CN104401499A - Landing buffering device for unmanned aerial vehicle recovery by parachute - Google Patents
Landing buffering device for unmanned aerial vehicle recovery by parachute Download PDFInfo
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- CN104401499A CN104401499A CN201410685736.7A CN201410685736A CN104401499A CN 104401499 A CN104401499 A CN 104401499A CN 201410685736 A CN201410685736 A CN 201410685736A CN 104401499 A CN104401499 A CN 104401499A
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- air bag
- balloonet
- main gasbag
- aerial vehicle
- unmanned aerial
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Abstract
The invention provides a landing buffering device for unmanned aerial vehicle recovery by a parachute. The device comprises a main air bag, a secondary air bag, an interconnected blasting opening and an exhausting blasting opening; the main air bag mounted below an unmanned aerial vehicle is full of air before arriving at the ground, and the main air bag performs buffering after arriving at the ground and under the pressing of the unmanned aerial vehicle, meanwhile, some air flows into the secondary air bag through the interconnected blasting opening, so as to form a bigger air bag body, the air bag body performs buffering once being continuously pressed by the unmanned aerial vehicle, and air is discharged to the surrounding environment through the exhausting blasting opening in the main air bag or the secondary air bag. According to the device, the volume of air charged to the unmanned aerial vehicle is unchanged, the secondary air bag is added, and therefore, the whole buffering effect is improved.
Description
Technical field
The present invention relates to unmanned vehicle, particularly relate to Landing Buffer device when a kind of unmanned vehicle parachuting is reclaimed.
Background technology
Parachuting is common a kind of unmanned vehicle way of recycling in conjunction with air bag buffering.The effect of air bag provides buffering when aircraft contacts to earth, and reduces the speed of hitting ground, reduces the impact of moment of contacting to earth, realize the protection to aircraft.The principle that air bag realizes buffering is when parachute-borne craft is close to ground, the air bag be between aircraft and ground is oppressed and is deformed, while aircraft compression bladder, air bag is for the antagonistic force of aircraft, aircraft is made to obtain the acceleration/accel contrary with descending speed direction, thus descending speed is diminished, this process meets hooke theorem substantially, and the kinetic energy of aircraft descending motion is the compression potential energy of inside air bag gas.But when aircraft descending motion speed due to buffer action is reduced to be zero time, air bag will have a rebound, to aircraft generation application force upwards, the potential energy of internal gas is changed into the kinetic energy of aircraft, aircraft is upwards jumped up, after the aircraft of jumping up peaks, again pound earthward under gravity, now, if attitude of flight vehicle changes, fail, with the direct colliding surface of air bag, will serious damage be there will be.The measure of general employing is the explosion mouth arranging emission gases on air bag, when aircraft is through buffering, descending speed is reduced to before zero, utilize and compressed the gaseous tension of rear rising, the explosion mouth of air bag is broken, the gas compression potential energy of inside air bag is discharged with the form of emission gases, rebounds to avoid air bag.Although avoid the appearance of rebound phenomena after have employed this measure, but the buffer action of the later air bag that breaks can rapidly disappear, now aircraft still has certain descending speed, add overhead still also have certain height, effect descending speed due to gravity can continue to increase, like this still likely producing certain damage to aircraft with during earth surface, the reason of general air bag can not realize ideal completely buffering that Here it is.
Summary of the invention
The object of the invention is the defect overcoming prior art, Landing Buffer device when providing a kind of unmanned vehicle parachuting to reclaim, by changing the mode of airbag structure, improving the efficiency of air bag buffering further.The present invention is the project NZ2012018 " research of new construction buffer air bag " that unmanned plane specific technique research foundation is subsidized.
The present invention is by the following technical solutions: Landing Buffer device when a kind of unmanned vehicle parachuting is reclaimed, comprise the air bag be fixed on below unmanned vehicle, air bag is provided with inflation inlet, inflation inlet is connected with the remote control inflatable appliance that aircraft is arranged, it is characterized in that: set up a balloonet on each main gasbag side, balloonet is communicated with main gasbag, connected entrance place is sealed by explosive film, aerification before main gasbag contacts to earth, when main gasbag contacts to earth, air pressure inside increases, inflated to balloonet by the connected entrance broken, form a combination pneumatophore, in main gasbag and balloonet, an air bag arranges exhausr port at least wherein, exhaust ports is also sealed by explosive film, when combination pneumatophore internal pressure increases further, exhausr port breaks, to environmental emission gas,
If connected entrance adopts same form and material with the explosive film of exhausr port, then the diameter of exhausr port should be less than connected entrance, to ensure that connected entrance breaks prior to exhausr port.
The volume of said balloonet is less than main gasbag.
Advantage of the present invention and remarkable result: the present invention, on the basis of existing single air bag buffer, adds a balloonet, effectively can improve the buffer capacity of air bag buffer.After aircraft enters parachuting process and reaches and surely fall state, by the inflatable appliance of ground remote control by main gasbag aerification, now balloonet becomes folded state.When contacting to earth, main gasbag is squeezed and produces buffer action, internal gas is pressure increase because of compression, connection explosion mouth film between main gasbag and balloonet blows brokenly to during setting value by the pressure increased, the portion gas of main gasbag flows to balloonet by the connected entrance broken, two air bags are communicated with and are merged into the larger pneumatophore of a volume, also body is subject to and ground extrudes and produces buffer action after balloonet is full of, internal gas pressure increases, and balloonet is vented explosion mouth and blows brokenly, all internal gas will be discharged in surrounding environment.Aircraft is subject to antagonistic force when compressing gasbag and is cushioned, and the aircraft kiss the earth that descending speed is very little after buffering can safe landing.When not increasing gas supply, by the mode of an increase balloonet, allowing the emission gases of main gasbag carry out filling balloonet, carrying out Promoting Layered Buffer effect thus.
Accompanying drawing explanation
Fig. 1 is the general shape schematic diagram of air bag buffer of the present invention;
Fig. 2 is the appearance schematic diagram of main gasbag of the present invention;
Fig. 3 is the appearance schematic diagram of balloonet of the present invention;
Fig. 4 is the decomposing schematic representation that the present invention is communicated with explosion mouth and discharge explosion mouth;
Fig. 5 is main gasbag of the present invention inflation schematic diagram;
Fig. 6 is balloonet inflation schematic diagram after aircraft of the present invention contacts to earth;
Fig. 7 is balloonet of the present invention discharge explosion mouth rupture process schematic diagram.
Detailed description of the invention
As shown in Figure 1, 2, 3, the profile of main gasbag 1 and balloonet 2 is horizontal cylindrical (also can be cuboid or other body).Both can adopt the textile material of seal coating to manufacture, and technology mode can be that sewing adds seal approach, also can be gummed.Main gasbag 1 there is admission port 3.Main gasbag 1 is connected with balloonet 2 by being communicated with explosion mouth 5, and connection mode can be that sewing adds seal approach, also can be gummed.After connection explosion mouth 5 breaks, main gasbag 1 will be communicated with balloonet 2, and the volume of balloonet 2 should be less than main gasbag 1.Balloonet 2 is arranged exhaust explosion mouth 4 (Fig. 1,3), for externally emission gases.Exhaust explosion mouth 4 also can be arranged on (Fig. 2) on main gasbag 1, on major and minor air bag, also all can arrange exhaust explosion mouth 4.No matter which air bag exhaust explosion mouth 4 is arranged on, and all must ensure that the explosion mouth 5 be communicated with by major and minor air bag breaks formerly, exhaust explosion mouth 4 breaks rear.If connected entrance adopts same form and material with the explosive film of exhausr port, the diameter being vented explosion mouth 4 can be taked to be less than the diameter being communicated with explosion mouth 5 and to realize.
The structure and fuction being communicated with explosion mouth 5 or exhaust explosion mouth 4 is identical, and when on explosion oral pore mouth, the difference of pressure on film both sides reaches certain value, namely film can break.The decomposing state of explosion mouth as shown in Figure 4.On aperture 4,5, cover film 7 is as sealing, and the material of film 7 can be soft engineering plastics or soft rubber.Film 7 generally adopts gummed mode to cover on aperture 4,5, also can adopt sewing mode and add glue sealing if desired.Aperture 4,5 is directly made up of air bag envelop materials, and shape is circular (strip shape also can).
As Fig. 5,6,7 illustrated embodiments, air bag buffer is arranged in the below of unmanned vehicle 9, according to requirements can arrange 1 cover or overlap air bag more, and embodiment is the scheme that the symmetrical files of 2 cover air bags are arranged.Exhaust explosion mouth 4 is arranged on balloonet 2, and main gasbag 1 does not establish explosion mouth.When aircraft 9 enters into parachute decline process, main gasbag 1 starts to inflate and is full of shaping (gas medium of inside air bag can be the gas that gas, the gas of chemical gas generator generation, the carbon dioxide of dry ice sublimation or the air pump fan provided by compression gas storage device provides), balloonet 2 one-tenth folded state (as shown in Figure 5).When aircraft 9 is close to ground, main gasbag 1 kiss the earth pressurized, air bag smaller volume, internal pressure increases.When main gasbag 1 internal pressure reaches certain value, be communicated with explosion mouth 5 and break, the portion gas in main gasbag 1 enters balloonet 2 by connecting explosion mouth 5, and makes balloonet 2 be full of shaping (as shown in Figure 6), forms a larger pneumatophore.When aircraft 9 continues decline compression bladder, when the gaseous tension of balloonet inside again increases and reaches certain value, discharge explosion mouth 4 breaks, gas in air bag is discharged in surrounding environment by discharge explosion mouth 4, the buffering effect of air bag also fades away, the very little aircraft kiss the earth of descending speed after buffering and safe landing (as shown in Figure 7).
Claims (3)
1. a Landing Buffer device when unmanned vehicle parachuting is reclaimed, comprise the air bag be fixed on below unmanned vehicle, air bag is provided with inflation inlet, inflation inlet is connected with the remote control inflatable appliance that aircraft is arranged, it is characterized in that: set up a balloonet on each main gasbag side, balloonet is communicated with main gasbag, connected entrance place is sealed by explosive film, aerification before main gasbag contacts to earth, when main gasbag contacts to earth, air pressure inside increases, inflated to balloonet by the connected entrance broken, form a combination pneumatophore, in main gasbag and balloonet, an air bag arranges exhausr port at least wherein, exhaust ports is also sealed by explosive film, when combination pneumatophore internal pressure increases further, exhausr port breaks, to environmental emission gas.
2. Landing Buffer device when unmanned vehicle parachuting according to claim 1 is reclaimed, it is characterized in that: if connected entrance adopts same form and material with the explosive film of exhausr port, then the diameter of exhausr port should be less than connected entrance, to ensure that connected entrance breaks prior to exhausr port.
3. Landing Buffer device when unmanned vehicle parachuting according to claim 1 and 2 is reclaimed, is characterized in that: the volume of balloonet is less than main gasbag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685736.7A CN104401499A (en) | 2014-11-25 | 2014-11-25 | Landing buffering device for unmanned aerial vehicle recovery by parachute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685736.7A CN104401499A (en) | 2014-11-25 | 2014-11-25 | Landing buffering device for unmanned aerial vehicle recovery by parachute |
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| CN104401499A true CN104401499A (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410685736.7A Pending CN104401499A (en) | 2014-11-25 | 2014-11-25 | Landing buffering device for unmanned aerial vehicle recovery by parachute |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017004826A1 (en) * | 2015-07-09 | 2017-01-12 | 华南农业大学 | Anti-fall and anti-drift unmanned aerial vehicle |
| CN108216659A (en) * | 2016-12-21 | 2018-06-29 | 宏光空降装备有限公司 | The buffer air bag being vented using explosion mouth |
| CN109927920A (en) * | 2019-01-30 | 2019-06-25 | 杭州牧星科技有限公司 | A kind of unmanned plane shock-absorption air bag and unmanned plane air sac damping device |
| CN110877748A (en) * | 2019-12-06 | 2020-03-13 | 湖南浩天翼航空技术有限公司 | But folding double-deck gasbag of retrieving of parachute landing unmanned aerial vehicle quick replacement |
| CN112572814A (en) * | 2020-12-31 | 2021-03-30 | 南京宏光通用航空装备技术有限公司 | Novel damping air bag system adopting inflation mode |
| CN112591092A (en) * | 2020-12-29 | 2021-04-02 | 中国人民解放军总参谋部第六十研究所 | Unmanned aerial vehicle retrieves shock attenuation gasbag device and unmanned aerial vehicle |
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| US20110226898A1 (en) * | 2005-11-09 | 2011-09-22 | Smith Michael R | Crash Attenuation System for Aircraft |
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| US20110226898A1 (en) * | 2005-11-09 | 2011-09-22 | Smith Michael R | Crash Attenuation System for Aircraft |
| CN103963986A (en) * | 2014-05-08 | 2014-08-06 | 马新攀 | Undercarriage faulty airplane safe landing gear |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017004826A1 (en) * | 2015-07-09 | 2017-01-12 | 华南农业大学 | Anti-fall and anti-drift unmanned aerial vehicle |
| US10858098B2 (en) | 2015-07-09 | 2020-12-08 | South China Agricultural University | Falling-resistant and anti-drifting unmanned aerial vehicle |
| CN108216659A (en) * | 2016-12-21 | 2018-06-29 | 宏光空降装备有限公司 | The buffer air bag being vented using explosion mouth |
| CN109927920A (en) * | 2019-01-30 | 2019-06-25 | 杭州牧星科技有限公司 | A kind of unmanned plane shock-absorption air bag and unmanned plane air sac damping device |
| CN110877748A (en) * | 2019-12-06 | 2020-03-13 | 湖南浩天翼航空技术有限公司 | But folding double-deck gasbag of retrieving of parachute landing unmanned aerial vehicle quick replacement |
| CN112591092A (en) * | 2020-12-29 | 2021-04-02 | 中国人民解放军总参谋部第六十研究所 | Unmanned aerial vehicle retrieves shock attenuation gasbag device and unmanned aerial vehicle |
| CN112572814A (en) * | 2020-12-31 | 2021-03-30 | 南京宏光通用航空装备技术有限公司 | Novel damping air bag system adopting inflation mode |
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Application publication date: 20150311 |