CN113815845B - Emergency parachute and safety airbag mixed device suitable for multi-rotor unmanned aerial vehicle - Google Patents
Emergency parachute and safety airbag mixed device suitable for multi-rotor unmanned aerial vehicle Download PDFInfo
- Publication number
- CN113815845B CN113815845B CN202110952803.7A CN202110952803A CN113815845B CN 113815845 B CN113815845 B CN 113815845B CN 202110952803 A CN202110952803 A CN 202110952803A CN 113815845 B CN113815845 B CN 113815845B
- Authority
- CN
- China
- Prior art keywords
- parachute
- air
- box
- airbag
- air bag
- 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.)
- Active
Links
- 230000009471 action Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RZVHIXYEVGDQDX-UHFFFAOYSA-N 9,10-anthraquinone Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3C(=O)C2=C1 RZVHIXYEVGDQDX-UHFFFAOYSA-N 0.000 description 1
- 101100333170 Oryza sativa subsp. japonica EHD1 gene Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/58—Arrangements or adaptations of shock-absorbers or springs
- B64C25/62—Spring shock-absorbers; Springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U70/00—Launching, take-off or landing arrangements
- B64U70/80—Vertical take-off or landing, e.g. using rockets
- B64U70/83—Vertical take-off or landing, e.g. using rockets using parachutes, balloons or the like
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Toys (AREA)
Abstract
The utility model provides an urgent parachuting and air bag mixed device suitable for many rotor unmanned aerial vehicle, includes unmanned aerial vehicle, and unmanned aerial vehicle includes fuselage, rotor arm, rotor, landing leg, bottom plate, and equidistant 4 rotor arms that are provided with all around of fuselage, rotor is installed at rotor arm top, and the fuselage bottom equidistant is provided with 4 landing legs, and the landing leg is two-to-one, and the landing leg bottom of same group sets up in same bottom plate top surface both sides, and the bottom plate both ends tilt up; an emergency parachute landing device is arranged in the center of the top surface of the machine body; the bottoms of the two bottom plates are provided with safety airbag devices; the center of the bottom surface of the machine body is provided with a height sensor, the center of the top surface of the machine body is provided with an electric box, and a controller and a storage battery are arranged in the electric box; the application has the advantages that: the emergency parachute landing device reduces the falling speed of the unmanned aerial vehicle by utilizing the principle of air resistance through a parachute; the airbag device reduces the impact of the unmanned aerial vehicle contacting the ground when falling through the first airbag and the second airbag.
Description
Technical Field
The application relates to a mixed device, in particular to an emergency parachute and safety airbag mixed device suitable for a multi-rotor unmanned aerial vehicle.
Background
According to the attention of unmanned aerial vehicle technology in recent years, unmanned aerial vehicles are likely to generate crashes under the influence of uncertainty factors, and the loss caused by the crashes is immeasurable, and even causes casualties. Because the impact force of the hard ground on the unmanned aerial vehicle body is relatively large, the components inside the unmanned aerial vehicle are easily damaged to different degrees, the maintenance cost is very high, and even the dilemma that maintenance cannot be carried out is achieved.
From the current prior art: many unmanned aerial vehicles have only designed single safety arrangement, and the protection effect to unmanned aerial vehicle is unobvious, and when falling, the damage degree is still very high.
To solve the above problems, a need exists for an emergency parachute and airbag hybrid device suitable for a multi-rotor unmanned aerial vehicle to protect the unmanned aerial vehicle from falling.
Disclosure of Invention
The application aims to overcome the defects in the prior art and provides an emergency parachute and air bag mixed device suitable for a multi-rotor unmanned aerial vehicle, which is double in guarantee and furthest reduces the damage degree of the unmanned aerial vehicle.
The purpose of the application is realized in the following way:
the utility model provides an urgent parachuting and air bag mixed device suitable for many rotor unmanned aerial vehicle, includes unmanned aerial vehicle, unmanned aerial vehicle includes fuselage, rotor arm, rotor, landing leg, bottom plate, equidistant being provided with around the fuselage 4 rotor arm, rotor arm top is installed the rotor, fuselage bottom equidistant is provided with 4 the landing leg, the landing leg is two-to-one, the landing leg bottom of same group sets up in same bottom plate top surface both sides, the bottom plate both ends perk upwards; an emergency parachute landing device is arranged in the center of the top surface of the fuselage, and pops up when the unmanned aerial vehicle stalls and falls, so that the unmanned aerial vehicle is prevented from crashing; the bottoms of the two bottom plates are respectively provided with an air bag device, when the unmanned aerial vehicle falls, the air bags pop up, so that the impact force when the unmanned aerial vehicle contacts with the ground is reduced; the utility model discloses a high-speed electric parachute landing device, including fuselage bottom surface center department, fuselage top surface center department is provided with the electric box, electric box lateral wall articulates has the electric box switch door, install controller and battery in the electric box, the controller with emergent parachute landing device the air bag device all pass through circuit connection between the high sensor, the battery with all pass through circuit connection between the emergent parachute landing device, the external power supply of battery charges, and then gives the controller emergent parachute landing device supplies power.
