CN213008771U - Parachute device is prevented weighing down by unmanned aerial vehicle - Google Patents
Parachute device is prevented weighing down by unmanned aerial vehicle Download PDFInfo
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- CN213008771U CN213008771U CN202021443705.8U CN202021443705U CN213008771U CN 213008771 U CN213008771 U CN 213008771U CN 202021443705 U CN202021443705 U CN 202021443705U CN 213008771 U CN213008771 U CN 213008771U
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Abstract
The utility model discloses an unmanned aerial vehicle anti-crash parachute device, which comprises an unmanned aerial vehicle and a shell installed on the unmanned aerial vehicle body, wherein a pneumatic ejection device is arranged inside the shell, and the pneumatic ejection device comprises a high-pressure gas storage tank, a solenoid valve and an ejection cylinder which are sequentially communicated; a parachute body is arranged in the ejection barrel and connected with the ejection barrel through a parachute rope; the solenoid valve is connected with the flight control panel of unmanned aerial vehicle. The utility model discloses a parachute device structure is exquisite, small, with low costs, can adapt the unmanned aerial vehicle of different kind models, can effectively reduce unmanned aerial vehicle's load.
Description
Technical Field
The utility model belongs to the technical field of the unmanned aerial vehicle parachute, specifically an unmanned aerial vehicle prevents parachute device that crashes.
Background
The unmanned aerial vehicle on the market at present is because by the restriction of battery energy density, and the general time of endurance is within 25 minutes, and along with the change of flying height, speed and the ageing of battery performance, the decline of battery voltage is not linear. The safe cruising range estimated through the software algorithm is only used for providing reference, and the phenomenon that the aircraft is lost when the unmanned aerial vehicle executes a flight task is frequently seen. When a battery is about to be exhausted or an airplane is abnormally and quickly descended and crashed due to the fact that the airplane is out of control in extreme weather, serious consequences are often caused, the process of the out-of-control crash is not controllable, the airplane is lost if the airplane is out of control, and the life safety of people is endangered if the airplane is out of control.
The parachute is a deployable aerodynamic speed reducer which is inflated and deployed relative to the air movement by utilizing the principle of air resistance. Modern parachutes are aerial vehicles that safely descend persons or things from the air to the ground. Mainly made of flexible fabric. The unmanned aerial vehicle is an equipment for combat and training of airborne troops, lifesaving and training of aerospace personnel, training, competition and performance of parachutists, airdrop supplies and recovery of unmanned aerial vehicles. The main components of the parachute include a canopy, a guide parachute, a parachute cord, a harness system, a parachute opening component, a parachute bag and the like. It is made of parachute silk (made of silk, cotton cloth and nylon fabric), parachute rope, parachute belt, parachute line and other textile materials, partial metal parts and rubber plastic parts. The umbrella rope is a hollow or cored braided rope, and is required to be compact in structure, high in strength, soft, good in elasticity and small in non-uniform elongation. The canopy is used as a canopy reinforcement and harness system. The umbrella rope is a framework of the umbrella coat, and is required to have the properties of lightness, thinness, softness, high strength, higher elastic modulus, elongation at break smaller than that of umbrella coat fabric and the like. The umbrella belt is a thick belt with double-layer or three-layer fabrics, and is required to have high strength and breaking work. The umbrella thread is a connecting material for sewing various parts of parachute silk, belts and ropes, and has the requirements of high strength, good lubrication and uniform and stable twist.
Patent publication No. CN205044980U discloses an unmanned aerial vehicle parachute ejection system using nail gun powder, comprising: the automatic launching device comprises a self-rotating mechanism, an ejection mechanism, a nail gun powder, a cylinder, a piston and a parachute; one end of the autorotation mechanism is fixed above the propeller hub of the unmanned aerial vehicle, the other end of the autorotation mechanism is connected with the ejection mechanism, and the two ends of the autorotation mechanism can rotate freely relatively and are used for preventing the ejection mechanism from rotating along with the rotation of the propeller hub of the unmanned aerial vehicle; the ejection mechanism is fixedly connected above the self-rotation mechanism and used for impacting gunpowder of the nail gun to enable the gunpowder of the nail gun to be violently combusted; the cylinder is arranged above the ejection mechanism and used for containing compressed air; the piston part is arranged in the cylinder and used for pushing the parachute to pop up.
