CN108327907B - Working method for equipping airborne multistage airbag cooperative buffering device - Google Patents
Working method for equipping airborne multistage airbag cooperative buffering device Download PDFInfo
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- CN108327907B CN108327907B CN201810364597.6A CN201810364597A CN108327907B CN 108327907 B CN108327907 B CN 108327907B CN 201810364597 A CN201810364597 A CN 201810364597A CN 108327907 B CN108327907 B CN 108327907B
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- 230000003139 buffering effect Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005422 blasting Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 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
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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
- 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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Abstract
The invention discloses a working method for equipping an airborne multistage air bag cooperative buffering device, wherein the multistage air bag cooperative buffering device comprises an upper air bag, an air bag pipe column and a lower air bag; in the air landing process of the equipment, the upper air bag can exhaust air to the outside through an exhaust valve of the upper air bag for pressure relief, and can also exhaust air to an air bag pipe column through a combined exhaust valve, and the air bag pipe column is expanded to realize primary buffering; the air bag pipe column can exhaust air outwards for pressure relief through an air bag pipe column exhaust valve, and can also exhaust air to the lower air bag through a combined exhaust valve, and the lower air bag expands to realize secondary buffering; the lower air bag can exhaust air to the outside through an exhaust valve of the lower air bag to release pressure, so that three-level buffering is realized; after the equipment is airborne and safely landed, the air bag device can be deflated, so that the air bag device is convenient to store and store; the multistage buffering method of the multistage airbag cooperative buffering device can not only prevent the air-landing equipment from directly touching the ground, but also realize multistage release of the pressure in the airbag, prevent the airbag from blasting and ensure the safe landing of the air-landing equipment.
Description
Technical Field
The invention relates to the field of equipment airborne safety protection, in particular to a working method of an equipment airborne multistage air bag cooperative buffering device.
Background
The air bag 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 part of equipment safety guarantee.
In the actual air-drop landing process of equipment, the buffering effect of the conventional air bag buffering device is limited, and the following problems exist.
In the existing landing air bag buffer device of the air-landing equipment, most of the single-air-chamber air bag buffer devices are single in structure, so that the setting of the initial buffer air pressure of an air chamber is too single and has limitation, and the buffer effect is limited.
The existing single-air-chamber air bag buffering device exhausts air outwards through an exhaust hole, so that pressure relief is realized. However, in the air-drop landing buffering process of the equipment, if the exhaust hole of the air bag buffering device is too large, the problem that the air-drop equipment is directly contacted with the ground exists; if the vent hole of the air bag buffer device is too small, the air bag is easy to explode due to the sharp increase of the internal pressure of the air bag cavity and the too slow outward exhaust speed, which can bring fatal damage to air-drop equipment.
In order to overcome the defect that a single-air-chamber air bag buffer device is easy to explode, the technical scheme that a double-air-chamber air bag buffer device is used in a small part of the prior art is as follows: such as the patent with publication number CN1923617A, "multi-stage air bag combined buffer device", but the multi-stage air bag combined buffer device adopts a nested structure, thereby resulting in a limited effective buffer stroke; like patent "double air chamber gasbag buffer" of publication No. CN1923618A, though this kind of gasbag buffer has adopted the superimposed mounting means of gasbag top air chamber and gasbag bottom air chamber, do not have other buffer between gasbag top air chamber and the gasbag bottom air chamber, still cause effective buffer stroke to be limited, gasbag top air chamber and gasbag bottom air chamber are two detached independent air chambers moreover, lead to two air chambers can't carry out the collaborative buffering to air-drop equipment, consequently can't play fine buffering effect to air-drop equipment.
Disclosure of Invention
In order to overcome the problems, the invention provides a working method for equipping an airborne multistage airbag cooperative buffer device, which can simultaneously solve the problems.
