CN108382598B - Cooperative buffer device provided with airborne multistage air bags - Google Patents
Cooperative buffer device provided with airborne multistage air bags Download PDFInfo
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- CN108382598B CN108382598B CN201810364574.5A CN201810364574A CN108382598B CN 108382598 B CN108382598 B CN 108382598B CN 201810364574 A CN201810364574 A CN 201810364574A CN 108382598 B CN108382598 B CN 108382598B
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- air bag
- exhaust valve
- pipe column
- airbag
- exhaust
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- 230000003139 buffering effect Effects 0.000 claims abstract description 24
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 238000005422 blasting Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000013022 venting Methods 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
- B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
- B64D1/02—Dropping, ejecting, or releasing articles
- B64D1/08—Dropping, ejecting, or releasing articles the articles being load-carrying devices
- B64D1/14—Absorbing landing shocks
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a cooperative buffer device for an airborne multistage airbag, which comprises an upper airbag, an airbag pipe column and a lower airbag; the upper air bag can exhaust and release pressure to the outside through the exhaust valve of the upper air bag, and can exhaust air to the air bag pipe column through combining the exhaust valve, so that the air bag pipe column is inflated, and the primary buffering is realized; the air bag pipe column can exhaust and release pressure outwards through an air bag pipe column exhaust valve, and can exhaust downwards through a combined exhaust valve II, and the lower air bag expands to realize secondary buffering; the lower air bag can exhaust and release pressure to the outside through the lower air bag exhaust valve, so that three-level buffering is realized; the multistage buffering of the airbag collaborative buffering device can not only prevent the airborne equipment from directly contacting the ground, but also realize multistage release of the internal pressure of the airbag, prevent the airbag from blasting, and ensure the airborne equipment to safely land.
Description
Technical Field
The invention relates to the field of equipment airborne safety protection, in particular to an equipment airborne multistage airbag collaborative buffer device.
Background
The airbag buffer device has been widely applied to the technical fields of equipment airborne landing, unmanned aerial vehicle recovery, aerospace return and the like due to the characteristics of light weight, good energy absorption effect and the like, and becomes an important component of equipment safety guarantee.
In the actual landing process of the equipment airborne landing, the following problems exist in the existing airbag buffer device:
1. in the existing landing air bag buffer device of the airborne equipment, most of the landing air bag buffer devices with single air chamber are single in structure, so that the setting of the initial buffer air pressure of the air chamber is too single and has limitation, and the buffer effect is limited.
2. The existing single-air-chamber air bag buffer device is exhausted outwards through the exhaust hole, so that pressure relief is realized. However, in the landing buffer process of the airborne equipment, if the exhaust hole of the airbag buffer device is too large, the airborne equipment directly contacts the ground; if the airbag cushion vent is too small, the airbag bursts easily due to a sudden increase in the pressure inside the airbag cavity and too slow an outward venting rate, which can cause fatal damage to the air-drop equipment.
3. In order to overcome the defect that the single-air-chamber air-bag buffer device is easy to burst, a small part of the prior art adopts the technical scheme that the double-air-chamber air-bag buffer device is adopted: such as the "multi-stage air bag combined buffer device" of publication number CN1923617a, but the multi-stage air bag combined buffer device adopts a nested structure, so that the effective buffer stroke is limited; as in the patent "double-chamber airbag cushion device" with publication No. CN1923618A, although this airbag cushion device adopts an installation mode in which the top chamber and the bottom chamber of the airbag are superimposed, no other cushion device is provided between the top chamber and the bottom chamber of the airbag, which still results in limited effective cushion stroke, and the top chamber and the bottom chamber of the airbag are two separate independent chambers, which results in that the two chambers cannot cooperatively cushion the air-descending equipment, so that a good cushion effect cannot be achieved for the air-descending equipment.
Disclosure of Invention
In order to overcome the above problems, the present invention proposes an airbag cushion device that solves the above problems simultaneously.
