CN112357101A - Unmanned aerial vehicle flight buffer stop - Google Patents
Unmanned aerial vehicle flight buffer stop Download PDFInfo
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- CN112357101A CN112357101A CN202011302338.4A CN202011302338A CN112357101A CN 112357101 A CN112357101 A CN 112357101A CN 202011302338 A CN202011302338 A CN 202011302338A CN 112357101 A CN112357101 A CN 112357101A
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- 238000011084 recovery Methods 0.000 claims abstract description 71
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 57
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000009423 ventilation Methods 0.000 claims description 35
- 238000002485 combustion reaction Methods 0.000 claims description 31
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims 4
- 239000000843 powder Substances 0.000 claims 3
- 241000238631 Hexapoda Species 0.000 description 29
- 238000000034 method Methods 0.000 description 12
- 239000003721 gunpowder Substances 0.000 description 11
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000004064 recycling Methods 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 241000883990 Flabellum Species 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 239000004575 stone Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4263—Means for active heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/69—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side without movement with respect to the filter elements, e.g. fixed nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D17/00—Parachutes
- B64D17/62—Deployment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D17/00—Parachutes
- B64D17/80—Parachutes in association with aircraft, e.g. for braking thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Catching Or Destruction (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses an unmanned aerial vehicle flight anti-collision device, which comprises an air inlet channel, wherein the air inlet channel is divided into a left channel and a right channel, the left channel and the right channel are internally provided with a recovery mechanism, the tail end of the recovery mechanism is provided with a protection mechanism, the protection mechanism is internally provided with a trigger mechanism, the recovery mechanism comprises a thermoplastic flexible filter screen, the thermoplastic flexible filter screen is positioned in the air inlet channel, a fixed filter plate is arranged below the thermoplastic flexible filter screen, the surface of the thermoplastic flexible filter screen is uniformly provided with filter holes, the surface of the fixed filter plate is uniformly provided with vent holes, the positions of the filter holes and the vent holes are completely staggered, one side of the left channel and one side of the right channel are provided with recovery vent pipes, and the upper ends of the two groups of recovery vent pipes penetrate through the air inlet channel and are positioned above the, have the practicality strong and can assist the unmanned aerial vehicle screw receive the striking characteristics that the back steadily falls to the ground.
Description
Technical Field
The invention relates to the technical field of unmanned aerial vehicle flight collision avoidance, in particular to an unmanned aerial vehicle flight collision avoidance device.
Background
In recent years, agricultural unmanned helicopters are increasingly widely applied in the field of domestic agricultural plant protection operation in recent years, and the agricultural unmanned aerial vehicles have the advantages of light weight, flexible use and the like, so that the agricultural unmanned aerial vehicles are not only suitable for plain areas with wide terrain, but also suitable for operations such as pesticide spraying in various complex areas such as mountainous areas, hills and the like;
and be in the field at agricultural unmanned aerial vehicle's operational environment, consequently, there can be more insect, in the unmanned aerial vehicle course of operation, these insects will be drawn into the unmanned aerial vehicle flabellum by the air current that unmanned aerial vehicle's flabellum produced very easily on, make it lead to the fact the striking to the unmanned aerial vehicle flabellum, can lead to the fact the damage to the unmanned aerial vehicle flabellum in the past in the long term, make unmanned aerial vehicle fall even during operation, cause serious economic loss, consequently, the design practicality is strong and can assist the unmanned aerial vehicle flight buffer stop that the unmanned aerial vehicle screw received steadily to fall to the ground after.
Disclosure of Invention
The invention aims to provide an unmanned aerial vehicle flight anti-collision device to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: unmanned aerial vehicle flight buffer stop, including the inlet channel, the inlet channel divide into left passageway and right passageway, the inside of left side passageway and right passageway all is provided with retrieves the mechanism, the end of retrieving the mechanism is provided with protection machanism, protection machanism's inside is provided with trigger mechanism.
