WO2011131100A1

WO2011131100A1 - Improved lifting device

Info

Publication number: WO2011131100A1
Application number: PCT/CN2011/072722
Authority: WO
Inventors: 龚炳新
Original assignee: Gong Bingxin
Priority date: 2010-04-19
Filing date: 2011-04-13
Publication date: 2011-10-27
Also published as: CN101823415A

Abstract

An improved lifting device is composed of three-layer soft tough airtight material with low density. A middle layer material and an innermost layer material are surrounded by an outermost layer material. Compressed air is filled in space surrounded by the outermost layer material and the middle layer material to expand the outermost layer material to form smooth streamline. The lifting device can maintain better streamline in high-speed flying process to reduce flying resistance. The structure of the lifting device is improved, so as to ensure that the lifting device is expanded easily after being inflated and the volume of a large cavity will not be reduced significantly to increase the load weight of the lifting device.

Description

Improved lift device

The invention relates to a novel vehicle. This improved lifting device is mainly an improvement of the lift device in the inventor's invention "Flying Vehicle" (Chinese Patent Application No.: 200810218971. 8). A layer of outermost material is added to the outer casing of the lifting device to provide a streamlined shape even at high speeds to reduce flight resistance and further improve the structure of the lifting device to ensure that the lifting device is inflated. After that, it is easy to expand, and the volume of the large cavity is not significantly reduced, thereby increasing the load capacity of the lift device.

Background technique

The present invention is an improvement of the inventor's existing invention "Flying Vehicle" (Chinese Patent Application No.: 200810218971. 8). In the inventor's existing invention of "Flying Car", the outer surface of the airlifting device will become The unevenness will increase the resistance during flight; in addition, if the outer layer material and the inner layer material of the lift device are unreasonable, the large cavity volume will be significantly reduced, thereby reducing the load capacity of the lift device.

Summary of the invention

In order to overcome the aforementioned deficiencies of the lift device, the present invention provides an improved lift device.

This improved lift device consists of three layers of low density, soft, tough, airtight material. The middle layer material and the innermost layer material have a structure similar to that of the lift device in the inventor's existing invention "Flying Car" (Chinese Patent Application No.: 200810218971. 8), and the outermost material is surrounded by the inside. The structure consisting of two layers of material forms an improved lift device.

The space surrounded by the outermost material of the improved lift device and the intermediate layer of material will be filled with compressed air, allowing the outermost material to expand to form a smooth, streamlined surface.

The space surrounded by the middle layer and the innermost layer will also be filled with compressed air. The compressed air pressure in the space surrounded by the middle layer and the innermost layer is greater than the space surrounded by the outermost material and the middle layer. Compressed air pressure. The large cavity surrounded by the innermost material will be evacuated.

After the space between the middle layer and the innermost layer is filled with compressed air, since the middle layer and the innermost layer are connected by the connecting material, the materials used are soft and tough materials, and the middle layer and the innermost layer. The layer material must expand to some concave surface.

The total surface area of the concave portion expanded by the intermediate layer material is greater than the total surface area of the concave surface from which the innermost layer material is expanded, and the curvature of the concave portion of the intermediate layer material is greater than the curvature of the concave surface from which the innermost layer material is expanded.

Control the ratio of the surface area of the middle layer to the innermost layer by controlling the density or pressure of the compressed air in the space surrounded by the middle layer and the innermost layer, depending on the toughness of the material and the tightness of the joint. The greater the density or pressure of compressed air in the space surrounded by the material and the innermost material, the greater the ratio of the surface area of the middle layer to the innermost layer, and the average of the space surrounded by the middle layer and the innermost layer. The smaller the thickness. vice versa. This achieves the goal of being safe, saving material and reducing the weight of the lifting device.

After the lift device falls, the outermost material and the middle layer of the material, as well as the middle layer of the material and the innermost layer The air filled in the space enclosed by the material will be drained through the air pipe and folded into the lifting device storage box.

detailed description

Before the lift device is lifted off, the space surrounded by the middle material and the innermost material is filled with compressed air, and then the large cavity surrounded by the innermost material will be evacuated.