The technical scheme adopted for solving the technical problems is as follows: an air-drop multistage airbag collaborative buffer device comprises an upper airbag, an airbag pipe column and a lower airbag; the upper air bag, the air bag pipe column and the lower air bag are installed in a superposition mode, so that the effective buffering stroke is increased, and the function of enhancing the buffering effect is realized; the top of the upper air bag is provided with a buckle device which is connected with the airborne equipment; an upper air bag cavity is formed in the upper air bag, and an upper air bag inflation valve is arranged on the surface of the upper air bag; an upper air bag exhaust valve is arranged on the surface of the upper air bag, and a joint exhaust valve I is arranged at the overlapped connection part of the surface of the upper air bag and the surface of the air bag pipe column; the first combined exhaust valve is a one-way exhaust valve, and the number of the first combined exhaust valve is identical to the number of the air bag pipe columns; the upper air bag can exhaust and release pressure to the outside through the exhaust valve of the upper air bag, and can exhaust to the air bag pipe column through the combination of the exhaust valve so as to realize the first-stage buffering function;
an air bag pipe column cavity is formed in the air bag pipe column, and an air bag pipe column inflation valve is arranged on the surface of the air bag pipe column; an air bag pipe column exhaust valve is arranged on the surface of the air bag pipe column, and a joint exhaust valve II is arranged at the overlapped connection part of the air bag pipe column surface and the lower air bag surface; the second combined exhaust valve is a one-way exhaust valve, and the number of the second combined exhaust valve is identical to the number of the air bag pipe columns; the air bag pipe column is respectively connected with the upper air bag and the lower air bag through a first joint exhaust valve and a second joint exhaust valve; the air bag pipe column can exhaust and release pressure outwards through an air bag pipe column exhaust valve, and can exhaust downwards through a combined exhaust valve, so that a second-stage buffering function is realized;
the lower airbag is internally provided with a lower airbag cavity, the surface of the lower airbag is provided with a lower airbag inflation valve, and the surface of the lower airbag is provided with a lower airbag exhaust valve; the lower air bag can exhaust and release pressure to the outside through the lower air bag exhaust valve so as to realize the third-stage buffering function.
Preferably, the upper air bag and the lower air bag are identical in size.
Preferably, the upper air bag exhaust valve is a one-way exhaust valve, and the upper air bag exhaust valve is uniformly arranged along the surface of the upper air bag.
Preferably, the airbag columns are uniformly arranged between the upper airbag and the lower airbag.
Preferably, the air bag pipe column exhaust valve is a one-way exhaust valve, and the air bag pipe column exhaust valves are uniformly arranged along the surface of the air bag pipe column.
Preferably, the lower air bag exhaust valve is a one-way exhaust valve, and the lower air bag exhaust valve is uniformly arranged along the surface of the lower air bag.
The beneficial effects of the invention are as follows:
1. aiming at the 1 st point of the background technology, the problem is solved by adopting a multistage airbag cooperative buffer device with a structure comprising an upper airbag, an airbag pipe column and a lower airbag. The upper air bag, the air bag pipe column and the lower air bag can set different initial buffer air pressures according to specific airborne landing conditions, so that multistage buffering of equipment in the airborne landing process is realized.
2. Aiming at the 2 nd point provided by the background technology, the invention adopts the following design: the upper air bag can exhaust and release pressure to the outside through the exhaust valve of the upper air bag, and can exhaust air to the air bag pipe column through combining the exhaust valve, so that the air bag pipe column is inflated, and the primary buffering is realized; the air bag pipe column can exhaust and release pressure outwards through an air bag pipe column exhaust valve, and can exhaust downwards through a combined exhaust valve II, and the lower air bag expands to realize secondary buffering; the lower air bag can exhaust and release pressure to the outside through the lower air bag exhaust valve, so that three-level buffering is realized; the multistage buffering of the airbag cooperation buffer device can not only prevent the airborne equipment from directly contacting the ground, but also realize the multistage release of the internal pressure of the airbag cooperation buffer device, prevent the airbag from blasting and ensure the airborne equipment to safely land.
3. Aiming at the 3 rd point of the background technology, the invention adopts a mode of overlapping an upper air bag, an air bag pipe column and a lower air bag for installation, but not a nested mode; the airbag pipe column is arranged between the upper airbag and the lower airbag to increase the effective buffer stroke, so that the buffer effect of the airbag device is effectively enhanced. In addition, the upper air bag, the air bag pipe column and the lower air bag are cooperatively buffered through the first exhaust valve and the second exhaust valve, so that a good buffering effect can be achieved on the air drop equipment.
