CN108327907A - A working method equipped with an airborne multi-stage airbag cooperative buffer device - Google Patents

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

A working method equipped with an airborne multi-stage airbag cooperative buffer device

technical field

The invention relates to the field of equipment airborne safety protection, in particular to a working method of equipped with an airborne multi-stage airbag cooperative buffer device.

Background technique

Due to its light weight and good energy absorption effect, the airbag cushioning device has been widely used in technical fields such as equipment airborne, drone recovery, space return, etc., and has become an important part of equipment safety.

In the actual equipment airborne landing process, the cushioning effect of the existing airbag cushioning device is limited, and there are the following problems.

Most of the existing landing airbag cushioning devices for airborne equipment use a single-chamber airbag cushioning device with a single structure, resulting in a single and limited setting of the initial cushioning pressure of the air chamber, resulting in limited cushioning effect.

The existing single-chamber airbag cushioning device exhausts air outwards through the air vent, so as to realize pressure relief. However, in the process of equipment airborne landing buffer, if the vent hole of the airbag buffer device is too large, there will be a problem that the airborne equipment will directly touch the ground; If the exhaust speed is too slow, the airbag will explode, which will cause fatal damage to the airborne equipment.

In order to overcome the shortcoming that the single-chamber airbag cushioning device is easy to explode, a small part of the prior art has used the technical scheme of the double-chamber airbag cushioning device: as the patent "multi-stage airbag combined buffering device" with the publication number CN1923617A, but this multiple The combined cushioning device of the first-stage airbag adopts a nested structure, which results in a limited effective buffering stroke; as the patent "double-chamber airbag cushioning device" with the publication number CN1923618A, although this airbag cushioning device adopts the top air chamber of the airbag and the bottom air chamber of the airbag However, there is no other buffer device between the top air chamber and the bottom air chamber of the airbag, which still results in a limited effective buffer stroke, and the top air chamber and the bottom air chamber of the airbag are two separate independent air chambers, resulting in two The air chamber cannot coordinately buffer the airborne equipment, so it cannot play a good buffering effect on the airborne equipment.

Contents of the invention

In order to overcome the above-mentioned problems, the present invention proposes a working method equipped with an airborne multi-stage airbag cooperative buffer device that can simultaneously solve the above-mentioned various problems.

The technical solution adopted by the present invention to solve the technical problem is: a working method of equipped with an airborne multi-stage air bag cooperative buffer device, the multi-stage air bag cooperative buffer device includes an upper air bag, an air bag column and a lower air bag; the upper air bag , The airbag column and the lower airbag are installed in a superimposed manner; the top of the upper airbag is equipped with a buckle device to connect with the airborne equipment. For the air valve, a combined exhaust valve 1 is set at the overlapping connection between the surface of the upper air bag and the surface of the air bag tube; The exhaust valve of the airbag column, the joint exhaust valve 2 is set at the overlapping connection between the surface of the airbag column and the surface of the lower airbag; Air bag exhaust valve.

