CN211468824U

CN211468824U - Foldable reinforced self-rigidized space inflation unfolding pipe

Info

Publication number: CN211468824U
Application number: CN201920697765.3U
Authority: CN
Inventors: 严素欣; 张胜芝; 刘宝琪; 许相玺; 王梦
Original assignee: CASIC Space Engineering Development Co Ltd
Current assignee: CASIC Space Engineering Development Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-09-11
Anticipated expiration: 2029-05-16

Abstract

The utility model provides a foldable reinforced self-rigidized space inflation unfolding pipe, which comprises a flexible inflation pipe, a flexible reinforcing rib, an end cap and an end tail cap; the flexible reinforcing ribs are stuck to the inner wall of the flexible inflation tube along the axial direction of the flexible inflation tube; the end cover and the end tail cover are respectively used for sealing and storing two ends of the flexible inflation tube, and the end cover is provided with an inflation hole; therefore, the flexible inflation tube of the utility model can be stiffened by plastic deformation under inflation pressure, and can be stiffened for the second time by the flexible reinforcing ribs on the inner wall, so that the stiffening mode is simple; the utility model discloses an it does not have any mechanism form to aerify the exhibition pipe, can expand through aerifing in the space, and the expansion process accessible inflation rate controls moreover, and structural style is simple, the reliability is high.

Description

Foldable reinforced self-rigidized space inflation unfolding pipe

Technical Field

The utility model belongs to the technical field of the space flight, especially, relate to a collapsible muscle is from rigidizing space and is aerifyd exhibition pipe.

Background

The inflatable space structure is a space structure with the surface made of flexible film material and the interior being a cavity and capable of being inflated and unfolded. During launching, the inflatable structure is folded and stored in a rocket launching cabin so as to reduce the launching volume; after being launched into space, the structure expands and unfolds under the action of the internal gas pressure and is used as a functional component of a spacecraft. The inflatable deployment structure has the advantages that the inflatable deployment structure cannot be replaced when being applied to a space due to the advantages of small occupied effective load volume, light weight, low cost and the like. The inflation tube is a basic inflation unfolding structure, has the advantages of flexible combination, easy assembly and disassembly, structural adjustment according to requirements and the like, can be used as an unfolding structure, a supporting structure, a pressure-bearing structure, an action mechanism and the like, such as an extension arm, a track for walking outside a cabin, a pneumatic joint and the like, and has a wide application field.

However, the existing inflatable space structure does not adopt a full flexible structure, so that the rigidity is too low, namely the rigidizing technology is too complex, and heating, ultraviolet irradiation and the like are required.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a collapsible muscle is from rigidizing space and is aerifyd exhibition pipe, light in weight, store small, expand bulky, rigidizing mode is simple, simple structure, reliability are high, and the range of application is wide.

A space inflation unfolding tube comprises a flexible inflation tube 1, a flexible reinforcing rib 4, an end cap 2 and an end tail cap 3;

the flexible reinforcing ribs 4 are adhered to the inner wall of the flexible inflation tube 1 along the axial direction of the flexible inflation tube 1;

the end cover 2 and the end tail cover 3 are respectively used for sealing and storing two ends of the flexible inflation tube 1, and the end cover 2 is provided with an inflation hole.

Further, when the deployment tube is in a non-operating state, the deployment tube is mounted on an external air supply device in a Z-shaped folded storage manner through the tip cap 2.

Further, the flexible reinforcing ribs 4 are steel tape measures.

Furthermore, the number of the flexible reinforcing ribs 4 is four, and the four reinforcing ribs are uniformly distributed along the axial direction of the flexible inflation tube 1.

Further, the flexible inflation tube 1 is composed of three layers of films, wherein the three layers of films are a polyester film, an aluminum foil and a polyester film in sequence.

Further, the flexible gas-filled tube 1 is composed of three layers of films, wherein the three layers of films are a polyimide film, an aluminum foil and a polyimide film in sequence.

Further, the flexible inflation tube 1 is cylindrical.