Note that: the above designs are not sequential, each of which provides a distinct and significant advance over the prior art.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of an air-drop multistage airbag collaborative buffering device;
FIG. 2 is a partial cross-sectional view of the airborne multistage airbag cushion assembly of the present invention;
FIG. 3 is a front view of the airborne multistage airbag cushion assembly of the present invention;
FIG. 4 is a left side view of the airborne multistage airbag cushion assembly of the present invention;
FIG. 5 is a cross-sectional view of the air-drop multistage airbag cushion apparatus A-A of the present invention;
FIG. 6 is a cross-sectional view of a cooperative cushion B-B equipped with an airborne multistage airbag in accordance with the present invention.
In the drawings, reference numerals are as follows:
1. the upper airbag 2, the airbag column 3, the lower airbag 4, the upper airbag cavity 5, the upper airbag inflation valve 6, the upper airbag vent valve 7, the first combined vent valve 8, the airbag column cavity 9, the airbag column inflation valve 10, the airbag column vent valve 11, the second combined vent valve 12, the lower airbag cavity 13, the lower airbag inflation valve 14, the lower airbag vent valve 15, the buckle device
Detailed Description
As shown in the figure: an air-drop multistage airbag cooperative buffer device comprises an upper airbag 1, an airbag tubular column 2 and a lower airbag 3; the invention adopts the mode of overlapping an upper air bag 1, an air bag pipe column 2 and a lower air bag 3 for installation; the top of the upper air bag 1 is provided with a buckle ring device 15 which is connected with the airborne equipment; an upper air bag cavity 4 is arranged in the upper air bag 1, and an upper air bag inflation valve 5 is arranged on the surface of the upper air bag 1; ten upper air bag exhaust valves 6 are arranged on the surface of the upper air bag 1, and a joint exhaust valve I7 is arranged at the overlapped connection part of the surface of the upper air bag 1 and the surface of each air bag pipe column 2; the first combined exhaust valve 7 is a one-way exhaust valve, and the number of the first combined exhaust valve 7 is identical to that of the air bag pipe columns 2.
As shown in the figure: the number of the airbag pipe columns 2 is twelve, and the airbag pipe columns 2 are arranged between the upper airbag 1 and the lower airbag 3 to increase the effective buffer stroke; an airbag column cavity 8 is arranged in each airbag column 2, and an airbag column inflation valve 9 is arranged on the surface of each airbag column 2; four airbag column exhaust valves 10 are arranged on the surface of each airbag column 2, and a joint exhaust valve II 11 is arranged at the overlapped connection part of the surface of each airbag column 2 and the surface of the lower airbag 3; the second combined exhaust valve 11 is a one-way exhaust valve, and the number of the second combined exhaust valve 11 is identical to that of the air bag pipe columns 2.
As shown in the figure: the lower airbag 3 is internally provided with a lower airbag cavity 12, the surface of the lower airbag 3 is provided with a lower airbag inflation valve 13, and the surface of the lower airbag 3 is provided with ten lower airbag exhaust valves 14.
As shown in the figure: the upper air bag 1 and the lower air bag 3 are consistent in size; the upper air bag exhaust valve 6 is a one-way exhaust valve, and the upper air bag exhaust valve 6 is uniformly arranged along the surface of the upper air bag 1; the airbag tubular column 2 is uniformly arranged between the upper airbag 1 and the lower airbag 3; the air bag pipe column exhaust valve 10 is a one-way exhaust valve, and the air bag pipe column exhaust valves 10 are uniformly arranged along the surface of the air bag pipe column 2; the lower air bag exhaust valve 14 is a one-way exhaust valve, and the lower air bag exhaust valve 14 is uniformly arranged along the surface of the lower air bag 3.
The multistage buffering of the airbag collaborative buffering device can not only prevent the airborne equipment from directly contacting the ground, but also realize multistage release of the internal pressure of the airbag, prevent the airbag from blasting, and ensure the airborne equipment to safely land.
The foregoing detailed description is directed to embodiments of the invention which are not intended to limit the scope of the invention, but rather to cover all modifications and variations within the scope of the invention.