Because the space surrounded by the middle layer and the innermost layer is filled with compressed air, the material in the middle will become uneven and increase the flight resistance. In order to reduce the flight resistance, the outermost material will surround the two layers of material. The structure is composed, and the space surrounded by the outermost material and the middle layer of material is filled with compressed air to expand the outermost material to form a smooth streamlined surface.

In order to make the space surrounded by the middle layer material and the innermost layer material not to be squeezed and smaller, the compressed air pressure of the space surrounded by the middle layer material and the innermost layer material is larger than that of the outermost layer material and the middle layer material. The compressed air pressure of the space.

In order to fill the space surrounded by the outermost material and the intermediate layer of material, the outermost material will be fitted with an inflatable tube.

After the space between the middle layer and the innermost layer is filled with compressed air, since the middle layer and the innermost layer are connected by the connecting material, the materials used are soft and tough materials, and the middle layer and the innermost layer. The layer material must expand to some concave surface. The concave resistance coefficient must be greater than the convex resistance coefficient.

Control the ratio of the surface area of the middle layer to the innermost layer by controlling the density or pressure of the compressed air in the space surrounded by the middle layer and the innermost layer, depending on the toughness of the material and the tightness of the joint. The greater the density or pressure of compressed air in the space surrounded by the material and the innermost material, the greater the ratio of the surface area of the middle layer to the innermost layer, and the space between the middle layer and the innermost layer. The smaller the average thickness. vice versa. This achieves the goal of being safe, saving material and reducing the weight of the lifting device.

The force analysis and rough calculations are used to further understand and how to implement the structure of the lift device. The middle layer of material is subjected to the compressed air pressure of the space surrounded by the outermost material and the middle layer of material and the compressed air pressure of the space surrounded by the middle layer and the innermost layer, because the middle layer and the innermost layer The compressed air pressure in the space surrounded by the material is greater than the compressed air pressure in the space surrounded by the outermost material and the middle layer of material, so the resultant force direction is directed to the outside, as long as the middle layer of material is sufficiently tough, the resultant force is insufficient to tear the middle layer material.

The innermost layer material is subjected to the compressed air pressure in the space surrounded by the middle layer material and the innermost layer material and the thin air pressure inside the large cavity, because the compressed air pressure ratio of the space surrounded by the middle layer material and the innermost layer material is larger than the air space. The thin air pressure inside the chamber is large, so the resultant force direction points to the inside of the large cavity. As long as the innermost material is tough enough, the resultant force is not enough to tear the innermost material.

The joining material is subjected to an outwardly directed expansion force at the junction with the intermediate layer material and is subjected to a compressive force directed to the interior of the large cavity at the junction with the innermost layer material. It is this compressive force that causes the structure of the lift device to collapse.

It is assumed that the lifting device is expanded into a spherical shape after being filled with compressed air, and then the inside of the large cavity is evacuated. Because the pressure between the material in the middle layer and the innermost material is equal, and the surface area of the middle layer is larger than the surface area of the innermost material, the connecting material is pointed at the junction with the material in the middle layer. The external expansion force is E,

E=l. 33P*A-0. 34F*A, where P is the pressure in the space surrounded by the middle layer and the innermost layer, A is the total surface area of the middle layer, F is the outermost material and the middle The atmospheric pressure of the space surrounded by the material is 1. 33 and 0.34 is the drag coefficient, P is 1.33 because P acts on the concave surface of the ball, F takes 0. 34 because P acts on the convex surface of the ball, please Reference (wind machine theory and design pl22, law) Le Gourieres (D.); Shi Pengfei translation; Mechanical Industry Press, 1987).

Here, for the convenience of calculation, it is assumed that the middle layer material and the innermost layer material are filled with compressed air, and the middle layer material and the innermost layer material are expanded into a hemispherical shape. In fact, since the inner and outer layers are all soft and tough materials After the lifting device is filled with compressed air, the inner and outer materials of the small cavity will expand into two concave surfaces, and the concave surface resistance coefficient must be greater than the convex surface resistance coefficient.

If the inside of the large cavity is an absolute vacuum, the connecting material is subjected to a compressive force directed to the inside of the large cavity at the junction with the innermost layer material, C = C. 33P*B, where B is the total surface area of the innermost material. The total surface area of the concavity formed by the middle layer material is larger than the total surface area of the concave surface expanded by the innermost layer material, A>B, P>F, and E=C must exist, so the structure of the lift device does not collapse.

When EX, the lift device continues to expand;

When E < C, the lift device continues to collapse;

When E = C, the lift device neither expands nor collapses.

When E=C, 1. 33P*A-0. 34F*A=1. 33P*B, we can see that the condition of the structure of the lift device does not collapse depends on the middle layer material and the innermost layer material. The pressure in the surrounding space and the total surface area of the middle layer material and the innermost layer material.

It can also be calculated from the above formula that the larger the P, the larger the air density in the space surrounded by the middle layer material and the innermost layer material, the larger the ratio of the surface area of the middle layer material to the innermost layer material, that is, the middle The smaller the average thickness of the space surrounded by the layer of material and the innermost layer of material. For example, when P = 1.5F, B/A = 0.83, that is, if the radius of the space surrounded by the material of the middle layer is 1, the radius of the space surrounded by the innermost material is 0.91, the middle layer The average thickness of the space surrounded by the material and the innermost layer material is 0.09, when P=2F, B/A=0.87, that is, if the radius of the space surrounded by the middle layer material is 1, the innermost layer material The average thickness of the space surrounded by the material of the middle layer and the innermost layer is 0. 07.

This is also in line with our common sense, that is, objects of the same density, the larger the thickness of the object, the greater the load; such as a thick iron plate is more important than a thin iron plate. For objects of the same thickness, the higher the density of the object, the greater the load; for example, the same thickness of the iron plate is greater than the board.

In summary, the reasonable structure of the lifting device requires that the material is tough enough and the connection is strong enough. The air density in the space surrounded by the middle layer and the innermost material is large enough, and the space between the middle layer and the innermost layer is sufficient. The average thickness is large enough.

After the lift device falls, the air filled in the outermost material and the middle layer material and the space between the middle layer and the innermost layer will be drained through the air pipe and folded into the lift storage box.

Claims

An improved lifting device characterized by: consisting of three layers of low-density, soft, tough, gas-impermeable material, that is, composed of an outermost layer material, an intermediate layer material, and an innermost layer material;

An improved lifting device according to claim 1, wherein: said outermost layer material surrounds a structure consisting of two layers of material inside;

An improved lifting device according to claim 1, wherein: said outermost material and the space surrounded by the intermediate layer of material are filled with compressed air to expand the outermost material to form a surface. Smooth streamlined; the space surrounded by the middle layer and the innermost layer will also be filled with compressed air. The compressed air pressure in the space surrounded by the middle layer and the innermost layer is greater than the outermost material and the middle layer. Compressed air pressure in the enclosed space. The large cavity surrounded by the innermost material will be evacuated;

An improved lifting device according to claim 1, wherein: said intermediate layer material expands into a concave surface having a total surface area greater than a total surface area of the concave surface from which the innermost material is expanded, and the intermediate layer material The curvature of the expanded concave surface is greater than the curvature of the concave surface from which the innermost material is expanded;

An improved lifting device according to claim 1, wherein: by controlling the toughness of the material and the degree of firmness of the connection, by controlling the density of compressed air in the space surrounded by the intermediate layer material and the innermost layer material or Pressure, which controls the ratio of the surface area of the middle layer to the innermost layer of material, that is, the greater the density or pressure of compressed air in the space surrounded by the middle layer and the innermost layer, the middle layer and the innermost layer. The larger the ratio of surface areas, the smaller the average thickness of the space surrounded by the middle layer and the innermost layer. vice versa. This achieves the goal of being safe, saving material and reducing the weight of the lifting device.

An improved lifting device according to claim 1, wherein: after the lifting device falls, the outermost material and the middle layer of material and the air between the middle layer material and the innermost layer material are filled with air. It will be drained through the trachea and folded into the lifting device storage box.