An adaptively adjustable cushioning buoyancy airbag

Abstract

This invention provides an adaptively adjustable cushioning and floating airbag, comprising flight equipment, a floor, a bottom connecting plate, an airbag connecting strap, connecting strap attachment points, connecting strap bolts, nuts, a grooved guide rail, a cushioning airbag, and a floating airbag. The cushioning airbag and floating airbag are folded and sealed into an airbag package, stored directly beneath the floor of the flight equipment. The bottom connecting plate is installed beneath the floor, and the bottom connecting plate has a grooved guide rail for the connecting strap attachment points to slide. The airbag package is equipped with an airbag connecting strap, which is connected to the connecting strap attachment points via connecting strap bolts and nuts. When the airbag package inflates, the connecting strap attachment points move from the inner end of the grooved guide rail to the outer end of the grooved guide rail along the direction of force. This design enables safe landing or effective recovery of drones and spacecraft, effectively ensuring crew safety and significantly improving survival rates, while also protecting flight equipment and facilitating recovery and reuse.

Description

Technical Field

[0001] This invention belongs to the field of personal protective technology, specifically relating to an adaptively adjustable cushioning and flotation airbag. Background Technology

[0002] When unmanned aerial vehicles (UAVs), spacecraft, and other aerospace flight equipment encounter emergencies during flight and need to make an emergency landing, the accompanying buffer airbags or flotation airbags can effectively protect the flight equipment, thereby ensuring the safety of the crew or equipment.

[0003] In order to ensure the floating stability of the flight equipment after it touches the water, at least two floating airbags are usually symmetrically arranged on the left and right sides of the fuselage to maintain balance. Since a shorter connecting strap is more conducive to restricting the freedom of the floating airbag and preventing it from swinging too much when it enters the water, the connecting strap attachment points of the floating airbag are usually arranged on both sides of the fuselage, so that the airbag fits the flight equipment better after it is deployed, thus improving the floating stability.

[0004] Currently, the emergency airbags equipped on drones or spacecraft typically only have a single function of landing cushioning or floating on water, failing to integrate the two functions. Summary of the Invention

[0005] The purpose of this invention is to provide an adaptively adjustable cushioning and floating airbag that, while taking into account both landing cushioning and water-based floating functions, not only ensures a small package volume but also significantly shortens the airbag connecting strap, strengthens the airbag's restraint, and thus improves water-based floating stability.

[0006] Invention technical solution: An adaptively adjustable cushioning and floating airbag, comprising flight equipment, floor, bottom connecting plate, airbag connecting strap, connecting strap hanging point, connecting strap bolt, nut, grooved guide rail, cushioning airbag and floating airbag. The cushioning airbag and floating airbag are folded and sealed into an airbag package, which is stored directly under the floor of the flight equipment. The bottom connecting plate is installed under the floor, and the bottom connecting plate has a grooved guide rail for sliding of the connecting strap hanging point. The airbag package is provided with an airbag connecting strap, which is connected to the connecting strap hanging point through the connecting strap bolt and nut. When the airbag package is inflated, the connecting strap hanging point moves from the inner end of the grooved guide rail to the outer end of the grooved guide rail along the direction of force.

[0007] In the above scheme, the airbag connecting strap includes a buffer airbag connecting strap and a floating airbag connecting strap. In the sealed state, the airbag connecting strap is in a relaxed state, and all the connecting strap hanging points are concentrated in the center of the bottom connecting plate, that is, the inner end of the groove guide rail.

[0008] In the above scheme, the bottom of the connecting plate is provided with an outer skin that protects the airbag enclosure.

[0009] In the above scheme, the connecting strap attachment point is vertically limited to between the bottom connecting plate and the floor of the flight equipment.

[0010] In the above scheme, the lengths of the buffer airbag connecting strap and the floating airbag connecting strap are determined according to the volume of the flight equipment, so that the buffer airbag is located at the lower end of the flight equipment and the floating airbag is located on both sides of the flight equipment.

[0011] The advantages and beneficial effects of this invention are as follows: This invention provides an adaptively adjustable cushioning and flotation airbag. The designed adaptive adjustable connecting strap attachment point structure realizes the adaptive adjustment function, achieving a smaller package volume while effectively solving the problem of poor buoyancy stability caused by excessively long connecting straps in the flotation airbag. This invention can be widely used in various aircraft or airdrop equipment, not only taking into account landing cushioning and water landing flotation functions, but also meeting the current equipment requirements of aircraft with its high integration and light weight. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the installation of the buffer floating airbag in the sealed state of the present invention;

[0013] Figure 2 This is a schematic diagram showing the buffer floating airbag of the present invention connected to the hanging point of the connecting strap in the sealed state;

[0014] Figure 3 This is a schematic diagram of the structure of the connecting bracket with the hanging point of the present invention;

[0015] Figure 4 This is a schematic diagram of the initial installation position of the connecting strap hanging point on the bottom connecting plate of the present invention;

[0016] Figure 5 This is a schematic diagram of the inflated and deployed cushioning and floating airbag of the present invention;

[0017] Figure 6 This is a schematic diagram showing the movement of the connecting strap attachment points to all four sides after the buffer floating airbag of the present invention is inflated and deployed.

[0018] Among them, 1-flight equipment, 2-floor, 3-bottom connecting plate, 4-outer skin, 5-airbag enclosure, 6-airbag connecting strap, 7-connecting strap attachment point, 8-connecting strap bolt, 9-nut, 10-groove guide rail, 11-buffer airbag, 12-buffer airbag connecting strap, 13-floating airbag, 14-floating airbag connecting strap. Detailed Implementation

[0019] The present invention will be further described in detail below through specific embodiments:

[0020] Figure 1-6As shown, when the cushioning airbag 11 and the floating airbag 13 are not in operation, they are folded and sealed into an airbag package 5, which is stored directly below the floor 2 of the flight equipment 1. A bottom connecting plate 3 is installed below the floor 2, and a grooved guide rail 10 is provided on the bottom connecting plate 3. The connecting strap attachment point 7 is installed between the floor 2 and the bottom connecting plate 3 and can move along the direction of force on the grooved guide rail 10. The airbag package 5 is connected to the connecting strap attachment point 7 through the airbag connecting strap 6, connecting strap bolt 8, and nut 9. The airbag connecting strap 6 includes a cushioning airbag connecting strap 12 and a floating airbag connecting strap 14. In the sealed state, the airbag connecting strap 6 is in a relaxed state, and all the connecting strap attachment points 7 are concentrated at the center of the bottom connecting plate 3, that is, at the inner end of the grooved guide rail 10. Figure 4 As shown. The outer skin 4 is installed on the bottom connecting plate 3 and protects the airbag enclosure 5. The buffer airbag 11 and the floating airbag 13 are both connected to the connecting strap hanging point 7 by the airbag connecting strap 6, bolts, and nuts 9. The connecting strap hanging point 7 is vertically limited between the bottom connecting plate 3 and the floor of the flight equipment 1. The bottom connecting plate 3 is provided with a grooved guide rail 10 for the connecting strap hanging point to slide. In the non-working enclosure state, all the connecting strap hanging points 7 are close to the center position to facilitate a smaller enclosure volume.

[0021] When the system starts working, the air supply device quickly inflates the buffer airbag 11 and the floating airbag 13 respectively. The buffer airbag 11 and the floating airbag 13 quickly inflate and expand, and the outer skin 4 is thrown out. As the annular buffer airbag 11 inflates and expands, the buffer airbag connecting strap 12 moves outward and spreads outward. At the same time, under the connection of the connecting strap bolt 8 and nut 9, the connecting strap hanging point 7 is pulled to move outward along the grooved guide rail 10. When the buffer airbag 11 is fully inflated and expanded, the connecting strap hanging point 7 is finally limited to the outermost side of the grooved guide rail 10 under the tension of the inflated buffer airbag 11. The floating airbag 13 is connected to the connecting strap attachment points 7 on the left and right sides via the floating airbag connecting strap 14, connecting strap bolts 8, and nuts 9. After inflation and deployment, it is positioned on the left and right sides of the flight equipment 1. Because the connecting strap attachment points 7 are constrained to the outermost edge of the grooved guide rail under the tension of the buffer airbag connecting strap, a shorter floating airbag connecting strap can be used to make the floating airbag fit the flight equipment as closely as possible, ultimately maintaining a stable and relatively fixed position on the left and right sides of the flight equipment 1.

[0022] When the flight equipment 1 lands, the buffer airbag 11 cushions the flight equipment 1, thus ensuring a smooth landing.

[0023] When the flight equipment 1 touches the water, the floating airbags 13 on both sides provide balancing buoyancy for the flight equipment 1, and because the connecting strap attachment points 7 have moved to the outer perimeter under the tension of the cushioning airbag connecting straps 12, as... Figure 6As shown, the floating airbag connecting strap 14 can be designed with a shorter length to ensure that the floating airbag 13 fits the flight equipment 1 better, avoid the problem of excessive swing amplitude of the floating airbag 13 caused by the excessive length of the floating airbag connecting strap 14, and improve the stability of floating on water.

[0024] The above technical solutions are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent changes made in accordance with the scope of this application shall still fall within the protection scope of this application.

Claims

1. An adaptively adjustable cushioning and floating airbag, comprising flight equipment (1), floor (2), bottom connecting plate (3), airbag connecting strap (6), connecting strap hanging point (7), connecting strap bolt (8), nut (9), grooved guide rail (10), cushioning airbag (11), and floating airbag (13), characterized in that, The cushioning airbag (11) and the flotation airbag (13) are folded and sealed into an airbag package (5), which is stored directly below the floor (2) of the flight equipment (1). A bottom connecting plate (3) is installed below the floor (2). The bottom connecting plate (3) has a grooved guide rail (10) for sliding the connecting strap hanging point (7). The airbag package (5) is equipped with an airbag connecting strap (6). The airbag connecting strap (6) is connected to the connecting strap hanging point (7) by connecting strap bolts (8) and nuts (9). When the airbag is sealed and inflated, the connecting strap hanging point (7) is moved from the inner end of the grooved guide rail (10) to the outer end of the grooved guide rail (10) along the direction of force. The airbag connecting strap (6) includes a buffer airbag connecting strap (12) and a floating airbag connecting strap (14). In the sealed state, the airbag connecting strap (6) is in a relaxed state, and all the connecting strap hanging points (7) are concentrated in the center of the bottom connecting plate (3), that is, the inner end of the grooved guide rail (10). The lengths of the buffer airbag connecting strap (12) and the floating airbag connecting strap (14) are determined according to the volume of the flight equipment (1), so that the buffer airbag (11) is located in the flight equipment (1). At the lower end, the floating airbag (13) is located on both sides of the flight equipment (1); as the annular buffer airbag (11) is inflated, the buffer airbag connecting strap (12) moves outward and diffuses in all directions. At the same time, under the connection of the connecting strap bolt (8) and nut (9), the connecting strap hanging point (7) is pulled outward along the groove guide rail (10). When the buffer airbag (11) is fully inflated and unfolded, under the tension of the inflated buffer airbag (11), the connecting strap hanging point (7) is finally limited to the outermost side of the groove guide rail (10). The floating airbag (13) is connected to the connecting strap hanging points (7) on the left and right sides through the floating airbag connecting strap (14), connecting strap bolt (8), and nut (9). After being inflated and unfolded, it is located on the left and right sides of the flight equipment (1).

2. The adaptively adjustable buffer buoyancy airbag according to claim 1, characterized in that, The bottom connecting plate (3) is provided with an outer skin (4) that protects the airbag sealing (5).

3. The adaptively adjustable buffer buoyancy airbag according to claim 1, characterized in that, The connecting strap attachment point (7) is located vertically between the bottom connecting plate (3) and the floor of the flight equipment (1).

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