Airdrop landing cushion device

Abstract

The present invention discloses an aerial object landing buffer device, comprising: a basic frame, the upper end of which is provided with a bonding surface, the bonding surface is used for being attached and fixed to the bottom of a fixing device for the aerial object; an air bag, which is attached to the inside of the basic frame and is located below the bonding surface, the air bag comprising a disc-shaped component with a first air cavity and a plurality of finger-shaped parts formed at the bottom of the disc-shaped component and each having a second air cavity, each of the finger-shaped parts being arranged vertically, and the second air cavity of each finger-shaped part being connected to the first air cavity of the disc-shaped component; at least one of the finger-shaped parts is provided with an exhaust valve with an air jet hole facing downward at the lower end, and when the aerial object lands with the fixing device, the exhaust valve is opened so that the gas in the air bag is ejected toward the ground through the air jet hole of the exhaust valve to participate in buffering the aerial object.

Description

Technical Field

[0001] The invention relates to the technical field of aircraft dropping, and in particular to an airdrop landing buffer device for dropping airdrops to the ground. Background Art

[0002] As is known, when equipment such as a fuel barrel is used as an airdrop, a landing cushioning device needs to be configured at the bottom of the fuel barrel to cushion the fuel barrel when it lands, thereby reducing the risk of damage to the fuel barrel due to impact when landing.

[0003] In the prior art, a cushioning airbag is usually installed at the bottom of the airdrop. Specifically, a certain pressure of gas is filled in the cushioning airbag. When the airdrop lands, the airbag has a cushioning effect on the airdrop through elastic deformation and compressed gas. However, a typical defect of using the airbag as a cushioning component is that the airdrop is prone to rollover. The reason is that the airbag will reset after the compressed gas and elastic deformation. The reset process of the airbag will cause the airdrop to move upward in the opposite direction, thereby causing the airdrop to bounce and then easily roll over.

[0004] To solve this problem, in the prior art, an exhaust valve is arranged on the airbag. During the landing process of the aerial drop, when the aerial drop compresses the gas in the airbag and causes the gas pressure to rise to a certain level, the exhaust valve opens to discharge part of the gas in the airbag, thereby reducing the amount of gas in the airbag, thereby reducing the airbag's reset ability, and thus being able to suppress the bouncing of the aerial drop to a certain extent.

[0005] However, the above-mentioned airbag equipped with an exhaust valve has the following shortcomings in terms of cushioning effect:

[0006] Exhaust from the exhaust valve will affect the cushioning effect of the airbag to a certain extent. The reason is that the exhaust valve may be over-exhausted, which will reduce the airbag's resistance to airdrops. As a result, the airbag may be flattened before the speed of the airdrop is reduced to 0, causing the ground to directly bear the deceleration process of the remaining speed of the airdrop, causing the airdrop to be directly impacted by the ground in the later stage of landing, thereby affecting the cushioning effect. Summary of the invention

[0007] In view of the above-mentioned technical problems existing in the prior art, the present invention provides an aerial drop landing buffer device.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] An airdrop landing buffer device, the airdrop landing buffer device comprising a plurality of airdrop landing buffer devices, the plurality of airdrop landing buffer devices being arranged at intervals at the bottom of an airdrop fixing device, the airdrop landing buffer devices each comprising:

[0010] A basic frame, the upper end of which has a bonding surface, the bonding surface being used to be attached and fixed to the bottom of the fixing device for the airdropped object;

[0011] An air bag, which is attached to the base frame and located below the joint surface, comprises a disc-shaped component having a first air cavity and a plurality of finger-shaped portions formed at the bottom of the disc-shaped component and each having a second air cavity, each of the finger-shaped portions being arranged vertically, and the second air cavity of each of the finger-shaped portions being connected to the first air cavity of the disc-shaped component; wherein:

[0012] The lower end of at least one of the finger-shaped parts is equipped with an exhaust valve with a jet hole facing downward. When the aerial object lands with the fixing device, the exhaust valve opens to allow the gas in the airbag to be ejected toward the ground through the jet hole of the exhaust valve to help cushion the aerial object.

[0013] Preferably, the finger-shaped portion comprises: a plurality of anti-collision finger-shaped portions arranged circumferentially and a plurality of air-jet finger-shaped portions arranged circumferentially;

[0014] The exhaust valve is mounted on the lower end of each of the air-injection fingers;

[0015] The lower end of the anti-collision finger-shaped portion is lower than the lower end of the air-jet finger-shaped portion;

[0016] When the aerial object lands with the fixing device, the anti-collision finger-shaped portion first contacts the ground and is compressed and retracted. After the compressed and retracted anti-collision finger-shaped portion causes the air pressure in the airbag to increase and forces the exhaust valve to open, the gas in the airbag is ejected toward the ground through the jet hole to participate in cushioning the aerial object.

[0017] Preferably, the anti-collision finger-like portion comprises a plurality of circumferentially arranged circles, and the lower ends of the anti-collision finger-like portions located in the outer circle are lower than the lower ends of the anti-collision finger-like portions located in the inner circle.

[0018] Preferably, the aerial object landing cushioning device also includes a retaining disk, which is provided with an axially through-hole, and the anti-collision finger-shaped portion and the jet finger-shaped portion are correspondingly provided with the through-hole, and the lower end of the anti-collision finger-shaped portion passes through the through-hole, and the lower part of the anti-collision finger-shaped portion is configured as a bellows section so that the anti-collision finger-shaped portion is axially retracted and deformed at the bellows section during contact with the ground.

[0019] Preferably, a spirally extending separation groove is provided on the retaining disk to enable the retaining disk to be axially retractable.

[0020] Preferably, the basic skeleton includes a plate-like body and a wall forming an annular structure around the plate-like body; the upper surface of the plate-like body forms the bonding surface; the wall includes a plurality of curved portions formed by reciprocating bending, and annular capsule rods are provided on the inner and outer sides of the curved portions.

[0021] Preferably, the bottom of the wall forms a support disc with a radial outer edge.

[0022] Preferably, the exhaust valve comprises a metal joint and a rubber valve core; the metal joint is attached to the lower end of the air jet finger-shaped portion, an inner hole of the metal joint forms an air jet hole, and the rubber valve core can detachably block the air jet hole.

[0023] Preferably, the annular capsule rod is a hollow capsule rod.

[0024] Preferably, the lower end surface of the anti-collision finger-shaped portion is configured as a flat surface.

[0025] Compared with the prior art, the airdrop landing buffer device disclosed in the present invention has the following beneficial effects:

[0026] The present invention provides an air jet finger and an anti-collision finger on the airbag, and provides an exhaust valve with an air jet hole facing the ground at the lower end of the air jet finger. During the landing of the airdrop, the exhaust valve opens to allow the gas in the airbag to be ejected toward the ground. In this way, the gas ejected from the exhaust valve is not only used to prevent the airbag from resetting, but more importantly, participates in buffering the airdrop, so as to suppress the speed of the airdrop, so as to avoid the speed of the airdrop being suppressed directly by contacting the ground, thereby avoiding as much as possible the airdrop from being directly impacted by the ground in the later stage of landing.

[0027] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

[0028] This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the invention. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0030] Figure 1 This is a front view of the installed state of the buffer device provided by the present invention.

[0031] Figure 2 The figure is a schematic three-dimensional structure diagram of the buffer device provided by the present invention from one viewing angle.

[0032] Figure 3 This is a schematic diagram of the three-dimensional structure of the buffer device provided by the present invention from another perspective.

[0033] Figure 4 This is a main cross-sectional view of the buffer device provided by the present invention.

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the airbag in the buffer device provided by the present invention.

[0035] Figure 6 This is a first state view of the cushioning device provided by the present invention when landing.

[0036] Figure 7 This is a second state view of the cushioning device provided by the present invention when it lands.

[0037] Reference numerals:

[0038] 100-buffer device; 200-fixing device; 201-binding strap; 300-airdropped object; 400-ground; 10-basic skeleton; 11-plate-like body; 111-joining surface; 112-threaded blind hole; 12-wall; 121-bend; 122-support plate; 20-airbag; 21-disc-shaped component; 22-anti-impact finger; 221-bellows section; 23-jet finger; 24-exhaust valve; 241-metal joint; 242-rubber valve core; 243-jet hole; 251-first air cavity; 252-second air cavity; 30-retaining plate; 31-partition groove; 40-annular capsule rod. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0042] like Figure 1 As shown, the present invention discloses a landing cushioning device 100 for an airdrop 300, which is used to cushion the airdrop 300 when the airdrop 300, such as a fuel barrel, lands. Generally, the airdrop 300 is fixed on a fixing device 200, for example, the airdrop 300 is fixed on a fixing device 200 having a support plate by a strap 201. A plurality of cushioning devices 100 are fixed to the bottom of the support plate of the fixing device 200, and the plurality of cushioning devices 100 are arranged at intervals, and the plurality of cushioning devices 100 are preferably arranged along the edge of the support plate of the fixing device 200.