The technical scheme adopted by the invention for solving the technical problems is as follows: a working method for equipping an airborne multistage air bag cooperative buffering device, wherein the multistage air bag cooperative buffering device comprises an upper air bag, an air bag pipe column and a lower air bag; the upper air bag, the air bag pipe column and the lower air bag are installed in a superposition mode; the top of the upper air bag is provided with a buckle ring device which is connected with the air-drop equipment, the inner part of the upper air bag is an upper air bag cavity, the surface of the upper air bag is provided with an upper air bag inflation valve, the surface of the upper air bag is provided with an upper air bag exhaust valve, and the overlapped joint of the surface of the upper air bag and the surface of the air bag pipe column is provided with a first combined exhaust valve; an air bag pipe column cavity is formed in the air bag pipe column, 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 combined exhaust valve II is arranged at the overlapped joint of the surface of the air bag pipe column and the surface of the lower air bag; the inner part of the lower air bag is a lower air bag cavity, the surface of the lower air bag is provided with a lower air bag inflation valve, and the surface of the lower air bag is provided with a lower air bag exhaust valve.
The working steps are as follows: the method comprises the following steps that firstly, before equipment air drop is implemented, an upper air bag cavity, an air bag column cavity and a lower air bag cavity of a multi-stage air bag cooperative buffering device are respectively inflated, wherein the upper air bag cavity is inflated and expanded through an upper air bag inflation valve; the air bag pipe column cavity realizes inflation and expansion through an air bag pipe column inflation valve; the lower air bag cavity realizes inflation and expansion through a lower air bag inflation valve; secondly, in the air-drop landing process of the equipment, when the internal air pressure of the upper air bag cavity is higher than a set threshold value of the pressure of an exhaust valve of the upper air bag, the valve of the exhaust valve of the upper air bag is opened, the upper air bag cavity exhausts air to the outside for pressure relief, when the internal air pressure of the upper air bag cavity is higher than the set threshold value of the pressure of a first combined exhaust valve, the valve of the first combined exhaust valve is opened, the upper air bag cavity exhausts air to an air bag pipe column, and the air bag pipe column is expanded to realize primary buffering; step three, in the air-landing process of equipment, when the internal air pressure of the air bag column cavity is higher than the set threshold value of the air bag column exhaust valve pressure, the valve of the air bag column exhaust valve is opened, the air bag column cavity exhausts to the outside and releases pressure, when the internal air pressure of the air bag column is higher than the set threshold value of the joint exhaust valve II pressure, the valve of the joint exhaust valve II is opened, the air bag column cavity exhausts to a lower air bag, and the lower air bag expands to realize secondary buffering; step four, in the air-landing process of the equipment, when the internal air pressure of the lower air bag cavity is higher than a set threshold value of the pressure of an exhaust valve of the lower air bag, the valve of the exhaust valve of the lower air bag is opened, the lower air bag cavity exhausts air to the outside for pressure relief, and three-level buffering is realized; and fifthly, after the equipment is airborne and safely landed, respectively deflating redundant gas in the upper air bag cavity, the air bag column cavity and the lower air bag cavity, and then storing the multi-stage air bag cooperative buffer device.
Preferably, the upper air bag and the lower air bag are the same 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 balloon columns are evenly arranged between the upper balloon and the lower balloon.
Preferably, the air bag pipe column vent valve is a one-way vent valve, and the air bag pipe column vent 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.
Preferably, the first combined exhaust valve is a one-way exhaust valve, and the number of the first combined exhaust valves is consistent with that of the air bag pipe columns.
Preferably, the second combined exhaust valve is a one-way exhaust valve, and the number of the second combined exhaust valves is consistent with that of the air bag pipe columns.
The invention has the beneficial effects that: aiming at the point 1 proposed by the background technology, the problem is solved by adopting a multi-stage air bag cooperative buffer device structurally comprising an upper air bag, an air bag pipe column and a lower air bag. 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 multi-stage buffering in the airborne landing process of the equipment is realized.
