CN106828889A - Unmanned plane protection device and its method of work - Google Patents
Unmanned plane protection device and its method of work Download PDFInfo
- Publication number
- CN106828889A CN106828889A CN201710038720.0A CN201710038720A CN106828889A CN 106828889 A CN106828889 A CN 106828889A CN 201710038720 A CN201710038720 A CN 201710038720A CN 106828889 A CN106828889 A CN 106828889A
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- Prior art keywords
- gear
- support arm
- unmanned plane
- hinge bar
- protection device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/006—Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Forklifts And Lifting Vehicles (AREA)
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Abstract
The present invention relates to a kind of unmanned plane protection device and its method of work, wherein unmanned plane protection device includes fuselage and four rod members being connected on fuselage, it is provided with above the outer end of the rod member and the rotor for rotating is driven by rotor electric machine, the outer end of the rod member is arranged below the support arm that protective cover and end are hinged in protective cover, it is provided with the protective enclosure by motor-driven first gear and the second gear for rotating is driven by first gear, the body surfaces of the second gear are hinged with a V-arrangement hinge bar, the other end of the V-arrangement hinge bar is hinged on support arm by middle hinge bar.Unmanned plane protection device of the present invention can be moved between landing gear position and the protected position of rotor, it is ensured that the safety of rotor in flight and descent.
Description
Technical field：
The invention belongs to small-sized rotary wind type flying robot field, it is related to a kind of unmanned plane protection device of new structure and its work
Make method.
Background technology：
Monitoring device, such as video camera are commonly installed in unmanned plane, although it is initially applied to military security and supervision aspect, nowadays
Also agriculture investigation, resource exploration, lost objects search, rescue action etc. are more and more applied to.At present, unmanned plane rises and falls
Frame can stabilize it landing, but undercarriage usually limit the space of camera, and may be blocked the visual field that camera shoots
Or it is smudgy.In addition, unmanned plane price general charged is expensive, and carries important information, can pass through unavoidably in unmanned plane work
Some buildings, therefore Adjacent Buildings turn into one important potential risk of unmanned plane, one of rotor such as after shock
Damage may cause the failure of whole UAV Propulsion System, so it is desired that make rotor it is impaired may drop
To minimum, the safety of Adjacent Buildings and personnel can be both protected, economic loss can be reduced again, it is ensured that information security.It is preferable
Unmanned plane should very light in weight because the weight of the weight load of unmanned plane, load is probably camera or other equipment,
But if protecting rotor using foamite system, although weight is lighter but not firm enough.
The content of the invention：
It is to provide a kind of unmanned plane protection device and its method of work, the unmanned plane protection device structure that the purpose of the present invention is
Simply, it is firm light and handy, can solve the problems, such as that camera fields of view is obscured, and UAV Landing safety can be made.
It is of the invention to be adopted the technical scheme that：
Unmanned plane protection device of the present invention, it is characterised in that：Including fuselage and four rod members being connected on fuselage, the rod member
Outer end above be provided with by rotor electric machine drive rotate rotor, protective cover is arranged below for the outer end of the rod member and end is hinged
Support arm in protective cover, is provided with by motor-driven first gear in the protective enclosure and drives rotation by first gear
Second gear, the body surfaces of the second gear are hinged with a V-arrangement hinge bar, and the other end of the V-arrangement hinge bar passes through
Middle hinge bar is hinged on support arm.
Further, the outer end of above-mentioned support arm is provided with curved support beam.
Further, above-mentioned support arm includes upper rod section, lower rod section and the spring between upper and lower bar segment, in lower beam
Duan Shangduan is provided with the bar axle stretched into upper rod section lower channel, and the bar axle is provided with lateral pin, and the lateral pin is stretched out positioned at upper boom
The groove of section, the spring housing is on bar axle.
Further, the motor that above-mentioned driving first gear is rotated is located at the side of protective cover.
Further, the height put on the curved support beam of above-mentioned support arm outer end is at least above rotor height.
