CN114150814B - Inflatable and expandable rigidizable lunar soil filling brick with foldable rigid shell - Google Patents

Inflatable and expandable rigidizable lunar soil filling brick with foldable rigid shell Download PDF

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Publication number
CN114150814B
CN114150814B CN202111424398.8A CN202111424398A CN114150814B CN 114150814 B CN114150814 B CN 114150814B CN 202111424398 A CN202111424398 A CN 202111424398A CN 114150814 B CN114150814 B CN 114150814B
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lunar soil
flexible
rigid
soil bag
bag
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CN114150814A (en
Inventor
苗常青
史志鑫
刘蕾
周佳
徐铧东
石景富
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Harbin Institute of Technology
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Harbin Institute of Technology
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00Building elements of block or other shape for the construction of parts of buildings
    • E04C1/40Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/343Structures characterised by movable, separable, or collapsible parts, e.g. for transport
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00Building elements of block or other shape for the construction of parts of buildings
    • E04C1/39Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/724Permeability to gases, adsorption
    • B32B2307/7242Non-permeable

Abstract

An inflatable and expandable rigidizable lunar soil filling brick with a foldable rigid shell belongs to the technical field of spacecraft structures. The lunar soil brick is of a foldable structure, has small emission volume and high strength after molding, and can be manufactured in situ on the moon. It comprises a foldable rigid shell and a flexible lunar soil bag; the flexible lunar soil bag is arranged inside the rigid shell, the rigid shell and the flexible lunar soil bag can be folded and launched, the flexible lunar soil bag is provided with a connecting pipe, the flexible lunar soil bag is inflated by an inflator pump through the connecting pipe, inflation and unfolding of the flexible lunar soil bag are achieved, the unfolded flexible lunar soil bag is heated and rigidified, and lunar soil is automatically filled inside the rigidized flexible lunar soil bag through the sand pump. The lunar soil filling brick has the advantages of light weight, high structural rigidity, good stability, good bearing performance and good radiation protection performance, can fully utilize lunar soil resources, and reduces the transportation cost of lunar soil building materials.