Aiming at the 2 nd point proposed by the background technology, the invention adopts the following method: the upper air bag can exhaust air to the outside through an exhaust valve of the upper air bag for pressure relief, and can also exhaust air to the air bag pipe column through a combined exhaust valve, and the air bag pipe column is expanded to realize primary buffering; the air bag pipe column can exhaust air outwards for pressure relief through an air bag pipe column exhaust valve, and can also exhaust air to the lower air bag through a combined exhaust valve, and the lower air bag expands to realize secondary buffering; the lower air bag can exhaust air to the outside through an exhaust valve of the lower air bag to release pressure, so that three-level buffering is realized; the multistage buffering method of the air bag cooperative buffering device can not only prevent the air-landing equipment from directly touching the ground, but also realize multistage release of the internal pressure of the air bag cooperative buffering device, prevent the air bag from blasting and ensure the safe landing of the air-landing equipment.
Aiming at the 3 rd point of the background technology, the invention adopts the mode of overlapping the upper air bag, the air bag pipe column and the lower air bag to carry out installation instead of a nesting mode; the air bag pipe column is arranged between the upper air bag and the lower air bag to increase the effective buffering stroke, so that the buffering effect of the air bag device is effectively enhanced. In addition, the upper air bag and the air bag pipe column, and the air bag pipe column and the lower air bag are cooperatively buffered through the first combined exhaust valve and the second combined exhaust valve respectively, so that a good buffering effect can be achieved on the air-drop equipment.
Note: the foregoing designs are not sequential, each of which provides a distinct and significant advance in the present invention over the prior art.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the whole of the air-drop multistage airbag cooperative buffering device;
FIG. 2 is an overall partial sectional view of the airborne multistage airbag cooperative damping device of the present invention;
FIG. 3 is a front view of the airborne multistage airbag cooperative damping device of the present invention;
FIG. 4 is a left side view of the airborne multistage airbag cooperative damping device of the present invention;
FIG. 5 is a sectional view of the A-A of the air-drop multi-stage air bag cooperative damping device of the present invention;
FIG. 6 is a sectional view of a B-B equipped airborne multi-stage air bag cooperative damping device of the present invention.
In the figures, the reference numerals are as follows:
1. the air bag comprises an upper air bag 2, an air bag pipe column 3, a lower air bag 4, an upper air bag cavity 5, an upper air bag inflation valve 6, an upper air bag exhaust valve 7, a combined exhaust valve I8, an air bag pipe column cavity 9, an air bag pipe column inflation valve 10, an air bag pipe column exhaust valve 11, a combined exhaust valve II 12, a lower air bag cavity 13, a lower air bag inflation valve 14, a lower air bag exhaust valve 15 and a buckle ring device.
Detailed Description
As shown in the figure: a working method for equipping an airborne multistage air bag cooperative buffering device comprises an upper air bag 1, an air bag pipe column 2 and a lower air bag 3; the invention adopts a mode of superposing 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 retaining ring device 15 which is connected with the airborne equipment; an upper air bag inflation valve 5 is arranged on the surface of an upper air bag 1, an upper air bag cavity 4 is formed in 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 7 is arranged at the overlapping joint of the surface of the upper air bag 1 and the surface of each air bag pipe column 2.
As shown in the figure: the number of the air bag pipe columns 2 is 12, and the air bag pipe columns 2 are arranged between the upper air bag 1 and the lower air bag 3 to increase effective buffer stroke; the surface of each air bag pipe column 2 is provided with an air bag pipe column inflation valve 9, the inside of each air bag pipe column 2 is an air bag pipe column cavity 8, the surface of each air bag pipe column 2 is provided with four air bag pipe column exhaust valves 10, and the overlapped joint of the surface of each air bag pipe column 2 and the surface of the lower air bag 3 is provided with a combined exhaust valve II 11.
As shown in the figure: the surface of the lower air bag 3 is provided with a lower air bag inflation valve 13, the interior of the lower air bag 3 is a lower air bag cavity 12, and the surface of the lower air bag 3 is provided with ten lower air bag exhaust valves 14.
