阅读说明：本技术 一种空投着陆缓冲装置 (Air-drop landing buffer device ) 是由 钟俊杰 王宏 贺五一 刘胜祥 杨佳琳 张帆 于 2021-06-25 设计创作，主要内容包括：本发明提供了一种空投着陆缓冲装置,包括带有气孔的气囊和设置在气囊内可折叠的骨架,所述骨架设置在气囊的内壁上；气囊在下落过程中自动充气展开后,骨架被打开并在气囊的上表面形成具有一定强度的支撑面。本发明具有气囊缓冲和高强度材料缓冲的双重作用,可以大大提高缓冲效果,可以更好地保护物资在空投过程中不受损坏。(The invention provides an air-drop landing buffer device which comprises an air bag with an air hole and a foldable framework arranged in the air bag, wherein the framework is arranged on the inner wall of the air bag; after the air bag is automatically inflated and unfolded in the falling process, the framework is unfolded and a supporting surface with certain strength is formed on the upper surface of the air bag. The invention has the double functions of air bag buffering and high-strength material buffering, can greatly improve the buffering effect, and can better protect the goods and materials from being damaged in the air-drop process.)

1. An air-drop landing buffer device is characterized by comprising an air bag with an air hole and a foldable framework arranged in the air bag, wherein the framework is arranged on the inner wall of the air bag; after the air bag is automatically inflated and unfolded in the falling process, the framework is unfolded and a supporting surface with certain strength is formed on the upper surface of the air bag.

2. The aerial drop landing buffer device of claim 1, wherein the skeleton is folded to form a regular structure.

3. The airdrop landing buffer device of claim 2, wherein when the frame is in a folded state, the frame is in a line-shaped planar structure and is arranged close to the inner side of the upper surface of the airbag; the skeleton receives the action of gravity in the falling process, and a part of structure of skeleton forms the support face that has certain intensity on the upper surface of gasbag, and the remaining part is used for providing intensity for the support face and supports.

4. The aerial drop landing buffer device of any one of claims 1 to 3, wherein the framework is a downward-opening U-shaped structure, the left and right parts of the U-shaped structure are symmetrically arranged on two sides of the middle part, and the left and right parts of the U-shaped structure are respectively rotatably connected with the middle part.

5. The airdrop landing buffer device of claim 4, wherein the framework is a steel frame structure, the steel frame structure is a horizontal plane structure made of linear steel, and two sides of the plane structure are vertical structures made of linear steel.

6. The airdrop landing buffer of any one of claims 1-3, wherein the air bag is made of fabric, plastic or other materials with certain strength and tightness.

7. The airdrop landing buffer device of any one of claims 1-3, wherein the airbag is of a square configuration after full deployment, the upper portion of the frame is connected to the edge of the upper surface of the airbag, and the frame is not in contact with the middle of the upper surface of the airbag.

8. The aerial drop landing buffer of any of claims 1-3, wherein said air vents are provided on the lower surface and/or sides of the air bag.

9. An airdrop landing buffer as claimed in any one of claims 1 to 3, wherein the air-bag is in an uninflated state when not deployed and is foldable with the frame into a "in-line" planar configuration.

Technical Field

The invention relates to the field of airborne air-drop of light goods and materials, in particular to an air-drop landing buffer device.

Background

When people who are trapped in emergency rescue, search and rescue and battlefield supply are carried out, due to the fact that the people cannot be close to the ground, materials need to be delivered from the air, under the condition, packaged edible materials such as mineral water, edible oil and dry food or medical materials such as first-aid kits, blood bags and instruments need to be directly purchased in the emergency market, most of the materials belong to small light materials, and low-altitude air delivery can be achieved. When a large amount of light materials are airdropped, an umbrella-free airdrop system is usually adopted for airdrop from the height of 50-200m, and the common umbrella-free airdrop systems are divided into two types: one is a system without an aerial reduction and the other is a system with an aerial reduction. The system without the aerial speed reducer mainly absorbs the energy of landing impact by means of structural parts of the airdrop container and attached buffer materials, and the system has the problems of high descending speed of materials, large landing impact, easiness in damage of the materials and limited application range. The system with the aerial speed reducer is provided with a small-sized fan cover, a speed reducing umbrella and other devices on an airdrop container, can reduce the speed in the descending process, is combined with an attached buffer device to reduce the landing impact, and is low in descending speed and favorable for reducing the damage to materials and the injury to ground personnel. From the above, it can be seen that: no matter which parachute-free air-drop system is provided with a landing buffer device. Most of the existing air-drop landing buffer devices adopt devices such as bubble cushions and air bags which only rely on gas for buffering, the buffering force is limited, and further the protection effect on materials is limited.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide an air-drop landing buffer device which has the double functions of air bag buffering and high-strength material buffering, can greatly improve the buffering effect and can better protect materials from being damaged in the air-drop process.

The technical scheme of the invention is as follows: an air-drop landing buffer device comprises an air bag with an air hole and a foldable framework arranged in the air bag, wherein the framework is arranged on the inner wall of the air bag; after the air bag is automatically inflated and unfolded in the falling process, the framework is unfolded and a supporting surface with certain strength is formed on the upper surface of the air bag.

