KR101835025B1 - Flotage structure of flight vehicle - Google Patents

Abstract

A lifting structure according to the present invention comprises: a flexible gas bag (10); A string 20 wound around the gas bag 10; A drug (30) supplied on the gas bag (10) and the string (20) in an injection manner; And an outer case 40 having a structure that entirely surrounds the gas bag 10 in which the string 20 is wound.

Description

{Flotage structure of flight vehicle}

The present invention relates to a flotation structure for a flying body, which comprises a flotation structure having a structure for winding various types of flexible gas flaps filled with flotation gas and winding the flotation gas envelope in order to increase the rigidity of the flotation gas flotation structure Technology.

Airships are airplanes that obtain most of the lift from lighter than the air contained in the air sac. Since lift is generated from the physical properties of the gas, it does not require the energy to lift it and only the propulsion is provided from the engine.

As a result, it is a relatively economical and environmentally friendly device compared to aircraft that are heavier than air. Helium, which is mainly used in terms of stability, is ineffective and non-combustible, which means there is no risk of explosion or fire. Even if the engine is stopped, the airship is a light object, so it can be kept up by the helium gas in the airbag. Even if the airbag is damaged, the rising gas in the airship maintains a very low pressure Even if a small hole is formed, gas outflow is very slow. Even if there are several holes, it does not have a substantial effect on lifting, so it can be repaired during periodic maintenance inspection.

Since the airship is not a free balloon, it can be adjusted in most cases by the engine except for severe gusts. It provides all-weather control capability due to structural stability, boarding sense, and adjustment performance. Snow and ice, which can be a major disaster, are not an important risk factor for airplanes. It is possible to fly airships in all climatic conditions where only fixed-wing aircraft can fly.

The conventional airfoil has a honeycomb structure in which a honeycomb structure is installed inside the airfoil to increase the rigidity and reduce the weight, thereby preventing the shape of the airfoil from being deformed by the impact. However, this method has problems such as the limitation of light weight due to a large number of frames and the inability to restore the airfoil deformation caused by a severe external impact.

Such problems may be vulnerable to safety accidents that may occur during operation of the aircraft, and since the gross weight remains unchanged, the energy efficiency required to generate buoyancy is poor. Therefore, there is a need to develop a new process that can increase the robustness of the airfoil and reduce the total weight.

Conventional literature disclosing techniques related to a bag container for holding helium gas or a floating device capable of generating sufficient buoyancy to safely retrieve a flying object is disclosed in Korean Patent No. 10-0302454 and Korea Registration Utility Model No. 20-0206665.

(Patent Document 1) KR10-0302454 B

(Patent Document 2) KR20-0206665 B

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-described conventional problems, and it is an object of the present invention to provide a structure in which a flexible gas bag filled with a flotation gas is retained in various shapes and a string is wound around the gas bag in order to enhance the rigidity of the gas bag The present invention provides a floating structure having the above structure.

In addition, the present invention increases the coupling force between the gas bag and the string by injecting a separate medicine on the gas bag and the string, and increases the rigidity of the entire body so as to prevent damage due to external force This is the purpose.

According to an aspect of the present invention, there is provided a lifting structure comprising: a flexible gas bag; A string 20 wound around the gas bag 10; An agent (30) supplied in a jetting manner onto the gas bag (10) and the string (20) wound on the gas bag (10); And an outer case 40 having a structure that entirely surrounds the gas bag 10 in which the string 20 is wound.

As the material of the gas bag 10, polyurethane resin is applied.

The gas bag 10 adjusts the amount of gas injected when the gas is filled through a filling port disposed at one side thereof on the basis of the set maximum and minimum values or injects the gas to be set to an optimum value.

The chemical agent 30 includes an epoxy component so that when the gasket 10 is supplied between the gasket 10 and the string 20, the chemical agent 30 is hardened, It keeps its shape.

As described above, the support structure for a flying body according to the present invention allows the flexible gas bag filled with the flotation gas to be changed into various shapes through a process of winding the flexible gas bag from one side to the other side through a string, And has a morphologically stabilized structure through the string structure wound on the gas bag.

In addition, the present invention increases the adhesion between the gas bag and the string by injecting a separate medicine on the bundled gas bag and the string, and increases the rigidity of the entire body so as to prevent breakage due to external force .

Further, the present invention increases the lifting ability and rigidity by forming a lightened outer case such as a carbon case in such a manner that the string surrounds the wound gas bag.

Further, according to the present invention, a flexible gas bag filled with a flotation gas is simplified through a string winding process and a chemical feed process, thereby simplifying the manufacturing process. Let's do it.

1 is an overall structural view of a floating structure for a vehicle according to the present invention.
2 shows a process of forming a floating structure according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of other various forms of implementation, and that these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know completely. Wherein like reference numerals refer to like elements throughout.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Hereinafter, a flotation structure for a vehicle according to the present invention will be described with reference to FIGS. 1 and 2. FIG.

The support structure may be configured to have various shapes of the flexible gas bag 10 and the gas bag 10 filled with the flotation gas 15 and to surround the gas bag 10 in order to enhance the rigidity of the gas bag 10 A structure in which the gas bag 10 wound around the string 20 is wrapped around the string 20 wound around the string 20, the drug 30 supplied in a jetting manner onto the string 20, And a case (40). Here, "binding" refers to a state in which two members are brought into contact or adjoining without being freely separated by winding or winding.

The gas bag 10 is made of a material having excellent ductility and elasticity, and stably holds the gas bag 10 at the time of filling with a flotation gas containing an inert gas such as helium gas.

The gas bag 10 adopts a material capable of maintaining the injected air layer by employing a synthetic resin such as TPU (Thermoplastic Polyurethane) or LLDPE (Linear Low-Density Polyethylene). TPU is resistant to wear due to its strong durability, which prevents distortion and absorbs shock.

As the material of the gas bag 10, a polyurethane resin can be applied. The polyurethane resin is a linear polymer having both a soluble and a thermoplastic nature. The polyurethane molecules consist of an alternating arrangement of a soft segment and a hard segment. The soft segment is a polyester or polyether block, And the hard segment is made of urea or urethane. The hard segments are derived from the reaction of diisocyanates with compounds such as amines or water that give rise to urethane or urea bonds. Generally, the polyurethane is produced by reacting a second compound having a diisocyanate and a hydrogen group, for example, a compound having a hydroxyl group, an amino group or a carboxyl group. More specifically, the dihydroxyl polyester or dihydroxyl polyether is treated with a diisocyanate at a temperature of from 75 to 125 DEG C to form a prepolymer. Usually about 2 moles of diisocyanate is used per mole of dihydroxyl polyester or polyether such that both ends of the polymer are isocyanates. Next, the prepolymer having the isocyanate as a terminal is dissolved in an appropriate solvent such as anhydrous dimethylformamide, and a chain extender such as a diol (glycol) or a diamine is added to the diisocyanate in an equivalent amount so that the double- Make

The gas bag 10 filled with the flotation gas 15 may initially have a regular shape such as a sphere or an ellipse. Specifically, referring to Fig. 1 (a), the gas bag 10 may have an initial shape close to an elliptical shape.

The gas bag 10 is injected with a large amount of gas close to the set maximum value by adjusting the amount injected when the gas is injected through the gas injection port disposed at one side thereof, It may be possible to inject a small amount of gas so as to approach a minimum value enough to inject a proper amount of gas or to maintain performance.

The gas injection port disposed at one side of the gas bag 10 has an air supply structure of a general structure functioning to inject air into a soccer ball, a basketball ball, and the like. For example, when a nozzle for supplying gas from the outside is coupled onto the gas injection port, the space between the gas injection port and the gas bag 10 is opened to allow the flow of gas to be free, It can be confirmed that the gas injection port and the gas bag 10 are closed.

The degree of expansion of the gas bag 10 can be adjusted by controlling the amount of gas supplied into the gas bag 10 through the gas inlet through the above process.