Further, the wall of above-mentioned protective cover is provided with the hinge of spacing strip groove, middle hinge bar and V-arrangement hinge bar
Pin is extend into spacing strip groove, and depressed part is provided with spacing strip groove high order end.
The method of work of unmanned plane protection device of the present invention, it is characterised in that：Wherein unmanned plane protection device includes fuselage
With four rod members being connected on fuselage, it is provided with above the outer end of the rod member and the rotor for rotating is driven by rotor electric machine, it is described
The outer end of rod member is arranged below the support arm that protective cover and end are hinged in protective cover, is provided with by motor in the protective enclosure
The first gear of driving and the second gear rotated by first gear driving, the body surfaces of the second gear are hinged with a V
Shape hinge bar, the other end of the V-arrangement hinge bar is hinged on support arm by middle hinge bar；Landing shape is in unmanned plane
Under state, motor drives first gear to rotate, and makes second gear drive V-arrangement hinge bar and middle hinge bar to act, and then make support
Arm is mutually perpendicular to rod member, so as to support unmanned plane can be played；It is under state of flight in unmanned plane, motor drives first gear
Rotate, make second gear drive V-arrangement hinge bar and middle hinge bar to act, and then put support arm, so as to avoid and build
Thing damages rotor when touching, while support arm can be avoided to stop the sight line of the video camera on unmanned plane.
Advantages of the present invention：Unmanned plane protection device of the present invention can be between landing gear position and the protected position of rotor
Mobile, when unmanned plane terrain clearance is more than default critical value, the protection device is located at the position of protection rotor, will not stop
Camera obscures the visual field of camera, and plays a part of to protect rotor；When unmanned plane terrain clearance is less than default critical value,
The protection device is located at the position of undercarriage, it can be ensured that unmanned plane safe falling.The support arm（Protective position）With dual work(
Can, it is ensured that the safety of rotor in flight and descent.The light and handy firm, mechanism of the protection device is simple, convenient disassembly, easily
Carry, can be assembled with a variety of unmanned planes.For manufacturer, it is only necessary to produce a product just can realize it is double
Weight function, with huge economic worth.
Brief description of the drawings：
Fig. 1 is the unmanned plane stereogram that protection device is located at landing gear position；
Fig. 2 is the unmanned plane stereogram that protection device is located at protection rotor-position；
Fig. 3 is the detail view that protection device is located at landing gear position；
Fig. 4 is the detail view that protection device is located at protection rotor-position；
Fig. 5 is fitness machine composition of the support arm in protection rotor-position；
Fig. 6 is fitness machine composition of the support arm in landing gear position；
Fig. 7 is fitness machine composition of the support arm between protection rotor and landing gear position；
Fig. 8 is the detail view of support arm；
Fig. 9 is electric operation control circuit figure；
Figure 10 is the overall workflow figure of protection device.
Specific embodiment：
In order that advantages of the present invention, purpose, technical scheme are of greater clarity, enter traveling one to the present invention below in conjunction with the accompanying drawings
The explanation of step.
Unmanned plane protection device of the present invention includes fuselage 1 and four rod members 2 being connected on fuselage, outside the rod member 2
End is provided with the rotor 5 that rotation is driven by rotor electric machine 4 above, and protective cover 3 is arranged below for the outer end of the rod member 2 and end is hinged
Support arm 7 in protective cover, is provided with the first gear 11 that is driven by motor 6 and by first gear 11 in the body of the protective cover 3
The second gear 13 for rotating is driven, the body surfaces of the second gear 13 are hinged with a V-arrangement hinge bar 15, and the V-arrangement is hinged
The other end of bar 15 passes through middle hinge bar 18 and is hinged on support arm 7.
Further, the outer end of above-mentioned support arm 7 is provided with curved support beam 8.
Further, above-mentioned support arm 7 includes upper rod section 701, lower rod section 702 and the spring between upper and lower bar segment
72, the bar axle 71 stretched into upper rod section lower channel is provided with the upper end of lower rod section 702, the bar axle is provided with lateral pin 73, described
Lateral pin 73 stretches out the groove 74 positioned at upper rod section, and the spring 72 is enclosed within bar axle 71.
