize the folding and accomodating of swinging arms, simultaneously because the lifting piece has self-locking function, can rise to arbitrary position after-fixing self position, thereby make first elastic component still can play effectual cushioning effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of an embodiment of the present invention;

FIG. 3 is a schematic view of the connection relationship of the lifting members;

FIG. 4 is a schematic illustration of an explosive assembly between the lifting member, the connecting member and the first transmission member;

FIG. 5 is a schematic view of the structure within the cavity;

FIG. 6 is another schematic view of the structure within the cavity;

FIG. 7 is a schematic view of a connection hole;

FIG. 8 is a schematic diagram of a portion of an embodiment of the present invention;

FIG. 9 is a schematic illustration of an explosive assembly between the sway bar and the support;

FIG. 10 is a schematic view of the swing lever swinging upward for retraction;

FIG. 11 is a schematic view of the support rod in a normal state;

fig. 12 is a schematic view of the state of the support member when the main body of the drone is pressed down;

FIG. 13 is a schematic view illustrating an arc-shaped supporting portion according to another embodiment of the present invention;

in the figure, an unmanned aerial vehicle body a, an airborne camera b, a mounting base 1, a swinging rod 2, a first elastic part 3, a lifting part 4, a driving part 5, a connecting part 6, a first transmission part 7, a second transmission part 8, a supporting part 9, a second elastic part 0, a connecting hole 10, a sliding groove 20, a through hole 40, a sliding part 90, a supporting part 91 and an anti-slip layer 92 are arranged.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 13, an unmanned aerial vehicle undercarriage, which can be mounted on an unmanned aerial vehicle body a for use, includes a mounting base 1, a swing rod 2, a first elastic member 3, a lifting member 4 and a driving member 5; the mounting base 1 is mounted on the unmanned aerial vehicle body a, and the driving piece 5 is arranged in the mounting base 1; the lifting piece 4 is arranged on the mounting base 1 in a lifting manner and is in driving connection with the driving piece 5; the first end of the swing rod 2 is rotatably arranged on the mounting base 1, and the second end of the swing rod can be supported on the ground; one end of the first elastic element 3 is connected to the lifting element 4, and the other end is connected to the swinging rod 2; the lifting piece 4 has a self-locking function, and the lifting piece can drive the first elastic piece 3 to move so as to enable the swing rod 2 to swing, so that the swing rod 2 can be folded and stored.

Specifically, the first elastic member 3 is a spring, and since the spring for damping generally has a large strength and the supporting object for supporting on the ground has a light weight, when only the gravity of the supporting object is applied to the damping spring, the degree of elastic deformation of the damping spring is very small, so that the length change of the damping spring is very small, and the damping spring can be used as a link rod approximately. Consequently, the lift 4 when carrying out elevating movement, can drive the one end that first elastic component 3 and lift 4 are connected and reciprocate, and the other end of first elastic component 3 is dragged swinging arms 2 and is made swinging arms 2 swing to the realization is to the folding of swinging arms 2 and accomodate, prevents that the existence of swinging arms 2 from blockking airborne camera b's field of vision scope, has made things convenient for the shooting work of airborne camera b on the unmanned aerial vehicle. Because the lifting part 4 still has self-locking function, the lifting part 4 can be fixed self height after lifting to appointed position, can fix the position of first elastic component 3 one end, when exerting pressure to the other end of first elastic component 3, can make first elastic component 3 carry out compressive deformation to make first elastic component 3 still can play effectual cushioning effect. Consequently this unmanned aerial vehicle undercarriage possesses simultaneously and has shock-absorbing function and folding function of accomodating.

Furthermore, in one embodiment of the present invention, the mounting base 1 is provided with a connecting hole 10, an internal thread is provided in the connecting hole 10, the lifting member 4 is provided with an external thread, and the lifting member 4 is connected to the connecting hole 10 in a threaded manner, so that the lifting member 4 is self-locked by the threaded connection with the mounting base 1, and the lifting member 4 can be lifted by rotating the lifting member 4. And in order to prevent 4 self rotations of lifter, cause the interference to first elastic component 3, this unmanned aerial vehicle undercarriage still includes connecting piece 6, and the center pin department of lifter 4 still is equipped with perforating hole 40, and connecting piece 6 wears to locate in perforating hole 40 and rotates with lifter 4 to be connected, and first elastic component 3 is articulated with connecting piece 6.

Further, in another embodiment of the invention, the landing gear of the unmanned aerial vehicle further comprises a first transmission piece 7 and a second transmission piece 8, a cavity is arranged in the mounting base 1, and the driving piece 5 is arranged in the cavity; in the cavity can be stretched into to the one end of lifter 4, be equipped with the external screw thread on the lifter 4, be equipped with the internal thread on the first transmission piece 7, first transmission piece 7 carries out threaded connection with the one end that the lifter 4 stretched into the cavity, driving piece 5 carries out the drive with first transmission piece 7 and is connected and can order about first transmission piece 7 and rotate, wherein, lifter 4 carries out the auto-lock through the threaded connection with first transmission piece 7, and rotate first transmission piece 7 and can order about lifter 4 and go up and down.