Present unmanned aerial vehicle parachute ejection system adopts the mode or the spring mode of opening the parachute that gunpowder blasting popped out mostly, because the impact force that gunpowder explosion produced is big, cause the in-process tear damage that the parachute popped out easily, in order to avoid the parachute damage to be strengthened the intensity thickness of the parachute umbrella body and the parachute line, this just causes whole parachute ejection device bulky weight overweight, great reduction unmanned aerial vehicle's continuation of the journey, be not convenient for use on unmanned aerial vehicle. The spring type umbrella opening mode is slow in umbrella opening speed and uncontrollable in the umbrella opening process.
Disclosure of Invention
The utility model aims at providing an unmanned aerial vehicle prevents parachute device that crashes ═ provides, has solved current unmanned aerial vehicle and will be exhausted or meeting extreme weather and leading to the unusual rapid descent of aircraft out of control to cause dangerous problem at the battery, protects unmanned aerial vehicle and personnel's life safety.
In order to achieve the above object, the utility model adopts the following technical scheme:
an unmanned aerial vehicle parachute device preventing damage comprises an unmanned aerial vehicle and a shell mounted on the body of the unmanned aerial vehicle, wherein a pneumatic ejection device is arranged inside the shell and comprises a high-pressure gas storage tank, a solenoid valve and an ejection barrel which are sequentially communicated; a parachute body is arranged in the ejection barrel and connected with the ejection barrel through a parachute rope; the solenoid valve is connected with the flight control panel of unmanned aerial vehicle.
Specifically, a partition board is arranged inside the ejection barrel and divides the ejection barrel into an upper layer and a lower layer; the middle part of the clapboard is provided with a vent hole; the parachute body is accommodated on the upper layer of the ejection cylinder.
Furthermore, an air inlet is formed in the side wall of the ejection cylinder and is positioned below the partition plate; the high-pressure air storage tank is communicated with the electromagnetic valve through a first inflation pipe; the electromagnetic valve is communicated with an air inlet hole at the lower layer of the ejection cylinder through a second inflation tube. The utility model discloses a set up a bullet shooting section of thick bamboo into upper and lower two-layer structure to set up the air vent on the baffle in the middle of, lower floor's cavity plays the effect that changes the potential energy direction that gas flows, and the accessible changes the diameter of air vent reduces high-pressure gas spun pressure in the twinkling of an eye on the baffle, thereby reduces the damage that the parachute body received at the in-process of launching away, simultaneously because high-pressure gas is from the bottom spun of the parachute body, this can make the parachute body can more even expansion at the in-process of launching.
Specifically, air vent below is equipped with the spud pile, the spud pile is used for installing the parachute rope, the parachute body passes through the parachute rope with the spud pile and is connected.
Specifically, the casing top is equipped with the lid, the lid can be dismantled with the casing and be connected, when need not to launch and open the parachute, the lid can play certain guard action to the inside pneumatic jettison device of casing.
Furthermore, the top end of the shell is provided with a buckling part, the outer diameter of the buckling part is matched with the inner diameter of the bottom of the cover body, and the cover body is directly buckled on the buckling part at the top end of the shell during installation; when the air pressure on the upper layer of the ejection cylinder reaches a certain value, the cover body is jacked open.
Specifically, the high-pressure gas storage tank is provided with an inflation inlet which is similar to a one-way inflation inlet of an automobile tire, after one-time ejection is completed, the parachute body is installed back to the upper layer of the ejection cylinder only after whether the parachute body is intact is checked, and then the high-pressure gas storage tank is inflated and pressurized through the inflation inlet to be recycled.
Compared with the prior art, the beneficial effects of the utility model are that: (1) the utility model designs the ejection cylinder into an upper and lower layer structure, arranges the parachute body on the upper layer, arranges the air inlet on the lower layer, and when in ejection, the high-pressure gas enters the parachute body on the upper layer of the ejection cylinder from the lower layer of the ejection cylinder upwards, and the parachute body can be more uniformly unfolded in the ejection process by the structure; (2) the pneumatic ejection device of the utility model can be repeatedly used, when one ejection action is finished, the recycling of the pneumatic ejection device can be realized by inflating and pressurizing the high-pressure gas storage tank, and the cost is reduced; (3) the utility model discloses a pneumatic jettison device structure is exquisite, and the volume is less, can install arbitrary unmanned aerial vehicle on, is applicable to many rotor unmanned aerial vehicle and fixed wing unmanned aerial vehicle.