Claims (6)
1. The utility model provides a equip multistage gasbag collaborative buffer of air drop, includes gasbag (1), gasbag tubular column (2) and lower gasbag (3), its characterized in that: the upper air bag (1), the air bag pipe column (2) and the lower air bag (3) are installed in a superposition mode, so that the effective buffering stroke is increased, and the function of enhancing the buffering effect is realized; the top of the upper air bag (1) is provided with a buckle device (15) which is connected with the airborne equipment, an upper air bag cavity (4) is arranged in the upper air bag (1), and an upper air bag inflation valve (5) is arranged on the surface of the upper air bag (1); an upper air bag exhaust valve (6) is arranged on the surface of the upper air bag (1), and a joint exhaust valve I (7) is arranged at the overlapped connection part of the surface of the upper air bag (1) and the surface of the air bag pipe column (2); the first combined exhaust valve (7) is a one-way exhaust valve, and the number of the first combined exhaust valve (7) is consistent with that of the air bag pipe columns (2); the upper air bag (1) can exhaust and release pressure to the outside through an upper air bag exhaust valve (6) and can exhaust to the air bag pipe column (2) through a combined exhaust valve I (7), so that a first-stage buffering function is realized;
an air bag pipe column cavity (8) is formed in the air bag pipe column (2), and an air bag pipe column inflation valve (9) is arranged on the surface of the air bag pipe column (2); an air bag pipe column exhaust valve (10) is arranged on the surface of the air bag pipe column (2), and a joint exhaust valve II (11) is arranged at the overlapped connection part of the surface of the air bag pipe column (2) and the surface of the lower air bag (3); the second combined exhaust valve (11) is a one-way exhaust valve, and the number of the second combined exhaust valve (11) is consistent with the number of the air bag pipe columns (2); the air bag pipe column (2) is respectively connected with the upper air bag (1) and the lower air bag (3) through a first joint exhaust valve (7) and a second joint exhaust valve (11); the air bag pipe column (2) can exhaust and release pressure outwards through an air bag pipe column exhaust valve (10), and can exhaust downwards to the air bag (3) through a combined exhaust valve II (11), so that a second-stage buffering function is realized;
the inside of the lower air bag (3) is provided with a lower air bag cavity (12), the surface of the lower air bag (3) is provided with a lower air bag inflation valve (13), and the surface of the lower air bag (3) is provided with a lower air bag exhaust valve (14); the lower air bag (3) can discharge air and pressure to the outside through the lower air bag exhaust valve (14) so as to realize a third-stage buffering function.
2. The airborne multistage airbag cushion assembly of claim 1, wherein: the upper air bag (1) and the lower air bag (3) are consistent in size.
3. The airborne multistage airbag cushion assembly of claim 1, wherein: the upper air bag exhaust valve (6) is a one-way exhaust valve, and the upper air bag exhaust valve (6) is uniformly arranged along the surface of the upper air bag (1).
4. The airborne multistage airbag cushion assembly of claim 1, wherein: the airbag tubular column (2) is uniformly arranged between the upper airbag (1) and the lower airbag (3).
5. The airborne multistage airbag cushion assembly of claim 1, wherein: the air bag pipe column exhaust valve (10) is a one-way exhaust valve, and the air bag pipe column exhaust valve (10) is uniformly arranged along the surface of the air bag pipe column (2).
6. The airborne multistage airbag cushion assembly of claim 1, wherein: the lower air bag exhaust valve (14) is a one-way exhaust valve, and the lower air bag exhaust valve (14) is uniformly arranged along the surface of the lower air bag (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364574.5A CN108382598B (en) | 2018-04-23 | 2018-04-23 | Cooperative buffer device provided with airborne multistage air bags |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810364574.5A CN108382598B (en) | 2018-04-23 | 2018-04-23 | Cooperative buffer device provided with airborne multistage air bags |
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| CN108382598A CN108382598A (en) | 2018-08-10 |
| CN108382598B true CN108382598B (en) | 2024-01-12 |
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| CN201810364574.5A Active CN108382598B (en) | 2018-04-23 | 2018-04-23 | Cooperative buffer device provided with airborne multistage air bags |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021236536A1 (en) * | 2020-05-17 | 2021-11-25 | S.W.O.R.D. International Inc. | Inflatable unit load device |
| US11655030B2 (en) * | 2020-06-29 | 2023-05-23 | Hdt Expeditionary Systems, Inc. | Inflatable impact attenuator for parachuted items |
| CN113799983A (en) * | 2021-10-27 | 2021-12-17 | 江西洪都航空工业股份有限公司 | Multilayer air bag type air-drop buffering device |
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