Has the advantages that:

the utility model provides a foldable reinforced self-rigidization space inflation unfolding pipe, a flexible inflation pipe can be subjected to plastic deformation through inflation pressure to complete rigidization, and meanwhile, the flexible reinforcing ribs on the inner wall are unfolded for secondary rigidization, so that the rigidization mode is simple; the inflation unfolding pipe of the utility model has no any mechanism form, can be unfolded by inflation in the outer space, and the unfolding process can be controlled by the inflation speed, thus having simple structure form and high reliability;

secondly, the inflatable unfolding tube of the utility model is constructed by adopting a flexible composite film, and the composite film has small density, good flexibility and convenient folding; therefore, the total weight of the inflatable tube is much lighter than that of the traditional metal space structural member, the inflatable tube can be folded according to the size of a launching capsule or the size of a connecting structural member, the storage volume is small after the inflatable tube is folded, and a space structural member with the folding volume being 10 times or even hundreds times can be constructed by inflating and unfolding the inflatable tube after the inflatable tube is launched into the space;

finally, because the utility model provides an aerify and expand the pipe and mainly adopt flexible material, can adopt multiple connected modes such as mechanical connection, chemical connection with the connection of other space metallic structure outside, its structural style, mechanical properties have stronger designability simultaneously, therefore, the utility model provides an aerify and expand the pipe space range of application extensively, can construct multiple form, multiple functional type large-scale space structure according to the space task requirement; for example, a plurality of inflation tubes can be combined to construct a space large-caliber antenna, and a multi-fold solar wing unfolding driving structural member for a large satellite can be constructed by connecting the solar base plate.

Drawings

Fig. 1 is a schematic structural view of a foldable reinforced self-rigidized space inflation unfolding pipe provided by the present invention;

FIG. 2 is a schematic sectional view taken along the line A-A of the foldable reinforced self-stiffened space inflatable deployment tube provided by the present invention;

FIG. 3 is a schematic cross-sectional view of the foldable reinforced self-stiffened space inflatable deployment tube of the present invention taken along the line B-B;

fig. 4 is a schematic view of the folding/unfolding of the foldable reinforced self-stiffened space inflatable unfolding pipe provided by the present invention;

1-flexible inflation tube, 2-end cover, 3-end tail cover and 4-flexible reinforcing rib.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

Referring to fig. 1, the drawing is a schematic structural view of a foldable reinforced self-stiffened space inflation deployment tube provided in this embodiment. A foldable reinforced self-rigidized space inflation unfolding pipe comprises a flexible inflation pipe 1, a flexible reinforcing rib 4, an end cap 2 and an end tail cap 3. The end cover 2 and the end tail cover 3 are respectively used for sealing two ends of the flexible inflation tube 1, specifically, an inflation hole is formed in the center of the end cover 2, and the end cover and the inner wall of the flexible inflation tube 1 are connected and sealed through adhesive. The end tail cover 3 is connected and sealed with the outer wall of the flexible inflation tube 1 through adhesive. Four flexible reinforcing ribs 4 are adhered to the inner wall of the flexible inflation tube 1 in the axial direction, the four reinforcing ribs 4 are uniformly distributed along the axial direction of the flexible inflation tube 1, and the flexible reinforcing ribs 4 are main components for bearing load, so that the self-rigidifying composite film material forming the flexible inflation tube 1 has the characteristic of inflation hardening; optionally, the flexible reinforcing ribs 4 can be directly served by a steel tape, and the flexible inflation tube 1 is cylindrical; therefore, the self-rigidizing inflatable tube has the advantages of simple manufacture, high strength, low cost, light weight, small folding volume and the like, and the hardening method is simple and reliable.