Drawings
Fig. 1 is a schematic view of an installation structure of a housing on an unmanned aerial vehicle when a cover is opened according to an embodiment of the present invention;
fig. 2 is a schematic view of an installation structure of a pneumatic ejection device inside a housing according to an embodiment of the present invention;
fig. 3 is a sectional view of an installation structure of a pneumatic ejection device inside a housing according to an embodiment of the present invention;
fig. 4 is a schematic view of an installation structure of the housing on the unmanned aerial vehicle when the cover body is closed in the embodiment of the present invention;
fig. 5 is a schematic view of the overall structure of the parachute body after ejection and expansion in the embodiment of the present invention;
in the figure: 1. an unmanned aerial vehicle; 2. a housing; 3. a high pressure gas storage tank; 4. an electromagnetic valve; 5. a shooting barrel; 6. a parachute body; 7. an umbrella rope; 8. a partition plate; 9. a vent hole; 10. an air inlet; 11. a first gas-filled tube; 12. a second gas-filled tube; 13. fixing the pile; 14. a cover body; 15. a buckling part; 16. an inflation inlet.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment provides an unmanned aerial vehicle parachute device for preventing crash, which comprises an unmanned aerial vehicle 1 and a housing 2 mounted on a body of the unmanned aerial vehicle 1, wherein a pneumatic ejection device is arranged inside the housing 2, and the pneumatic ejection device comprises a high-pressure air storage tank 3, an electromagnetic valve 4 and an ejection barrel 5 which are sequentially communicated; a parachute body 6 is arranged in the ejection barrel 5, and the parachute body 6 is connected with the ejection barrel 5 through a parachute rope 7; the electromagnetic valve 4 is electrically connected with a flight control panel of the unmanned aerial vehicle 1.
Specifically, as shown in fig. 2 and 3, a partition plate 8 is arranged inside the shooting barrel 5, and the shooting barrel 5 is divided into an upper layer and a lower layer by the partition plate 8; the middle part of the clapboard 8 is provided with a vent hole 9; the parachute body 6 is accommodated on the upper layer of the ejection cylinder 5.
Further, an air inlet 10 is arranged on the side wall of the ejection cylinder 5, and the air inlet 10 is positioned below the partition plate 8; the high-pressure air storage tank 3 is communicated with the electromagnetic valve 4 through a first inflation pipe 11; the electromagnetic valve 4 is communicated with an air inlet 10 at the lower layer of the ejection cylinder 5 through a second inflation tube 12. The utility model discloses a set up a bullet shooting section of thick bamboo 5 into upper and lower two-layer structure to set up air vent 9 on baffle 8 in the middle of, lower floor's cavity plays the effect that changes the potential energy direction that gas flows, and the accessible changes air vent 9's diameter reduces high-pressure gas spun pressure in the twinkling of an eye on baffle 8, thereby reduces the damage that parachute body 6 received at the in-process of launching away, simultaneously because high-pressure gas is from parachute body 6's bottom spun, this can make parachute body 6 can more even expansion at the in-process of launching.
Specifically, a fixing pile 13 is arranged below the vent hole 9, and the fixing pile 13 is arranged in the center of the top surface of the bottom plate of the ejection barrel 5 and corresponds to the vent hole 9; the fixing pile 13 is used for installing the umbrella rope 7, and the parachute body 6 is connected with the fixing pile 13 through the umbrella rope 7.
Specifically, as shown in fig. 3 to 5, a cover 14 is disposed on the top of the housing 2, the cover 14 is detachably connected to the housing 2, and when the parachute is not required to be ejected and opened, the cover 14 can protect the pneumatic ejection device inside the housing 2 to a certain extent.
Furthermore, the top end of the shell 2 is provided with a buckling part 15, the outer diameter of the buckling part 15 is matched with the inner diameter of the bottom of the cover body 14, and the cover body 14 is directly buckled on the buckling part 15 at the top end of the shell 2 during installation; when the air pressure of the upper layer of the ejection cylinder 5 reaches a certain value, the cover body 14 is pushed open.
Specifically, the high-pressure gas storage tank 3 is provided with an inflation port 16, the inflation port 16 is similar to a one-way inflation port 16 of an automobile tire, after one-time ejection is completed, the parachute body is installed back to the upper layer of the ejection barrel 5 only by checking whether the parachute body 6 is intact, and then the high-pressure gas storage tank 3 is inflated and pressurized through the inflation port 16 for recycling.