Further, the emergency parachute device comprises a parachute box, a parachute box cover, a parachute rope, an inflator pump, a gas distributing pipe and an inflating ring, wherein the center of the top surface of the machine body is provided with the parachute box, the parachute box is of an annular hollow structure with an opening on the top surface, the top surface of the parachute box is covered with the parachute box cover, a plurality of sliding grooves are vertically arranged on the outer side wall of the inner cavity of the parachute box at equal intervals in a covering manner through friction force, the top of each sliding groove penetrates through the top surface of the side wall of the parachute box, the top surface of each sliding groove is higher than the horizontal plane where the rotor wing is positioned, a positioning block is connected in the sliding groove in a sliding manner, a plurality of binding grooves are formed on the inner side wall of the inner cavity of the parachute box at equal intervals, the binding grooves are in one-to-one correspondence with the sliding grooves and are positioned on the same vertical plane, binding shafts are arranged in the binding grooves, the umbrella ropes are wound on the binding shafts, the other ends of the umbrella ropes are connected with the bottoms of the inner sides of the corresponding positioning blocks in the sliding grooves, the edges of the parachutes are fixedly connected with the tops of all the positioning blocks at equal intervals in sequence, the positioning blocks are positioned at the bottommost parts of the sliding grooves in normal state, the parachutes are stacked to the tops of the parachute landing boxes, and the box cover is of a circular arc structure with a raised middle part, so that enough space is reserved between the box cover and the parachute landing boxes to accommodate the parachutes; the air pump is arranged on the top surface of the electric box, the air pump is connected with the controller and the storage battery through circuits, the air pump is powered by the storage battery, an air inlet pipe is arranged at the inlet end of the air pump, the air inlet pipe extends to the outside of the parachute landing box, an air distribution pipe is arranged in the annular interior of the parachute landing box, the output end of the air pump is communicated with the air distribution pipe through a pipeline, an air inflation ring is arranged at the bottom of the inner cavity of the parachute landing box, the air inflation ring is communicated with the air distribution pipe through a pipeline, the air inflation ring is of a hollow annular structure, the air inflation ring coincides with the circle center of the parachute landing box, a plurality of air nozzles are arranged on the top surface of the air inflation ring at equal intervals, the air nozzles are communicated with the inner cavity of the air inflation ring, and the air nozzles are positioned on the inner side below the parachute. The emergency parachute landing device is characterized in that the controller controls the air pump to start, the air pump pumps air into the air distribution pipe, the air pump is input into the air distribution pipe through a pipeline, and finally the air pump is upwards ejected through the air nozzle to blow the parachute upwards, the parachute is upwards blown to open the parachute landing box cover, so that the parachute outwards pops out to be separated from the parachute landing box, the positioning block is simultaneously driven to move upwards and separate from the chute, and the parachute is completely unfolded under the action of air resistance, so that the parachute is completely opened.
Further, the number of the air nozzles is equal to that of the sliding grooves, and the air nozzles are positioned on the middle vertical surfaces of the central connecting lines of the two adjacent sliding grooves.
Further, a buffer ventilation valve is arranged on the umbrella surface of the parachute.
Further, the air bag device comprises an air bag box, an air bag box cover, a buffer column, a first air bag and a second air bag, wherein the air bag box is arranged on the bottom surface of the bottom plate, the air bag box is of a hollow structure with an opening on the bottom surface, the air bag box cover is covered on the bottom surface of the air bag box, the air bag box cover and the air bag box are covered by friction force, a plurality of buffer columns are arranged on the top surface of the air bag box, a first air bag is arranged at the bottom of the buffer column, a second air bag is arranged at the bottom of the first air bag, the first air bag is communicated with the interior of the second air bag, a pressure release valve is arranged at the bottom of the second air bag, the first air bag and the second air bag are stacked in the inner cavity of the air bag box in a normal state, an ingress pipe is arranged at the top of the first air bag, the ingress pipe extends to the top of the bottom plate, and the ingress pipe top is communicated with the air dividing pipe through a pipeline; the safety airbag device is characterized in that the working principle of the safety airbag device is synchronously started with the emergency parachute device, the controller controls the air pump to start, the air pump pumps air into the air distribution pipe, the first air bag is continuously inflated, the volume is increased, the airbag box cover is opened, the first air bag and the second air bag are ejected from the airbag box, the second air bag is communicated with the interior of the first air bag, the second air bag is inflated when the first air bag is inflated, the first air bag and the second air bag are inflated when the air pressure in the first air bag and the second air bag reaches a preset value, and redundant air is discharged from the pressure relief valve after the first air bag and the second air bag are inflated.
Further, the buffer column is made of rubber.
Furthermore, corners of the shapes of the parachuting box, the parachuting box cover, the airbag box and the airbag box cover are all in transition through round corners.
The application has the advantages that:
1. the emergency parachute landing device reduces the falling speed of the unmanned aerial vehicle by utilizing the principle of air resistance through the parachute, so that the impact between the unmanned aerial vehicle and the ground is reduced, the unmanned aerial vehicle is protected, and the damage degree of the unmanned aerial vehicle is reduced.
2. During operation of the emergency parachute landing device, on one hand, the parachute can only pop up upwards relative to the machine body under the limiting action of the positioning block, on the other hand, the binding shaft for fixing the parachute is positioned at the top of the inner ring of the parachute landing box, the parachute landing box is arranged at the center of the top surface of the machine body, and under double protection, the rotor wing is prevented from cutting off the parachute ropes, so that the parachute is invalid, and the unmanned aerial vehicle crashes.
3. The safety airbag device changes the rigid collision of the unmanned aerial vehicle and the ground into elastic contact through the first airbag and the second airbag, so that the impact of the unmanned aerial vehicle on the ground when the unmanned aerial vehicle falls is greatly reduced, and the damage degree of the unmanned aerial vehicle is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an emergency parachute and airbag hybrid device suitable for a multi-rotor unmanned aerial vehicle.
FIG. 2 is a schematic cross-sectional view of an emergency parachuting apparatus.
FIG. 3 is a schematic view of an open structure of the parachute kit cover.
Fig. 4 is a schematic diagram of the parachute landing box structure with parachute removed.
Fig. 5 is a schematic sectional structure of the airbag device.
Fig. 6 is a schematic diagram of an emergency parachute landing apparatus and an airbag apparatus.
Fig. 7 is a second schematic view of the emergency parachute kit, as used.
In the figure: 1. unmanned aerial vehicle, 2 fuselage, 3 rotor arm, 4 rotor, 5 landing leg, 6 floor, 7 emergency parachute landing gear, 8 airbag device, 9 height sensor, 10 electric box, 11 electric box switch door, 12 controller, 13 battery, 14 parachute landing box, 15 parachute landing box cover, 16 parachute, 17 parachute cord, 18 inflator pump, 19 gas distribution pipe, 20 air charging ring, 21 chute, 22 positioning block, 23 binding groove, 24 binding shaft, 25 buffer ventilation valve, 26 air inlet pipe, 27 air nozzle, 28 airbag box, 29 airbag box cover, 30 buffer column, 31 first airbag, 32 second airbag, 33 pressure relief valve, 34.
Detailed Description
In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
The embodiment of the application provides an emergency parachute and safety airbag mixed device suitable for a multi-rotor unmanned aerial vehicle.
Example 1, as shown in fig. 1-7.
The utility model provides an urgent parachuting and air bag mix device suitable for many rotor unmanned aerial vehicle, includes unmanned aerial vehicle 1, unmanned aerial vehicle 1 includes fuselage 2, rotor arm 3, rotor 4, landing leg 5, bottom plate 6, fuselage 2 equidistant 4 that is provided with all around rotor arm 3, rotor arm 3 top is installed rotor 4, fuselage 2 bottom equidistant is provided with 4 landing leg 5, landing leg 5 two liang of a set of, same group landing leg 5 bottom sets up same bottom plate 6 top surface both sides, bottom plate 6 both ends upward perk.
The center department of fuselage 2 top surface installs urgent parachute landing gear 7, when unmanned aerial vehicle stall, fall, urgent parachute landing gear 7 pops out, avoids unmanned aerial vehicle crash.
Two bottom plate 6 bottom all is provided with air bag device 8, when unmanned aerial vehicle falls, air bag device 8 pops out, reduces the impact force when unmanned aerial vehicle and ground contact.
A height sensor 9 is installed at the center of the bottom surface of the body 2, and the height sensor 9 is preferably an ultrasonic sensor. The height sensor 9 is preferably a distance measuring sensor of the company of the electric Co., ltd, model RR30.DAO0-GGPI.9VF. The sensor of the model has the advantages of effective measurement range of 60 meters, quick response time, convenient use and capability of meeting the use requirement of the application. An electric box 10 is arranged in the center of the top surface of the machine body 2, and an electric box switch door 11 is hinged to the side wall of the electric box 10, so that the maintenance is convenient. The controller 12 and the storage battery 13 are installed in the electric box 10, and the controller 12 is preferably a standard PLC of the army automation technology limited company, and the model is JS-68T-D. The controller 12 is connected with the emergency parachute device 7, the airbag device 8 and the height sensor 9 through circuits to control the emergency parachute device, the airbag device and the height sensor. The storage battery 13 is connected with the controller 12 and the emergency parachute device 7 through circuits, and an external power supply of the storage battery is used for charging so as to supply power to the controller 12 and the emergency parachute device 7, so that the emergency parachute device 7 and the safety airbag device 8 cannot be used when an unmanned aerial vehicle is prevented from being powered off.
