CN209795843U - Unmanned aerial vehicle landing buffering gasbag - Google Patents
Unmanned aerial vehicle landing buffering gasbag Download PDFInfo
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- CN209795843U CN209795843U CN201920372727.0U CN201920372727U CN209795843U CN 209795843 U CN209795843 U CN 209795843U CN 201920372727 U CN201920372727 U CN 201920372727U CN 209795843 U CN209795843 U CN 209795843U
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Abstract
The utility model discloses an unmanned aerial vehicle landing buffering air bag, which comprises an outer air bag and an inner air bag positioned in the outer air bag, wherein the inner air bag is of a frame structure after being inflated and expanded, and the frame structure comprises an upper frame body, a hollow connecting column and a lower frame body; the inner air bag is provided with an inner air bag charging nozzle; each corner of the upper frame body is bound with the inner wall of the outer air bag, and each corner of the lower frame body is also bound with the inner wall of the outer air bag; the outer air sac is provided with an outer air sac air inlet; the outer air sac is hermetically provided with an outer air sac vent hole. The utility model discloses an outer gasbag need not the high-pressure gas cylinder and aerifys, but props up to make outside atmosphere get into and expand and take shape by interior gasbag, therefore the high-pressure gas cylinder that aerifys on the unmanned aerial vehicle only needs to aerify internal gasbag, and has saved and adopted the high-pressure gas cylinder to aerify the process of external gasbag, can reduce the volume of taking gas and the gas cylinder volume of the gas cylinder that aerifys on the unmanned aerial vehicle, reduces organism landing quality, has increased unmanned aerial vehicle's inner space.
Description
Technical Field
The utility model belongs to the unmanned aerial vehicle field, more specifically relates to an unmanned aerial vehicle landing buffering gasbag.
background
the landing buffer system for the parachute landing of the unmanned aerial vehicle generally comprises a control device, a height measuring device, a buffer, a parachute-releasing device and the like. Wherein, the buffer can be divided into: shock-absorbing skids, compressible structures, buffering air bags, buffering rockets, foam plastic buffering bags and the like.
At present, the buffer airbag is frequently used on an unmanned aerial vehicle, the working process of the buffer airbag can be generally divided into an inflation phase and a landing buffer phase (an exhaust phase), wherein the inflation phase mainly comprises selection of an inflation mode (a high-pressure gas cylinder or a gas generator) and expansion of the airbag, and the landing buffer phase mainly comprises influence of an airbag structure, an outer airbag exhaust hole area and prepressing on buffer performance, selection of a buffer stroke and the like. At present, in order to satisfy the shock-absorbing capacity when unmanned aerial vehicle lands, generally adopt high-pressure gas cylinder to carry more gas to fill into more gas in guaranteeing the buffering gasbag, can increase the quality of whole unmanned aerial vehicle system and the volume of gas cylinder like this undoubtedly, occupy the space in the unmanned aerial vehicle built-in also comparatively many.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides an unmanned aerial vehicle landing buffering gasbag, it can reduce unmanned aerial vehicle and take tolerance and organism weight, increases the unmanned aerial vehicle inner space.
To achieve the above objects, according to one aspect of the present invention, there is provided a landing buffer airbag for an unmanned aerial vehicle, comprising an outer airbag and an inner airbag located in the outer airbag, wherein,
The inner air bag is of a frame structure after being inflated and unfolded, the frame structure comprises an upper frame body, hollow connecting columns and a lower frame body, the upper frame body is formed by four hollow columns with communicated inner cavities and distributed on four sides of a rectangle, the lower frame body is also formed by four hollow columns with communicated inner cavities and distributed on four sides of the rectangle, the number of the hollow connecting columns is multiple, the upper frame body and the lower frame body are connected through the hollow connecting columns, and the inner cavity of each hollow connecting column is respectively communicated with the inner cavity of the upper frame body and the inner cavity of the lower frame body;
The inner air bag is provided with an inner air bag charging nozzle used for being connected with the gas cylinder, and the bottom of the outer air bag is provided with an outer air bag gas inlet;
Each corner of the upper frame is bound to an inner wall of the outer bladder, and each corner of the lower frame is also bound to an inner wall of the outer bladder;
And the side wall of the outer air bag is provided with an outer air bag exhaust hole.
Preferably, the hollow connecting columns are provided in two groups and they are arranged in bilateral symmetry.
Preferably, the number of the connecting columns in each group is two.
Preferably, the inner and outer bladders are tied together by snap tabs.
Preferably, the outer airbag vent hole is provided in plurality.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
1) The utility model discloses divide into outer gasbag and interior gasbag, outer gasbag need not the high-pressure gas cylinder and aerifys, but prop up and make outside atmosphere get into and expand and take shape by the inflation of interior gasbag, therefore the high-pressure gas cylinder on the unmanned aerial vehicle only needs to aerify interior gasbag, and has saved and adopted the high-pressure gas cylinder to aerify the process of outer gasbag (the outer gasbag inhales is the gas in the outside atmosphere), compared with the traditional buffer gasbag that only has an air pocket, can reduce the volume of taking gas and the gas cylinder volume of the gas cylinder of aerifing on the unmanned aerial vehicle, reduce the organism landing quality, increased unmanned aerial vehicle's inner space;
2) The buffering air bag is compressed quickly after contacting the ground, when the pressure in the air bag is increased to a preset value, the air in the air bag can burst the outer air bag vent hole, the air in the buffering air bag is discharged from the outer air bag vent hole at a high speed, so that the kinetic energy absorbed by the buffering air bag is consumed, and the buffering air bag can be protected; in addition, because the outer gasbag has certain volume after aerifing, consequently unmanned aerial vehicle landing back buffering gasbag can hold in the palm unmanned aerial vehicle from ground take the altitude, reduces the risk that unmanned aerial vehicle bottom landed and collides with, is favorable to prolonging unmanned aerial vehicle's life.
drawings
fig. 1 is a schematic structural diagram of the present invention;
Fig. 2 is a front view of the present invention with multiple buffer airbags installed on the drone;
fig. 3 is a right side view of the utility model discloses a plurality of buffering gasbags are installed on unmanned aerial vehicle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
as shown in fig. 1 to 3, an unmanned aerial vehicle landing buffer airbag comprises an outer airbag 1 and an inner airbag 2 positioned in the outer airbag 1, wherein,
The inner air bag 2 is of a frame structure after being inflated and unfolded, and the frame structure comprises an upper frame body 21, hollow connecting columns 22 and a lower frame body 23, wherein the upper frame body 21 is formed by four hollow columns with communicated inner cavities and distributed on four sides of a rectangle, the lower frame body 23 is also formed by four hollow columns with communicated inner cavities and distributed on four sides of the rectangle, a plurality of hollow connecting columns 22 are arranged, the upper frame body 21 and the lower frame body 23 are connected through the hollow connecting columns 22, and the inner cavity of each hollow connecting column 22 is respectively communicated with the inner cavity of the upper frame body 21 and the inner cavity of the lower frame body 23;
The inner air bag 2 is provided with an inner air bag inflating nozzle used for inflating the inner part of the inner air bag 2, the inner air bag inflating nozzle is used for being connected with a gas cylinder so as to inflate the inner air bag 2, the bottom of the outer air bag 1 is provided with an outer air bag gas inlet 3, and the outer air bag gas inlet 3 is a larger gap formed in the bottom of the outer air bag 1; because the buffering air bag 100 is hung at the bottom of the unmanned aerial vehicle, the air inlet 3 of the outer air bag is arranged at the bottom 11 of the outer air bag 1, so that the air flow cannot be blocked and influenced by the unmanned aerial vehicle, and the rapid air suction is facilitated; in addition, the air pipe of the air bottle can extend into the outer air bag 1 from the opening of the air inlet 3 of the outer air bag to be connected with the inflating nozzle of the inner air bag so as to inflate the inner air bag 2.
Each corner of the upper frame body 21 is bound with the inner wall of the outer airbag 1, and each corner of the lower frame body 23 is also bound with the inner wall of the outer airbag 1, so that the inner airbag 2 inflates and then supports the outer airbag 1, negative pressure is formed in the outer airbag 1, and the outer airbag 1 is inflated through the outer airbag inlet 3 to form a set shape;
the side wall of the outer airbag 1 is provided with an outer airbag vent hole 4 for exhausting air to the outside after the outer airbag 1 touches the ground, thereby generating a buffering effect and preventing the outer airbag 1 from being burst. The outer bag vent hole 4 has a much smaller diameter than the outer bag inlet 3 to ensure that the outer bag 1 can inhale a large amount of air and release less air during air intake, so that the outer bag 1 can be inflated to form a predetermined shape.