Referring to fig. 2 and fig. 3, a schematic cross-sectional view a-a and a schematic cross-sectional view B-B of a foldable reinforced self-stiffened space inflation deployment tube according to the present embodiment are respectively shown; the tube wall of the foldable reinforced self-rigidized space inflation unfolding tube of the embodiment is that the flexible inflation tube 1 is made of three layers of flexible films, such as a combination of a polyester film, an aluminum foil and a polyester film or a combination of a polyimide film, an aluminum foil and a polyimide film; when the unfolding pipe is in a non-working state, such as a launching stage, the unfolding pipe is folded in a Z-shaped folding and accommodating mode through the end cover 2 and then is installed on the external air supply device, wherein the external air supply device can be positioned in a rocket loading cabin; that is, in the launch phase, the entire deployment tube is housed in the rocket-loaded bay; when the unfolding pipe is in a working state, for example, after the unfolding pipe is launched into space, the external air supply device fills air into the flexible air inflation pipe 1 through the air inflation hole in the end cover 2, the flexible air inflation pipe 1 is fully unfolded, and self-rigidization is carried out through air inflation pressure and the flexible reinforcing ribs 4 on the inner side of the pipe wall, so that the working state is achieved. Referring to fig. 4, it is a schematic view of the folding/unfolding of the foldable reinforced self-stiffened space inflation and unfolding pipe provided in this embodiment. Optionally, the length of the deployment tube after inflation may be 5-10m or 10-100 m; meanwhile, the inflation hole of the end cap 2 can be directly connected with an inflation port of an external air supply device or connected by a leading-out pipeline of the inflation port.

It should be noted that, when the unfolding pipe of this embodiment is installed on the external air supply device through the end cap 2, the unfolding pipe may be directly adhered to the external air supply device in an adhesive manner, or may be screwed to the external air supply device by providing a thread on the end cap 2, or may be installed on the external air supply device in various manners such as screwing or welding, which is not described in detail in this embodiment.

Therefore, the unfolding pipe provided by the embodiment has the characteristics of light weight, simple structure, folding property and self-rigidification, is small in storage volume after being folded, and can be used for constructing a large-scale space structure functional part after being inflated and unfolded; that is to say, the deployment tube provided by this embodiment can be used independently as a space structure, and can also be used for constructing a large space structure, for example, a deep space exploration spacecraft, a lunar base and a space power station need to inflate and deploy a solar cell array, a high-resolution earth observation needs a large-size inflated film antenna deployment structure, a deep space exploration and resistance-increasing off-orbit task needs a solar sail deployment structure, a satellite solar wing structure, and the like, so as to provide a good solution for the propulsion and implementation of tasks such as high-resolution earth observation and space large-size photoelectric conversion and collection of a national manned space deep space telescope.

Of course, the present invention may have other embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.

Claims

1. A space inflation unfolding tube is characterized by comprising a flexible inflation tube (1), a flexible reinforcing rib (4), a tip cover (2) and a tail end cover (3);

the flexible reinforcing ribs (4) are adhered to the inner wall of the flexible inflation tube (1) along the axial direction of the flexible inflation tube (1);

the end cover (2) and the end tail cover (3) are respectively used for sealing and storing two ends of the flexible inflation tube (1), and an inflation hole is formed in the end cover (2).

2. A space inflation deployment tube as claimed in claim 1, characterised in that it is mounted in a Z-fold stowed configuration on an external air supply by means of a tip cap (2) when the deployment tube is in an inoperative condition.

3. A space inflation deployment tube as claimed in claim 1, characterised in that the flexible reinforcing ribs (4) are steel tape.

4. A space inflation deployment tube according to claim 1, characterized in that the number of said flexible reinforcing ribs (4) is four and the four reinforcing ribs are evenly distributed along the axial direction of the flexible inflation tube (1).

5. A space charge deployment tube according to claim 1, characterised in that said flexible gas-filled tube (1) is made of three layers of film, wherein the three layers of film are, in order, mylar, aluminium foil, mylar.

6. A space inflation deployment tube according to claim 1, characterised in that the flexible inflation tube (1) is made of three layers of film, wherein the three layers of film are successively polyimide film, aluminium foil, polyimide film.

7. A space inflation deployment tube as claimed in claim 1, characterised in that the flexible inflation tube (1) is cylindrical.