The emergency parachute landing device 7 comprises a parachute landing box 14, a parachute landing box cover 15, a parachute 16, a parachute rope 17, an inflator pump 18, a gas distribution pipe 19 and an inflator ring 20. The utility model discloses a parachute landing box, including fuselage 2, parachute landing box 14 top surface, parachute landing box cover 15 is provided with in the center department of fuselage 2 top surface, parachute landing box cover 15 with the parachute landing box 14 is covered through frictional force between, normally the parachute landing box cover 15 is difficult for droing. A plurality of sliding grooves 21 are vertically formed in the outer side wall of the inner cavity of the parachute landing box 14 at equal intervals, the tops of the sliding grooves 21 penetrate through the top surface of the side wall of the parachute landing box 14, and the top surface of the sliding grooves 21 is higher than the horizontal surface where the rotor wing 4 is located, so that the parachute ropes 17 are prevented from being cut off by the rotor wing. The sliding groove 21 is connected with a positioning block 22 in a sliding way. A plurality of binding grooves 23 are formed in the inner side wall of the inner cavity of the parachuting box 14 at equal intervals, the binding grooves 23 correspond to the sliding grooves 21 one by one and are located on the same vertical plane, and binding shafts 24 are arranged in the binding grooves 23. The binding shaft 24 is wound with the umbrella rope 17, and the other end of the umbrella rope 17 is connected with the inner bottom of the positioning block 22 in the corresponding chute 21. The parachute edges are fixedly connected with the tops of all the positioning blocks 22 at equal intervals in sequence, so that when the parachute 16 is unfolded, the parachute 16 can only be unfolded upwards relative to the parachute landing box 14, and the parachute 16 and the parachute ropes 17 are prevented from being damaged by the rotor wings 4. Meanwhile, the positioning block 22 can ensure that the parachute 16 is unfolded in an umbrella shape, so that the overlapping of all parts of the parachute 16, particularly the edge part, is avoided, further, the unfolding failure of the parachute 16 is avoided, meanwhile, the unfolding time of the parachute 16 can be shortened, and the falling speed is reduced by utilizing air resistance in the shortest time.
Normally, the positioning block 22 is located at the bottommost part of the chute 21, and the parachute 16 is stacked on top of the parachute landing box 14. The parachute landing box cover 15 has a circular arc structure with a convex middle part, so that enough space is ensured between the parachute landing box cover 15 and the parachute landing box 14 to accommodate the parachute 16. The parachute 16 is provided with a buffer ventilation valve 25 on the canopy. On one hand, the parachute 16 is prevented from being damaged by air resistance at the moment of just unfolding, and on the other hand, the shaking of the unmanned aerial vehicle in the falling process is reduced.
The top surface of the electric box 10 is provided with an inflator 18, and the inflator 18 preferably follows a brushless fan of intelligent science and technology limited company, and the model number is 798. The inflator pump 18 is connected with the controller 12 and the storage battery 13 through circuits, and the inflator pump 18 is powered by the storage battery 13. The inlet end of the inflator 18 is provided with an air inlet pipe 26, and the air inlet pipe 26 extends to the outside of the parachute box 14, so that smooth air inlet of the inflator 18 is ensured. The annular interior of the parachute box 14 is provided with a gas distribution pipe 19, so that a plurality of devices can be supplied with gas at the same time. The output end of the inflator pump 18 is communicated with the gas distribution pipe 19 through a pipeline, an air inflation ring 20 is arranged at the bottom of the inner cavity of the parachuting box 14, and the air inflation ring 20 is communicated with the gas distribution pipe 19 through a pipeline. The inflatable ring 20 is of a hollow annular structure, the inflatable ring 20 coincides with the center of the parachute landing box 14, and a plurality of air nozzles 27 are arranged on the top surface of the inflatable ring 20 at equal intervals. The air nozzles 27 are communicated with the inner cavity of the inflatable ring 20, the air nozzles 27 are positioned on the inner side below the parachute 16, the number of the air nozzles 27 is equal to that of the sliding grooves 21, and the air nozzles 27 are positioned on the middle vertical surfaces of the central connecting lines of two adjacent sliding grooves 21, so that the air nozzles 27 are reasonable in installation quantity, the air injection range of the air nozzles is free of gaps, a closed circular ring is formed, and dead-angle-free air supply is realized. So that the parachute 16 reacts rapidly when it pops up. The amount of air is sufficient and the time to eject the parachute 16 is greatly shortened.
The working principle of the emergency parachute landing device 7 is as follows: the controller 12 controls the inflator 18 to be started, the inflator 18 pumps air into the gas distribution pipe 19, and the air is input into the gas distribution ring 20 through a pipeline and finally is ejected upwards through the air nozzle 27. The parachute 16 is instantaneously blown upwards, the air pressure in the parachute landing box 14 is increased, under the air pressure and the air injection impact of the air nozzle 27, the resultant force pushes the parachute landing box cover 15 open, so that the parachute 16 is outwards ejected to be separated from the parachute landing box 14, meanwhile, the positioning block 22 is driven to move upwards to be separated from the chute 21, and the parachute 16 is completely unfolded under the action of air resistance, so that the parachute opening is completed.
The airbag device 8 includes an airbag case 28, an airbag case cover 29, a cushion column 30, a first airbag 31, and a second airbag 32. The bottom plate 6 bottom surface is provided with the gasbag box 28, the gasbag box 28 is the hollow structure of bottom surface opening, gasbag box 28 bottom surface lid has the gasbag lid 29, gasbag lid 29 with carry out the lid through frictional force between the gasbag box 28 and close, normally the gasbag lid 29 is difficult for droing. The top surface of the air bag box 28 is provided with a plurality of buffer columns 30, and the buffer columns 30 are made of rubber materials and have good shock absorption effect. The bottom of the buffer column 30 is provided with a first air bag 31, the bottom of the first air bag 31 is provided with a second air bag 32 and two air bags, so that double buffering is realized, and the impact between the unmanned aerial vehicle and the ground is further reduced, so that the unmanned aerial vehicle is protected. The first air bag 31 is communicated with the inside of the second air bag 32, and a pressure release valve 33 is arranged at the bottom of the second air bag 32. Normally, the first air bag 31 and the second air bag 32 are stacked in the inner cavity of the air bag box 28, an ingress pipe 34 is arranged at the top of the first air bag 31, the ingress pipe 34 extends to the top of the bottom plate 6, and the top end of the ingress pipe 34 is communicated with the air distribution pipe 19 through a pipeline.
The working principle of the airbag device 8: the air bag device 8 and the emergency parachute device 7 are synchronously started, the controller 12 controls the air pump 18 to start, the air pump 18 pumps air into the air distribution pipe 19, the air pump 31 is continuously inflated when the air is input into the first air bag 31 through a pipeline, the air bag box cover 29 is pushed open due to the fact that the volume is increased, the first air bag 31 and the second air bag 32 are ejected from the air bag box 28, the second air bag 32 is communicated with the interior of the first air bag 31, the second air bag 32 is inflated when the first air bag 31 is inflated, and when the air pressure in the first air bag 31 and the air pressure in the second air bag 32 reach a preset value, the first air bag 31 and the second air bag 32 are inflated, at the moment, the bottom of the first air bag 31 stretches out from the opening at the bottom of the air bag box 28, and the second air bag 32 is positioned at the bottom of the first air bag 31. Thereafter, the excess air is discharged from the relief valve 33, so that on the one hand, the first air bag 31 and the second air bag 32 are prevented from being excessively pressurized, and the explosion is prevented from occurring at the moment of contact with the ground; on the other hand, at the moment when the unmanned aerial vehicle contacts the ground, a part of the air in the second air bag 32 is extruded by the deformation of the second air bag 32, and is discharged from the pressure release valve 33, so that the impact generated by the collision is absorbed more effectively.
The corners of the shapes of the parachute landing box 14, the parachute landing box cover 15, the air bag box 28 and the air bag box cover 29 are all transited through round corners, so that the air resistance in the unmanned aerial vehicle flight is reduced.
The application is used when in use:
when the unmanned aerial vehicle has safety faults such as stall and the like in the air, on one hand, a flight control system of the unmanned aerial vehicle can be controlled by a driver of the unmanned aerial vehicle, and the emergency parachute device and the safety airbag device are started; or when the altitude sensor detects that the unmanned aerial vehicle has safety faults such as stall, out-of-control overturn and the like, a signal is transmitted to the controller, and the controller controls the emergency parachute device and the air bag device to start.
The controller controls the air pump to start, the air pump pumps air into the air distribution pipe, the air is input into the air distribution pipe through a pipeline, and finally the air is sprayed upwards through the air nozzle. The parachute is blown upwards instantaneously, the air pressure in the parachute landing box is increased, under the air pressure and the air injection impact of the air nozzle, the resultant force pushes the parachute landing box cover open, so that the parachute is ejected outwards to be separated from the parachute landing box, the positioning block is driven to move upwards to be separated from the chute, and the parachute is completely unfolded under the action of air resistance, so that the parachute is completely unfolded.
Meanwhile, after the air pump pumps air to the air distribution pipe, a part of air is input into the first air bag through a pipeline, the first air bag is continuously inflated, the volume is increased, the air bag box cover is pushed open, the first air bag and the second air bag are ejected out of the air bag box, the second air bag is communicated with the interior of the first air bag, the second air bag is inflated while the first air bag is inflated, and when the air pressure in the first air bag and the second air bag reaches a preset value, the inflation of the first air bag and the second air bag is completed. Thereafter, excess air is vented from the pressure relief valve.
It should be noted that in this document, relational terms such as "first" and "second" and the like are 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. Moreover, 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.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims. It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (7)
1. Emergent parachuting and air bag mixed device suitable for many rotor unmanned aerial vehicle, its characterized in that: the unmanned aerial vehicle comprises a body, rotor arms, rotors, supporting legs and a bottom plate, wherein 4 rotor arms are arranged on the periphery of the body at equal intervals, the rotors are arranged at the tops of the rotor arms, 4 supporting legs are arranged at the bottoms of the body at equal intervals, the supporting legs are in groups of two, the bottoms of the supporting legs in the same group are arranged on two sides of the top surface of the bottom plate, and the two ends of the bottom plate tilt upwards;
an emergency parachute landing device is arranged in the center of the top surface of the fuselage, and pops up when the unmanned aerial vehicle stalls and falls, so that the unmanned aerial vehicle is prevented from crashing;
the bottoms of the two bottom plates are respectively provided with an air bag device, when the unmanned aerial vehicle falls, the air bag devices pop up, so that the impact force when the unmanned aerial vehicle contacts with the ground is reduced;
the emergency parachute landing device comprises a parachute landing box, a parachute landing box cover, a parachute rope, an inflator pump, a gas distribution pipe and an inflating ring, wherein the center of the top surface of the machine body is provided with the parachute landing box, the parachute landing box is of an annular hollow structure with an opening on the top surface, the top surface of the parachute landing box is covered with the parachute landing box cover through friction force, the outer side wall of the inner cavity of the parachute landing box is vertically provided with a plurality of sliding grooves at equal intervals, the top of each sliding groove penetrates through the top surface of the side wall of the corresponding parachute landing box, the top surface of each sliding groove is higher than the horizontal surface where a rotor wing is located, a positioning block is connected in a sliding manner in the sliding groove, a plurality of binding grooves are formed in the inner side wall of the inner cavity of the parachute landing box at equal intervals, the binding grooves are in one-to-one correspondence with the sliding grooves and are located on the same vertical surface, a binding shaft is arranged in the binding groove, the binding shaft is wound with the parachute rope, the other end of each parachute rope is connected with the inner side bottom of the corresponding positioning block, the top groove is connected with the corresponding positioning block, the bottom of the side of the parachute landing box cover at equal intervals, and the top cover is in a circular arc shape, and the top space is stacked in turn, and the top space is kept between the top of the positioning blocks and the full space;
the air pump is arranged on the top of the electric box, the air pump is connected with the controller and the storage battery through circuits, the air pump is powered by the storage battery and used, an air inlet pipe is arranged at the inlet end of the air pump, the air inlet pipe extends to the outside of the parachute box, an air distribution pipe is arranged in the annular part of the parachute box, the output end of the air pump is communicated with the air distribution pipe through a pipeline, an air inflation ring is arranged at the bottom of the inner cavity of the parachute box, the air inflation ring is communicated with the air distribution pipe through a pipeline, the air inflation ring is of a hollow annular structure, the air inflation ring coincides with the center of the parachute box, a plurality of air nozzles are arranged on the top surface of the air inflation ring at equal intervals and are communicated with the inner cavity of the air inflation ring, and the air nozzles are positioned on the inner side below the parachute;
the safety airbag device comprises an airbag box, an airbag box cover, buffer columns, a first airbag and a second airbag, wherein the airbag box is arranged on the bottom surface of a bottom plate, the airbag box is of a hollow structure with an opening on the bottom surface, the airbag box cover is covered on the bottom surface of the airbag box, the airbag box cover and the airbag box are covered by friction force, a plurality of buffer columns are arranged on the top surface of the airbag box, a first airbag is arranged at the bottom of the buffer columns, a second airbag is arranged at the bottom of the first airbag, the first airbag is communicated with the interior of the second airbag, a pressure release valve is arranged at the bottom of the second airbag, the first airbag and the second airbag are stacked in the inner cavity of the airbag box in a normal state, an ingress pipe is arranged at the top of the first airbag, the ingress pipe extends to the top of the bottom plate, and the top of the ingress pipe is communicated with the air distribution pipe through a pipeline;
the utility model discloses a high-speed electric parachute landing device, including fuselage bottom surface center department, fuselage top surface center department is provided with the electric box, electric box lateral wall articulates has the electric box switch door, install controller and battery in the electric box, the controller with emergent parachute landing device the air bag device all pass through circuit connection between the high sensor, the battery with all pass through circuit connection between the emergent parachute landing device, the external power supply of battery charges, and then gives the controller emergent parachute landing device supplies power.
2. The emergency parachute and airbag hybrid device suitable for a multi-rotor unmanned aerial vehicle of claim 1, wherein: the working principle of the emergency parachute landing device is that the controller controls the air pump to start, the air pump pumps air into the air distribution pipe, the air pump is input into the air distribution pipe through a pipeline and finally is ejected upwards through the air nozzle to blow up the parachute, at the moment, the air pressure in the parachute landing box is increased, under the combined force of air pressure and air injection impact of the air nozzle, the parachute box cover is propped open, so that the parachute outwards pops out to be separated from the parachute box, meanwhile, the positioning block is driven to move upwards to be separated from the sliding groove, and the parachute is completely unfolded under the action of air resistance, so that the parachute is completely unfolded.
3. The emergency parachute and airbag hybrid device suitable for a multi-rotor unmanned aerial vehicle according to claim 2, wherein: the number of the air nozzles is equal to that of the sliding grooves, and the air nozzles are positioned on the middle vertical surfaces of the central connecting lines of two adjacent sliding grooves.
4. The emergency parachute and airbag hybrid device suitable for a multi-rotor unmanned aerial vehicle according to claim 2, wherein: the parachute surface of the parachute is provided with a buffer ventilation valve.
5. An emergency parachute and airbag hybrid device for a multi-rotor unmanned aerial vehicle according to any one of claims 2-4, wherein: the air bag device is started synchronously with the emergency parachute device, the controller controls the air pump to start, the air pump pumps air into the air distribution pipe, the air pump is input into the first air bag through a pipeline, the first air bag is continuously inflated, the size is enlarged, the air bag box cover is pushed open, the first air bag and the second air bag are ejected out of the air bag box, the second air bag is communicated with the interior of the first air bag, the second air bag is inflated when the first air bag is inflated, and after the air pressure in the first air bag and the second air bag reaches a preset value, the first air bag and the second air bag are inflated, and redundant air is discharged from the pressure relief valve.
6. The emergency parachute and airbag hybrid device for a multi-rotor unmanned aerial vehicle of claim 5, wherein: the buffer column is made of rubber.
7. The emergency parachute and airbag hybrid device for a multi-rotor unmanned aerial vehicle of claim 6, wherein: the parachute landing box, the parachute landing box cover, the air bag box and the corners of the air bag box cover are all in transition through round corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952803.7A CN113815845B (en) | 2021-08-19 | 2021-08-19 | Emergency parachute and safety airbag mixed device suitable for multi-rotor unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110952803.7A CN113815845B (en) | 2021-08-19 | 2021-08-19 | Emergency parachute and safety airbag mixed device suitable for multi-rotor unmanned aerial vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113815845A CN113815845A (en) | 2021-12-21 |
| CN113815845B true CN113815845B (en) | 2023-11-03 |
Family
ID=78913270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110952803.7A Active CN113815845B (en) | 2021-08-19 | 2021-08-19 | Emergency parachute and safety airbag mixed device suitable for multi-rotor unmanned aerial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113815845B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5826827A (en) * | 1997-05-05 | 1998-10-27 | Coyaso; Richard | Air-chute safety system |
| US6682017B1 (en) * | 2000-03-31 | 2004-01-27 | Pavlos Giannakopoulos | Aircraft with a detachable passenger escape cabin and an aircraft with airbags |
| CN204701768U (en) * | 2015-04-03 | 2015-10-14 | 王剑刚 | A kind of parachute and parachute opener, rope distributor |
| CN206087332U (en) * | 2016-10-13 | 2017-04-12 | 中交遥感载荷（北京）科技有限公司 | Flight slide convenient to take off and land |
| CN107745820A (en) * | 2017-10-30 | 2018-03-02 | 四川道勤信业科技有限公司 | A kind of unmanned plane landing mechanism |
| KR101862286B1 (en) * | 2018-01-26 | 2018-05-29 | 주식회사 진글라이더 | A Powered Paraglider |
| CN108910055A (en) * | 2018-06-28 | 2018-11-30 | 芜湖新尚捷智能信息科技有限公司 | A kind of unmanned plane with high security |
| CN208325648U (en) * | 2018-06-20 | 2019-01-04 | 沈阳工程学院 | A kind of high pressure overhead power line patrol UAV is fallen Shatter-resistant device |
| CN109334979A (en) * | 2018-10-25 | 2019-02-15 | 李银聪 | A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard |
| CN111038688A (en) * | 2018-10-12 | 2020-04-21 | 邱南昌 | Aircraft with slow descending mechanism |
| JP2020097345A (en) * | 2018-12-19 | 2020-06-25 | 株式会社プラニカ | Manned drone |
| KR102149504B1 (en) * | 2019-04-10 | 2020-08-31 | (주)한국플랜트관리 | Drone Safety Control System to Reduce Drone Fall Damage |
| CN112278288A (en) * | 2020-11-05 | 2021-01-29 | 湖南浩天翼航空技术有限公司 | Parachute opening buffer mechanism of parachuting unmanned aerial vehicle and using method thereof |
| CN112505687A (en) * | 2020-11-02 | 2021-03-16 | 嘉应学院 | Unmanned aerial vehicle radar for dam deformation monitoring and monitoring method thereof |
| CN112550729A (en) * | 2021-02-23 | 2021-03-26 | 成都飞航智云科技有限公司 | Aircraft with pneumatic appearance is impaired later to prevent weighing down function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170017365A (en) * | 2015-08-06 | 2017-02-15 | 장성훈 | Air Bag of Drone or Quad Cop for safe Landing |
-
2021
- 2021-08-19 CN CN202110952803.7A patent/CN113815845B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5826827A (en) * | 1997-05-05 | 1998-10-27 | Coyaso; Richard | Air-chute safety system |
