CN113815845A - Emergency parachute landing and airbag mixed use device suitable for multi-rotor unmanned aerial vehicle - Google Patents
Emergency parachute landing and airbag mixed use device suitable for multi-rotor unmanned aerial vehicle Download PDFInfo
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- CN113815845A CN113815845A CN202110952803.7A CN202110952803A CN113815845A CN 113815845 A CN113815845 A CN 113815845A CN 202110952803 A CN202110952803 A CN 202110952803A CN 113815845 A CN113815845 A CN 113815845A
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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
- B64D17/00—Parachutes
- B64D17/80—Parachutes in association with aircraft, e.g. for braking thereof
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- B64U10/00—Type of UAV
- B64U10/10—Rotorcrafts
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- 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
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Abstract
An emergency parachuting and airbag mixed use device suitable for a multi-rotor unmanned aerial vehicle comprises the unmanned aerial vehicle, wherein the unmanned aerial vehicle comprises a body, rotor arms, rotors, support legs and a bottom plate, wherein the periphery of the body is provided with 4 rotor arms at equal intervals; an emergency parachute device is arranged in the center of the top surface of the machine body; the bottom parts of the two bottom plates are respectively provided with an air bag device; a height sensor is arranged at the center of the bottom surface of the machine body, an electric box is arranged at the center of the top surface of the machine body, and a controller and a storage battery are arranged in the electric box; the invention 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 the parachute; the safety airbag device reduces impact of the unmanned aerial vehicle contacting with the ground when falling through the first airbag and the second airbag.
Description
Technical Field
The invention relates to a hybrid device, in particular to an emergency parachuting and airbag hybrid device suitable for a multi-rotor unmanned aerial vehicle.
Background
According to the attention to the unmanned aerial vehicle technology in recent years, the unmanned aerial vehicle is often possibly crashed under the influence of uncertain factors, and the caused loss is inestimable, even casualty accidents are caused. Because the impact force of hardground to the unmanned aerial vehicle fuselage is bigger, causes the not damaged of the different degree of unmanned aerial vehicle internal component easily, and the maintenance cost is very high, reaches the dilemma that can't maintain even.
From the current state of the art: many unmanned aerial vehicles have only designed single safety arrangement, and is not obvious to unmanned aerial vehicle's protection effect, and when falling, the damage degree is still very high.
To the above problem, people need an emergency parachuting and airbag mixed-use device applicable to multi-rotor unmanned aerial vehicles to protect the unmanned aerial vehicles from falling.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an emergency parachuting and airbag mixed device suitable for a multi-rotor unmanned aerial vehicle, which has double guarantee and reduces the damage degree of the unmanned aerial vehicle to the maximum extent.
The purpose of the invention is realized as follows:
an emergency parachuting and airbag mixed use device suitable for a multi-rotor unmanned aerial vehicle comprises the unmanned aerial vehicle, wherein the unmanned aerial vehicle comprises a body, rotor arms, rotors, support legs and a bottom plate, wherein 4 rotor arms are arranged around the body at equal intervals, the rotors are arranged at the tops of the rotor arms, 4 support legs are arranged at the bottom of the body at equal intervals, every two support legs are in one group, the bottoms of the support legs in the same group are arranged on two sides of the top surface of the same bottom plate, and two ends of the bottom plate are tilted upwards; an emergency parachute device is arranged in the center of the top surface of the unmanned aerial vehicle body, and when the unmanned aerial vehicle stalls and falls, the emergency parachute device pops out to avoid the unmanned aerial vehicle from crashing; the bottom parts of the two bottom plates are respectively provided with an air bag device, when the unmanned aerial vehicle falls, the air bags pop out, and the impact force generated when the unmanned aerial vehicle contacts the ground is reduced; the utility model discloses a safety parachute landing device, including fuselage, air bag, battery, controller, emergency parachute landing device, air bag, safety airbag device, height sensor, fuselage bottom surface center department installs height sensor, fuselage top surface center department is provided with the electric box, the electric box lateral wall articulates there is the electric box switch door, install controller and battery in the electric box, the controller with emergency parachute landing device all through circuit connection between the safety airbag device the height sensor, the battery with the controller all through circuit connection between the emergency parachute landing device, the external power source of battery charges, and then gives the controller emergency 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 distribution pipe and an inflation ring, the parachute box is arranged at the center of the top surface of the machine body and is of an annular hollow structure with an open top surface, the top surface of the parachute box is covered with the parachute box cover, the parachute box cover and the parachute box are covered through friction force, a plurality of sliding grooves are vertically formed in the outer side wall of the inner cavity of the parachute box at equal intervals, the top portions of the sliding grooves penetrate 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 located, a positioning block is connected in the sliding grooves in a winding mode, a plurality of binding grooves are formed in the inner side wall of the inner cavity of the parachute box at equal intervals, the binding grooves correspond to the sliding grooves in one-to-one mode and are located on the same vertical plane, a binding shaft is arranged in the binding groove, and the parachute rope is arranged on the binding shaft, the other end of the parachute rope is connected with the bottom of the inner side of the positioning block in the corresponding sliding groove, the edge of the parachute is fixedly connected with the tops of all the positioning blocks at equal intervals in sequence, the positioning blocks are located at the bottommost part of the sliding groove in a normal state, the parachute is stacked to the top of the parachute box, the box cover is of an arc-shaped structure with a convex middle part, and sufficient space is ensured to contain the parachute between the box cover and the parachute box; the top surface of the electrical box is provided with an inflator pump, the inflator pump is connected with the controller and the storage battery through circuits, the inflator pump is powered by the storage battery for use, an inlet pipe is arranged at the inlet end of the inflator pump and extends to the outside of the parachute box, a gas distribution pipe is arranged inside the parachute box, the output end of the inflator pump is communicated with the gas distribution pipe through a pipeline, the bottom of the inner cavity of the parachute box is provided with an inflation ring, the inflation ring is communicated with the gas distribution pipe through a pipeline, the inflation ring is of a hollow annular structure, the inflation ring is superposed with the circle center of the parachute box, a plurality of air nozzles are arranged on the top surface of the inflation ring at equal intervals and are communicated with the inner cavity of the inflation ring, and the air nozzles are positioned on the inner side below the parachute; urgent parachuting device theory of operation, controller control the pump starts, the pump takes out the air and sends extremely in the branch trachea, through pipeline input in the gas ring, last through the air nozzle upwards spouts, will the parachute upwards blows, will the parachute lid is opened in top, thereby the parachute outwards pops out and breaks away from the parachute box drives simultaneously the locating piece rebound breaks away from the spout, the parachute is propped out completely under the effect of air resistance, and so far the parachute is accomplished.
Furthermore, the number of the air nozzles is equal to that of the sliding grooves, and the air nozzles are positioned on a perpendicular plane between the center connecting lines of the two adjacent sliding grooves.
Furthermore, a buffering ventilation valve is arranged on the umbrella cover of the parachute.
Further, the safety airbag device comprises an airbag box, an airbag box cover, a buffer column, a first airbag and a second airbag, the bottom surface of the bottom plate is provided with an air bag box which is of a hollow structure with an opening at the bottom surface, the bottom surface of the air bag box is covered with an air bag box cover, the air bag box cover and the air bag box are covered by friction force, the top surface of the air bag box is provided with a plurality of buffer columns, the bottom of the buffer column is provided with a first air bag, the bottom of the first air bag is provided with a second air bag, the first air bag is communicated with the inside of the second air bag, a pressure release valve is arranged at the bottom of the second air bag, and under a normal state, the first air bag and the second air bag are overlapped into the inner cavity of the air bag box, the top of the first air bag is provided with an introducing pipe, the leading-in pipe extends to the top of the bottom plate, and the top end of the leading-in pipe is communicated with the gas distribution pipe through a pipeline; the safety airbag device working principle and the emergency parachute device are started synchronously, the controller controls the inflator pump to be started, the inflator pump pumps air into the air distribution pipe, the air is input into the first airbag through a pipeline, the first airbag is continuously inflated, the size of the first airbag is enlarged, the airbag box cover is pushed open, the first airbag and the second airbag are popped out of the airbag box, the second airbag is communicated with the inside of the first airbag, the second airbag is inflated while the first airbag is inflated, the first airbag and the second airbag are inflated, when the air pressure in the first airbag and the second airbag reaches a preset value, the first airbag and the second airbag are inflated, and then redundant air is discharged from the pressure release valve.