As shown in the figure: the working steps are as follows: the method comprises the following steps that firstly, before equipment air-drop is implemented, an upper air bag cavity 4, an air bag column cavity 8 and a lower air bag cavity 12 of a multi-stage air bag cooperative buffering device are respectively inflated, wherein the upper air bag cavity 4 is inflated and expanded through an upper air bag inflation valve 5; the air bag pipe column cavity 8 is inflated and expanded through an air bag pipe column inflation valve 9; the lower air bag cavity 12 is inflated and expanded through a lower air bag inflation valve 13; secondly, in the air-drop landing process of the equipment, when the internal air pressure of the upper air bag cavity 4 is higher than a set threshold of the pressure of an upper air bag exhaust valve 6, a valve of the upper air bag exhaust valve 6 is opened, the upper air bag cavity 4 exhausts air to the outside for pressure relief, when the internal air pressure of the upper air bag cavity 4 is higher than a set threshold of the pressure of a combined exhaust valve I7, a valve of the combined exhaust valve I7 is opened, the upper air bag cavity 4 exhausts air to the air bag tubular column 2, and the air bag tubular column 2 is expanded, so that primary buffering is realized; step three, in the air-drop landing process of the equipment, when the internal air pressure of the air bag column cavity 8 is higher than the set threshold value of the pressure of the air bag column exhaust valve 10, the valve of the air bag column exhaust valve 10 is opened, the air bag column cavity 8 exhausts air to the outside and releases pressure, when the internal air pressure of the air bag column 2 is higher than the set threshold value of the pressure of the combined exhaust valve II 11, the valve of the combined exhaust valve II 11 is opened, the air bag column cavity 8 exhausts air to the lower air bag 3, and the lower air bag 3 expands to realize secondary buffering; step four, in the air-landing equipment process, when the internal pressure of the lower air bag cavity 12 is higher than a set threshold value of the pressure of the lower air bag exhaust valve 14, the valve of the lower air bag exhaust valve 14 is opened, the lower air bag cavity 12 exhausts air to the outside and releases pressure, and three-level buffering is realized; and fifthly, after the equipment is airborne and safely landed, respectively deflating redundant gas in the upper air bag cavity 4, the air bag column cavity 8 and the lower air bag cavity 12, and then storing and storing the multi-stage air bag cooperative buffer device.
As shown in the figure: the sizes of the upper air bag 1 and the lower air bag 3 are consistent; 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 air bag pipe columns 2 are uniformly arranged between the upper air bag 1 and the lower air bag 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 first combined exhaust valve 7 is a one-way exhaust valve, and the number of the first combined exhaust valves 7 is consistent with that of the airbag tubular columns 2; the second combined exhaust valve 11 is a one-way exhaust valve, and the number of the second combined exhaust valves 11 is consistent with that of the 2 airbag tubular columns.
The multistage buffering method of the multistage airbag cooperative buffering device can not only prevent the air-landing equipment from directly touching the ground, but also realize multistage release of the pressure in the airbag, prevent the airbag from blasting and ensure the safe landing of the air-landing equipment.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. A working method for equipping an airborne multi-stage air bag cooperative buffering device comprises an upper air bag (1), an air bag pipe column (2), a lower air bag (3) and an upper air bag cavity (4); the upper air bag (1), the air bag pipe column (2) and the lower air bag (3) are installed in a superposition mode; the top of the upper air bag (1) is provided with a buckle device (15) to be connected with an airborne device, an upper air bag cavity (4) is arranged inside the upper air bag (1), the surface of the upper air bag (1) is provided with an upper air bag inflation valve (5), the surface of the upper air bag (1) is provided with an upper air bag exhaust valve (6), and the overlapping joint of the surface of the upper air bag (1) and the surface of the air bag pipe column (2) is provided with a combined exhaust valve I (7); an air bag pipe column cavity (8) is formed in the air bag pipe column (2), 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 combined exhaust valve II (11) is arranged at the overlapped joint of the surface of the air bag pipe column (2) and the surface of the lower air bag (3); a lower air bag cavity (12) is formed inside the lower air bag (3), a lower air bag inflation valve (13) is arranged on the surface of the lower air bag (3), and a lower air bag exhaust valve (14) is arranged on the surface of the lower air bag (3);