The working steps are as follows: the first step is to inflate the upper airbag chamber, the airbag column chamber and the lower airbag chamber of the multi-stage airbag cooperative buffer device respectively before implementing the equipment airborne, wherein the upper airbag chamber passes through the upper airbag The inflation valve realizes inflation and expansion; the airbag tube column cavity realizes inflation and expansion through the airbag column inflation valve; the lower airbag cavity realizes inflation and expansion through the lower airbag inflation valve; in the second step, during the equipment airborne landing process, the upper airbag When the internal air pressure of the upper airbag chamber is higher than the set threshold value of the pressure of the upper airbag exhaust valve, the valve of the upper airbag exhaust valve is opened, and the upper airbag chamber exhausts the pressure to the outside, and the inner air pressure of the upper airbag chamber is higher than the joint When the pressure of the exhaust valve 1 is set to a threshold value, the valve of the joint exhaust valve 1 is opened, the upper airbag cavity is exhausted to the airbag string, and the airbag string is expanded to achieve a first-level buffer; the third step is the airborne landing process of the equipment In the above, when the internal air pressure of the air bag tube column cavity is higher than the set threshold value of the pressure of the air bag column exhaust valve, the valve of the air bag tube column exhaust valve is opened, and the air bag tube column cavity exhausts and releases pressure to the outside, so When the internal air pressure of the airbag column is higher than the set threshold value of the combined exhaust valve 2 pressure, the valve of the combined exhaust valve 2 is opened, the cavity of the airbag column is exhausted from the downward airbag, and the lower airbag is inflated to realize secondary buffering ; In the fourth step, during the airborne landing process of the equipment, when the internal air pressure of the lower airbag cavity is higher than the setting threshold value of the lower airbag exhaust valve pressure, the valve of the lower airbag exhaust valve is opened, and the lower airbag cavity discharges to the outside world. Air pressure relief to achieve three-level buffering; the fifth step, after the equipment is airborne and lands safely, the excess gas in the upper airbag cavity, airbag column cavity, and lower airbag cavity is respectively deflated, and then the multi-stage airbag collaborative buffer device is stored deposit.

Preferably, the size of the upper airbag is consistent with that of the lower airbag.

Preferably, the exhaust valve of the upper airbag is a one-way exhaust valve, and the exhaust valves of the upper airbag are evenly arranged along the surface of the upper airbag.

Preferably, the airbag column is evenly arranged between the upper airbag and the lower airbag.

Preferably, the airbag column exhaust valve is a one-way exhaust valve, and the airbag column exhaust valve is evenly arranged along the surface of the airbag column.

Preferably, the lower airbag exhaust valve is a one-way exhaust valve, and the lower airbag exhaust valve is evenly arranged along the surface of the lower airbag.

Preferably, the joint exhaust valve 1 is a one-way exhaust valve, and the number of the joint exhaust valve 1 is the same as the number of airbag strings.

Preferably, the second combined exhaust valve is a one-way exhaust valve, and the number of the second combined exhaust valve is the same as the number of air bag strings.

The beneficial effects of the present invention are: aiming at the first point raised by the background technology, the problem is solved by adopting a multi-stage airbag cooperative buffer device with a structure including an upper airbag, an airbag string, and a lower airbag. Among them, the upper airbag, the airbag string and the lower airbag can set different initial buffer air pressures according to the specific airborne landing conditions, so as to realize multi-stage buffering during the airborne landing process of the equipment.

In view of the second point proposed by the background technology, the present invention adopts the following method: the upper airbag can exhaust the pressure to the outside through the upper airbag exhaust valve, and can also exhaust the airbag column through the combined exhaust valve, and the airbag column expands , to achieve a first-level buffer; the air bag string can be exhausted outward through the air bag string exhaust valve, and can also be exhausted through the joint exhaust valve two to the downward air bag, and the lower air bag is inflated to achieve a second-level buffer; the lower air bag can be Exhaust and release pressure to the outside through the lower airbag exhaust valve to achieve three-stage buffering; the multi-stage buffering method of the airbag cooperative buffer device can not only prevent the airborne equipment from directly touching the ground, but also realize the multi-stage release of the internal pressure of the airbag cooperative buffer device , prevent the airbag from bursting, and ensure the safe landing of the airborne equipment.

Aiming at the third point of the background technology, the present invention adopts the method of superimposing the upper airbag, the airbag string and the lower airbag for installation instead of nesting; the airbag string is arranged between the upper airbag and the lower airbag to increase the effective buffer stroke , thereby effectively enhancing the cushioning effect of the airbag device. Moreover, the upper airbag and the airbag column of the present invention, and the airbag column and the lower airbag respectively carry out cooperative buffering through the joint exhaust valve 1 and the joint exhaust valve 2, so it can play a good buffering effect on airborne equipment.

Note: the above-mentioned designs are in no particular order, and each of them makes the present invention have difference and remarkable progress compared with the prior art.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the overall schematic diagram of the airborne multi-stage airbag cooperative buffer device equipped with the present invention;

Fig. 2 is an overall partial cross-sectional view of the airborne multi-stage airbag cooperative buffer device equipped with the present invention;

Fig. 3 is the front view of the airborne multi-stage airbag cooperative buffer device equipped with the present invention;

Fig. 4 is a left view of the airborne multi-stage airbag cooperative buffer device equipped with the present invention;

Fig. 5 is an A-A cross-sectional view of the airborne multi-stage airbag cooperative buffer device equipped with the present invention;

Fig. 6 is a B-B sectional view of the airborne multi-stage airbag cooperative buffer device equipped with the present invention.

In the figure, the reference signs are as follows:

1. Upper airbag 2, airbag column 3, lower airbag 4, upper airbag cavity 5, upper airbag inflation valve 6, upper airbag exhaust valve 7, joint exhaust valve 18, airbag column cavity 9, airbag column inflation Valve 10, airbag column exhaust valve 11, combined exhaust valve two 12, lower airbag cavity 13, lower airbag inflation valve 14, lower airbag exhaust valve 15, buckle device.

Detailed ways

As shown in the figure: a working method equipped with an airborne multi-stage airbag cooperative buffer device, the multi-stage airbag cooperative buffer device includes an upper air bag 1, an air bag column 2 and a lower air bag 3; the present invention adopts an upper air bag 1, an air bag tube The column 2 and the lower airbag 3 are installed in a superimposed manner; the top of the upper airbag 1 is provided with a buckle device 15 to connect with the airborne equipment; the surface of the upper airbag 1 is provided with an upper airbag inflation valve 5, and the inside of the upper airbag 1 is the upper airbag chamber 4, and the upper airbag Ten upper airbag exhaust valves 6 are arranged on the surface of the upper airbag 1, and a joint exhaust valve 7 is arranged at the overlapping connection between the surface of the upper airbag 1 and the surface of each airbag column 2.

As shown in the figure: there are 12 airbag columns, and the airbag columns 2 are arranged between the upper airbag 1 and the lower airbag 3 to increase the effective buffer stroke; each airbag column 2 is provided with an airbag column Inflatable valve 9, inside of each airbag column 2 is an airbag column cavity 8, four airbag column exhaust valves 10 are arranged on the surface of each airbag column 2, and the overlap between the surface of each airbag column 2 and the surface of the lower airbag 3 Joint exhaust valve 2 11 is arranged at the joint.

As shown in the figure: the surface of the lower airbag 3 is provided with a lower airbag inflation valve 13, the inside of the lower airbag 3 is a lower airbag chamber 12, and the surface of the lower airbag 3 is provided with ten lower airbag exhaust valves 14.

As shown in the figure: the working steps are as follows: the first step is to inflate the upper airbag cavity 4, the airbag column cavity 8 and the lower airbag cavity 12 of the multi-stage airbag cooperative buffer device respectively before implementing the equipment airborne, wherein, the The upper airbag cavity 4 is inflated and expanded through the upper airbag inflation valve 5; the airbag column cavity 8 is inflated and expanded through the airbag column inflation valve 9; the lower airbag cavity 12 is inflated and expanded through the lower airbag inflation valve 13; In the second step, during the airborne landing process of the equipment, when the internal air pressure of the upper airbag cavity 4 is higher than the setting threshold value of the pressure of the upper airbag exhaust valve 6, the valve of the upper airbag exhaust valve 6 is opened, and the upper airbag cavity 4 Exhaust and release pressure to the outside world. When the internal air pressure of the upper air bag chamber 4 is higher than the set threshold value of the combined exhaust valve-7 pressure, the valve of the combined exhaust valve-7 is opened, and the upper air bag chamber 4 is directed toward the air bag tube. The column 2 is exhausted, and the airbag column 2 is inflated to achieve a first-level buffer; in the third step, during the airborne landing process of the equipment, the internal air pressure of the airbag column cavity 8 is higher than the set threshold value of the pressure of the airbag column exhaust valve 10 , the valve of the airbag column exhaust valve 10 is opened, and the airbag column cavity 8 exhausts the pressure to the outside, and the internal air pressure of the airbag column 2 is higher than the set threshold value of the joint exhaust valve 11 pressure , the valve of the combined exhaust valve 2 11 is opened, the airbag column cavity 8 is exhausted to the lower airbag 3, and the lower airbag 3 is inflated to realize secondary buffering; in the fourth step, during the airborne landing process of the equipment, the lower airbag cavity When the internal air pressure of 12 is higher than the setting threshold value of the pressure of the lower airbag exhaust valve 14, the valve of the lower airbag exhaust valve 14 is opened, and the lower airbag chamber 12 exhausts and releases pressure to the outside, realizing three-stage buffering; the fifth step 1. After the equipment is airborne and landed safely, the excess gas in the upper airbag cavity 4, the airbag column cavity 8, and the lower airbag cavity 12 is deflated respectively, and then the multi-stage airbag cooperative buffer device is stored.

As shown in the figure: the size of the upper airbag 1 and the lower airbag 3 are consistent; the upper airbag exhaust valve 6 is a one-way exhaust valve, and the upper airbag exhaust valve 6 is evenly arranged along the surface of the upper airbag 1; The airbag column 2 is evenly arranged between the upper airbag 1 and the lower airbag 3; the airbag column exhaust valve 10 is a one-way exhaust valve, and the airbag column exhaust valve 10 is evenly arranged along the surface of the airbag column 2 The lower airbag exhaust valve 14 is a one-way exhaust valve, and the lower airbag exhaust valve 14 is evenly arranged on the surface of the lower airbag 3; the combined exhaust valve-7 is a one-way exhaust valve, and the combined exhaust valve- The number of 7 is consistent with the number of 2 airbag strings; the combined exhaust valve 2 11 is a one-way exhaust valve, and the number of combined exhaust valve 2 11 is consistent with the number of 2 airbag strings.

The multi-stage buffering method of the multi-stage airbag cooperative buffer device in the present invention can not only prevent the airborne equipment from directly touching the ground, but also realize the multi-stage release of the internal pressure of the airbag, prevent the airbag from bursting, and ensure the safe landing of the airborne equipment.

The above detailed description is a specific description of the feasible embodiment of the present invention. This embodiment is not used to limit the patent scope of the present invention. Any equivalent implementation or change that does not deviate from the present invention should be included in the patent scope of this case. middle.

Claims (8)

1. A kind of working method of equipment airborne multistage airbag cooperative buffering device, described multistage airbag cooperative buffering device comprises upper airbag (1), airbag column (2), lower airbag (3) and upper airbag chamber (4) ; The upper airbag (1), the airbag column (2) and the lower airbag (3) are installed in a superimposed manner; the top of the upper airbag (1) is provided with a buckle device (15) to be connected with the airborne equipment, and the upper airbag (1) ) inside is an upper airbag cavity (4), the upper airbag (1) surface is provided with an upper airbag inflation valve (5), the upper airbag (1) surface is provided with an upper airbag exhaust valve (6), and the upper airbag (1) surface is connected with the airbag tube A combined exhaust valve one (7) is set at the overlapping joint on the surface of the column (2); the inside of the airbag column (2) is an airbag column cavity (8), and the surface of the airbag column (2) is provided with an airbag column inflation valve (9), the surface of the airbag column (2) is provided with an airbag column exhaust valve (10), and the overlapping connection between the surface of the airbag column (2) and the surface of the lower airbag (3) is provided with a joint exhaust valve two (11); The inside of the lower airbag (3) is a lower airbag cavity (12), the lower airbag (3) surface is provided with a lower airbag inflation valve (13), and the lower airbag (3) surface is provided with a lower airbag exhaust valve (14); It is characterized in that: the working steps are as follows: The first step, before implementing the equipment airborne, respectively inflates the upper airbag chamber (4), the airbag column chamber (8) and the lower airbag chamber (12) of the multi-stage airbag cooperative buffer device, wherein the upper airbag chamber (4) Inflation and expansion are realized by the upper air bag inflation valve (5); the inflation and expansion of the air bag column cavity (8) is realized by the air bag column inflation valve (9); the lower air bag cavity (12) is inflated by the lower air bag Inflation valve (13) realizes inflation expansion; In the second step, during the airborne landing process of the equipment, when the internal air pressure of the upper airbag cavity (4) is higher than the set threshold value of the pressure of the upper airbag exhaust valve (6), the valve of the upper airbag exhaust valve (6) Open, the upper air bag cavity (4) exhausts and releases pressure to the outside world, when the internal air pressure of the upper air bag cavity (4) is higher than the setting threshold value of the combined exhaust valve one (7) pressure, the combined exhaust valve one The valve of (7) is opened, the upper air bag chamber (4) exhausts air to the air bag string (2), and the air bag string (2) expands to realize a first-level buffer; In the third step, during the airborne landing process of the equipment, when the internal air pressure of the airbag column cavity (8) is higher than the set threshold value of the pressure of the airbag column exhaust valve (10), the airbag column exhaust valve (10) ) valve is opened, and the airbag tube column cavity (8) exhausts and releases pressure to the outside, and when the internal air pressure of the airbag column (2) is higher than the set threshold value of the pressure of the combined exhaust valve two (11), the combined The valve of exhaust valve two (11) is opened, and the airbag tube column cavity (8) is exhausted to the downward airbag (3), and the lower airbag (3) is inflated to realize secondary buffering; In the fourth step, during the airborne landing process of the equipment, when the internal air pressure of the lower airbag chamber (12) is higher than the set threshold value of the pressure of the lower airbag exhaust valve (14), the valve of the lower airbag exhaust valve (14) will Open, the lower airbag cavity (12) exhausts and releases pressure to the outside, realizing three-stage buffering; The fifth step, after the airborne landing of the equipment, respectively deflate the excess gas in the upper airbag chamber (4), the airbag column chamber (8), and the lower airbag chamber (12), and then store the multi-stage airbag cooperative buffer device deposit. 2 . A working method for equipping an airborne multi-stage airbag cooperative buffer device according to claim 1 , characterized in that: the size of the upper airbag ( 1 ) and the lower airbag ( 3 ) are the same. 3. a kind of working method of equipment airborne multi-stage air bag cooperative buffering device according to claim 1, is characterized in that: described upper air bag exhaust valve (6) is one-way exhaust valve, upper air bag exhaust valve ( 6) Arrange evenly along the surface of the upper airbag (1). 4. A kind of working method equipped with an airborne multi-stage airbag cooperative buffer device according to claim 1, characterized in that: the airbag column (2) is evenly spaced between the upper airbag (1) and the lower airbag (3). layout. 5. A kind of working method equipped with an airborne multi-stage airbag cooperative buffer device according to claim 1, characterized in that: the airbag column exhaust valve (10) is a one-way exhaust valve, and the airbag column exhaust The valves (10) are evenly arranged along the surface of the air bag string (2). 6. a kind of working method of equipment airborne multi-stage airbag cooperative buffering device according to claim 1, is characterized in that: described lower airbag exhaust valve (14) is a one-way exhaust valve, lower airbag exhaust valve ( 14) Arrange evenly along the surface of the lower air bag (3). 7. A kind of working method of equipment airborne multi-stage airbag cooperative buffering device according to claim 1, it is characterized in that: described joint exhaust valve one (7) is a one-way exhaust valve, joint exhaust valve one ( 7) The number is consistent with the number of the air bag column (2). 8. A kind of working method of equipment airborne multistage airbag cooperative buffering device according to claim 1, is characterized in that: described joint exhaust valve two (11) is one-way exhaust valve, joint exhaust valve two ( 11) is consistent with the number of air bag strings (2).