In this embodiment, the housing 2 and the shooting barrel 5 are both cylindrical, the diameter of the housing 2 is greater than that of the shooting barrel 5, and the height of the housing 2 plus the cover 14 is greater than that of the shooting barrel 5; the parachute body 6 is hemispherical after being unfolded, and the resistance is large.
In this embodiment, the solenoid valve 4 is a normally closed two-way solenoid valve.
Preferably, in this embodiment, the ejection cylinder 5, the solenoid valve 4 and the high-pressure gas storage tank 3 are arranged on a straight line, and this design can reduce the length of the inflation tube, reduce the total on-way pressure loss of gas in the inflation tube, and reduce the size of the housing 2 and the load of the unmanned aerial vehicle 1.
The working principle of the parachute device of the embodiment is as follows: when unmanned aerial vehicle 1 is about to exhaust at the battery or when meetting extreme weather and leading to the unusual rapid descent of unmanned aerial vehicle 1, judge whether unmanned aerial vehicle 1 has been out of control through the data that sensors such as accelerometer and gyroscope on detecting unmanned aerial vehicle 1 gathered, if judge that unmanned aerial vehicle 1 is out of control, close unmanned aerial vehicle 1's screw motor through flight control, open the solenoid valve 4 of normally closed type, let the gas in the high pressure gas holder 3 pass through first gas tube 11, second gas tube 12 gets into ejection section of thick bamboo 5, when the atmospheric pressure on ejection section of thick bamboo 5 upper strata is enough big, the lid 14 on ejection section of thick bamboo 5 top is backed down, the parachute body 6 on ejection section of thick bamboo 5 upper strata is launched out and evenly expands, thereby reduce the speed that unmanned aerial vehicle 1 descends.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An unmanned aerial vehicle parachute device preventing collapse comprises an unmanned aerial vehicle and is characterized by further comprising a shell mounted on the body of the unmanned aerial vehicle, wherein a pneumatic ejection device is arranged inside the shell and comprises a high-pressure air storage tank, an electromagnetic valve and an ejection barrel which are sequentially communicated; a parachute body is arranged in the ejection barrel and connected with the ejection barrel through a parachute rope; the solenoid valve is connected with the flight control panel of unmanned aerial vehicle.
2. The parachute device for preventing the unmanned aerial vehicle from being crashed is characterized in that a partition plate is arranged inside the ejection cylinder, and the ejection cylinder is divided into an upper layer and a lower layer by the partition plate; the middle part of the clapboard is provided with a vent hole; the parachute body is accommodated on the upper layer of the ejection cylinder.
3. The unmanned aerial vehicle parachute device of claim 2, wherein an air inlet is formed in a side wall of the ejection cylinder and located below the partition plate; the high-pressure air storage tank is communicated with the electromagnetic valve through a first inflation pipe; the electromagnetic valve is communicated with an air inlet hole at the lower layer of the ejection cylinder through a second inflation tube.
4. The unmanned aerial vehicle falling damage prevention parachute device according to claim 2, wherein a fixing pile is arranged below the air vent, the fixing pile is used for installing a parachute rope, and the parachute body is connected with the fixing pile through the parachute rope.
5. The unmanned aerial vehicle falling damage prevention parachute device of claim 1, wherein a cover is arranged at the top of the housing and detachably connected with the housing.
6. The unmanned aerial vehicle parachute device of claim 5, wherein the top end of the housing is provided with a buckling portion, and the outer diameter of the buckling portion is matched with the inner diameter of the bottom of the cover body.
7. The parachute device of claim 1, wherein an inflation port is disposed on the high pressure gas tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443705.8U CN213008771U (en) | 2020-07-21 | 2020-07-21 | Parachute device is prevented weighing down by unmanned aerial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443705.8U CN213008771U (en) | 2020-07-21 | 2020-07-21 | Parachute device is prevented weighing down by unmanned aerial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213008771U true CN213008771U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021443705.8U Expired - Fee Related CN213008771U (en) | 2020-07-21 | 2020-07-21 | Parachute device is prevented weighing down by unmanned aerial vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN213008771U (en) |
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2020
- 2020-07-21 CN CN202021443705.8U patent/CN213008771U/en not_active Expired - Fee Related
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Granted publication date: 20210420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |