Pressure self-regulating device and method for landing airbag inside heavy equipment air-drop buffer airbag

Abstract

The application relates to a device and method for automatically adjusting the pressure in a lateral landing airbag of a heavy-load air-drop buffer airbag, belonging to the field of air drop. The device comprises a bottom plate, a top plate, a buffer airbag connecting the bottom plate and the top plate, and a separation cloth separating the buffer airbag into a left airbag and a right airbag. The left airbag and the right airbag are respectively connected with at least one air inlet and at least one air outlet. The separation cloth is provided with at least one communication port. The communication port and the air outlet are respectively connected with a valve linkage mechanism. The valve linkage mechanism comprises a rotatable valve. When the top plate is inclined to one side relative to the bottom plate, the corresponding valve linkage mechanism drives the corresponding valve to rotate only in one direction towards the inclined side and only in one direction away from the inclined side. The device and method can increase the air pressure of the landing side airbag when the buffer airbag lands laterally, improve the buffering effect, and reduce the risk of rollover.

Description

Technical Field

[0001] This application relates to the field of airdrops, and more specifically, to a device and method for self-regulating the pressure inside the lateral landing bladder of a heavy-duty airdrop buffer airbag. Background Technology

[0002] To ensure the safe landing of the airdrop vehicle within the predetermined overload range during heavy-load airdrops, a cushioning airbag system is required to absorb impact damage. For example... Figure 1 As shown, existing heavy-duty airdrop buffer airbag devices generally include a base plate 100, a top plate 110, and a bottom and a buffer airbag 120 connected to the base plate 100 and the top plate 110 respectively. The base plate 100 is provided with at least two air inlets 130 that communicate with the buffer airbag 120. The buffer airbag 120 is provided with at least one exhaust port 140 at each end. When the heavy-duty airdrop buffer device lands, external gas enters the buffer airbag 120 through the air inlets 130 and is discharged through the exhaust ports 140 to achieve the buffering function.

[0003] However, existing heavy-duty airdrop airbags are often designed with redundancy to avoid impact damage to the airdropped vehicle. With the improvement of airbag cushioning efficiency, due to the uncontrollable landing attitude, the airbag compression process during the side landing of the vehicle often pushes the airdropped vehicle to overturn, which also has a significant impact on the cushioning efficiency, causing the airdrop mission to fail.

[0004] Therefore, a device and method are needed that can self-adjust the pressure of the airbag to prevent the airbag from tipping over and causing the vehicle to be airdropped. Summary of the Invention

[0005] The purpose of this application is to provide a device and method for self-adjusting the pressure inside the lateral landing bladder of a heavy-duty airdrop buffer airbag, which can increase the air pressure of the landing side airbag during lateral landing to improve the buffering effect and reduce the risk of rollover.

[0006] This application is implemented as follows:

[0007] This application provides a pressure self-regulating device for the lateral landing bladder of a heavy-duty airdrop buffer airbag, comprising a base plate, a top plate, a bottom plate, a buffer airbag connected to the bottom plate and the top plate respectively, and a partition cloth disposed within the buffer airbag. The base plate has at least two air inlets communicating with the buffer airbag, and the side wall of the buffer airbag has at least two exhaust ports. The partition cloth divides the buffer airbag into a left airbag and a right airbag, and the left airbag and the right airbag are respectively connected to at least one air inlet and at least one exhaust port. The partition cloth has at least one connecting port, and the connecting port and the exhaust port are respectively connected to a valve linkage mechanism. The valve linkage mechanism includes a valve that can be rotated to open and close the corresponding connecting port or exhaust port. When the top plate is tilted to one side relative to the bottom plate, it drives the corresponding valve linkage mechanism to limit the valve corresponding to the connecting port to rotate only in one direction toward the tilted side, and limits the valve corresponding to the exhaust port to rotate only in one direction away from the tilted side.

[0008] In some alternative implementations, the valve linkage mechanism includes a door frame, a valve rotatably connected to the top of the door frame via a valve shaft, a bolt shaft connected to the bottom of the door frame, two valve bolts rotatably connected to both ends of the bolt shaft, two tension springs with one end connected to the door frame, two linkage cables, cable swing seats corresponding to each linkage cable, and cable mounting seats corresponding to each cable swing seat. The other ends of the two tension springs are respectively connected to one end of the two valve bolts, and the other ends of the two valve bolts are respectively connected to one end of the two linkage cables. Each cable swing seat... The bottom end is connected to one end of the corresponding steel cable mounting seat, and the other ends of the two linkage steel cables slide through the top of the corresponding steel cable swing seat and are connected to the other end of the corresponding steel cable mounting seat; the steel cable mounting seat of the corresponding valve linkage mechanism of the connecting port is connected to the bottom plate, and the steel cable mounting seat of the corresponding valve linkage mechanism of the exhaust port is connected to the top plate; when the top plate is tilted to one side relative to the bottom plate, the partition cloth or the top plate respectively drives one linkage steel cable of the corresponding valve linkage mechanism to stretch the valve bolt to rotate, so as to block and limit the corresponding valve to only rotate in one direction towards the tilted side or away from the tilted side.