The further technical scheme of the invention is as follows: the skeleton is folded to form a regular structure.

Further, when the framework is in a folded state, the framework is in a linear planar structure and is arranged close to the inner side of the upper surface of the air bag; the skeleton receives the action of gravity in the falling process, and a part of structure of skeleton forms the support face that has certain intensity on the upper surface of gasbag, and the remaining part is used for providing intensity for the support face and supports.

Furthermore, the framework is of a U-shaped structure with a downward opening, the left part and the right part of the U-shaped structure are symmetrically arranged on two sides of the middle part, and the left part and the right part of the U-shaped structure are respectively in rotatable connection with the middle part.

Further, the framework is of a steel frame structure, the steel frame structure is of a horizontal plane structure formed by linear steels, and two sides of the plane structure are of vertical structures formed by the linear steels respectively.

Furthermore, the air bag is made of fiber fabric, plastic products or other materials with certain strength and tightness.

Furthermore, the air bag is of a square structure after being completely unfolded, the upper part of the framework is connected with the edge of the upper surface of the air bag, and the framework is not in contact with the middle of the upper surface of the air bag.

Further, the air hole is provided on the lower surface and/or the side surface of the airbag.

Further, the air bag is in an uninflated state when not put in, and can be folded together with the framework to form a linear planar structure.

The invention has the beneficial effects that:

(1) the foldable framework in the air bag can not only decelerate through the buffering action of the air bag, but also can buffer the upper surface of the air bag by utilizing the strength of the material of the framework through the supporting action of the framework, so that the secondary deceleration is realized, the whole air-drop landing buffering device has a double deceleration process, the buffering effect can be greatly improved, and the goods and materials can be better protected from being damaged in the air-drop process;

(2) the framework can be folded and stored in the air bag, when the air bag is not airdropped, the size of the air bag cannot be excessively enlarged due to the existence of the framework, and the air bag is favorably stacked and stored due to the existence of the framework, so that the whole airdropped landing buffer device is not easy to scatter when being stored;

(3) the air-drop landing buffer device is simple in structure, low in cost and convenient to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the skeleton structure of the present invention.

Illustration of the drawings:

1. an air bag; 2. a framework; 3. and (4) air holes.

Detailed Description

The invention will be described in further detail below with reference to the drawings and specific examples.

As shown in fig. 1 and 2, the airdrop landing buffer device comprises an air bag 1 with air holes and a foldable framework 2 arranged in the air bag 1, wherein the framework 2 is arranged on the inner wall of the air bag 1; after the air bag 1 is automatically inflated and unfolded in the falling process, the framework 2 is opened, a supporting surface with certain strength is formed on the upper surface of the air bag 1, and the supporting surface can generate a certain buffering effect on air-dropped materials loaded on the supporting surface after the air-dropped landing buffering device is contacted with the ground.

In the embodiment, when the framework 2 is in a folded state, the framework 2 is in a linear planar structure and is arranged close to the inner side of the upper surface of the air bag 1, and when the framework 2 is not thrown, the size is small, so that the internal space of the air-drop machine is saved, and further the air-drop machine can bear more materials; the skeleton 22 is under the action of gravity in the falling process, a part of the structure of the skeleton 2 forms a supporting surface with certain strength on the upper surface of the air bag 1, and the rest part of the structure is used for providing strength support for the supporting surface. The framework 2 is of a U-shaped structure with a downward opening, the left part and the right part of the U-shaped structure are symmetrically arranged on two sides of the middle part, the left part and the right part of the U-shaped structure are respectively and rotatably connected with the middle part, and rotatable fixed connection modes such as hinging and hinge connection can be adopted between the two side surfaces of the U-shaped structure and the middle surface. The framework 2 is a steel frame structure, the steel frame structure is a horizontal plane structure formed by linear steels, the two sides of the plane structure are vertical structures formed by linear steels respectively, for example, a square structure is formed by four linear steels, and the two sides of the plane structure are vertical structures formed by linear steels respectively, for example, a U-shaped structure is formed by three linear steels respectively.

In this embodiment, the airbag 1 is made of a fiber fabric, a plastic product or other materials with certain strength and tightness, and is made of a non-woven fabric or a chemical fiber fabric by cutting and sewing, so that the airbag 1 has certain strength to prevent the material scattering caused by breakage in the putting process, and the airbag 1 has certain flexibility to facilitate the retraction of the landing buffer device. For square structure after 1 expandes completely of gasbag, the upper portion of skeleton 2 is connected with the upper surface edge of gasbag 1, and skeleton 2 and the middle part of 1 upper surface of gasbag do not contact, can guarantee like this that the goods and materials can not contact skeleton 2 when descending on gasbag 1, can effectively guarantee that the goods and materials can not damage because of bumping between with skeleton 2. The air holes 3 are arranged on the lower surface and/or the side surface of the air bag 1, and the air holes 3 are in an air inlet process in the descending process of the air bag and in an air outlet process when the air bag is in contact with the ground. The air bag 1 is in an uninflated state when not put in, can be folded together with the framework 2 to form a linear planar structure, and the air-drop landing device formed by the air bag 1 and the framework 2 is very convenient to store, does not occupy space, is high in use flexibility, can be matched and applied to most air-drop types, and is wide in application range.