Referring to FIG. 1 (b), the gas bag 10 is flexibly deformed into various shapes through the string 20. That is, by regulating the strength of the string 20 wound from one side of the gas bag 10, the shape of the gas bag 10 is variably realized.

The string 20 may be a member having sufficient flexibility so that it can be rolled along the outer surface of the gas bag 10.

The string 20 may include a synthetic string made of nylon, a synthetic string of a polyester material in the form of a monofilament, a synthetic string of a material made of a multi-layered artificial fiber, and the like.

The string 20 may be made of a carbon fiber material. Cellulose, acrylic fiber, vinylon, pitch and the like are used as raw materials of carbon fiber, and molecular arrangement and crystallization are changed depending on raw materials or process temperature. Generally, the hexagonal rings of carbon form a layered lattice followed by metallic luster and black or gray. The carbon fiber has a strength of 10 to 20 g / d and a specific gravity of 1.5 to 2.1, which is excellent in heat resistance, impact resistance, resistance to chemicals, and resistance to insects. Oxygen, hydrogen, nitrogen and other molecules escape from the heating process, so they are lighter than metals such as aluminum because their weight is reduced, while they are more elastic and stronger than metals.

2, the gas bag 10 may be formed into a dumbbell shape in which the center is narrower than both sides through the process of winding through the string 20.

Referring to Fig. 1 (c), the medicament 30 is supplied on the gas bag 10 and the string 20 in an injection manner.

The medicament 30 increases the adhesion between the gas bag 10 and the string 20, and at the same time increases the rigidity of the entire support structure to prevent breakage due to external force.

The medicament 30 includes an epoxy-containing component and is supplied between the gas bag 10 and the string 20. The medicament 30 is cured to form a string 20 connected to the gas bag 10, It maintains the shape.

Referring to Fig. 1 (d), the outer case 40 is configured in such a manner that the string 20 surrounds the gas bag 10 wound with the string. The outer case (40) adopts a lightweight material such as a carbon case, thereby increasing lifting ability and rigidity.

The present invention is characterized in that a string (20) is arranged between a gas bag (10) and an outer case (40), and a medicine (30) which increases a binding force between the gas bag (10) Even if an unexpected breakage is formed in the gasket 10, it is possible to maintain the stable shape of the gasket 10. As described above, the gas bag 10 surrounded by the string 20 treated with the medicament 30 has a structural feature in that the air bag 10 is disposed in the outer case 40 in such a state that air can be injected.

That is, the string 20 is tightly fixed on the gas bag 10 through the medicine 30. When the damage is generated on the outer case 40 by external pressure or the like, the gas bag 10 10, and at the same time, the outer surface of the gas bag 10 is firmly held to prevent breakage.

The present invention simplifies the flexible gas bag (10) filled with the flotation gas through a process of winding the string (20) and supplying the medicine (30) more easily than the existing process system, Thereby significantly reducing costs.

As described above, the support structure for the air vehicle according to the present invention allows the flexible gas bag filled with the flotation gas to be changed into various shapes through a process of winding the flexible gas bag through the string from one side to the other side, And has a morphologically stabilized structure through the string structure wound on the gas bag.

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, But should be construed as further including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: gas bag
15: Support gas
20: String
30: Pharmaceutical
40: outer case

Claims (4)

A flexible gas bag (10);
A string 20 wrapped around the gas bag 10;
An agent (30) supplied in a jetting manner onto the gas bag (10) and the string (20) wound on the gas bag (10); And
And an outer case (40) configured to entirely surround the gas bag (10) wound with the string (20)
Dependent structure for flight.
The method according to claim 1,
As the material of the gas bag 10, a polyurethane resin is applied,
Dependent structure for flight.
The method according to claim 1,
The gas bag (10) has a function of adjusting the amount injected when filling up the flotation gas through a filling port disposed at one side thereof on the basis of the set maximum and minimum values, or injecting the flotation gas into the gas bag (10)
Dependent structure for flight.
The method according to claim 1,
The chemical agent 30 includes an epoxy component so that when the gasket 10 is supplied between the gasket 10 and the string 20, the chemical agent 30 is hardened, Keeping shape,
Dependent structure for flight.

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