the method is characterized in that: the working steps are as follows:
the method comprises the following steps that firstly, before equipment airborne landing is implemented, an upper air bag cavity (4), an air bag column cavity (8) and a lower air bag cavity (12) of a multi-stage air bag cooperative buffering device are respectively inflated, wherein the upper air bag cavity (4) is inflated and expanded through an upper air bag inflation valve (5); the air bag pipe column cavity (8) is inflated and expanded through an air bag pipe column inflation valve (9); the lower air bag cavity (12) is inflated and expanded through a lower air bag inflation valve (13);
secondly, in the air-drop landing process of the equipment, when the internal air pressure of the upper air bag cavity (4) is higher than a set threshold value of the pressure of an upper air bag exhaust valve (6), a valve of the upper air bag exhaust valve (6) is opened, the upper air bag cavity (4) exhausts air to the outside to release pressure, when the internal air pressure of the upper air bag cavity (4) is higher than a set threshold value of the pressure of a combined exhaust valve I (7), the valve of the combined exhaust valve I (7) is opened, the upper air bag cavity (4) exhausts air to an air bag pipe column (2), and the air bag pipe column (2) is expanded to realize primary buffering;
in the air-drop landing process of the equipment, when the internal air pressure of the air bag column cavity (8) is higher than the set threshold value of the air bag column exhaust valve (10) pressure, the valve of the air bag column exhaust valve (10) is opened, the air bag column cavity (8) exhausts air to the outside for pressure relief, when the internal air pressure of the air bag column (2) is higher than the set threshold value of the combined exhaust valve II (11) pressure, the valve of the combined exhaust valve II (11) is opened, the air bag column cavity (8) exhausts air to the lower air bag (3), and the lower air bag (3) expands to realize secondary buffering;
step four, in the air-landing process of equipment, when the internal air pressure of the lower air bag cavity (12) is higher than a set threshold value of the pressure of the lower air bag exhaust valve (14), the valve of the lower air bag exhaust valve (14) is opened, the lower air bag cavity (12) exhausts air to the outside and releases pressure, and three-level buffering is realized;
fifthly, after the equipment is airborne and safely landed, redundant gas in the upper air bag cavity (4), the air bag column cavity (8) and the lower air bag cavity (12) is respectively discharged, and then the multi-stage air bag is stored in a storage mode in cooperation with the buffer device;
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 lower air bag exhaust valve (14) is a one-way exhaust valve, and the lower air bag exhaust valves (14) are uniformly arranged along the surface of the lower air bag (3); the upper air bag (1) and the lower air bag (3) are consistent in size.
2. The working method of the cooperative buffer device with the airborne multistage air bag as claimed in 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).
3. The working method of the cooperative buffer device with the airborne multistage air bag as claimed in claim 1, wherein: the first combined exhaust valves (7) are one-way exhaust valves, and the number of the first combined exhaust valves (7) is consistent with that of the air bag pipe columns (2).
4. The working method of the cooperative buffer device with the airborne multistage air bag as claimed in claim 1, wherein: the second combined exhaust valve (11) is a one-way exhaust valve, and the number of the second combined exhaust valves (11) is consistent with that of the air bag pipe columns (2).
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| CN201810364597.6A CN108327907B (en) | 2018-04-23 | 2018-04-23 | Working method for equipping airborne multistage airbag cooperative buffering device |
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| CN201810364597.6A CN108327907B (en) | 2018-04-23 | 2018-04-23 | Working method for equipping airborne multistage airbag cooperative buffering device |
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| CN108327907B true CN108327907B (en) | 2021-07-27 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058366A (en) * | 2018-09-25 | 2018-12-21 | 青岛阿斯顿工程技术转移有限公司 | A kind of aerated film of multistage linking buffering |
| CN111216894A (en) * | 2020-02-24 | 2020-06-02 | 徐工集团工程机械有限公司 | Air bag control method and system, air bag capable of adapting to different ground conditions and buffer device |
| GB2610952B (en) * | 2020-05-17 | 2024-06-05 | S W O R D Int Inc | Inflatable unit load device |
| CN111846233A (en) * | 2020-07-20 | 2020-10-30 | 长沙理工大学 | Rigid-flexible coupled airborne cargo combined buffering device |
| CN111846232A (en) * | 2020-07-20 | 2020-10-30 | 长沙理工大学 | Working method of rigid-flexible coupling air-drop cargo combined buffer device |
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