Furthermore, the buffer column is made of rubber.
Furthermore, the corners of the parachute box, the parachute box cover, the airbag box and the airbag box cover are all transited through round corners.
The advantages of the invention are as follows:
1. the emergency parachute landing device utilizes the principle of air resistance through the parachute to reduce the falling speed of the unmanned aerial vehicle, 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. Emergent parachute device during operation, on the one hand, the parachute is under the limiting displacement of locating piece, and the fuselage upwards pops out relatively, and on the other hand, the axle of binding of fixed parachute is located the inner ring top of parachute box, and the parachute box is installed in the top surface center department of fuselage, and under the duplicate protection, avoided the rotor to cut off the parachute rope, lead to the parachute to become invalid, unmanned aerial vehicle crash.
3. The air bag device through first gasbag and second gasbag, with the rigidity collision of unmanned aerial vehicle and ground, becomes elastic contact, reduces the impact of unmanned aerial vehicle when falling with ground contact greatly, alleviates unmanned aerial vehicle's damage degree.
Drawings
Fig. 1 is a structural schematic diagram of an emergency parachuting and airbag hybrid device suitable for a multi-rotor unmanned aerial vehicle.
Fig. 2 is a schematic sectional structure view of the emergency parachute landing device.
Fig. 3 is a schematic view of an opening structure of the cover of the parachute landing box.
Fig. 4 is a schematic view of the parachute box structure with the parachute removed.
Fig. 5 is a schematic sectional view showing the structure of the airbag device.
Fig. 6 is a first schematic view of the emergency parachute device and the airbag device.
Fig. 7 is a schematic view showing the emergency parachute device and the airbag device in use.
In the figure: 1. the unmanned aerial vehicle comprises an unmanned aerial vehicle body, a fuselage, a rotor arm, a rotor, a leg, a bottom plate, a controller, a storage battery, a parachute landing device, an air bag device, a height sensor, an electric box switch door, a controller, a storage battery, a parachute landing box cover, a parachute rope, an umbrella rope, an air pump, a gas distribution pipe, an air ring, an air distribution ring, a sliding groove, a positioning block, a binding groove, a binding shaft, a buffering ventilation valve, an air inlet pipe, an air nozzle, an air bag box, an air bag cover, a buffering column, a first air bag, a second air bag, a pressure release valve and a lead-in pipe.
Detailed Description
In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The embodiment of the application provides an urgent parachuting and air bag use device altogether suitable for many rotor unmanned aerial vehicle.
Example 1, as shown in FIGS. 1-7.
The utility model provides an urgent parachuting uses device with air bag thoughtlessly 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 the rotor arm 3, install at 3 tops of rotor arm rotor 4, 2 equidistant 4 that are provided with in fuselage 2 bottom landing leg 5, two liang of a set of landing legs 5 are with group 5 bottoms of landing leg set up same 6 top surface both sides of bottom plate, the perk that makes progress in 6 both ends of bottom plate.
The center department of 2 top surfaces of fuselage installs urgent parachuting device 7, when unmanned aerial vehicle takes place the stall, falls, urgent parachuting device 7 pops out, avoids unmanned aerial vehicle crash.
Two 6 bottoms of bottom plate all are 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 contacts with ground.
A height sensor 9 is installed at the center of the bottom surface of the machine body 2, and an ultrasonic sensor is preferably selected as the height sensor 9. The height sensor 9 is preferably a distance measuring sensor of the Bay union electric company Limited, and the model is RR30.DAO0-GGPI.9VF. The sensor of the type has an effective measuring range of 60 meters, is quick in response time and convenient to use, and meets the use requirement of the invention. 2 top surface center departments of fuselage are provided with electric box 10, electric box 10 lateral wall articulates there is electric box switch door 11, easy access. The electric box 10 is internally provided with a controller 12 and a storage battery 13, and the controller 12 preferably selects a standard PLC of military and industrial automation technology and technology Limited company with the model of JS-68T-D. The controller 12 is connected with the emergency parachute device 7, the safety air bag device 8 and the height sensor 9 through circuits to control the emergency parachute device 7, the safety air bag device 8 and the height sensor 9. The battery 13 with controller 12 all through circuit connection between the emergent parachuting device 7, battery external power source charges, and then gives controller 12 emergent parachuting device 7 supplies power, when avoiding unmanned aerial vehicle electroless, emergent parachuting device 7 with airbag device 8 can't use.
The emergency parachute device 7 comprises a parachute box 14, a parachute box cover 15, a parachute 16, a parachute rope 17, an inflator pump 18, a gas distribution pipe 19 and an inflation ring 20. The umbrella landing box 14 is arranged at the center of the top surface of the machine body 2, the umbrella landing box 14 is of an annular hollow structure with an opening in the top surface, the umbrella landing box cover 15 covers the top surface of the umbrella landing box 14, the umbrella landing box cover 15 and the umbrella landing box 14 are covered through friction force, and the umbrella landing box cover 15 is not prone to falling off in a normal state. A plurality of chutes 21 are vertically formed in the outer side wall of the inner cavity of the parachute box 14 at equal intervals, the top of each chute 21 penetrates through the top surface of the side wall of the parachute box 14, and the top surface of each chute 21 is higher than the horizontal plane where the rotor 4 is located, so that the parachute ropes 17 are prevented from being cut off by the rotor. A positioning block 22 is slidably connected in the sliding groove 21. A plurality of binding grooves 23 are formed in the inner side wall of the inner cavity of the parachute landing box 14 at equal intervals, the binding grooves 23 correspond to the sliding grooves 21 one to 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 bottom of the inner side of the positioning block 22 in the corresponding sliding groove 21. The parachute edge equidistant with all the top of locating piece 22 is fixed connection in proper order, makes when parachute 16 expandes, can only be relative parachute box 14 upwards exhibits, thereby has avoided parachute 16 and umbrella rope 17 by rotor 4 destroys. Meanwhile, the positioning block 22 can also ensure that the parachute 16 is unfolded in an umbrella shape, so that the parachute 16 is prevented from being overlapped in parts, particularly in the edge part, and further the parachute 16 is prevented from being failed to be unfolded, and meanwhile, the unfolding time of the parachute 16 can be reduced, and the falling speed can be reduced by utilizing air resistance in the shortest time.
Normally, the positioning block 22 is located at the bottom of the chute 21, and the parachute 16 is stacked on the top of the parachute box 14. The parachute landing box cover 15 is of an arc-shaped structure with a convex middle part, and a sufficient space is ensured between the parachute landing box cover 15 and the parachute landing box 14 to accommodate the parachute 16. The umbrella surface of the parachute 16 is provided with a buffering ventilation valve 25. Avoid on the one hand parachute 16 is destroyed by air resistance in the twinkling of an eye when just launching, alleviates rocking of unmanned aerial vehicle in the in-process that falls on the other hand.
The top surface of the electrical box 10 is provided with an inflator pump 18, and the inflator pump 18 is preferably a brushless fan of intelligent technology limited company with the model number of 798. The inflator 18 is electrically connected with the controller 12 and the storage battery 13, and the inflator 18 is powered by the storage battery 13. An air inlet pipe 26 is arranged at the inlet end of the inflator 18, and the air inlet pipe 26 extends to the outside of the parachute landing 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 gas can be supplied to a plurality of devices at the same time. The output end of the inflator pump 18 is communicated with the gas distribution pipe 19 through a pipeline, the bottom of the inner cavity of the parachute box 14 is provided with an inflation ring 20, and the inflation ring 20 is communicated with the gas distribution pipe 19 through a pipeline. The inflation ring 20 is a hollow annular structure, the inflation 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 inflation ring 20 at equal intervals. Air nozzle 27 with the 20 inner chambers of ring intercommunication inflate, air nozzle 27 is located parachute 16 below is inboard, air nozzle 27 with spout 21 quantity equals, air nozzle 27 is in two adjacent on the perpendicular plane in spout 21 center line, make air nozzle 27 installation quantity is reasonable, and its jet-propelled scope does not have the space, has formed a closed ring, realizes no dead angle air feed. So that the parachute 16 responds quickly when it is ejected. The air quantity is sufficient, and the ejection time of the parachute 16 is greatly shortened.
The working principle of the emergency parachute device 7 is as follows: the controller 12 controls the inflator 18 to be activated, and the inflator 18 pumps air into the air distribution pipe 19, and the air is input into the inflation ring 20 through a pipeline and finally is ejected upwards through the air nozzle 27. Will in the twinkling of an eye parachute 16 upwards blows up, the increase of air pressure in parachute landing box 14, at atmospheric pressure and under the jet-propelled impact of air nozzle 27, resultant force will parachute landing lid 15 backs down, thereby parachute 16 outwards pops out and breaks away from parachute landing box 14 drives simultaneously locating piece 22 upwards removes, breaks away from spout 21, parachute 16 props up the exhibition completely under the effect of air resistance, and this parachute-opening is accomplished.
The airbag device 8 includes an airbag case 28, an airbag case cover 29, a cushion pillar 30, a first airbag 31, and a second airbag 32. The bottom surface of the bottom plate 6 is provided with an air bag box 28, the air bag box 28 is of a hollow structure with an opening at the bottom surface, the bottom surface of the air bag box 28 is covered with an air bag box cover 29, the air bag box cover 29 and the air bag box 28 are covered through friction force, and the air bag box cover 29 is not easy to fall off in a normal state. 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 buffering post 30 bottom is provided with first gasbag 31, first gasbag 31 bottom is provided with second gasbag 32, two gasbags to realize double buffering, further reduce and strike between unmanned aerial vehicle and the ground, protect unmanned aerial vehicle. The first air bag 31 is communicated with the inside of the second air bag 32, and a pressure release valve 33 is installed at the bottom of the second air bag 32. Under normal conditions, the first air bag 31 and the second air bag 32 are stacked in the inner cavity of the air bag box 28, an introducing pipe 34 is arranged at the top of the first air bag 31, the introducing pipe 34 extends to the top of the bottom plate 6, and the top end of the introducing pipe 34 is communicated with the air distribution pipe 19 through a pipeline.
The operating principle of the airbag device 8 is as follows: the safety air bag device 8 and the emergency parachute device 7 are started synchronously, the controller 12 controls the inflator 18 to be started, the inflator 18 pumps air into the air distribution pipe 19, when the gas is input into the first air bag 31 through a pipeline, the first air bag 31 is continuously inflated, the volume is increased, the air bag box cover 29 is pushed open, the first airbag 31 and the second airbag 32 are ejected from the airbag case 28, the second airbag 32 communicates with the inside of the first airbag 31, while the first airbag 31 is inflated, the second airbag 32 is also inflated, and when the air pressure in the first airbag 31 and the second airbag 32 reaches a predetermined value, the first air bag 31 and the second air bag 32 are completely inflated, the bottom of the first air bag 31 extends out of the bottom opening of the air bag box 28, and the second air bag 32 is located at the bottom of the first air bag 31. After that, the excess air is discharged from the pressure relief valve 33, on one hand, the first air bag 31 and the second air bag 32 are prevented from being burst at the moment of contact with the ground due to the overlarge air pressure; on the other hand, at the moment when the unmanned aerial vehicle contacts the ground, a part of air in the second air bag 32 is squeezed 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 can be more effectively absorbed.
The corner of parachute box 14, parachute box lid 15 gasbag box 28, 29 appearances of gasbag lid all pass through the fillet and pass through to reduce the air resistance in the unmanned aerial vehicle flight.
When the invention is used:
when the unmanned aerial vehicle has safety faults such as stalling 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 parachuting device and the airbag device are started; or when the height sensor detects that the unmanned aerial vehicle has safety faults such as stalling, out-of-control overturning and the like, the height sensor transmits a signal to the controller, and the controller controls the emergency parachuting device and the safety airbag device to be started.
The controller controls the inflation pump to start, the inflation pump pumps air into the air distribution pipe, the air is input into the inflation ring through a pipeline, and finally the air is ejected upwards through the air nozzle. Will in the twinkling of an eye the parachute upwards blows up, the increase of atmospheric pressure in the parachuting box, atmospheric pressure and under the jet-propelled impact of air nozzle, resultant force will the parachuting lid is opened in the top, thereby the parachute outwards pops out and breaks away from the parachuting box drives simultaneously the locating piece rebound breaks away from the spout, the parachute is propped the exhibition completely under the effect of air resistance, and this parachute-opening is accomplished.
Simultaneously, the pump is with the air pump send to behind the gas-distributing pipe, and a part of air is in through the pipeline input in the first gasbag, first gasbag is constantly aerifyd, and the volume grow will gasbag lid is backed up, first gasbag with the second gasbag is followed pop out in the gasbag box, the second gasbag with the inside intercommunication of first gasbag when first gasbag is aerifyd, the second gasbag is also aerifing, treats when atmospheric pressure in first gasbag with the second gasbag reaches the predetermined value, first gasbag, the second gasbag is aerifyd and is accomplished. Thereafter, excess air is vented from the pressure relief valve.
It is noted that, in this document, 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.
Other embodiments of the present 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 invention 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 invention 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 will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (7)
1. The utility model provides an urgent parachuting mixes with air bag and uses device suitable for many rotor unmanned aerial vehicle which characterized in that: the unmanned aerial vehicle comprises an unmanned aerial vehicle body, wherein the unmanned aerial vehicle body comprises a body, rotor arms, rotors, support legs and a bottom plate, the number of the rotor arms is 4, the number of the support legs is 4, the rotors are arranged at the tops of the rotor arms, the number of the support legs is 4, the number of the support legs is equal to the number of the support legs, every two support legs are in one group, the bottoms of the support legs in the same group are arranged on two sides of the top surface of the same bottom plate, and two ends of the bottom plate are tilted upwards;
an emergency parachute device is arranged in the center of the top surface of the unmanned aerial vehicle body, and when the unmanned aerial vehicle stalls and falls, the emergency parachute device pops out to avoid the unmanned aerial vehicle from crashing;
the bottom parts of the two bottom plates are respectively provided with an air bag device, when the unmanned aerial vehicle falls, the air bag devices pop out, and the impact force generated when the unmanned aerial vehicle contacts the ground is reduced;
the utility model discloses a safety parachute landing device, including fuselage, air bag, battery, controller, emergency parachute landing device, air bag, safety airbag device, height sensor, fuselage bottom surface center department installs height sensor, fuselage top surface center department is provided with the electric box, the electric box lateral wall articulates there is the electric box switch door, install controller and battery in the electric box, the controller with emergency parachute landing device all through circuit connection between the safety airbag device the height sensor, the battery with the controller all through circuit connection between the emergency parachute landing device, the external power source of battery charges, and then gives the controller emergency parachute landing device supplies power.
2. The device of claim 1, wherein the device is adapted for use with an airbag in a multi-rotor drone, and further comprises: the emergency parachute device comprises a parachute box, a parachute box cover, a parachute rope, an inflator pump, a gas distribution pipe and an inflation ring, wherein the parachute box is arranged at the center of the top surface of the machine body and is of an annular hollow structure with an open top surface, the top surface of the parachute box is covered with the parachute box cover, the parachute box cover and the parachute box are covered through friction force, a plurality of chutes are vertically formed in the outer side wall of the inner cavity of the parachute box at equal intervals, the tops of the chutes penetrate through the top surface of the side wall of the parachute box, the top surfaces of the chutes are higher than the horizontal plane where the rotor wings are located, positioning blocks are connected in the chutes in a sliding mode, a plurality of binding grooves are formed in the inner side wall of the inner cavity of the parachute box at equal intervals, the binding grooves correspond to the chutes one by one to one and are located on the same vertical plane, binding shafts are arranged in the binding grooves, and the parachute rope is arranged on the binding shafts, the other end of the parachute rope is connected with the bottom of the inner side of the positioning block in the corresponding sliding groove, the edge of the parachute is fixedly connected with the tops of all the positioning blocks at equal intervals in sequence, the positioning blocks are located at the bottommost part of the sliding groove in a normal state, the parachute is stacked to the top of the parachute box, the box cover is of an arc-shaped structure with a convex middle part, and sufficient space is ensured to contain the parachute between the box cover and the parachute box;
the top surface of the electrical box is provided with an inflator pump, the inflator pump is connected with the controller and the storage battery through circuits, the inflator pump is powered by the storage battery for use, an inlet pipe is arranged at the inlet end of the inflator pump and extends to the outside of the parachute box, a gas distribution pipe is arranged inside the parachute box, the output end of the inflator pump is communicated with the gas distribution pipe through a pipeline, the bottom of the inner cavity of the parachute box is provided with an inflation ring, the inflation ring is communicated with the gas distribution pipe through a pipeline, the inflation ring is of a hollow annular structure, the inflation ring is superposed with the circle center of the parachute box, a plurality of air nozzles are arranged on the top surface of the inflation ring at equal intervals and are communicated with the inner cavity of the inflation ring, and the air nozzles are positioned on the inner side below the parachute;
the theory of operation of urgent parachuting device, controller control the pump starts, the pump takes out the air and sends extremely in the branch trachea, through pipeline input in the inflation ring, last through air nozzle upwards spouts, will the parachute upwards blows, this moment the parachute drop box in the air pressure increase, at atmospheric pressure with under the resultant force of air nozzle jet-propelled impact, will the parachute drop lid backs down, thereby the parachute outwards pops out and breaks away from the parachute drop box, drives simultaneously the locating piece rebound breaks away from the spout, the parachute fully opens under the effect of air resistance, accomplishes so far to open the parachute.
3. An emergency parachuting and airbag hybrid device suitable for 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 perpendicular planes of the central connecting lines of the two adjacent sliding grooves.
4. An emergency parachuting and airbag hybrid device suitable for multi-rotor unmanned aerial vehicle according to claim 2, wherein: the umbrella cover of the parachute is provided with a buffering ventilation valve.
5. An emergency parachuting and airbag hybrid device for a multi-rotor drone according to any one of claims 2 to 4, wherein: the safety airbag device comprises an airbag box, an airbag box cover, a buffer column, a first airbag and a second airbag, the bottom surface of the bottom plate is provided with an air bag box which is of a hollow structure with an opening at the bottom surface, the bottom surface of the air bag box is covered with an air bag box cover, the air bag box cover and the air bag box are covered by friction force, the top surface of the air bag box is provided with a plurality of buffer columns, the bottom of the buffer column is provided with a first air bag, the bottom of the first air bag is provided with a second air bag, the first air bag is communicated with the inside of the second air bag, a pressure release valve is arranged at the bottom of the second air bag, and under a normal state, the first air bag and the second air bag are overlapped into the inner cavity of the air bag box, the top of the first air bag is provided with an introducing pipe, the leading-in pipe extends to the top of the bottom plate, and the top end of the leading-in pipe is communicated with the gas distribution pipe through a pipeline;
the working principle of the safety airbag device is that the safety airbag device and the emergency parachute device are synchronously started, the controller controls the inflator pump to be started, the inflator pump pumps air into the air distribution pipe, the air is input into the first airbag through a pipeline, the first airbag is continuously inflated, the size of the first airbag is enlarged, the airbag box cover is pushed open, the first airbag and the second airbag are popped out of the airbag box, the second airbag is communicated with the inside of the first airbag, the second airbag is inflated while the first airbag is inflated, when the air pressure of the first airbag and the air pressure of the second airbag reach a preset value, the first airbag and the second airbag are inflated, and then redundant air is discharged from the pressure release valve.
6. An emergency parachuting and airbag hybrid device suitable for multi-rotor unmanned aerial vehicle according to claim 5, wherein: the buffer column is made of rubber.
7. An emergency parachuting and airbag hybrid device suitable for multi-rotor unmanned aerial vehicle according to claim 6, wherein: the corners of the parachute box, the parachute box cover, the air bag box and the air bag box cover are all transited through fillets.
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