| US6682017B1 (en) * | 2000-03-31 | 2004-01-27 | Pavlos Giannakopoulos | Aircraft with a detachable passenger escape cabin and an aircraft with airbags |
| CN204701768U (en) * | 2015-04-03 | 2015-10-14 | 王剑刚 | A kind of parachute and parachute opener, rope distributor |
| CN206087332U (en) * | 2016-10-13 | 2017-04-12 | 中交遥感载荷（北京）科技有限公司 | Flight slide convenient to take off and land |
| CN107745820A (en) * | 2017-10-30 | 2018-03-02 | 四川道勤信业科技有限公司 | A kind of unmanned plane landing mechanism |
| KR101862286B1 (en) * | 2018-01-26 | 2018-05-29 | 주식회사 진글라이더 | A Powered Paraglider |
| CN208325648U (en) * | 2018-06-20 | 2019-01-04 | 沈阳工程学院 | A kind of high pressure overhead power line patrol UAV is fallen Shatter-resistant device |
| CN108910055A (en) * | 2018-06-28 | 2018-11-30 | 芜湖新尚捷智能信息科技有限公司 | A kind of unmanned plane with high security |
| CN111038688A (en) * | 2018-10-12 | 2020-04-21 | 邱南昌 | Aircraft with slow descending mechanism |
| CN109334979A (en) * | 2018-10-25 | 2019-02-15 | 李银聪 | A kind of dual-purpose condition monitoring devices in extra large land of automatic falling guard |
| JP2020097345A (en) * | 2018-12-19 | 2020-06-25 | 株式会社プラニカ | Manned drone |
| KR102149504B1 (en) * | 2019-04-10 | 2020-08-31 | (주)한국플랜트관리 | Drone Safety Control System to Reduce Drone Fall Damage |
| CN112505687A (en) * | 2020-11-02 | 2021-03-16 | 嘉应学院 | Unmanned aerial vehicle radar for dam deformation monitoring and monitoring method thereof |
| CN112278288A (en) * | 2020-11-05 | 2021-01-29 | 湖南浩天翼航空技术有限公司 | Parachute opening buffer mechanism of parachuting unmanned aerial vehicle and using method thereof |
| CN112550729A (en) * | 2021-02-23 | 2021-03-26 | 成都飞航智云科技有限公司 | Aircraft with pneumatic appearance is impaired later to prevent weighing down function |
Non-Patent Citations (2)
| Title |
|---|
| 翼伞设计及其气动性能研究;冯云明;中国硕士学位论文全文数据库;第36-62页 * |
| 降落伞及安全气囊在固定翼无人机中的应用及研究;龚小胜;蔡武惠;刘雪锋;易崇瑞;邱廷伟;;电力设备管理(第01期);第143-144页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113815845A (en) | 2021-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108715228B (en) | Unmanned aerial vehicle falling protection control system and control method | |
| CN104401487B (en) | A kind of can the logistics unmanned gyroplane of ground running | |
| WO2018032924A1 (en) | Safety guard device for unmanned aerial vehicle and safety guard method for unmanned aerial vehicle | |
| CN105947169A (en) | Solar saucer-shaped floating aircraft provided with shrinkable airbag | |
| CN205499330U (en) | Unmanned aerial vehicle with gasbag of saving oneself | |
| CN203878487U (en) | Warning board | |
| CN204822096U (en) | Unmanned aircraft | |
| CN105253306A (en) | UAV (Unmanned aerial vehicle) provided with falling guard device and falling guard method thereof | |
| CN108045590B (en) | Deceleration and shock absorption method for accidental falling of unmanned aerial vehicle | |
| CN104943872A (en) | Unmanned aircraft and protecting method thereof | |
| CN111038688B (en) | Aircraft with slow descending mechanism | |
| CN113815845B (en) | Emergency parachute and safety airbag mixed device suitable for multi-rotor unmanned aerial vehicle | |
| CN107902068A (en) | High-altitude balloon tearing system and high-altitude balloon tearing method thereof | |
| CN110979647A (en) | Air fault protection device and method suitable for multi-rotor unmanned aerial vehicle | |
| CN110758747A (en) | Unmanned aerial vehicle with multiple protection devices and control method thereof | |
| CN110641712A (en) | Many rotor crafts safety arrangement | |
| CN112124601A (en) | Unmanned aerial vehicle prevents crashing structure and prevents weighing down control system | |
| CN113264192A (en) | Unmanned aerial vehicle gasbag device | |
| CN108163219A (en) | Dirigible lets system fly away without boathouse and lets method fly away | |
| CN211568276U (en) | Buffering device for airship | |
| CN111806710A (en) | Aerial photography machine capable of detecting flight condition and having falling protection function | |
| CN113844635B (en) | High-altitude balloon task load recovery device and recovery method thereof | |
| CN210761326U (en) | A slowly fall device for unmanned aerial vehicle | |
| CN206187355U (en) | Aircraft with protection device takes place slowly to fall for air | |
| CN209870756U (en) | Unmanned aerial vehicle shock attenuation gasbag and unmanned aerial vehicle gasbag damping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |