CN213677140U - Multi-rotor unmanned aerial vehicle - Google Patents
Multi-rotor unmanned aerial vehicle Download PDFInfo
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- CN213677140U CN213677140U CN202022145813.3U CN202022145813U CN213677140U CN 213677140 U CN213677140 U CN 213677140U CN 202022145813 U CN202022145813 U CN 202022145813U CN 213677140 U CN213677140 U CN 213677140U
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- foot rest
- horn
- aerial vehicle
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- rotor unmanned
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- 239000000872 buffer Substances 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 description 5
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- 230000005540 biological transmission Effects 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U50/00—Propulsion; Power supply
- B64U50/10—Propulsion
- B64U50/19—Propulsion using electrically powered motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/04—Arrangement or disposition on aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/58—Arrangements or adaptations of shock-absorbers or springs
- B64C25/62—Spring shock-absorbers; Springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U60/00—Undercarriages
- B64U60/50—Undercarriages with landing legs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
- B64U10/13—Flying platforms
- B64U10/14—Flying platforms with four distinct rotor axes, e.g. quadcopters
Abstract
The utility model discloses a multi-rotor unmanned aerial vehicle, which comprises a machine body and a plurality of horn assemblies, wherein each horn assembly comprises a horn, one end of the horn is connected with the machine body, and the other end of the horn is used for supporting a power assembly of the multi-rotor unmanned aerial vehicle; at least one of the horn assemblies further comprises a foot rest, and the foot rest is flexibly connected with the horn.
Description
Technical Field
The utility model relates to an unmanned air vehicle technique field especially relates to a many rotor unmanned vehicles.
Background
Under the high-speed flight state of many rotor unmanned vehicles, when the rotational speed of paddle exceeded the given value, the shimmy motion of paddle and the torsional motion intercoupling of horn lead to the vibration to disperse fast, then lead to the cloud platform picture on many rotor unmanned vehicles acutely to shake or many rotor unmanned vehicles's control effect variation slightly, then lead to many rotor unmanned vehicles direct out of control to explode the machine seriously.
SUMMERY OF THE UTILITY MODEL
The utility model provides a many rotors unmanned vehicles through the flexonics of foot rest and horn, not only can not influence the support function of foot rest, is showing the unstability rotational speed that has promoted the paddle moreover, has better effect to the design of subtracting of horn.
The utility model provides a many rotors unmanned vehicles, include:
a body;
the plurality of horn assemblies each comprise a horn, one end of the horn is connected with the body, and the other end of the horn is used for supporting a power assembly of the multi-rotor unmanned aerial vehicle;
at least one of the horn assemblies further comprises a foot rest, and the foot rest is flexibly connected with the horn.
The utility model discloses among the embodiment's the unmanned vehicles of many rotors, the other end of horn is equipped with the installation department, power component includes:
the motor is arranged on the top of the mounting part;
a paddle mechanically coupled to and rotating with the rotor of the motor;
wherein, the foot rest sets up the bottom of installation department.
The utility model discloses in the many rotors unmanned vehicles of embodiment, the horn subassembly still includes:
the bolster, the bolster sets up the foot rest with between the installation department, in order to realize the foot rest with horn flexonics.
The utility model discloses in the many rotors unmanned vehicles of embodiment, the bolster is including the connecting piece that adopts rubber materials to make, the one end of connecting piece with the installation department is connected, the other end of connecting piece with the foot rest is connected.
In the multi-rotor unmanned aerial vehicle according to the embodiment of the present invention, the buffer member is integrally injection-molded with the foot frame and/or the mounting portion; or the buffer piece is connected with the mounting part and the foot rest in a bonding mode.
The utility model discloses in the many rotors unmanned vehicles of embodiment, the bolster includes the spring part, the both ends of spring part respectively with the installation department with the foot rest is connected.
The utility model discloses among the embodiment's the many rotor unmanned vehicles, be equipped with first groove structure on the installation department, be equipped with second groove structure on the foot rest, install respectively at the both ends of spring part on first groove structure and the second groove structure.
The utility model discloses in the many rotors unmanned vehicles of embodiment, the horn subassembly still includes:
the limiting part is arranged on the foot rest and/or the mounting part of the machine arm and used for limiting the swing amplitude of the foot rest.
The utility model discloses among the many rotor unmanned vehicles of embodiment, the locating part includes threaded fastener, be equipped with the screw on the installation department, be equipped with the through-hole on the foot rest, threaded fastener passes be connected to behind the through-hole the screw.
The utility model discloses among the many rotors unmanned vehicles of embodiment, threaded fastener wears to establish and constitutes the foot rest with in horn flexonics's the bolster.
The utility model discloses among the many rotor unmanned vehicles of embodiment, the outside of bolster is equipped with the draw-in groove for the joint is in on the flange of foot rest.
The utility model discloses in the many rotors unmanned vehicles of embodiment, bolster and threaded fastener are a plurality ofly, and are a plurality of the bolster is respectively through a plurality of threaded fastener corresponds to be connected the foot rest with between the installation department.
The utility model discloses among the many rotor unmanned vehicles of embodiment, be equipped with groove structure on the installation department, groove structure's shape with the foot rest orientation the structure looks adaptation of installation department.
In the multi-rotor unmanned aerial vehicle according to the embodiment of the present invention, the position-limiting member is a protrusion structure provided on the mounting portion, and is adapted to be engaged with a groove provided on the foot rest; or
The limiting part is arranged on a protruding structure on the foot rest and is used for being matched with the groove in the installation part.
The utility model discloses among the many rotor unmanned vehicles of embodiment, many rotor unmanned vehicles still including be used for with ground end communication connection's communication antenna subassembly, communication antenna subassembly installs in the accepting groove that the foot rest formed.
The technical scheme provided by the embodiment of the application can have the following beneficial effects: this application has designed a many rotors unmanned vehicles, because the foot rest is connected with the flexonics of horn, consequently, both can not influence the support function of foot rest, also show the unstability rotational speed that has promoted the paddle, have better effect to the design of subtracting of horn.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a multi-rotor unmanned aerial vehicle according to an embodiment of the present application;
FIG. 2 is a schematic view of the multi-rotor UAV of FIG. 1 at another angle;
FIG. 3 is a schematic structural view of the horn assembly of FIG. 1;
FIG. 4 is a cross-sectional schematic view of the horn assembly of FIG. 1;
FIG. 5 is an enlarged schematic view of FIG. 4 at A;
FIG. 6 is an exploded schematic view of the horn assembly of FIG. 1;
FIG. 7 is an exploded schematic view of the horn assembly of FIG. 1 at another angle;
FIG. 8 is a schematic view of the foot rest of FIG. 1;
fig. 9 is a schematic view of the structure of the connector in fig. 6.
Description of reference numerals:
100. a horn assembly; 200. a body; 300. a power assembly; 301. a motor; 302. a paddle;
10. a foot rest; 11. a support portion; 12. a limiting part; 121. a through hole; 13. an accommodating groove;
20. a horn; 21. an installation part; 211. a groove structure; 212. a fixed part;
30. a limiting member;
40. a connecting member; 41. perforating holes; 42. a card slot;
50. an antenna assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The utility model provides a many rotor unmanned vehicles belongs to unmanned air vehicle technical field, and along with unmanned aerial vehicle technique's development and popularization, many rotor unmanned vehicles has been widely applied to fields such as aerial photography, agriculture, forestry, survey and drawing, and many rotor unmanned vehicles rotate and the thrust that produces through the motor drive paddle realizes flying. However, when the rotating speed of the blades exceeds a given value in a high-speed flying state of the multi-rotor unmanned aerial vehicle, the shimmy motion of the blades and the torsion motion of the horn are coupled with each other, so that the vibration is rapidly diffused, the picture of the cradle head is severely shaken, the control effect of the aircraft is poor if the vibration is light, and the aircraft is directly out of control and explodes.
As shown in fig. 1 to 9, the present application provides a multi-rotor unmanned aerial vehicle, which includes a power assembly 300, a body 200, and a plurality of horn assemblies 100, each horn assembly 100 including a horn 20, one end of the horn 20 being connected to the body 200, and the other end of the horn 20 being used to support the power assembly 300 of the multi-rotor unmanned aerial vehicle. Wherein, at least one horn subassembly 100 still includes foot rest 10, foot rest 10 and horn 20 flexonics, can slow down the transmission impact force of many rotor unmanned vehicles when landing for many rotor unmanned vehicles can unmanned aerial vehicle steadily descend.
It should be noted that when the blades 302 of the power assembly 300 rotate at a high speed, the blades 302 will couple with the machine body 200, the horn 20 and the foot rest 10, and when the rotating speed reaches a critical rotating speed, the vibration will be rapidly dispersed and out of control, which may cause serious consequences.
For example, taking a two-blade folding paddle as an example, assuming that the torsional modal frequencies of the horn 20 around the X axis and the Y axis are consistent, the approximate calculation formula of the instability critical rotation speed of the blade 302 is:
wherein k is1Related to the geometry of blades 302, the density of blades 302, the moment of inertia J of power assembly 300 about the axis of torsion on horn 20;
is the torsional modal frequency of the horn 20.
From the above equation, it can be seen that the torsional modal frequency of horn 20 directly determines the destabilized rotational speed of the blade. Therefore, to ensure that the instability problem does not occur at the designed maximum rotational speed of blade 302, one must try to increase the torsional modal frequency of horn 20.
Assuming that the horn 20 of the multi-rotor unmanned aerial vehicle is a thin-walled circular tube structure, the calculation formula of the torsional modal frequency of the horn 20 is as follows:
wherein, D is the pipe external diameter of horn 20, and alpha is the ratio of the internal diameter of horn 20 and external diameter, and G is the material shear modulus of horn 20, and L is the length of horn 20, and the approximate expression of J is:
J＝Jm+Jarm+Jfoot≈Jm+Jfoot (3)
wherein, Jm、JarmAnd JfootRespectively, representing the moments of inertia of the power assembly 300, the horn 20 and the foot rest 10 about the axis of torsion of the horn, JarmRelative JmAnd JfootAre negligible. In addition, due toThe foot stand 10 generally requires a built-in antenna to ensure the image transmission performance of the multi-rotor unmanned aerial vehicle, and thus the structural design space of the foot stand 10 is not large, i.e., JmAnd can be regarded as a fixed value after the graph transmission scheme is determined.
It is easy to derive from formula (1), formula (2) and formula (3):
as can be seen from equation (4), in order to increase the critical rotation speed, the outer diameter D of the boom 20 or the wall thickness, i.e., the ratio α between the inner diameter and the outer diameter of the boom, is increased, as determined by the material of the boom 20, the model of the horse 10, the profile of the blade, and the motor of the power assembly 300.
However, increasing the outer diameter of the horn 20 or decreasing the ratio α of the inner diameter to the outer diameter of the horn 20 brings a weight increase of the multi-rotor unmanned aerial vehicle, thereby affecting the flight performance of the multi-rotor unmanned aerial vehicle. The present application utilizes the flexible connection between the foot stand 10 and the arm 20 to eliminate JfootThe problem of instability and vibration caused by the coupling of the horn 20 and the blade 302 of the multi-rotor unmanned aerial vehicle during high-speed flight can be solved due to the influence on the torsional mode of the horn, the outer diameter D or the wall thickness of the horn 20 does not need to be increased, the rotating speed of the blade 302 does not need to be controlled below the critical rotating speed, and the mobility loss caused by limiting the rotating speed of the blade is avoided.
In an alternative embodiment, as shown in fig. 1 and 2, the power assembly 300 includes a motor 301 and a blade 302, the other end of the horn 20 is provided with a mounting portion 21, the motor 301 is mounted on the top of the mounting portion 21, the blade 302 is mechanically coupled with the rotor of the motor 301, and the foot stand 10 is disposed on the bottom of the mounting portion 21 as the rotor of the motor 301 rotates. For example, when the motor 301 is an inner rotor motor, the motor 301 is provided with an output shaft 3011, the paddle 302 is mounted on the output shaft 3011, and the housing of the motor 301 is fixed on the mounting portion 21, so that the paddle 302 can rotate under the driving of the output shaft 3011; alternatively, when the motor 301 is an external rotor motor, the blades 302 are mounted on the housing of the motor rotor.
Illustratively, as shown in fig. 3 to 7, the shape of the mounting portion 21 is substantially the same as the shape of the motor 301, the upper end of the mounting portion is provided with a fixing portion 212, the lower end of the mounting portion is provided with a groove structure 211, the motor 301 is fixed on the fixing portion 212, the shape of the groove structure 211 is matched with the structure of the foot rest 10 facing the mounting portion 21, and the foot rest 10 is flexibly connected in the groove structure 211.
In an alternative embodiment, the horn assembly 100 further includes a buffer member disposed between the foot rest 10 and the mounting portion 21 to enable the foot rest 10 to be flexibly connected to the horn 20.
The buffer member may be separately designed from the foot rest 10 and then installed between the foot rest 10 and the installation part 21, or may be integrally formed with the foot rest 10, and after the foot rest 10 is connected to the installation part 21, one end surface of the buffer member contacts the foot rest 10, and the other end surface of the foot rest 10 contacts the end surface of the groove structure 211. Since the buffer member is mostly made of elastic rubber material, it can be deformed by pre-compression along the axial direction of the mounting portion 21 to reduce the torsional rigidity of the foot rest 10 relative to the arm, thereby eliminating JfootInfluence on the torsional mode of the horn.
In an alternative embodiment, the buffer member includes a connection member 40 made of a rubber material, wherein one end of the connection member 40 is connected to the mounting portion 21 and the other end of the connection member 40 is connected to the foot rest 10.
Illustratively, the connecting member 40 is a cylindrical structure, and both ends thereof are provided with bonding portions or locking portions, the foot rest 10 is provided with a foot rest connecting portion, and the bottom of the groove structure 211 is connected with a foot rest fixing portion. The bonding portion or the locking portion at one end of the connecting member 40 is connected to the foot stand connecting portion, and the bonding portion or the locking portion at the other end of the connecting member 40 is connected to the foot stand fixing portion, so that the foot stand 10 can be connected to the mounting portion 21 through the bonding portion or the locking portion of the connecting member 40.
In an alternative embodiment, the cushioning member is injection moulded integrally with the foot rest 10 and/or the mounting portion 21; or the cushion member is connected to the mounting portion 21 and the foot rest 10 by bonding, so that the foot rest 10 can be flexibly connected to the mounting portion 21 via the cushion member.
In an alternative embodiment, the damping member comprises a spring element, the two ends of which are connected to the mounting portion 21 and the foot rest 10, respectively.
Illustratively, as shown in fig. 5 to 8, the foot rest 10 is L-shaped, and includes a limiting portion 12 and a supporting portion 11 connected to the limiting portion 12. The limiting part 12 is disc-shaped, the structure and the size of the limiting part are matched with those of the groove structure 211, the limiting part 12 can be just installed in the groove structure 211, the supporting part 11 is used for supporting the whole structure of the multi-rotor unmanned aerial vehicle, and the spring part is arranged between the limiting part 12 and the groove structure 211, so that the buffering performance of the foot rest 10 can be improved, and the multi-rotor unmanned aerial vehicle can stably land; but also can reduce the torsional rigidity of the foot rest 10 relative to the machine arm and eliminate JfootInfluence on the torsional mode of the horn.
In an alternative embodiment, a first groove structure is provided on the mounting portion 21, a second groove structure is provided on the foot rest 10, and two ends of the spring element are respectively mounted on the first groove structure and the second groove structure, so that the foot rest 10 can be connected with the mounting portion 21.
Exemplarily, first groove structure sets up in the bottom of groove structure 211, can be provided with the helicitic texture in first groove structure and the second groove structure for the one end of spring part can be fixed at first groove structure through bonding or threaded connection, and the other end of spring part is fixed at second groove structure through bonding or other connection, and simple structure facilitates the assembly.
In an alternative embodiment, the horn assembly 100 further includes a limiting member 30, and the limiting member 30 is disposed on the foot rest 10 and/or the mounting portion 21 of the horn 20 for limiting the swing range of the foot rest 10.
For example, the limiting member 30 may be a limiting post disposed on the mounting portion 21, and the foot rest 10 is provided with a limiting hole engaged with the limiting post, so that after the foot rest 10 is mounted on the mounting portion 21, the foot rest 10 can only move in a gap between the limiting hole and the limiting post; or the mounting part 21 is provided with a fixing hole, the foot rest 10 is provided with a limiting hole, and the limiting part 30 penetrates through the limiting hole and then is connected to the fixing hole.
In an alternative embodiment, the limiting member 30 includes a threaded fastener, the mounting portion 21 is provided with a threaded hole, the foot rest 10 is provided with a through hole 121, and the threaded fastener passes through the through hole 121 and then is connected to the threaded hole, so as to complete the connection between the foot rest 10 and the mounting portion 21.
For example, as shown in fig. 6 to 9, the threaded fastener is inserted into a buffer member that forms a flexible connection between the foot rest 10 and the horn 20, wherein the buffer member is provided with a through hole 41, the size of the through hole 41 is adapted to the outer diameter of the threaded fastener, after the buffer member is sleeved on the foot rest 10, the threaded fastener passes through the through hole 41 and is connected with the horn 20, or the threaded fastener passes through the foot rest 10 and the through hole 41 in sequence and is connected with the horn 20, so that the buffer member can be disposed between the foot rest 10 and the horn 20.
In an alternative embodiment, the outside of the buffer is provided with a snap groove 42 for snap-fitting on a flange of the foot rest 10.
Exemplarily, the number of the buffering members, the through holes 121 and the threaded fasteners is three, the three buffering members are correspondingly clamped on the flange of each through hole 121 through the clamping grooves 42, and the three threaded fasteners are correspondingly arranged in the through holes 41 of each buffering member in a penetrating manner, so that the buffering members can be connected to the foot rest 10 and form a balance state between the mounting portions 21.
In an alternative embodiment, the limiting member 30 is a protrusion structure disposed on the mounting portion 21 for matching with a groove on the foot rest 10; or the limiting piece 30 is a protruding structure arranged on the foot rest 10 and is used for being matched with the groove in the installation part 21, so that the swing amplitude of the foot rest 10 is limited within a smaller range, the foot rest 10 is guaranteed to serve as a multi-rotor unmanned aerial vehicle to support the whole structure function of the multi-rotor unmanned aerial vehicle before flying or after landing, and meanwhile, the risk that the torsional modal frequency of the horn is greatly reduced due to the fact that the size and/or inertia of the foot rest 10 are too large is avoided.
In an alternative embodiment, the multi-rotor unmanned aerial vehicle further comprises a communication antenna assembly 50 for communicating with the ground end, the communication antenna assembly 50 being mounted within the receiving cavity 13 formed by the foot rest 10. Wherein, accepting groove 13 is formed by spacing portion 12 and the fretwork hole of supporting part 11, not only can hold communication antenna subassembly 50 like this, but also can make supporting part 11 can produce the deformation of buckling to resume rapidly, be favorable to slowing down the impact force when many rotor unmanned vehicles descend.
After the technical scheme is adopted, the foot rest 10 is flexibly connected with the horn 20, so that the torsional rigidity of the foot rest 10 relative to the horn can be reduced, the local modal frequency of the foot rest 10 is lower than the lowest rotating speed of the blade 302, and the resonance problem caused by the foot rest 10 is avoided.
Wherein the critical rotation speed omegacritiacalLess than the maximum rotational speed of blades 302, it can be adjusted by increasing the size of horn 20; when omega is higher thancritiacalGreater than the maximum speed of the blade 302, can ensure omegacritiacalThe weight reduction design of the multi-rotor unmanned aerial vehicle is performed by reducing the size of the horn 20 on the premise of being larger than the maximum rotation speed of the blades 302.
For example, assume inertia J of motor 301mIs 2x10-6kg m2, and inertia J of the motor 301footIs 3x10-6kg m2, under the constraint of the torsional modal frequency of the horn, the scheme that the foot rest 10 is rigidly connected with the mounting part 21 and the scheme that the flexible connection is adopted in the application can obtain the weight ratio of the horn 20 in the two schemes that m1/m2 is 1.58 through calculation, namely the weight of the horn 20 can be reduced by 36.7%.
In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (15)
1. A multi-rotor unmanned aerial vehicle, comprising:
a body;
the plurality of horn assemblies each comprise a horn, one end of the horn is connected with the body, and the other end of the horn is used for supporting a power assembly of the multi-rotor unmanned aerial vehicle;
at least one of the horn assemblies further comprises a foot rest, and the foot rest is flexibly connected with the horn.
2. The multi-rotor unmanned aerial vehicle of claim 1, wherein the other end of the horn is provided with a mounting portion, the power assembly comprising:
the motor is arranged on the top of the mounting part;
a paddle mechanically coupled to and rotating with the rotor of the motor;
wherein, the foot rest sets up the bottom of installation department.
3. The multi-rotor unmanned aerial vehicle of claim 2, wherein the horn assembly further comprises:
the bolster, the bolster sets up the foot rest with between the installation department, in order to realize the foot rest with horn flexonics.
4. The multi-rotor unmanned aerial vehicle of claim 3, wherein the buffer member comprises a connecting member made of a rubber material, one end of the connecting member is connected to the mounting portion, and the other end of the connecting member is connected to the foot rest.
5. The multi-rotor unmanned aerial vehicle of claim 4, wherein the bumper is injection molded integrally with the foot rest and/or mounting portion; or the buffer piece is connected with the mounting part and the foot rest in a bonding mode.
6. The multi-rotor unmanned aerial vehicle of claim 3, wherein the buffer member comprises a spring member, and wherein two ends of the spring member are connected to the mounting portion and the foot rest, respectively.
7. The multi-rotor unmanned aerial vehicle of claim 6, wherein the mounting portion comprises a first groove structure, the foot rest comprises a second groove structure, and the two ends of the spring element are respectively mounted on the first groove structure and the second groove structure.
8. The multi-rotor unmanned aerial vehicle of any one of claims 1-7, wherein the horn assembly further comprises:
the limiting part is arranged on the foot rest and/or the mounting part of the machine arm and used for limiting the swing amplitude of the foot rest.
9. The multi-rotor unmanned aerial vehicle of claim 8, wherein the stop member comprises a threaded fastener, the mounting portion comprises a screw hole, the foot rest comprises a through hole, and the threaded fastener passes through the through hole and is connected to the screw hole.
10. The multi-rotor unmanned aerial vehicle of claim 9, wherein the threaded fastener is disposed through a bumper that forms a flexible connection between the foot rest and the horn.
11. The multi-rotor unmanned aerial vehicle of claim 10, wherein a snap groove is formed in an outer side of the buffer member and used for being snapped on the flange of the foot rest.
12. The multi-rotor unmanned aerial vehicle of claim 11, wherein the number of the buffers and the number of the threaded fasteners are both multiple, and the multiple buffers are correspondingly connected between the foot rest and the mounting portion through the multiple threaded fasteners, respectively.
13. The multi-rotor unmanned aerial vehicle of claim 10, wherein the mounting portion is provided with a groove structure, and the groove structure is shaped to match a structure of the foot rest facing the mounting portion.
14. The multi-rotor unmanned aerial vehicle of claim 8, wherein the stop is a raised structure disposed on the mounting portion for mating with a groove on the foot rest; or
The limiting part is arranged on a protruding structure on the foot rest and is used for being matched with the groove in the installation part.
15. The multi-rotor unmanned aerial vehicle of claim 1, further comprising a communication antenna assembly for communicating with a ground end, the communication antenna assembly mounted within the receiving slot formed by the foot rest.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022145813.3U CN213677140U (en) | 2020-09-24 | 2020-09-24 | Multi-rotor unmanned aerial vehicle |
| PCT/CN2020/135451 WO2022062203A1 (en) | 2020-09-24 | 2020-12-10 | Multi-rotor unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022145813.3U CN213677140U (en) | 2020-09-24 | 2020-09-24 | Multi-rotor unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213677140U true CN213677140U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022145813.3U Expired - Fee Related CN213677140U (en) | 2020-09-24 | 2020-09-24 | Multi-rotor unmanned aerial vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213677140U (en) |
| WO (1) | WO2022062203A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018042610A1 (en) * | 2016-09-02 | 2018-03-08 | 株式会社プロドローン | Unmanned aircraft |
| CN107512389A (en) * | 2017-09-29 | 2017-12-26 | 成都鑫晨航空科技有限公司 | A kind of aerial photography device of band specialty foot stool |
| CN208198804U (en) * | 2018-05-14 | 2018-12-07 | 西安工业大学 | A kind of unmanned plane with landing pooling feature |
| CN108791826A (en) * | 2018-05-28 | 2018-11-13 | 芜湖千创智能科技有限公司 | A kind of plant protection drone that can adjust support height |
| CN209410317U (en) * | 2018-11-21 | 2019-09-20 | 南京邮电大学 | A kind of quadrotor drone rack |
| CN211253004U (en) * | 2020-01-02 | 2020-08-14 | 杜菊芬 | Unmanned aerial vehicle for geographic information survey |
-
2020
- 2020-09-24 CN CN202022145813.3U patent/CN213677140U/en not_active Expired - Fee Related
- 2020-12-10 WO PCT/CN2020/135451 patent/WO2022062203A1/en active Application Filing
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|---|---|
| WO2022062203A1 (en) | 2022-03-31 |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210713 |