[0043] like Figures 2 to 5 As shown, the buffer device 100 includes: a basic frame 10, a retaining plate 30, and an airbag 20. The basic frame 10 includes a plate-like body 11 and a wall 12. The wall 12 is located below the plate-like body 11, and the wall 12 surrounds the plate-like body 11 to form an annular structure. The thickness of the wall 12 is significantly smaller than the thickness of the plate-like body 11. The upper plate surface of the plate-like body 11 is processed into a flat joint surface 111, and a threaded blind hole 112 is provided on the joint surface 111. The joint surface 111 is used to fit with the bottom of the support plate of the fixing device 200, and the basic frame 10 is fixedly connected with the fixing device 200 by passing the threaded blind hole 112 on the support plate and the joint surface 111 through bolts, so that the buffer device 100 is fixed to the bottom of the fixing device 200. Preferably, the plate-like body 11 and the wall 12 of the basic frame 10 are integrally processed and formed, and the basic frame 10 can be made of high-elastic alloy steel or high-elastic carbon fiber material.

[0044] The airbag 20 is made of a flexible material with a certain elasticity, for example, a silicone material or a rubber material. The airbag 20 is arranged in the internal space enclosed by the wall 12 of the basic frame 10. The airbag 20 includes a disc-shaped part 21 and a plurality of finger-shaped parts. The finger-shaped parts are formed at the bottom of the disc-shaped part 21, and the finger-shaped parts are arranged in multiple circles along the circumferential direction. Moreover, each finger-shaped part is arranged vertically. The bottom of the disc-shaped part 21 is bonded and fixed to the lower plate surface of the plate-shaped body 11 of the basic frame 10. The inside of the disc-shaped part 21 has a flat columnar first air cavity 251, and the inside of each finger-shaped part has a long columnar second air cavity 252. The second air cavity 252 of each finger-shaped part is connected to the first air cavity 251. In this way, if the finger-shaped part retracts in the axial direction, the pressure in the air cavity will increase. Preferably, the finger-shaped part of the airbag 20 and the plate-shaped body 11 are integrally processed and formed by a blow molding process.

[0045] The retaining plate 30 is disposed in the internal space enclosed by the wall 12 of the base frame 10. The retaining plate 30 is provided with a plurality of circumferentially arranged perforations, which are arranged in multiple circles and correspond one to one with the finger-shaped parts of the airbag 20. The finger-shaped parts correspond to the perforations of the retaining plate 30, and the retaining plate 30 is provided with a spirally extending separation groove 31 so that the retaining plate 30 can be axially extended. The retaining plate 30 is used to limit the radial expansion of the finger-shaped parts with the perforations, and to ensure that the finger-shaped parts remain in a vertical state without bending when subjected to axial force. Preferably, the retaining plate 30 is made of a lightweight material, such as a carbon fiber material.

[0046] In the present invention:

[0047] The finger-shaped portion includes circumferentially arranged anti-collision finger-shaped portions 22 and circumferentially arranged air-jet finger-shaped portions 23; the anti-collision finger-shaped portions 22 include multiple circles, the air-jet finger-shaped portions 23 include at least one circle, and the air-jet finger-shaped portions 23 are located between the anti-collision finger-shaped portions 22 of the outer circle and the anti-collision finger-shaped portions 22 of the outer circle.

[0048] The lower end of the anti-collision finger 22 is lower than the lower end of the jet finger 23. Further, the lower end of the anti-collision finger 22 is lower than the lower end of the wall 12 of the base frame 10. The lower end of the jet finger 23 is basically flush with the lower disk surface of the retaining disk 30. Therefore, during the landing of the airdrop 300 with the fixing device 200, the lower end of the anti-collision finger 22 first contacts the ground 400.

[0049] The lower end of each jet finger 23 is provided with an exhaust valve 24, which includes a metal joint 241 and a rubber valve core 242. The metal joint 241 is attached to the lower end of the jet finger 23. The metal joint 241 has a tube hole, which faces downward and communicates with the second air cavity 252. The tube hole serves as an air hole 243. The rubber valve core 242 is sealed on the metal joint 241, and the matching relationship between the rubber valve core 242 and the metal joint 241 is configured as follows: after the air pressure in the first air cavity 251 increases to a certain level, the gas in the first air cavity 251 can force the rubber valve core 242 to separate from the metal joint 241, thereby opening the air hole 243. Such a matching relationship can be obtained by, for example, forming an interference fit between the rubber valve core 242 and the tube hole of the metal joint 241, so that a certain pre-tightening force exists between the rubber valve core 242 and the metal joint 241, and the rubber valve core 242 is forced to separate from the metal joint 241 by overcoming the pre-tightening force. For another example, a certain bonding force is formed between the cap of the rubber valve core 242 and the end surface of the metal joint 241, and the rubber valve core 242 is forced to separate from the metal joint 241 by overcoming the bonding force. For another example, a metal safety rope that can be broken is provided between the rubber valve core 242 and the metal joint 241, and the rubber valve core 242 is separated from the metal joint 241 by breaking the metal safety rope.