According to the technical scheme, the recovery mechanism comprises a thermoplastic flexible filter screen, the thermoplastic flexible filter screen is located inside the air inlet flow channel, a fixed filter plate is arranged below the thermoplastic flexible filter screen, filter holes are uniformly formed in the surface of the thermoplastic flexible filter screen, vent holes are uniformly formed in the surface of the fixed filter plate, and the positions of the filter holes and the positions of the vent holes are completely staggered.
According to the technical scheme, the recovery ventilation pipes are arranged on one sides of the left channel and the right channel, the upper ends of the two groups of recovery ventilation pipes penetrate through the air inlet flow channel and are positioned above the thermoplastic flexible filter screen, and the lower ends of the two groups of recovery ventilation pipes penetrate through the air inlet flow channel and are positioned below the fixed filter plate.
According to the technical scheme, the two groups of the recycling ventilation pipes are internally provided with the recycling filter screens, fine filter holes are uniformly formed in the surfaces of the recycling filter screens, the diameters of the fine filter holes are 2mm, the tail ends of the recycling ventilation pipes are provided with pressure valves, and recycling channels are arranged in the middles of the recycling ventilation pipes.
According to the technical scheme, an airflow recovery flow channel is arranged below the recovery ventilation pipe, the front end of the airflow recovery flow channel is divided into a left backflushing channel and a right backflushing channel, the left backflushing channel and the right backflushing channel are communicated with the left channel and the right channel respectively, a fixed shaft is arranged inside the airflow recovery flow channel, and a movable plate is arranged on the surface of the fixed shaft.
According to the technical scheme, the movable plate is located between the left backflushing channel and the right backflushing channel, and the surface of the fixed shaft is further provided with a pair of one-way plates.
According to the technical scheme, the protection mechanism comprises a flexible membrane, the flexible membrane is fixed to the top of the air inlet flow channel, a collection box is arranged below the flexible membrane, an exhaust fan is arranged on the top of the collection box, and the two air flow recovery flow channels are connected to the two sides of the top of the collection box respectively.
According to the technical scheme, the exhaust cavity is formed in the collecting box, the group partition plate is arranged below the exhaust cavity, the combustion chamber is arranged below the group partition plate, the thermoplastic film is arranged below the group partition plate, and the ethanol ball is arranged inside the thermoplastic film.
According to the technical scheme, the two groups of recovery flow channels are respectively connected with the lower pipeline of the combustion chamber, the trigger mechanism comprises a magnet, gunpowder is arranged below the magnet, an ignition stone is arranged below the gunpowder, a magnet is arranged inside the ignition stone, the magnet and the magnet are in a matched structure, and the ignition stone and the gunpowder are in a matched structure.
According to the technical scheme, the lower part of the magnet is provided with the triggering channel, the inside of the triggering channel is provided with the counterweight ball, the counterweight ball is fixedly connected with the magnet, and the elastic clamping pieces are uniformly arranged inside the triggering channel.
Compared with the prior art, the invention has the following beneficial effects: can assist the propeller of the unmanned aerial vehicle to stably land after being impacted, the invention,
(1) the air inlet channel is arranged above the propeller of the unmanned aerial vehicle, and is divided into a left channel and a right channel, the left channel and the right channel can simultaneously intake air and can also intake air in a single channel, so that even if one channel is blocked, the other channel can also intake air, the unmanned aerial vehicle has a continuous air inlet source, and power cannot be lost due to blockage;
(2) by arranging the thermoplastic flexible filter screen and the fixed filter plate, the thermoplastic flexible filter screen is made of flexible materials, in the flying process of the unmanned aerial vehicle, insects are sucked by airflow generated in the air inlet flow channel, then the insects fall on the thermoplastic flexible filter screen and block the filter holes, air passing through the upper part of the thermoplastic flexible filter screen after the filter holes are blocked becomes less, the suction force generated by the propeller is not changed, so when the filter holes on the thermoplastic flexible filter screen are blocked by too much amount, the suction force below the filter plate will exceed the elastic force of the thermoplastic flexible filter screen, so the thermoplastic flexible filter screen will be absorbed and attached on the fixed filter plate, because the vent holes and the filter holes on the fixed filter plate are not known to be completely staggered, the thermoplastic flexible filter screen and the fixed filter plate can ensure that the channel on one side is completely closed, so that the recovery of insects by the recovery ventilation pipe can be facilitated;
(3) through being provided with the recovery ventilation pipe, after the insect on the flexible filter screen of heat was moulded reaches a certain amount, it will laminate fixed filter plate and make the inside isolation of passageway, because the front end of retrieving the ventilation pipe is located the flexible filter screen top of heat, and its rear end is located fixed filter plate below, retrieve the inside pressure of ventilation pipe this moment and will grow, the pressure valve will be opened, consequently, the downward suction that the screw produced will inhale through retrieving the ventilation pipe front end and thermoplastic the insect on the flexible filter screen and retrieve inside the ventilation pipe, and tiny filtration pore diameter on the recovery filter screen surface of retrieving the ventilation pipe inside is less, consequently, the insect can not cause the collision injury to the unmanned aerial vehicle screw in flowing into the inlet channel from retrieving the filter screen.
