CN109334979A - A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard - Google Patents

A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard Download PDF

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Publication number
CN109334979A
CN109334979A CN201811248407.0A CN201811248407A CN109334979A CN 109334979 A CN109334979 A CN 109334979A CN 201811248407 A CN201811248407 A CN 201811248407A CN 109334979 A CN109334979 A CN 109334979A
Authority
CN
China
Prior art keywords
monitor station
monitoring devices
condition monitoring
parachute
station matrix
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201811248407.0A
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Chinese (zh)
Inventor
李银聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201811248407.0A priority Critical patent/CN109334979A/en
Publication of CN109334979A publication Critical patent/CN109334979A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C39/00Aircraft not otherwise provided for
    • B64C39/02Aircraft not otherwise provided for characterised by special use
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C25/00Alighting gear
    • B64C25/32Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/58Arrangements or adaptations of shock-absorbers or springs
    • B64C25/62Spring shock-absorbers; Springs
    • B64C25/64Spring shock-absorbers; Springs using rubber or like elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/32Rotors
    • B64C27/46Blades
    • B64C27/467Aerodynamic features
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D17/00Parachutes
    • B64D17/62Deployment
    • B64D17/72Deployment by explosive or inflatable means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D17/00Parachutes
    • B64D17/80Parachutes in association with aircraft, e.g. for braking thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00Equipment not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U70/00Launching, take-off or landing arrangements
    • B64U70/80Vertical take-off or landing, e.g. using rockets
    • B64U70/83Vertical take-off or landing, e.g. using rockets using parachutes, balloons or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64UUNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00UAVs specially adapted for particular uses or applications

Abstract

The present invention provides a kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard, including flight propeller, and monitor station matrix buffers parachute, monitor, rubbery foam heelpiece, sliding rail, auxiliary landing umbrella, protecting against shock outer wall and landing stabilizer blade;The flight propeller is connected by drive rod and is movably arranged on monitor station matrix;Monitor station matrix bottom end is equipped with buffering parachute;The rubbery foam heelpiece is located at immediately below sliding rail, and rubbery foam heelpiece top is connected with buffering parachute bottom end;The monitor station outer surface of matrix is equipped with hitch point, and monitor station matrix hangs installation protecting against shock outer wall by hitch point;Landing stabilizer blade is installed immediately below the flight propeller.The setting for buffering parachute solves existing condition monitoring devices shortage fall protection mechanism once accident occurs in the sky and be easy to cause biggish damage after falling, influences condition monitoring devices main component function, or even the problem of damage internal data.