Further, the motor 6 that above-mentioned driving first gear is rotated is located at the side of protective cover 3.
Further, in order to preferably protect rotor, the height put on the curved support beam of above-mentioned support arm outer end is at least
Higher than rotor height.
Further, for having stable behavior reliability, the wall of above-mentioned protective cover is provided with spacing strip groove 16, centre hinge
Extension bar is extend into spacing strip groove with the swivel pin of V-arrangement hinge bar, and depressed part is provided with spacing strip groove high order end
1601。
The method of work of unmanned plane protection device of the present invention, wherein unmanned plane protection device include fuselage 1 and are connected to machine
Four rod members 2 with it, are provided with the rotor 5 that rotation is driven by rotor electric machine 4 above the outer end of the rod member 2, the rod member 2
Outer end is arranged below the support arm 7 that protective cover 3 and end are hinged in protective cover, is provided with the body of the protective cover 3 and is driven by motor 6
Dynamic first gear 11 and the second gear 13 of rotation is driven by first gear 11, the body surfaces of the second gear 13 are hinged
There is a V-arrangement hinge bar 15, the other end of the V-arrangement hinge bar 15 passes through middle hinge bar 18 and is hinged on support arm 7；At nobody
Machine is under landing state, and motor drives first gear to rotate, and makes second gear drive V-arrangement hinge bar and middle hinge bar to move
Make, and then support arm is mutually perpendicular to rod member（Such as Fig. 1,3,6）, so as to support unmanned plane can be played；It is in unmanned plane and is flown
Under row state, motor drives first gear to rotate, and makes second gear drive V-arrangement hinge bar and middle hinge bar to act, and then make
Support arm is put（Such as Fig. 2,4,5）, so as to damage rotor when avoiding and being touched with building, while support arm can be avoided to stop being mounted in
The sight line of the video camera on unmanned plane.
More specifically：
Reference picture 1, the protection device of unmanned plane（Support arm 7）Positioned at the position of undercarriage, as the undercarriage of unmanned plane.
Reference picture 2, the protection device of unmanned plane（Support arm 7）Upper pendulum, positioned at the position of protection rotor, for protecting rotor
Touch building etc..
Unmanned plane of the present invention is a kind of gyroplane, and wherein flight control units, control circuit and motion are not marked,
Each rod member 2 is generally aligned in the same plane, and the angle of adjacent rod member is equal, and each rod member is separately mounted on fuselage.
Flight control units (without display in figure) and gyroscope, magnetometer, the acceleration installed on unmanned aerial vehicle body 1
Meter, power supply, emitter, receiver and video camera etc. are coupled.Rotor electric machine 4 and respective electronics in power supply, flight control units
Speed control connection (without display in figure).
Support arm 7 and bent support beam 8 can play damping, buffering effect.
Fig. 3 shows that protection device in Fig. 1 is located at the detail section of landing gear position.Fig. 4 shows protection device in Fig. 2
Positioned at the detail section of protection rotor-position.Control device is mounted with unmanned plane（Measurement is positive and negative apart from rear controlled motor away from ground
To action）Carry out the motion of control protective unit, control device (not shown) may decide that when protection device has moved to
The rack position that falls and rotor protection position (being put on support arm).
Reference picture 5, motor 6 is arranged on the side of protective cover 3 with screw by the hole 9 on protective cover.
Motor 6 drives its output shaft 10 to move and then drive first gear 11 to rotate, and axle 12 is fixedly mounted on protective cover 3
Inside, second gear 13 is fixed on axle 12, and second gear is engaged with first gear, so second gear 13 is rotated around axle 12.
First connecting rod 15（V-arrangement hinge bar 15）In v fonts, a tip is extended in its end, is formed with first connecting rod 15
It is overall.
First connecting rod 15（V-arrangement hinge bar 15）End and 2/3 radius in second gear 13 at point articulated a, pin joint
It is 14, second gear 13 drives first connecting rod 15 to move by pin joint 14.
Second connecting rod 18（Middle hinge bar 18）Another end with first connecting rod 15 is hinged, and pin joint is 17, and first connects
Bar 15 drives second connecting rod 18 to move together by pin joint 17, is slided in the groove 16 that pin joint 17 can only be on protective cover 3.The
Another end of two connecting rods 18 is point articulated with support arm 7 one, and pin joint is 20, on the end of support arm 7 and protective cover 3,
Fixing point is 19.
Spacing strip groove 16 on protective cover 3 can be used to change the position of support arm 7, and two end points of groove 16 have
One recess, low order end and the second gear 13 of groove will not interfere with.When the protection device as rotor, first connecting rod 15 and
The pin joint 17 of two connecting rods 18 is located at the high order end of spacing strip groove 16, if being subject to power straight down on support arm 7, hinge
Contact 17 can be stuck in the recess of the left end of spacing strip groove 16, and motion self-locking prevents support arm 7 from moving to rotor protected
Position in addition.The tip of first connecting rod 15 and the axle 12 of second gear are abutted and mutually constrained, the position of such support arm 7 simultaneously
Put and fixed, and the part power being subject on support arm 7 will be applied on protective cover 3 rather than on motor 6 by pin joint 19,
Motor 6 is protected not to be damaged.
Reference picture 6, when unmanned plane terrain clearance is less than critical value（Certain value, such as 1.5 meters or 2 meters）, protection device（Branch
Brace 7 and curved support beam 8）The position of undercarriage can be moved to, motor 6 drives first gear 11 to rotate by axle 10, due to
Engaged with first gear, so as to drive second gear 13 to rotate.Because first connecting rod 15 cuts with scissors with 1: 14 in second gear 13
Connect, so second gear 13 drives first connecting rod 15 to move, the pin joint 17 of first connecting rod 15 and second connecting rod 18 moves to groove
16 low order end, now support arm 7 is perpendicular to the ground, and ground makes pin joint 17 be stuck in groove right-hand member in face of the reaction force of support arm 7
Recess, motion self-locking, the position beyond preventing support arm 7 from moving to undercarriage.Another end of second connecting rod 18 with
On support arm 7 one is point articulated, and the end of support arm and protective cover 3 are articulated with a little 19.Now, first connecting rod 15 abuts the second tooth
Axle 14 in wheel, it is therefore prevented that the further motion of first connecting rod 15, assists to secure the position of support arm 7 with groove 16.During landing,
The part power being subject on support arm 7 is applied on protective cover 3 also by pin joint 19.
The motion is installed on the inside of protective cover 3, and protective cover 3 can be fixed on the bottom of rod member 2 with screw, by
In convenient disassembly, protective cover 3 can be connected with a variety of unmanned planes.Part can also be from protective cover in motion
Middle dismounting, carries very convenient.
Reference picture 7, situation of the mechanism between the position of landing gear position and protection rotor, it can be observed that the two of groove 16
End.
Reference picture 8, during unmanned plane during flying, when bent support beam 8 is clashed into, the spring 72 in support arm 7
With certain elastic displacement, the displacement of axle 71 is determined by the length of groove 74, and the part 73 being fixed on axle 71 plays spacing
Effect, slided in groove 74, whole support arm 7 plays a part of damping, buffering, other devices that are compressible and can restoring
It is equally applicable.
Reference picture 9, the motion of mechanism is controlled by motor 6, and the motion of motor 6 is by circuit control.Circuit includes treatment
Device, it is coupled on internal memory, also including sensor, motor, power supply is (not shown).Computer program is stored in internal memory, is processed
Device configuration processor carrys out controlled motor motion, so as to realize the control to motion.
Figure 10 is the workflow of protection device, wherein：
Step 1：Start；
Step 2：Processor sends the request for needing to provide terrain clearance to sensor；
Step 3：Sensor receives request, and the height value for measuring unmanned plane is supplied to processor；
Step 4：Processor receives the height value that sensor is provided；
Step 5：Processor checks that internal memory is currently located at landing gear position or rotor by protective position determining protection device；
Step 6 or 10：Processor is contrasted terrain clearance numerical value and critical value；
Step 7 or 11：Protection device stop motion；
Step 8：Motor-driven mechanism makes protection device move to the position of protection rotor；
Step 9：The positional information that protection device is located at protection rotor is stored in internal memory；
Step 12：Motor-driven mechanism makes protection device move to the position of undercarriage；
Step 13：The positional information that protection device is located at undercarriage is stored in internal memory.
When default critical value is 1.5m, if a processor determine that protection device is located at landing gear position, processor will
Terrain clearance numerical value is contrasted with critical value, if a processor determine that height is less than critical value, protection device stop motion；Such as
Fruit processor judges that height is more than critical value, and processor controlled motor makes protection device move to the position of protection rotor；Protection
The location of device information Store is in internal memory.
If a processor determine that protection device be located at the protected position of rotor, processor by terrain clearance numerical value with it is critical
Value is contrasted, if a processor determine that height is less than critical value, processor controlled motor makes protection device move to undercarriage
Position；If a processor determine that height is more than or equal to critical value, protection device stop motion；The location of protection device letter
Breath storage is in internal memory.
Advantages of the present invention：Unmanned plane protection device of the present invention can be between landing gear position and the protected position of rotor
Mobile, when unmanned plane terrain clearance is more than default critical value, the protection device is located at the position of protection rotor, will not stop
Camera obscures the visual field of camera, and plays a part of to protect rotor；When unmanned plane terrain clearance is less than default critical value,
The protection device is located at the position of undercarriage, it can be ensured that unmanned plane safe falling.The support arm（Protective position）With dual work(
Can, it is ensured that the safety of rotor in flight and descent.The light and handy firm, mechanism of the protection device is simple, convenient disassembly, easily
Carry, can be assembled with a variety of unmanned planes.For manufacturer, it is only necessary to produce a product just can realize it is double
Weight function, with huge economic worth.
Claims (8)
1. a kind of unmanned plane protection device, it is characterised in that：Including fuselage and four rod members being connected on fuselage, the rod member
Outer end above be provided with by rotor electric machine drive rotate rotor, protective cover is arranged below for the outer end of the rod member and end is hinged
Support arm in protective cover, is provided with by motor-driven first gear in the protective enclosure and drives rotation by first gear
Second gear, the body surfaces of the second gear are hinged with a V-arrangement hinge bar, and the other end of the V-arrangement hinge bar passes through
Middle hinge bar is hinged on support arm.
2. unmanned plane protection device according to claim 1, it is characterised in that：The outer end of the support arm is provided with arc
Support beam.
3. unmanned plane protection device according to claim 1, it is characterised in that：The support arm includes upper rod section, lower beam
Section and the spring between upper and lower bar segment, the bar axle stretched into upper rod section lower channel, the bar are provided with lower rod section upper end
Axle is provided with lateral pin, and the lateral pin stretches out the groove positioned at upper rod section, and the spring housing is on bar axle.
4. unmanned plane protection device according to claim 1, it is characterised in that：The motor for driving first gear to rotate
It is located at the side of protective cover.
5. unmanned plane protection device according to claim 1, it is characterised in that：The curved support of the support arm outer end
The height put on beam is at least above rotor height.
6. unmanned plane protection device according to claim 1, it is characterised in that：The wall of the protective cover is provided with spacing
Strip groove, middle hinge bar is extend into spacing strip groove with the swivel pin of V-arrangement hinge bar, most left in spacing strip groove
End is provided with depressed part.
7. a kind of method of work of unmanned plane protection device, it is characterised in that：Wherein unmanned plane protection device includes fuselage and company
Four rod members on fuselage are connected on, are provided with above the outer end of the rod member and the rotor for rotating, the rod member is driven by rotor electric machine
Outer end the support arm that protective cover and end are hinged in protective cover is arranged below, be provided with the protective enclosure by motor drive
First gear and the second gear for rotating is driven by first gear, the body surfaces of the second gear are hinged with V-arrangement hinge
Extension bar, the other end of the V-arrangement hinge bar is hinged on support arm by middle hinge bar；Landing state is in unmanned plane
Under, motor drives first gear to rotate, and makes second gear drive V-arrangement hinge bar and middle hinge bar to act, and then make support arm
It is mutually perpendicular to rod member, so as to support unmanned plane can be played；It is under state of flight in unmanned plane, motor drives first gear to turn
It is dynamic, make second gear drive V-arrangement hinge bar and middle hinge bar to act, and then put support arm, so as to avoid and building
Rotor is damaged during touching, while support arm can be avoided to stop the sight line of the video camera on unmanned plane.
8. the method for work of unmanned plane protection device according to claim 7, it is characterised in that：When unmanned plane terrain clearance
During less than 1.5 meters, support arm can move to the position of undercarriage, and particularly, motor drives first gear to rotate by axle, by
Engaged in first gear, so that drive second gear to rotate, due to V-arrangement hinge bar（15）With a bit in second gear（14）
It is hinged, second gear（13）Drive V-arrangement hinge bar（15）Motion, V-arrangement hinge bar（15）And second connecting rod（18）Pin joint
（17）Move to bar shaped locating slot（16）Low order end, now support arm（7）Perpendicular to the ground, ground faces support arm（7）It is anti-
Active force makes pin joint（17）The recess of groove right-hand member is stuck in, motion self-locking prevents support arm（7）Move to beyond undercarriage
Position, another end of middle hinge bar 18 and support arm（7）On one point articulated, the end of support arm and protective cover（3）
It is articulated with a little（19）, now, V-arrangement hinge bar（15）Axle in second gear（14）, it is therefore prevented that V-arrangement hinge bar（15）Enter
One step is moved, with groove（16）Assistance secures support arm（7）Position；During landing, support arm（7）On the part power that is subject to also lead to
Cross pin joint（19）It is applied on protective cover 3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710038720.0A CN106828889B (en) | 2017-01-19 | 2017-01-19 | Unmanned aerial vehicle protection device and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038720.0A CN106828889B (en) | 2017-01-19 | 2017-01-19 | Unmanned aerial vehicle protection device and working method thereof |
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| CN107757882A (en) * | 2017-09-25 | 2018-03-06 | 南京律智诚专利技术开发有限公司 | A kind of unmanned plane with rubber-tyred landing pad |
| CN108382586A (en) * | 2018-01-31 | 2018-08-10 | 天津翰宇昊德科技发展有限公司 | Unmanned plane with collision prevention function |
| CN108583181A (en) * | 2018-05-11 | 2018-09-28 | 西南交通大学 | Deformable air-ground amphibious unmanned plane |
| CN108583854A (en) * | 2018-04-10 | 2018-09-28 | 清远市巨劲科技有限公司 | A kind of contractile miniature portable unmanned plane of wing |
| CN108945443A (en) * | 2018-08-27 | 2018-12-07 | 深圳新驱动力科技有限公司 | A kind of unmanned plane with shatter-resistant collision prevention function |
| CN109383777A (en) * | 2017-08-03 | 2019-02-26 | 中交遥感载荷（北京）科技有限公司 | A kind of unmanned plane body |
| CN110104192A (en) * | 2019-05-14 | 2019-08-09 | 深圳市智旋科技有限公司 | A kind of 3D light show unmanned plane device and application method |
| CN111619794A (en) * | 2020-06-02 | 2020-09-04 | 许昌学院 | Unmanned aerial vehicle buffering fender bracket that rises and falls |
| CN112158344A (en) * | 2020-09-23 | 2021-01-01 | 成都儒气合商贸有限公司 | Anti-collision protection equipment for security protection unmanned aerial vehicle |
| CN112319828A (en) * | 2020-10-09 | 2021-02-05 | 浙江理工大学 | Unmanned aerial vehicle protection device, unmanned aerial vehicle device and driving method thereof |
| WO2022110211A1 (en) * | 2020-11-30 | 2022-06-02 | 深圳市大疆创新科技有限公司 | Protection mechanism, unmanned aerial vehicle assembly, and unmanned aerial vehicle |
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