(4) By arranging the airflow recovery flow channel, the one-way plate and the movable plate are arranged in the airflow recovery channel, when the channel at one side of the air inlet channel is blocked by insects, the air pressure in the channel at the side is smaller than the air pressure in the channel at the other side, so the movable plate is pushed to the channel with smaller air pressure by the airflow, a part of the airflow in the channel with larger air pressure flows to the channel with smaller air pressure, the airflow recoils the fixed filter plate and the thermoplastic flexible filter screen, the insects on the thermoplastic flexible filter screen fall off and are recovered by the recovery ventilation pipe, after the insects are recovered, the thermoplastic flexible filter screen recovers elasticity, the air flow in the left channel and the right channel is balanced, the air pressure in the left channel and the right channel is balanced, and the movable plate is positioned in the middle of the airflow recovery flow channel under the effect of the same air pressure at two sides, so the, the power of the unmanned aerial vehicle is not influenced by mutual staggering;
when the propeller of the unmanned aerial vehicle loses power after being damaged, the unmanned aerial vehicle can fall down, air can flow into the air inlet channel through the propeller of the unmanned aerial vehicle at the moment, the air flows can enter the air flow recovery channel through the left recoil channel and the right recoil channel, and the air flows can push the one-way plates away in the process, so that the air flows enter the protection mechanism through the air flow recovery channel, and the unmanned aerial vehicle is protected from falling down to cause economic loss due to the damage of the propeller;
(5) by arranging the exhaust fan and the flexible film, when the unmanned aerial vehicle falls down due to the fact that the propeller of the unmanned aerial vehicle loses power, airflow enters the protection mechanism through the propeller, the exhaust fan is driven to rotate by the airflow, the flexible film can be blown up after the exhaust fan rotates, and a parachute can be formed after the flexible film is blown up, so that the descending speed of the unmanned aerial vehicle can be reduced, and loss caused by the fact that the propeller of the unmanned aerial vehicle is impacted can be reduced;
(6) the tail end of the recovery channel is connected to the bottom of the collection box, so that recovered insects can be concentrated at the bottom of the collection box, when the insects are concentrated together, methane can be generated due to rotting, when the unmanned aerial vehicle rapidly falls, the counterweight ball inside the collection box is in a standing state due to inertia, and no one can drive the collection box to be in a descending state, at the moment, the magnet can adsorb the magnetic ball, so that gunpowder collides with flint to generate sparks, the sparks can ignite the methane and the insect corpse generated by the insect corpse, so that the air inside the flexible membrane is high-temperature air, and the buoyancy of the flexible membrane at the moment is larger than that of the flexible membrane at normal temperature due to the fact that the density of the high-temperature air is smaller than that of the normal-temperature air; when only one side propeller of the unmanned aerial vehicle is damaged, the other propellers of the unmanned aerial vehicle can still provide upward power for the unmanned aerial vehicle, so that the propeller on the damaged side can incline, the unmanned aerial vehicle cannot fall off, and the counterweight ball can be clamped between the elastic clamping pieces and cannot trigger combustion in the combustion chamber; when the unmanned aerial vehicle normally descends, the counterweight ball descends along with the descending of the unmanned aerial vehicle, and the magnetic ball is always pulled downwards, so that gunpowder cannot contact with the flint, and the unmanned aerial vehicle is safer, and therefore, combustion in the combustion chamber can be triggered only when the unmanned aerial vehicle completely loses power and quickly descends, so that the safety of the unmanned aerial vehicle can be guaranteed, and meanwhile, the maintenance cost of the unmanned aerial vehicle can be reduced;
(7) by arranging the group partition board, when the exhaust fan rotates to exhaust air, the exhaust fan can blow the air below upwards, so that the air can support the flexible membrane to play the role of a parachute, in the process, the exhaust fan can generate upward suction force to the group of partition plates below the exhaust fan, and when the trigger mechanism is not triggered, because the counterweight of the ethanol ball is arranged below the group clapboard, the group clapboard can not be pulled up by the upward suction force, when the unmanned aerial vehicle loses power and the trigger mechanism triggers, the methane in the combustion chamber is ignited, the diaphragm, under the thrust of the suction above it, and the pressure generated by the combustion in the combustion chamber below it, will be lifted, and is positioned in the exhaust cavity, and at the moment, the high-temperature gas in the combustion chamber flows into the flexible membrane through the exhaust cavity, so that the buoyancy of the flexible membrane is larger, therefore, the landing speed of the whole unmanned aerial vehicle is reduced, and the unmanned aerial vehicle can be more effectively prevented from being crashed; in the combustion chamber combustion process, its flame can burn out thermoplastic film, its inside ethanol ball will fall into the combustion chamber, assist its burning, make the flexible membrane obtain lasting high temperature air, in this process, flame also can lead to the inlet channel along with the recovery passageway, these flames that are arranged in the inlet channel can heat the flexible filter plate of heat moulding, fixed filter plate will be stopped up to the flexible filter plate of heat moulding afterwards, make fixed filter plate can not ventilate, let all gas all through the air current retrieve in the flexible membrane behind the runner, make the gas in the flexible membrane more, whole parachute is bigger, can better protect unmanned aerial vehicle.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic overall sectional view of the present invention;
FIG. 2 is a schematic view of the overall side structure of the present invention;
FIG. 3 is a first schematic view of the working condition of the intake runner of the present invention;
FIG. 4 is a second schematic view of the intake runner of the present invention in an operational state;
FIG. 5 is a third schematic view of the intake runner operating condition of the present invention;
FIG. 6 is a first schematic view of the working state inside the collecting box of the invention;
FIG. 7 is a second schematic view of the internal working state of the collection box of the present invention;
FIG. 8 is a third schematic view of the internal working condition of the collection box of the present invention;
in the figure: 1. an air inlet channel; 2. a thermoplastic flexible screen; 3. fixing the filter plate; 4. recovering the vent pipe; 5. recovering the filter screen; 6. a pressure valve; 7. a recovery channel; 8. a left recoil channel; 9. a right recoil channel; 10. an airflow recovery flow channel; 11. a fixed shaft; 12. a one-way plate; 13. a movable plate; 14. a flexible film; 15. a collection box; 16. an exhaust fan; 17. a group partition plate; 18. an exhaust chamber; 19. ethanol balls; 20. a thermoplastic film; 21. a magnet; 22. a magnet; 23. gunpowder; 24. flint; 25. triggering a channel; 26. a counterweight ball; 27. an elastic card.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions: an unmanned aerial vehicle flight anti-collision device comprises an air inlet channel 1, wherein the air inlet channel 1 is divided into a left channel and a right channel, the interiors of the left channel and the right channel are respectively provided with a recovery mechanism, the tail end of the recovery mechanism is provided with a protection mechanism, the interior of the protection mechanism is provided with a trigger mechanism, the air inlet channel is arranged above a propeller of the unmanned aerial vehicle, the air inlet channel is divided into a left channel and a right channel, the left channel and the right channel can simultaneously admit air and can also admit air in a single channel, so that even if one channel is blocked, the other channel can also admit air, the unmanned aerial vehicle can have a continuous air;
referring to fig. 1 and 3-5, the recycling mechanism includes a thermoplastic flexible filter screen 2, the thermoplastic flexible filter screen 2 is located inside the intake channel 1, a fixed filter plate 3 is disposed below the thermoplastic flexible filter screen 2, filter holes are uniformly formed in the surface of the thermoplastic flexible filter screen 2, vent holes are uniformly formed in the surface of the fixed filter plate 3, the positions of the filter holes and the positions of the vent holes are completely staggered, the thermoplastic flexible filter screen is made of flexible material, during the flight process of the unmanned aerial vehicle, insects are sucked by airflow generated in the intake channel, then the insects fall on the thermoplastic flexible filter screen and block the filter holes, after the filter holes are blocked, the air passing through the upper portion of the thermoplastic flexible filter screen will be reduced, and the suction force generated by the propeller will not be changed, therefore, when the number of the blocked filter holes on the thermoplastic flexible filter screen is too large, the suction force below the thermoplastic flexible filter screen will exceed the elastic force, therefore, the thermoplastic flexible filter screen is adsorbed and attached to the fixed filter plate, and because the vent holes and the filter holes on the fixed filter plate are unknown and completely staggered, the thermoplastic flexible filter screen and the fixed filter plate can completely seal the channel on one side, so that the recovery of insects by the recovery ventilation pipe can be facilitated;
the left channel and the right channel are respectively provided with a recovery ventilation pipe 4, the upper ends of two groups of recovery ventilation pipes 4 penetrate through an air inlet flow channel 1 and are positioned above a thermoplastic flexible filter screen 2, the lower ends of two groups of recovery ventilation pipes 4 penetrate through the air inlet flow channel 1 and are positioned below a fixed filter plate 3, the two groups of recovery ventilation pipes 4 are respectively provided with a recovery filter screen 5, the surface of the recovery filter screen 5 is uniformly provided with fine filter holes, the diameter of each fine filter hole is 2mm, the tail end of each recovery ventilation pipe 4 is also provided with a pressure valve 6, the middle of each recovery ventilation pipe 4 is provided with a recovery channel 7, when insects on the thermoplastic flexible filter screen reach a certain number, the insects on the thermoplastic flexible filter screen can be attached to the fixed filter plate to enable the interior of the channel to be isolated, because the front end of each recovery ventilation pipe is positioned above the, the pressure valve is opened, so that the downward suction force generated by the propeller sucks insects on the thermoplastic flexible filter screen into the recovery ventilation pipe through the front end of the recovery ventilation pipe, and the diameter of fine filter holes on the surface of the recovery filter screen in the recovery ventilation pipe is smaller, so that the insects cannot flow into the air inlet channel from the recovery filter screen to cause collision damage to the propeller of the unmanned aerial vehicle;
(8) an airflow recovery flow channel 10 is arranged below the recovery ventilation pipe 4, the front end of the airflow recovery flow channel 10 is divided into a left backflushing channel 8 and a right backflushing channel 9, the left backflushing channel 8 and the right backflushing channel 9 are respectively communicated with the left channel and the right channel, a fixed shaft 11 is arranged inside the airflow recovery flow channel 10, a movable plate 13 is arranged on the surface of the fixed shaft 11, the movable plate 13 is positioned between the left backflushing channel 8 and the right backflushing channel 9, a pair of one-way plates 12 are further arranged on the surface of the fixed shaft 11, the one-way plates and the movable plate are arranged inside the airflow recovery flow channel, when one side channel of the intake flow channel is blocked by insects, the air pressure inside the side channel is smaller than that in the other side channel, therefore, the movable plate is pushed to the inside of the channel with smaller, the airflow recoils the fixed filter plate and the thermoplastic flexible filter screen, so that insects on the thermoplastic flexible filter screen fall off and are recovered by the recovery ventilation pipe, after the insects are recovered, the thermoplastic flexible filter screen recovers elasticity, the air flow in the left channel and the right channel is balanced, the air pressure in the left channel and the right channel is balanced, and the movable plate is positioned in the middle of the airflow recovery flow channel under the action of the same air pressure at the two sides, so that the airflows in the left channel and the right channel are separated and are not staggered with each other, and the power of the unmanned aerial vehicle is influenced;
when the propeller of the unmanned aerial vehicle loses power after being damaged, the unmanned aerial vehicle can fall down, air can flow into the air inlet channel through the propeller of the unmanned aerial vehicle at the moment, the air flows can enter the air flow recovery channel through the left recoil channel and the right recoil channel, and the air flows can push the one-way plates away in the process, so that the air flows enter the protection mechanism through the air flow recovery channel, and the unmanned aerial vehicle is protected from falling down to cause economic loss due to the damage of the propeller;
referring to fig. 2, the protection mechanism includes a flexible film 14, the flexible film 14 is fixed on the top of the intake runner 1, a collection box 15 is arranged below the flexible film 14, an exhaust fan 16 is arranged on the top of the collection box 15, two sets of airflow recovery runners 10 are respectively connected to two sides of the top of the collection box 15, when the unmanned aerial vehicle falls down due to the loss of power of the propeller of the unmanned aerial vehicle, airflow enters the protection mechanism through the propeller, the air drives the exhaust fan to rotate, the exhaust fan can blow up the flexible film after rotating, and a parachute can be formed after the flexible film is blown up, so that the descending speed of the unmanned aerial vehicle can be reduced, and the loss caused by the impact of the propeller of the unmanned aerial vehicle can be reduced;
referring to fig. 2 and 6-8, two groups of recovery flow channels 7 are respectively connected with the lower pipe of the combustion chamber, the triggering mechanism comprises a magnet 21, gunpowder 23 is arranged below the magnet 21, a flint 24 is arranged below the gunpowder 23, a magnet 22 is arranged inside the flint 24, the magnet 22 and the magnet 21 are in a matching structure, the flint 24 and the gunpowder 23 are in a matching structure, a triggering channel 25 is arranged below the magnet 22, a counterweight ball 26 is arranged inside the triggering channel 25, the counterweight ball 26 is fixedly connected with the magnet 22, elastic clamping pieces 27 are uniformly arranged inside the triggering channel 25, the tail end of the recovery channel is connected with the bottom of the collection box, therefore, recovered insects can be concentrated at the bottom of the collection box, when the insects are concentrated together, methane can be generated due to decay, when the unmanned aerial vehicle rapidly falls down, the counterweight ball inside the collection box can be inertial, the flexible film is in a standing state, no person can drive the collecting box to be in a descending state, the magnet can adsorb the magnetic ball at the moment, so that gunpowder collides with the flint to generate sparks, the sparks can ignite methane and the insect corpses generated by the insect corpses, and the air in the flexible film is high-temperature air, and the buoyancy of the flexible film at the moment is larger than that of the flexible film at the normal temperature because the density of the high-temperature air is smaller than that of the normal-temperature air; when only one side propeller of the unmanned aerial vehicle is damaged, the other propellers of the unmanned aerial vehicle can still provide upward power for the unmanned aerial vehicle, so that the propeller on the damaged side can incline, the unmanned aerial vehicle cannot fall off, and the counterweight ball can be clamped between the elastic clamping pieces and cannot trigger combustion in the combustion chamber; when the unmanned aerial vehicle normally descends, the counterweight ball descends along with the descending of the unmanned aerial vehicle, and the magnetic ball is always pulled downwards, so that gunpowder cannot contact with the flint, and the unmanned aerial vehicle is safer, and therefore, combustion in the combustion chamber can be triggered only when the unmanned aerial vehicle completely loses power and quickly descends, so that the safety of the unmanned aerial vehicle can be guaranteed, and meanwhile, the maintenance cost of the unmanned aerial vehicle can be reduced;
referring to fig. 2 and 6-8, an exhaust cavity 18 is formed in the collection box 15, a group partition 17 is arranged below the exhaust cavity 18, a combustion chamber is arranged below the group partition 17, a thermoplastic film 20 is arranged below the group partition 17, an ethanol ball 19 is arranged inside the thermoplastic film 20, when the exhaust fan rotates to exhaust air, the exhaust fan blows air below the exhaust fan upwards to support the flexible film, so that the air plays a role of a parachute, in the process, the exhaust fan generates upward suction force on the group partition below the exhaust fan, when the trigger mechanism is not triggered, the upward suction force cannot pull up the group partition due to the counterweight of the ethanol ball arranged below the group partition, when the trigger mechanism is triggered after the unmanned aerial vehicle loses power, biogas in the combustion chamber is ignited, the partition is pushed by the suction force above the trigger mechanism and the pressure generated by combustion in the combustion chamber below the trigger mechanism, the air inlet and outlet are arranged on the outer wall of the combustion chamber, and the combustion chamber is communicated with the air inlet and outlet; in the combustion process of the combustion chamber, the flame can burn the thermoplastic film, the ethanol ball inside the thermoplastic film can fall into the combustion chamber to assist the combustion of the combustion chamber, so that the flexible film can obtain continuous high-temperature air, in the process, the flame can also flow into the air inlet channel along with the recovery channel, the flame in the air inlet channel can heat the thermoplastic flexible filter plate, then the thermoplastic flexible filter plate can block the fixed filter plate, so that the fixed filter plate can not be ventilated, all the gas enters the flexible film after passing through the air flow recovery channel, the gas in the flexible film is more, the integral parachute is larger, and the unmanned aerial vehicle can be better protected;
it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Unmanned aerial vehicle flight buffer stop, its characterized in that: including air inlet flow way (1), air inlet flow way (1) divide into left side passageway and right side passageway, the inside of left side passageway and right side passageway all is provided with retrieves the mechanism, the end of retrieving the mechanism is provided with protection mechanism, protection mechanism's inside is provided with trigger mechanism.
2. An unmanned aerial vehicle flight buffer stop according to claim 1, characterized in that: retrieve mechanism including thermoplastic flexible filter screen (2), thermoplastic flexible filter screen (2) are located the inside of inlet flow way (1), the below of thermoplastic flexible filter screen (2) is provided with fixed filter plate (3), the surface of thermoplastic flexible filter screen (2) has evenly seted up the filtration pore, the surface of fixed filter plate (3) has evenly seted up the air vent, the position of filtering the pore staggers completely with the position of air vent.
3. An unmanned aerial vehicle flight buffer stop according to claim 2, characterized in that: and one side of each of the left channel and the right channel is provided with a recovery ventilation pipe (4), the upper ends of the recovery ventilation pipes (4) penetrate through the air inlet flow channel (1) and are positioned above the thermoplastic flexible filter screen (2), and the lower ends of the recovery ventilation pipes (4) penetrate through the air inlet flow channel (1) and are positioned below the fixed filter plate (3).
4. An unmanned aerial vehicle flight buffer stop according to claim 3, characterized in that: two sets of retrieve inside of ventilation pipe (4) all is provided with retrieves filter screen (5), tiny filtration pore has evenly been seted up on the surface of retrieving filter screen (5), the diameter in tiny filtration pore is 2mm, the end of retrieving ventilation pipe (4) still is provided with pressure valve (6), the centre of retrieving ventilation pipe (4) is provided with recovery passageway (7).
5. An unmanned aerial vehicle flight buffer stop according to claim 4, characterized in that: an airflow recovery flow channel (10) is arranged below the recovery ventilation pipe (4), the front end of the airflow recovery flow channel (10) is divided into a left backflushing channel (8) and a right backflushing channel (9), the left backflushing channel (8) and the right backflushing channel (9) are communicated with the left channel and the right channel respectively, a fixed shaft (11) is arranged inside the airflow recovery flow channel (10), and a movable plate (13) is arranged on the surface of the fixed shaft (11).