[0050] The lower part of the anti-collision finger 22, that is, the pipe section of the anti-collision finger 22 located below the retaining plate 30, is configured as a corrugated pipe section 221. When the airdrop 300 lands with the fixing device 200, after the anti-collision finger 22 contacts the ground 400, the axial retraction of the anti-collision finger 22 occurs in the corrugated pipe section 221, while other pipe sections do not retract. Preferably, the lower end surface of the anti-collision finger 22 is configured as a flat surface, so as to facilitate the strict axial retraction of the corrugated pipe section 221 without bending. More preferably, the radial dimension of the lower end surface of the anti-collision finger 22 is greater than the radial dimension of the pipe sections at other positions.

[0051] The lower end of the anti-collision finger 22 located on the outer ring is lower than the lower end of the anti-collision finger 22 located on the inner ring, so that the anti-collision finger 22 located on the outer ring contacts the ground 400 before the anti-collision finger 22 located on the inner ring, which is beneficial to improve the stability during landing and improve the continuity of the buffering of the airdropped object 300 during the landing process.

[0052] The working process of the above-mentioned buffer device 100 when the airdropped object 300 lands is introduced below.

[0053] like Figure 6As shown, during the landing of the aerial object 300 along with the fixing device 200, the lower end of the anti-collision finger-shaped portion 22 located on the outer ring first contacts the ground 400, and the bellows section 221 of the anti-collision finger-shaped portion 22 located on the outer ring retracts axially to cushion the aerial object 300. Subsequently, the lower end of the anti-collision finger-shaped portion 22 located on the inner ring contacts the ground 400 and the bellows section 221 thereof retracts, thereby continuously cushioning the aerial object 300.

[0054] The axial retraction of the bellows section 221 of the anti-collision finger 22 increases the pressure of the gas in the airbag 20. As the pressure of the gas increases, the gas in the airbag 20 forces the rubber valve core 242 of the exhaust valve 24 at the lower end of the jet finger 23 to separate from the metal joint 241, thereby opening the jet hole 243. Figure 7 As shown, the gas in the airbag 20 is sprayed toward the ground 400 through the jet hole 243. The sprayed gas participates in buffering the airdrop 300 and decelerating the airdrop 300. Moreover, since the amount of gas in the airbag 20 is reduced after the gas is sprayed, the reset ability of the airbag 20 is greatly reduced, thereby being able to effectively suppress the bounce of the airdrop 300 after landing, thereby greatly reducing the probability of the airdrop 300 flipping over.

[0055] Since the exhaust valve 24 is opened, the airbag 20 eventually loses its restoring ability, and thus, the lower end of the base frame 10 is eventually supported on the ground 400 .

[0056] The buffer device 100 provided by the present invention has at least the following advantages:

[0057] The present invention provides an air jet finger 23 and an anti-collision finger 22 on the airbag 20, and provides an exhaust valve 24 with an air jet hole 243 facing the ground 400 at the lower end of the air jet finger 23. During the landing of the airdrop 300, the exhaust valve 24 opens to allow the gas in the airbag 20 to be ejected toward the ground 400. In this way, the gas ejected from the exhaust valve 24 is not only used to prevent the airbag 20 from resetting, but more importantly, participates in buffering the airdrop 300, so as to suppress the speed of the airdrop 300, so as to avoid the speed of the airdrop 300 being suppressed directly by contacting the ground 400, thereby avoiding as much as possible the airdrop 300 being directly impacted by the ground 400 in the later stage of landing.

[0058] In some preferred embodiments, the wall 12 of the base frame 10 includes a plurality of curved portions 121 formed by reciprocating bending, and an annular capsule rod 40 is provided on the inner and outer sides of the curved portions 121, so that the wall 12 of the base frame 10 has a certain axial elastic deformation ability and reset ability. During the landing process of the airdrop 300 with the fixing device 200, if the gas ejected from the lower end of the jet finger 23 ultimately fails to suppress the speed of the airdrop 300 to 0, the bottom of the wall 12 of the base frame 10 then contacts the ground 400, so that the wall 12 participates in the buffering of the airdrop 300 by axial retraction, thereby participating in suppressing the speed of the airdrop 300. Preferably, the annular capsule rod 40 is a hollow capsule rod.

[0059] It should be noted that the elastic deformation stiffness of the wall 12 is made smaller than the initial deformation stiffness of the bellows section 221 of the anti-collision finger 22, thereby reducing the resetting ability of the wall 12 as much as possible, so as to avoid the resetting of the wall 12 causing the aerial object 300 to bounce.

[0060] In some more preferred embodiments, a radially outer support plate 122 is formed at the bottom of the wall 12. After the wall 12 is reset, the support plate 122 is finally supported on the ground 400, thereby achieving stable support for the airdrop 300 and the fixing device 200.

[0061] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the implementation of this application, and their examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0062] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. For example, a person of ordinary skill in the art can use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features can be grouped together to simplify the present invention. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all the features of a specific disclosed embodiment. Thus, the following claims are incorporated into the specific embodiments as examples or embodiments, wherein each claim is independently used as a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present invention should be determined with reference to the attached claims and the full scope of equivalent forms granted by these claims.

[0063] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A landing cushion device for airdrops, characterized in that: The aerial object landing buffer device includes a plurality of aerial object landing buffer devices, which are arranged at intervals at the bottom of the aerial object fixing device, and each of the aerial object landing buffer devices includes: A basic frame, the upper end of which has a bonding surface, the bonding surface being used to be attached and fixed to the bottom of the fixing device for the airdropped object; An air bag, which is attached to the base frame and located below the joint surface, comprises a disc-shaped component having a first air cavity and a plurality of finger-shaped portions formed at the bottom of the disc-shaped component and each having a second air cavity, each of the finger-shaped portions being arranged vertically, and the second air cavity of each of the finger-shaped portions being connected to the first air cavity of the disc-shaped component; wherein: An exhaust valve with a downwardly directed jet hole is installed at the lower end of at least one of the finger-shaped parts. When the aerial object lands with the fixing device, the exhaust valve opens so that the gas in the airbag is ejected toward the ground through the jet hole of the exhaust valve to help cushion the aerial object. The finger-shaped parts include: a plurality of anti-collision finger-shaped parts arranged circumferentially and a plurality of air-jet finger-shaped parts arranged circumferentially; The exhaust valve is mounted on the lower end of each of the air-injection fingers; The lower end of the anti-collision finger-shaped portion is lower than the lower end of the air-jet finger-shaped portion; When the aerial object lands with the fixing device, the anti-collision finger first contacts the ground and is compressed and retracted. After the compression and retraction of the anti-collision finger increases the air pressure in the airbag and forces the exhaust valve to open, the gas in the airbag is ejected toward the ground through the air jet hole to help cushion the aerial object. The anti-collision finger-like portion comprises a plurality of circumferentially arranged circles, and the lower end of the anti-collision finger-like portion located in the outer circle is lower than the lower end of the anti-collision finger-like portion located in the inner circle; The aerial object landing buffer device also includes a retaining plate, the retaining plate is provided with an axially penetrating through hole, the anti-collision finger-shaped portion and the jet finger-shaped portion are correspondingly provided with the through hole, and the lower end of the anti-collision finger-shaped portion passes through the through hole, and the lower part of the anti-collision finger-shaped portion is configured as a corrugated tube section so that the anti-collision finger-shaped portion axially retracts and deforms at the corrugated tube section during contact with the ground; The retaining disk is provided with a spirally extending separation groove so that the retaining disk can be axially retracted; The basic skeleton includes a plate-like body and a wall forming an annular structure around the plate-like body; the upper plate surface of the plate-like body forms the bonding surface; the wall includes a plurality of curved portions formed by reciprocating bending, and annular capsule rods are provided on the inner and outer sides of the curved portions.

2. The airdrop landing buffer device according to claim 1, characterized in that: The bottom of the wall forms a support disc with a radial outer edge.

3. The airdrop landing buffer device according to claim 1, characterized in that: The exhaust valve comprises a metal joint and a rubber valve core; the metal joint is attached to the lower end of the air-injection finger-shaped portion, the inner hole of the metal joint forms an air-injection hole, and the rubber valve core can detachably block the air-injection hole.

4. The airdrop landing buffer device according to claim 1, characterized in that: The annular capsule rod is a hollow capsule rod.

5. The airdrop landing buffer device according to claim 1, characterized in that: The lower end surface of the anti-collision finger-shaped portion is configured as a flat surface.

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