The swing rod 2 is provided with a plurality of first elastic pieces 3, the lifting piece 4 and the first transmission piece 7 which correspond to the swing rod 2, the second transmission piece 8 can be in driving connection with the first transmission pieces 7, and the driving piece 5 is in driving connection with the second transmission piece 8. Preferably, in this embodiment, the swing rods 2 are four and hinged to four corners of the bottom of the mounting base 1, the corresponding first transmission members 7, the corresponding lifting members 4 and the corresponding first elastic members 3 are four, the number of the second transmission members 8 is two, each second transmission member 8 drives two first transmission members 7, and each second transmission member 8 is driven by one driving member 5, so that the number of power sources can be saved, and the control difficulty can be reduced. Wherein, the two ends of the second transmission piece 8 are provided with helical gears, the outer side of the first transmission piece 7 is provided with a helical gear structure, and the second transmission piece 8 can be meshed with the first transmission piece 7; the middle part of the second transmission part 8 is also provided with a spur gear, the driving part 5 is a motor, and the spur gear arranged in the middle part of the second transmission part 8 can be meshed with output teeth of the motor.

Further, unmanned aerial vehicle body a is when descending and landing, the swing action that pushes down can appear in rocking beam 2 that plays the supporting role, and this swing action has for longitudinal displacement and lateral displacement, wherein the longitudinal displacement of rocking beam 2 can offset each other with the elastic deformation stroke of first elastic component 3, but lateral displacement still can appear in the one end that its pin joint was kept away from to rocking beam 2, the existence of this lateral displacement can be very big makes the wearing and tearing of rocking beam 2, or cause rocking beam 2 and landing surface rigid contact and cause unmanned aerial vehicle body a to be bounced, the shock attenuation effect has been reduced.

Therefore, in order to counteract the transverse displacement of the oscillating rod 2, the landing gear of the unmanned aerial vehicle further comprises a support member 9 and a second elastic member 0, wherein one end of the support member 9 is provided with a sliding part 90, the second end of the oscillating rod 2 is provided with a sliding groove 20, the sliding part 90 is slidably arranged in the sliding groove 20, the second elastic member 0 is sleeved on the sliding part 90, one end of the second elastic member 0 is abutted against the oscillating rod 2, the other end of the second elastic member 0 is abutted against the support member 9 and is supported on the ground by the support member 9, so that the transverse displacement motion of the oscillating rod 2 during damping is converted into the sliding motion of the sliding part 90 in the sliding groove 20 and is counteracted with the elastic deformation stroke of the second elastic member 0, meanwhile, the elastic force of the second elastic member 0 can reset the oscillating rod 2, and the support member 9 can tightly adhere to the ground under the counter-acting force of the second elastic member 0, so, the laminating landing surface that support piece 9 contact ground one end can be stable, and very big reduction the relative slip and the friction of supporting part position between the landing surface, reduce the wear rate of this unmanned aerial vehicle undercarriage. In another embodiment of the present invention, the bottom of the swing lever 2 may be provided with a pulley, so that the sliding motion of the pulley can reduce the wear and the bounce of the swing lever 2, and the swing lever can be directly restored by the elastic force of the first elastic member 3.

Furthermore, a supporting portion 91 is further disposed at an end of the supporting member 9 away from the sliding portion 90, the supporting portion 91 is hinged to the sliding portion 90, wherein the supporting part 91 is rod-shaped, which increases the contact area between the supporting part 91 and the landing surface, improves the landing stability of the landing gear of the unmanned aerial vehicle, when the unmanned aerial vehicle body a lands, the swinging rod 2 swings, so the sliding part 90 connected to the swinging rod 2 swings along with the swinging, if the sliding part 90 is fixedly connected with the supporting part 91, rolling friction between the support part 91 and the landing surface occurs when the sliding part 90 swings, which also causes great wear of the support part 91, therefore, in this embodiment, the supporting portion 91 is hinged to the sliding portion 90, so that the swinging movement of the sliding portion 90 does not cause the rolling of the supporting portion 91, thereby effectively reducing the wear degree of the supporting member 9.

Referring to fig. 13, in one embodiment of the present invention, the supporting portion 91 is disposed in an arc shape, so that the stresses in all directions of the unmanned aerial vehicle landing gear during landing are more balanced, and the possibility of a dumping accident caused by an improper landing direction is reduced.

Further, the bottom of the supporting member 9 is provided with an anti-slip layer 92, and the anti-slip layer 92 is also provided to reduce the friction between the supporting member 91 and the landing surface.

The utility model provides an unmanned aerial vehicle, includes unmanned aerial vehicle body an and aforementioned unmanned aerial vehicle undercarriage, the unmanned aerial vehicle undercarriage is installed and is used on unmanned aerial vehicle body a.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.