[0009] In some alternative implementations, each cable swing seat is arranged perpendicularly to the corresponding connected cable mounting seat.

[0010] In some alternative implementations, at least one exhaust port is provided on each side of the airbag.

[0011] In some alternative implementations, the number of air inlets, exhaust outlets, and connecting ports is two or more, and they are arranged at intervals along the length of the buffer airbag.

[0012] This application also provides a method for self-regulating the pressure inside the lateral landing chamber of a heavy-duty airdrop buffer airbag, which is performed using the aforementioned self-regulating device for the pressure inside the lateral landing chamber of a heavy-duty airdrop buffer airbag, and includes the following steps:

[0013] The heavy equipment is fixed at its bottom to the top surface of the pressure self-regulating device inside the side landing bladder of the heavy equipment airdrop buffer airbag for airdrop. During airdrop, the heavy equipment and the pressure self-regulating device inside the side landing bladder of the heavy equipment airdrop buffer airbag descend at a horizontal speed and move to one side. When the top plate tilts to one side relative to the bottom plate, it drives the corresponding valve linkage mechanism to limit the corresponding valve of the connection port to rotate only in one direction towards the tilted side and limit the corresponding valve of the exhaust port to rotate only in one direction away from the tilted side. This allows gas to enter the left and right airbags through the air inlets respectively. The air pressure inside the left and right airbags increases and pushes the corresponding valve to close the corresponding airbag closer to the tilted side, allowing the gas in the corresponding airbag away from the tilted side to be discharged.

[0014] The beneficial effects of the application are as follows: The self-regulating pressure device inside the heavy-duty airdrop buffer airbag lateral landing bag provided in this application includes a base plate, a top plate, a bottom plate, and a buffer airbag connected to the bottom plate and the top plate respectively, and a partition cloth disposed inside the buffer airbag. The base plate is provided with at least two air inlets communicating with the buffer airbag, and the side wall of the buffer airbag is provided with at least two exhaust ports. The partition cloth divides the buffer airbag into a left airbag and a right airbag. The left airbag and the right airbag are respectively connected to at least one air inlet and at least one exhaust port. The partition cloth is provided with at least one connecting port. The connecting port and the exhaust port are respectively connected to a valve linkage mechanism. The valve linkage mechanism includes a valve that can be rotated to open and close the corresponding connecting port or exhaust port. When the top plate is tilted to one side relative to the bottom plate, it drives the corresponding valve linkage mechanism to limit the valve corresponding to the connecting port to rotate only in one direction toward the tilted side, and limits the valve corresponding to the exhaust port to rotate only in one direction away from the tilted side. The self-adjusting device and method for the pressure inside the side landing airbag of the heavy-duty air-dropped airbag provided in this application can control the flow direction of the gas inside the airbag during side landing to increase the air pressure of the airbag on the landing side, thereby improving the cushioning effect and reducing the risk of vehicle rollover. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A perspective structural diagram of a heavy-duty air-drop buffer airbag device in the prior art;

[0017] Figure 2 A perspective structural schematic diagram of the self-adjusting pressure device inside the lateral landing bladder of the heavy-duty airdrop buffer airbag provided in the embodiments of this application;

[0018] Figure 3A schematic diagram of the valve linkage mechanism in the self-regulating pressure device inside the lateral landing bladder of the heavy-duty airdrop buffer airbag provided in this application embodiment;

[0019] Figure 4 A schematic diagram of the structure of the self-regulating device for the pressure inside the lateral landing bag of the heavy equipment airdrop buffer airbag provided in this application embodiment when connected to heavy equipment and airdropped using a parachute.

[0020] Figure 5 A schematic diagram of the structure of the self-regulating device for the pressure inside the lateral landing bag of the heavy equipment airdrop buffer airbag provided in this application embodiment when connected to heavy equipment and airdropped by parachute.

[0021] Figure 6 A partial perspective view of the structure of the self-adjusting pressure device inside the lateral landing bag of the heavy equipment airdrop buffer airbag provided in this application embodiment when connected to heavy equipment and airdropped by parachute.

[0022] Figure 7 This is a perspective structural diagram of the self-adjusting pressure device inside the lateral landing chamber of the heavy-duty airdrop buffer airbag, provided in another embodiment of this application, during landing.

[0023] In the diagram: 100, base plate; 110, top plate; 120, buffer airbag; 130, air inlet; 140, exhaust outlet; 150, partition cloth; 160, left airbag; 170, right airbag; 180, connecting port; 200, valve linkage mechanism; 210, door frame; 220, valve shaft; 230, valve; 240, bolt shaft; 250, tension spring; 260, linkage cable; 270, cable swing seat; 280, cable mounting seat; 290, valve bolt; 300, heavy equipment; 310, parachute. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The features and performance of the self-adjusting device and method for the pressure inside the lateral landing bladder of the heavy-duty airdrop buffer airbag of this application are further described in detail below with reference to the embodiments.

[0032] Example 1

[0033] like Figure 2 and Figure 3 As shown, this application embodiment provides a pressure self-regulating device for the lateral landing bag of a heavy-duty airdrop buffer airbag, which includes a base plate 100, a top plate 110, a bottom plate, a buffer airbag 120 connected to the bottom plate 100 and the top plate 110 respectively, and a partition cloth 150 disposed in the buffer airbag 120. The base plate 100 is provided with two air inlets 130 communicating with the buffer airbag 120. Each side wall of the buffer airbag 120 is provided with an exhaust port 140. The partition cloth 150 divides the buffer airbag 120 into a left airbag 160 and a right airbag 170. The left airbag 160 and the right airbag 170 are respectively connected to an air inlet 130 and an exhaust port 140. The partition cloth 150 is provided with a connecting port 180. A valve linkage mechanism 200 is connected to the connecting port 180 and the two exhaust ports 140 respectively.

[0034] The valve linkage mechanism 200 includes a door frame 210 mounted on the corresponding connection port 180 or exhaust port 140, a valve shaft 220 rotatably connected to the door frame 210, a valve 230 connected to the valve shaft 220, a bolt shaft 240 connected to the door frame 210, two valve bolts 290 rotatably connected to both ends of the bolt shaft 240, two tension springs 250 with one end connected to the door frame 210, two linkage steel cables 260, steel cable swing seats 270 corresponding to each linkage steel cable 260, and steel cable mounting seats 280 corresponding to each steel cable swing seat 270. When the valve 230 is subjected to force, it rotates around the valve shaft 220 to open the corresponding connection port 180 or exhaust port 140. The other ends of the two tension springs 250 are respectively connected to one end of the two valve bolts 290, and the other ends of the two valve bolts 290 are respectively connected to one end of the valve shaft 220. Two linkage steel cables 260 are connected at one end, and the bottom end of each steel cable swing seat 270 is connected to one end of the corresponding steel cable mounting seat 280. The other ends of the two linkage steel cables 260 slide through the top of the corresponding steel cable swing seat 270 and are connected to the other end of the corresponding steel cable mounting seat 280. Each steel cable swing seat 270 is arranged perpendicularly to the corresponding connected steel cable mounting seat 280. The steel cable swing seat 270 and the corresponding connected steel cable mounting seat 280 and the corresponding linkage steel cable 260 form a right triangle. The two steel cable mounting seats 280 of the valve linkage mechanism 200 corresponding to the connecting port 180 are respectively connected to the bottom plates 100 on both sides of the partition cloth 150. The two steel cable mounting seats 280 of the valve linkage mechanism 200 corresponding to the exhaust port 140 are respectively connected to the top plates 110 on both the inner and outer sides of the buffer airbag 120.

[0035] When the top plate 110 is tilted to one side relative to the bottom plate 100, the partition cloth 150 causes one of the linkage cables 260 in the valve linkage mechanism 200 corresponding to the connecting port 180 to stretch the valve bolt 290 to rotate, so that the valve bolt 290 is rotated to a vertical position to prevent the corresponding valve 230 from rotating only in one direction toward the tilted side; when the top plate 110 is tilted to one side relative to the bottom plate 100, the top plate 110 causes one of the linkage cables 260 in the valve linkage mechanism corresponding to the two exhaust ports 140 to stretch the valve bolt 290 to rotate, so that the valve bolt 290 is rotated to a vertical position to prevent and limit the corresponding valve 230 from rotating only in one direction away from the tilted side.

[0036] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this application embodiment also provides a method for self-adjusting the pressure inside the lateral landing chamber of a heavy-duty airdrop buffer airbag, which uses the aforementioned self-adjusting device for the pressure inside the lateral landing chamber of a heavy-duty airdrop buffer airbag, and includes the following steps:

[0037] The top plate 110 of the self-regulating device of the air-dropped buffer airbag lateral landing bag is installed at the bottom of the air-dropped heavy equipment 300, and the heavy equipment 300 is air-dropped using a parachute 310 that provides a stable descent speed.

[0038] When the heavy equipment 300 lands, the self-regulating pressure device inside the lateral landing airbag of this embodiment lands first. At this time, the self-regulating pressure device inside the lateral landing airbag of the heavy equipment airdrop lands laterally with a certain horizontal and vertical velocity, contacting the ground. The base plate 100 contacts the ground first and remains stationary due to friction, causing the airbag 120 and top plate 110 to tilt to one side relative to the base plate 100. At this time, the heavy equipment 300 touches the ground. The side airbag 120 poses a risk of overturning the heavy equipment 300. By adding a partition fabric 150 in the middle of the airbag 120, the airbag 120 is divided into a left airbag 160 and a right airbag 170. When the top plate 110 tilts to the right relative to the bottom plate 100, the partition fabric 150 causes a linkage cable 260 on the left side of the valve linkage mechanism 200 corresponding to the connecting port 180 to stretch the corresponding valve bolt 290 to rotate, so that the valve bolt 290 is rotated to a vertical position to prevent it from tipping over. The corresponding valve 230 cannot rotate to the left, but can only rotate to the right, i.e., to the tilted side. At the same time, the top plate 110 drives the right-hand linkage cable 260 of the valve linkage mechanism of the two exhaust ports 140 to stretch the corresponding valve bolt 290 to rotate, so that the valve bolt 290 rotates to a vertical position to block and limit the corresponding valve 230 from rotating to the right, i.e., to the left, away from the tilted side. Therefore, when the top plate 110 is tilted to one side relative to the bottom plate 100, the linkage mechanism of the three corresponding valves is activated, so that the left airbag 160 can take in air from the bottom air inlet 130 and exhaust air from the exhaust port 140 normally. However, the right airbag 170 cannot push the valve 230 on the connecting port 180 to rotate to the left to open, nor can it push the valve 230 on the exhaust port 140 to rotate to the right to open. This closes the tilted right airbag 170 to maintain pressure and improve the buffer performance of the tilted side of the buffer airbag 120, thus avoiding the phenomenon of overturning and reloading equipment.

[0039] The two ends of the two tension springs 250 are respectively connected to the two valve plugs 290 and the door frame 210. When landing, the top plate 110 tilts to the right relative to the bottom plate 100, which causes the linkage cable 260 to stretch and the corresponding valve plug 290 to rotate, thus stretching the corresponding tension spring 250. After landing, the buffering force of the buffer airbag 120 causes the top plate 110 to return to its original position relative to the bottom plate 100. The stretched tension spring 250 drives the valve plug 290 to rotate in the opposite direction to return to its original position and stop blocking the corresponding valve 230.

[0040] This application also provides a method for self-regulating the pressure inside the lateral landing chamber of a heavy-duty airdrop buffer airbag, which is performed using the aforementioned self-regulating device for the pressure inside the lateral landing chamber of a heavy-duty airdrop buffer airbag, and includes the following steps:

[0041] The heavy equipment is fixed at the bottom to the top surface of the pressure self-regulating device in the side landing bladder of the heavy equipment airdrop buffer airbag for airdrop. During airdrop, the heavy equipment and the pressure self-regulating device in the side landing bladder of the heavy equipment airdrop buffer airbag descend and move to one side at a horizontal speed. When the top plate 110 tilts to one side relative to the bottom plate 100, it drives the corresponding valve linkage mechanism to limit the corresponding valve 230 of the communication port 180 to rotate only in one direction towards the tilted side and limit the corresponding valve 230 of the exhaust port 140 to rotate only in one direction away from the tilted side. This allows gas to enter the left airbag 160 and the right airbag 170 through the air inlet 130 respectively. The air pressure in the left airbag 160 and the right airbag 170 increases, and pushes the corresponding valve 230 to close the corresponding airbag closer to the tilted side, allowing the gas in the corresponding airbag away from the tilted side to be discharged.

[0042] In other alternative embodiments, such as Figure 7 As shown, the self-regulating pressure device inside the lateral landing bag of the heavy-duty air-drop buffer airbag can also be provided with two rows of air inlets 130 connected to the buffer airbag 120 on the base plate 100. Each row includes four air inlets 130. The two side walls of the buffer airbag 120 are respectively provided with a row of four exhaust ports 140. The partition cloth 150 divides the buffer airbag 120 into a left airbag 160 and a right airbag 170. The left airbag 160 and the right airbag 170 are respectively connected to the four air inlets 130 and the four exhaust ports 140. The partition cloth 150 is provided with four connecting ports 180. The four connecting ports 180 and the eight exhaust ports 140 are respectively connected to valve linkage mechanisms 200. The two rows of air inlets 130, the four connecting ports 180 and the two rows of exhaust ports 140 are arranged at intervals along the length of the buffer airbag 120.

[0043] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A pressure self-regulating device for the lateral landing bladder of a heavy-duty airdrop buffer airbag, characterized in that, It includes a base plate, a top plate, a bottom plate, and a buffer airbag connected to the base plate and the top plate respectively, and a partition cloth disposed within the buffer airbag. The base plate has at least two air inlets communicating with the buffer airbag, and the side wall of the buffer airbag has at least two exhaust ports. The partition cloth divides the buffer airbag into a left airbag and a right airbag. The left airbag and the right airbag are respectively connected to at least one air inlet and at least one exhaust port. The partition cloth has at least one connecting port. The connecting port and the exhaust port are respectively connected to a valve linkage mechanism. The valve linkage mechanism includes a valve that can be rotated to open and close a valve corresponding to the connecting port or the exhaust port. When the top plate is tilted to one side relative to the base plate, it drives the corresponding valve linkage mechanism to limit the valve corresponding to the connecting port to rotate only unidirectionally toward the tilted side, and limits the valve corresponding to the exhaust port to rotate only unidirectionally away from the tilted side.

2. The self-regulating pressure device within the lateral landing bladder of the heavy-duty airdrop buffer airbag according to claim 1, characterized in that, The valve linkage mechanism includes a door frame, a valve rotatably connected to the top of the door frame via a valve shaft, a bolt shaft connected to the bottom of the door frame, two valve bolts rotatably connected to both ends of the bolt shaft, two tension springs with one end connected to the door frame, two linkage cables, cable swing seats corresponding to each linkage cable, and cable mounting seats corresponding to each cable swing seat. The other ends of the two tension springs are respectively connected to one end of the two valve bolts, and the other ends of the two valve bolts are respectively connected to one end of the two linkage cables. The bottom end of each cable swing seat is connected to the corresponding cable mounting seat. At one end, the other ends of the two linkage steel cables slide through the top of the corresponding steel cable swing seat and are connected to the other end of the corresponding steel cable mounting seat; the connecting port is connected to the steel cable mounting seat of the valve linkage mechanism to the bottom plate, and the exhaust port is connected to the steel cable mounting seat of the valve linkage mechanism to the top plate; when the top plate is tilted to one side relative to the bottom plate, the partition cloth or the top plate respectively drives one of the linkage steel cables of the corresponding valve linkage mechanism to stretch the valve bolt to rotate, so as to block and limit the corresponding valve to rotate only in one direction towards the tilted side or away from the tilted side.

3. The self-regulating pressure distribution device within the lateral landing bladder of the heavy-duty airdrop buffer airbag according to claim 1, characterized in that, Each cable swing seat is arranged perpendicularly to the corresponding connected cable mounting seat.

4. The self-regulating pressure device within the lateral landing bladder of the heavy-duty airdrop buffer airbag according to claim 1, characterized in that, The buffer airbag is provided with at least one exhaust port on each side.

5. The self-regulating pressure device within the lateral landing bladder of the heavy-duty airdrop buffer airbag according to claim 1, characterized in that, The number of air inlets, air outlets, and connecting ports is two or more, and they are arranged at intervals along the length of the buffer airbag.

6. A method for self-regulating the pressure inside the lateral landing bladder of a heavy-duty airdrop buffer airbag, characterized in that, It is carried out using the self-regulating pressure device inside the lateral landing bladder of the heavy-duty airdrop buffer airbag as described in any one of claims 1 to 5, and includes the following steps: The heavy equipment is fixed at its bottom to the top surface of the pressure self-regulating device inside the side landing bladder of the heavy equipment airdrop buffer airbag for airdrop. During airdrop, the heavy equipment and the pressure self-regulating device inside the side landing bladder of the heavy equipment airdrop buffer airbag descend and move to one side at a horizontal speed. When the top plate tilts to one side relative to the bottom plate, it drives the corresponding valve linkage mechanism to limit the valve of the connecting port to rotate only in one direction towards the tilted side and to limit the valve of the exhaust port to rotate only in one direction away from the tilted side. This allows gas to enter the left and right airbags through the air inlets, increasing the air pressure inside the left and right airbags and pushing the corresponding valves to close the corresponding airbags closer to the tilted side, allowing the gas in the corresponding airbags away from the tilted side to be discharged.

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