Description

A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard
Technical field
The invention belongs to environmental monitoring technology fields, more specifically, in particular to a kind of Hai Lu of automatic falling guard Dual-purpose condition monitoring devices.
Background technique
Environmental monitoring refers to the activity that environmental monitoring mechanism monitors environmental quality and measures.Environmental monitoring It is to be monitored and measured by the index to reflection environmental quality, to determine the height of environmental situation and environmental quality. The content of environmental monitoring mainly includes the monitoring of the monitoring of physical index, the monitoring of chemical index and the ecosystem.
Existing sea land dual-purpose environment monitoring device is mostly carried using UAV, be using radio robot and The not manned aircraft for the presetting apparatus manipulation provided for oneself, or fully or intermittently automatically operated by car-mounted computer.
Based on above-mentioned, the inventors discovered that, the existing shortage fall protection using unmanned plane carry condition monitoring devices Mechanism be easy to cause biggish damage once accident occurs in the sky after falling, influence condition monitoring devices main component function Can, or even damage internal data.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of dual-purpose environmental surveillance dresses in the extra large land of automatic falling guard It sets, to solve the existing shortage fall protection mechanism using unmanned plane carry condition monitoring devices, once it anticipates in the sky Outside, it be easy to cause biggish damage after falling, influences condition monitoring devices main component function, or even damage asking for internal data Topic.
The purpose and effect of the dual-purpose condition monitoring devices in extra large land of the automatic falling guard of the present invention, by technology hand in detail below Section is reached:
A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard include flight propeller, monitor station matrix, buffering Parachute, monitor, rubbery foam heelpiece, sliding rail, auxiliary landing umbrella, protecting against shock outer wall and landing stabilizer blade;The flight spiral Paddle is connected by drive rod and is movably arranged on monitor station matrix;Monitor station matrix top is equipped with buffering parachute; It is equipped with immediately below the monitor station matrix and sliding rail is connected and installed by sliding rail, and monitor station matrix is equipped with prison by sliding rail Visual organ, and rail tips are wrapped up by buffering parachute;The rubbery foam heelpiece is located at immediately below sliding rail;The monitoring stylobate External surface is equipped with hitch point, and monitor station matrix hangs installation protecting against shock outer wall by hitch point;The monitor station matrix is just Lower section is equipped with landing stabilizer blade.
Further, there are four the flight propeller has altogether, and flight propeller surface is arc;The flight spiral Paddle includes main turbulence blades and root securing plate;The main turbulence blades tail portion is fully wrapped around by root securing plate.
Further, the monitor station substrate support arm uses engraved structure, and is driven cable and passes through inside engraved structure; The protecting against shock outer wall is made of buffering foam, is hung by the hitch point on the inside of monitor station matrix.
Further, gas generator and igniter built in the buffering parachute;Body after the buffering parachute expansion Product is 10 times of receiving state, and lifts monitor station matrix upwards by sliding rail after buffering parachute expansion.
Further, the monitor case is two layers, and the shell outer shell of monitor is wrapped up by soft silica gel pad.
Further, the rubbery foam heelpiece is soft rubber pad, and rubbery foam heelpiece is circle;And rubbery foam Heelpiece is undaform.
Further, the developed area of the auxiliary landing umbrella is to buffer a quarter of parachute, and auxiliary landing umbrella Switch with buffering parachute be connected, and parachute be total to there are four, be separately mounted to monitor station matrix quadrangle.
Further, the landing stabilizer blade is arc-shaped rubber hollow base, and land stabilizer blade stabilizer blade and monitor station matrix Between angle be 105 °.
Compared with prior art, the invention has the following beneficial effects:
The setting for buffering parachute solves existing condition monitoring devices and lacks fall protection mechanism, once in the sky Accident occurs, biggish damage is be easy to cause after falling, influences condition monitoring devices main component function, or even damages internal number According to the problem of, monitor station matrix by buffering the setting of parachute, when monitoring arrangement falls, by effect of inertia, on sliding rail It slides upwards, triggers ignition switch, igniter fire irritant gas generator, gas generator internal gas acts on rapidly Buffering parachute is opened in expansion, after buffering parachute expansion that monitor and sliding rail lower end is fully wrapped around, is slowed down, in conjunction with Rubbery foam heelpiece and landing stabilizer blade, guarantee stable landing, carry out package buffer protection to monitoring arrangement inside important component.