6. An unmanned aerial vehicle flight buffer stop according to claim 5, characterized in that: the movable plate (13) is positioned between the left recoil channel (8) and the right recoil channel (9), and the surface of the fixed shaft (11) is also provided with a pair of one-way plates (12).
7. An unmanned aerial vehicle flight buffer stop according to claim 6, characterized in that: the protection mechanism comprises a flexible membrane (14), the flexible membrane (14) is fixed to the top of the air inlet flow channel (1), a collection box (15) is arranged below the flexible membrane (14), an exhaust fan (16) is arranged on the top of the collection box (15), and the two air flow recovery flow channels (10) are connected to the two sides of the top of the collection box (15) respectively.
8. An unmanned aerial vehicle flight buffer stop according to claim 7, characterized in that: an exhaust cavity (18) is formed in the collection box (15), a group partition plate (17) is arranged below the exhaust cavity (18), a combustion chamber is arranged below the group partition plate (17), a thermoplastic film (20) is arranged below the group partition plate (17), and an ethanol ball (19) is arranged inside the thermoplastic film (20).
9. An unmanned aerial vehicle flight buffer stop according to claim 8, characterized in that: two sets of retrieve passageway (7) are connected with the lower pipeline of combustion chamber respectively, trigger mechanism is including magnet (21), the below of magnet (21) is provided with powder (23), the below of powder (23) is provided with flint (24), the inside of flint (24) is provided with magnetite (22), magnetite (22) and magnet (21) are the cooperation structure, flint (24) and powder (23) are the cooperation structure.
10. An unmanned aerial vehicle flight buffer stop according to claim 9, characterized in that: the below of magnetite (22) is provided with trigger passageway (25), the inside of trigger passageway (25) is provided with counterweight ball (26), counterweight ball (26) and magnetite (22) fixed connection, the inside of trigger passageway (25) evenly is provided with elasticity card (27).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302338.4A CN112357101B (en) | 2020-11-19 | 2020-11-19 | Unmanned aerial vehicle flight buffer stop |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011302338.4A CN112357101B (en) | 2020-11-19 | 2020-11-19 | Unmanned aerial vehicle flight buffer stop |
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| CN112357101A true CN112357101A (en) | 2021-02-12 |
| CN112357101B CN112357101B (en) | 2023-08-25 |
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| US6565035B1 (en) * | 1999-11-11 | 2003-05-20 | The Boeing Company | Apparatus and method for forming an air curtain for use with an aircraft |
| CN105157119A (en) * | 2015-06-30 | 2015-12-16 | 深圳市沃森空调技术有限公司 | Flying air purifier |
| CN207931994U (en) * | 2018-03-12 | 2018-10-02 | 北京零创众成科技有限公司 | DCB Specimen duct |
| CN111361748A (en) * | 2020-03-28 | 2020-07-03 | 广东万虹科技有限公司 | Join in marriage net and patrol and examine unmanned aerial vehicle buffer stop |
| CN211223860U (en) * | 2019-12-04 | 2020-08-11 | 天津远洋泓基电子工程有限公司 | Special indoor safe flying device of unmanned aerial vehicle |
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2020
- 2020-11-19 CN CN202011302338.4A patent/CN112357101B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6565035B1 (en) * | 1999-11-11 | 2003-05-20 | The Boeing Company | Apparatus and method for forming an air curtain for use with an aircraft |
| CN105157119A (en) * | 2015-06-30 | 2015-12-16 | 深圳市沃森空调技术有限公司 | Flying air purifier |
| CN207931994U (en) * | 2018-03-12 | 2018-10-02 | 北京零创众成科技有限公司 | DCB Specimen duct |
| CN211223860U (en) * | 2019-12-04 | 2020-08-11 | 天津远洋泓基电子工程有限公司 | Special indoor safe flying device of unmanned aerial vehicle |
| CN111361748A (en) * | 2020-03-28 | 2020-07-03 | 广东万虹科技有限公司 | Join in marriage net and patrol and examine unmanned aerial vehicle buffer stop |
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| CN112357101B (en) | 2023-08-25 |
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