This buffering gasbag divide into outer gasbag 1 and interior gasbag 2, outer gasbag 1 need not the high-pressure gas cylinder and aerifys, when thing umbrella system descends steadily, outer gasbag 1 struts by interior gasbag 2 aerifys, thereby can inhale outside air through the inlet port 3 of outer gasbag bottom 11, thereby can make outer gasbag 1 inflation and guarantee to take shape, in addition, buffering gasbag 100 contacts to the ground after being compressed rapidly, outer gasbag air inlet 3 of outer gasbag 1 bottom is also stopped up this moment, after outer gasbag 1 internal pressure increases to the predetermined value, the gas in the outer gasbag 1 is discharged by the high speed from outer gasbag exhaust hole 4, make the kinetic energy that buffering gasbag 100 absorbed consume, therefore, the utility model discloses can reduce the area gas volume and the volume of unmanned aerial vehicle high pressure gas cylinder, reduce landing organism quality, increase the built-in space; meanwhile, the unmanned aerial vehicle can be supported to a certain height from the ground after landing, and the risk of collision during the landing of the bottom of the unmanned aerial vehicle is reduced.
Further, the hollow connecting columns 22 are provided in two sets and are arranged in bilateral symmetry, so that the upper frame 21 and the lower frame 23 of the inner airbag 2 are kept in an arrangement that is vertically symmetrical as much as possible, which contributes to the rapid and uniform formation of the set shape of the outer airbag 1 and also contributes to the formation of negative pressure inside the outer airbag 1.
Further, the number of the connection columns in each group is two, so that the upper frame body 21 and the lower frame body 23 are supported.
Further, the inner airbag 2 is provided with a buckle tab for binding the inner airbag 2 and the outer airbag 1 together, so that the inner airbag 2 can support the outer airbag 1 to form a fixed shape when being inflated.
the utility model discloses a compound gasbag form that two gasbags of outer gasbag 1 and interior gasbag 2 combine together can be when reducing the gas filling volume, guarantees similar buffering effect with the traditional buffering gasbag that only adopts an air pocket, and factor of safety is high.
it will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. an unmanned aerial vehicle landing buffering air bag comprises an outer air bag and an inner air bag positioned in the outer air bag, wherein,
The inner air bag is of a frame structure after being inflated and unfolded, the frame structure comprises an upper frame body, hollow connecting columns and a lower frame body, the upper frame body is formed by four hollow columns with communicated inner cavities and distributed on four sides of a rectangle, the lower frame body is also formed by four hollow columns with communicated inner cavities and distributed on four sides of the rectangle, the number of the hollow connecting columns is multiple, the upper frame body and the lower frame body are connected through the hollow connecting columns, and the inner cavity of each hollow connecting column is respectively communicated with the inner cavity of the upper frame body and the inner cavity of the lower frame body;
the inner air bag is provided with an inner air bag charging nozzle used for being connected with the gas cylinder, and the bottom of the outer air bag is provided with an outer air bag gas inlet;
Each corner of the upper frame is bound to an inner wall of the outer bladder, and each corner of the lower frame is also bound to an inner wall of the outer bladder;
And the side wall of the outer air bag is provided with an outer air bag exhaust hole.
2. the unmanned aerial vehicle landing cushion airbag of claim 1, wherein the hollow connecting columns are provided in two groups and are arranged in bilateral symmetry.
3. The unmanned aerial vehicle landing cushion airbag of claim 2, wherein each of the connecting columns is two in number.
4. The landing cushion of claim 1, wherein the inner and outer airbags are fastened together by a fastener tab.
5. the landing cushion airbag of claim 1, wherein the outer airbag vent is provided in plurality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372727.0U CN209795843U (en) | 2019-03-22 | 2019-03-22 | Unmanned aerial vehicle landing buffering gasbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372727.0U CN209795843U (en) | 2019-03-22 | 2019-03-22 | Unmanned aerial vehicle landing buffering gasbag |
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| CN209795843U true CN209795843U (en) | 2019-12-17 |
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| CN201920372727.0U Active CN209795843U (en) | 2019-03-22 | 2019-03-22 | Unmanned aerial vehicle landing buffering gasbag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001978A (en) * | 2019-03-22 | 2019-07-12 | 襄阳宏伟航空器有限责任公司 | A kind of UAV Landing buffer air bag |
| CN115675932A (en) * | 2022-11-16 | 2023-02-03 | 哈尔滨工业大学 | Inflation expansion type asteroid landing adsorption mechanism and working method |
-
2019
- 2019-03-22 CN CN201920372727.0U patent/CN209795843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001978A (en) * | 2019-03-22 | 2019-07-12 | 襄阳宏伟航空器有限责任公司 | A kind of UAV Landing buffer air bag |
| CN115675932A (en) * | 2022-11-16 | 2023-02-03 | 哈尔滨工业大学 | Inflation expansion type asteroid landing adsorption mechanism and working method |
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