The setting of sliding rail solves existing condition monitoring devices and lacks fall protection mechanism, once it anticipates in the sky Outside, it be easy to cause biggish damage after falling, influences condition monitoring devices main component function, or even damage asking for internal data Topic, by being wrapped up close to the outer shell of monitor by soft silica gel pad in sliding rail, is conducive to further enhance and fall in unmanned plane When, protection of the fender system to monitor in equipment, while sliding rail internal battery connection igniter and auxiliary landing umbrella, to igniting Device and auxiliary landing umbrella are powered, and when unmanned plane falls, are acted on by inertia and parachute, and sliding rail is to above monitor station matrix Sliding is in landing stabilizer blade and rubbery foam heelpiece in same level.
The setting of rubbery foam heelpiece and landing stabilizer blade solves existing condition monitoring devices and lacks fall protection machine System, once accident occurs in the sky, be easy to cause biggish damage, influences condition monitoring devices main component function after falling, The problem of even damaging internal data, by the design of rubbery foam heelpiece, in conjunction with buffering parachute, further to environmental surveillance Appliance arrangement integrally carries out buffer protection, and when falling, rubbery foam heelpiece priority buffer parachute is contacted with bottom surface, into One step has dispersed the stress for buffering parachute, to improve anti-shock absorbing ability;By the design for the stabilizer blade that lands, ring is improved The ground connection performance of border monitoring arrangement enables condition monitoring devices steadily to land or dampening.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
Fig. 2 is dismounting buffering parachute partial structure diagram of the invention.
Fig. 3 is the structural schematic diagram of disassembly protecting against shock outer wall of the invention.
Fig. 4 is buffering parachute Unclosing structure schematic diagram of the invention.
Fig. 5 is overlooking structure diagram of the invention.
Fig. 6 is dismounting buffering parachute partial top structural schematic diagram of the invention.
Fig. 7 is buffering parachute partial interior igniter structure schematic diagram of the invention.
In figure, the corresponding relationship of component names and accompanying drawing number are as follows:
1- flight propeller, 2- monitor station matrix, 3- buffering parachute, 4- monitor, 5- rubbery foam heelpiece, 6- are sliding Rail, 7- auxiliary landing umbrella, 8- protecting against shock outer wall, 9- landing stabilizer blade, the main turbulence blades of 101-, the root 102- securing plate, 301- gas Body generator, 302- igniter.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more;Term " on ", The orientation or positional relationship of the instructions such as "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair Limitation of the invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and should not be understood as instruction or Imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected;It can be machine Tool connection, is also possible to be electrically connected;It can be directly connected, it can also be indirectly connected through an intermediary.For this field For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment:
As shown in attached drawing 1 to attached drawing 7:
The present invention provides a kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard, including flight propeller 1, monitoring Stylobate body 2 buffers parachute 3, monitor 4, rubbery foam heelpiece 5, sliding rail 6, auxiliary landing umbrella 7, protecting against shock outer wall 8 and landing Stabilizer blade 9;The flight propeller 1 is connected by drive rod and is movably arranged on monitor station matrix 2;The monitor station matrix 2 Top is equipped with buffering parachute 3;It is equipped with immediately below the monitor station matrix 2 and sliding rail 6 is connected and installed by sliding rail, and supervised Television stations matrix 2 is equipped with monitor 4 by sliding rail 6, and 6 top of sliding rail is wrapped up by buffering parachute 3;The rubbery foam bottom Pad 5 is located at immediately below sliding rail 6;2 outer surface of monitor station matrix is equipped with hitch point, and monitor station matrix 2 is outstanding by hitch point Hang installation protecting against shock outer wall 8;Landing stabilizer blade 9 is installed immediately below the monitor station matrix 2.
Wherein, there are four the flight propeller 1 has altogether, and 1 surface of flight propeller is arc;The flight propeller 1 includes main turbulence blades 101 and root securing plate 102;It is wrapped completely by root securing plate 102 101 tail portion of main turbulence blades It wraps up in, by the whole design for using arc aerodynamic arrangement of flight propeller 1, promotes the aeroperformance of flight propeller 1, meanwhile, It, can be right in unexpected generation by the way that flight propeller 1 is designed to two parts, main turbulence blades 101 and root securing plate 102 When flight propeller 1 damages, diversifies risks and stress is promoted flight propeller 1 and resisted by the reinforcing of root securing plate 102 Impact capacity.
Wherein, 2 support arm of monitor station matrix uses engraved structure, and is driven cable and passes through inside engraved structure;Institute It states protecting against shock outer wall 8 to be made of buffering foam, is hung by the hitch point of 2 inside of monitor station matrix, pass through engraved structure Monitor station matrix 2 is greatly reduced the weight of equipment entirety, it is whole to be conducive to lifting means while guaranteeing structural strength Body impact resistance, while monitor station matrix 2 can hang protecting against shock outer wall 8 by hitch point, further be promoted to monitor station The buffer protection of matrix 2.
Wherein, gas generator 301 and igniter 302 built in the buffering parachute 3;The buffering parachute 3 expands Volume is 10 times of receiving state afterwards, and buffers and lift monitor station matrix 2 upwards by sliding rail 6 after parachute 3 expands, and is led to The too slow setting for rushing parachute 3, when monitoring arrangement falls, by effect of inertia, the monitor station matrix 2 on sliding rail 6 is slided upwards Dynamic, triggering igniter 302 switchs, the igniting irritant gas generator 301 of igniter 302, and 301 internal gas of gas generator is rapid Buffering parachute 3 is opened in effect expansion, and buffering parachute 3 is fully wrapped around by monitor 4 and 6 lower end of sliding rail after expanding, and is subtracted Speed, bound rubber foam base mat 5 and landing stabilizer blade 9, guarantee stable landing, and it is slow to carry out package to monitoring arrangement inside important component Punching protection.
Wherein, 4 shell of monitor is two layers, and the shell outer shell of monitor 4 is wrapped up by soft silica gel pad, monitoring The shell outer shell of device 4 is wrapped up by soft silica gel pad, is conducive to further enhance when monitoring arrangement falls, and buffering is set in equipment Apply the protection to monitor 4.
Wherein, the rubbery foam heelpiece 5 is soft rubber pad, and rubbery foam heelpiece 5 is circle;And rubbery foam bottom Pad 5 is undaform, further whole to monitoring arrangement equipment in conjunction with buffering parachute 3 by the design of rubbery foam heelpiece 5 Buffer protection is carried out, when falling, 5 priority buffer parachute 3 of rubbery foam heelpiece is contacted with bottom surface, while undaform rubber Film can be good at absorbing buffering, to improve anti-shock absorbing ability.
Wherein, the developed area of the auxiliary landing umbrella 7 is to buffer a quarter of parachute 3, and auxiliary landing umbrella 7 is opened Close with buffering parachute 3 be connected, and parachute 7 be total to there are four, 2 four jiaos of monitor station matrix are separately mounted to, in monitoring arrangement It when falling, by effect of inertia, buffers parachute 3 and opens, linkage triggering auxiliary landing umbrella 7 switchs, and passes through setting for auxiliary landing umbrella 7 Meter further slows down to monitoring arrangement in landing, further enhances the safety of whole equipment.
Wherein, the landing stabilizer blade 9 is arc-shaped rubber hollow base, and land 9 stabilizer blade of stabilizer blade and monitor station matrix 2 it Between angle be 105 °, by land stabilizer blade 9 design, improve the ground connection performance of condition monitoring devices, make condition monitoring devices It can steadily land or dampening.
The specifically used mode and effect of the present embodiment:
In the present invention, when monitoring arrangement falls, by effect of inertia, the monitor station matrix 2 on sliding rail 6 slides upwards, It triggers igniter 302 to switch, the igniting irritant gas generator 301 of igniter 302,301 internal gas of gas generator is made rapidly With expansion, buffering parachute 3 is opened, buffering parachute 3 is fully wrapped around by monitor 4 and 6 lower end of sliding rail after expanding, while falling When falling, 5 priority buffer parachute 3 of rubbery foam heelpiece is contacted with bottom surface, further dispersed buffer parachute 3 by Power, so that anti-shock absorbing ability is improved, while undaform sheet rubber can be good at absorbing buffering, to improve anti-slow Rush impact capacity;By the design for the stabilizer blade 9 that lands, the ground connection performance of condition monitoring devices is improved, condition monitoring devices are enable Steadily land or dampening.
The embodiment of the present invention is given for the purpose of illustration and description, and is not exhaustively or by this to send out It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing Selecting and describe embodiment is and to make those skilled in the art to more preferably illustrate the principle of the present invention and practical application It will be appreciated that the present invention is to design various embodiments suitable for specific applications with various modifications.

Claims (8)

1. a kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard, it is characterised in that: the Hai Lu of the automatic falling guard Dual-purpose condition monitoring devices include flight propeller (1), and monitor station matrix (2) buffers parachute (3), monitor (4), rubber Foam base mat (5), sliding rail (6), auxiliary landing umbrella (7), protecting against shock outer wall (8) and landing stabilizer blade (9);The flight propeller (1) it is connected and is movably arranged on monitor station matrix (2) by drive rod;Monitor station matrix (2) top is equipped with buffering Parachute (3);It is equipped with immediately below the monitor station matrix (2) and is connected and installed by sliding rail sliding rail (6), and monitor station matrix (2) it is equipped with monitor (4) by sliding rail (6), and sliding rail (6) top is wrapped up by buffering parachute (3);The rubbery foam Heelpiece (5) is located at immediately below sliding rail (6);Monitor station matrix (2) outer surface is equipped with hitch point, and monitor station matrix (2) is logical Cross hitch point suspension installation protecting against shock outer wall (8);Landing stabilizer blade (9) is installed immediately below the monitor station matrix (2).
2. the dual-purpose condition monitoring devices in extra large land of automatic falling guard as described in claim 1, it is characterised in that: the flight spiral shell There are four rotation paddle (1) has altogether, and flight propeller (1) surface is arc;The flight propeller (1) includes main turbulence blades (101) and root securing plate (102);Main turbulence blades (101) tail portion is fully wrapped around by root securing plate (102).
3. the dual-purpose condition monitoring devices in extra large land of automatic falling guard as described in claim 1, it is characterised in that: the monitor station Matrix (2) support arm uses engraved structure, and is driven cable and passes through inside engraved structure;The protecting against shock outer wall (8) is using slow It brews foam to be made, be hung by the hitch point on the inside of monitor station matrix (2).
4. the dual-purpose condition monitoring devices in extra large land of automatic falling guard as described in claim 1, it is characterised in that: the buffering drop Fall gas generator (301) built in umbrella (3) and igniter (302);Volume is receiving state after buffering parachute (3) expansion 10 times, and monitor station matrix (2) are lifted upwards by sliding rail (6) after buffering parachute (3) expansion.
5. the dual-purpose condition monitoring devices in extra large land of automatic falling guard as described in claim 1, it is characterised in that: the monitor (4) shell is two layers, and the shell outer shell of monitor (4) is wrapped up by soft silica gel pad.
6. the dual-purpose condition monitoring devices in extra large land of automatic falling guard as described in claim 1, it is characterised in that: the rubber bubble Foam heelpiece (5) is soft rubber pad, and rubbery foam heelpiece (5) is circle;And rubbery foam heelpiece (5) is undaform.
7. the dual-purpose condition monitoring devices in extra large land of automatic falling guard as described in claim 1, it is characterised in that: the auxiliary drop The developed area for falling umbrella (7) is to buffer a quarter of parachute (3), and auxiliary landing umbrella (7) switchs and buffering parachute (3) Be connected, and parachute (7) altogether there are four, be separately mounted to monitor station matrix (2) quadrangle.
8. the dual-purpose condition monitoring devices in extra large land of automatic falling guard as described in claim 1, it is characterised in that: the landing branch Foot (9) is arc-shaped rubber hollow base, and the angle to land between stabilizer blade (9) stabilizer blade and monitor station matrix (2) is 105 °.
CN201811248407.0A 2018-10-25 2018-10-25 A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard Withdrawn CN109334979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811248407.0A CN109334979A (en) 2018-10-25 2018-10-25 A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811248407.0A CN109334979A (en) 2018-10-25 2018-10-25 A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard

Publications (1)

Publication Number Publication Date
CN109334979A true CN109334979A (en) 2019-02-15

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Application Number Title Priority Date Filing Date
CN201811248407.0A Withdrawn CN109334979A (en) 2018-10-25 2018-10-25 A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110615101A (en) * 2019-10-14 2019-12-27 河北环境工程学院 Environment detector with protection device
CN113815845A (en) * 2021-08-19 2021-12-21 嘉应学院 Emergency parachute landing and airbag mixed use device suitable for multi-rotor unmanned aerial vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110615101A (en) * 2019-10-14 2019-12-27 河北环境工程学院 Environment detector with protection device
CN113815845A (en) * 2021-08-19 2021-12-21 嘉应学院 Emergency parachute landing and airbag mixed use device suitable for multi-rotor unmanned aerial vehicle
CN113815845B (en) * 2021-08-19 2023-11-03 嘉应学院 Emergency parachute and safety airbag mixed device suitable for multi-rotor unmanned aerial vehicle

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Application publication date: 20190215