Description

Inflatable and expandable rigidizable lunar soil filling brick with foldable rigid shell
Technical Field
The invention belongs to the technical field of spacecraft structures, and particularly relates to an inflatable and expandable rigidizable lunar soil filling brick with a foldable rigid shell.
Background
The moon base is the main place for lunar exploration astronauts to work and live in the moon, and in order to reduce the transportation cost of building materials on the moon surface, an in-situ resource construction technology (ISRU) becomes a main construction scheme. Lunar soil is the most main in-situ resource of the lunar surface, and can be used for heat preservation, radiation protection and micro-fluid star impact protection of buildings when being used for covering the surface of the buildings.
At present, lunar soil brick construction technologies based on lunar soil mainly comprise a lunar soil concrete 3D printing technology, a lunar soil sintering technology, a lunar soil bonding technology, a lunar soil bag constraint technology and the like. The main difficulty of the lunar soil concrete 3D printing technology is the hydration problem of the concrete lunar surface; the difficulty of the lunar soil sintering technology comprises high difficulty, high energy consumption and low strength; the difficulties of the lunar soil bonding technology include large using amount of the cementing agent, high construction cost, low speed, easy hardening, difficult large-scale construction and the like; the lunar soil bag restraint technology has the advantages of low construction energy consumption, light emission quality and the like, but has the defects of low compressive strength, difficulty in automatic manufacturing and the like.
Disclosure of Invention
In order to solve the problems of high energy consumption, low strength, complex manufacturing process, slow building speed, difficulty in large-scale building and the like of the conventional lunar soil brick in the background art, the invention provides an inflatable and expandable rigidizable lunar soil filling brick with a foldable rigid shell, wherein the rigid shell can be folded and expanded, the emission volume is small, the strength of the formed lunar soil brick is high, and the lunar soil brick can be manufactured in situ on the moon.
The technical scheme adopted for solving the technical problem is as follows: an inflatable expandable rigidizable lunar soil filling brick with a foldable rigid shell comprises a foldable rigid shell and a flexible lunar soil bag; the flexible lunar soil bag is arranged inside the rigid shell, the rigid shell and the flexible lunar soil bag can be folded and launched, the flexible lunar soil bag is provided with a connecting pipe, the flexible lunar soil bag is inflated by an inflator pump through the connecting pipe, inflation and unfolding of the flexible lunar soil bag are achieved, the unfolded flexible lunar soil bag is heated and rigidified, and lunar soil is automatically filled inside the rigidized flexible lunar soil bag through the sand pump.
The rigid shell comprises two end cover plates, a plurality of circumferential rigid plates, a plurality of rigid baffles and a plurality of flexible connecting strips; every circumference rigid plate's both ends all rigid baffle of fixedly connected with, all connect and then form folding the enclosure casing through flexonics area between two adjacent circumference rigid plates, an edge of enclosing the both ends of closing the casing is connected with the corresponding limit of corresponding tip apron through flexonics area respectively, and two tip apron are folding in to enclosing the enclosure casing, and during the expansion, the tip apron expands under the inflation pressure effect of inside flexible lunar soil bag, and its free limit is retrained fixedly by the rigid baffle that circumference rigid plate tip set up to form confined rigid space.
The flexible connecting belt is a rigidizable connecting belt and is made of a rigidizable flexible fiber composite material, and the flexible connecting belt is heated and rigidized after the rigid shell is integrally unfolded and molded.
The interior of the flexible lunar soil bag is provided with a flexible pull wire, and two ends of the pull wire are respectively connected with the inner side surface of the flexible lunar soil bag.
And each circumferential rigid plate, each rigid baffle plate and each end cover plate are made of rigid metal plates or carbon fiber plates.
The flexible lunar soil bag is made of a plurality of layers of rigidizable flexible composite materials and sequentially comprises an airtight layer, an electric heating layer and a rigidized layer from inside to outside.
The air-tight layer of the flexible lunar soil bag is made of a gas barrier film material; the electric heating layer of the flexible lunar soil bag is made of electric heating wires and used for heating the rigidizing layer to rigidize the rigidizing layer; the rigidizing layer of the flexible lunar soil bag is made of a rigidizable flexible fiber composite material, and can be heated and rigidized after being inflated, unfolded and formed.
The invention has the beneficial effects that:
the invention provides an inflatable unfolding rigidizable lunar soil filling brick with a foldable rigid shell.
1. The lunar soil filling brick shell is a rigid shell connected by flexible connecting bands, has enough structural rigidity and strength, and can form a rigid lunar soil brick with enough bearing capacity under the condition that lunar soil is filled inside.
2. The interior of the rigid shell of the lunar soil filling brick is provided with the flexible lunar soil bag, after lunar soil is filled, the flexible lunar soil bag can be electrically heated and hardened, and the hardened flexible lunar soil bag forms an inner-layer rigid shell of the lunar soil filling brick, so that the structural rigidity, the strength and the pressure-bearing capacity of the lunar soil filling brick are further improved.
3. The lunar soil filling brick is simple in structure, lunar soil is filled conveniently and quickly, lunar soil can be automatically filled into the flexible lunar soil bag by using the sand filling pump, and modularization, flow and large-scale construction of the lunar soil brick can be realized.
4. The rigid shell of the lunar soil filling brick can be folded, the launching volume is small, the structural rigidity of the lunar soil filling brick can be improved through the unfolded rigid shell, and the unfolded rigid shell can limit and maintain the rigidized shape of the lunar soil bag in the rigidizing process of the flexible lunar soil bag.
5. The lunar soil filling brick is built by utilizing the existing lunar surface resources, the local materials are used, and the emission and transportation cost is reduced.
6. The lunar soil filling brick can be set into various shapes, and the shape can be designed according to actual needs, so that the lunar soil filling brick is suitable for buildings in various forms.
7. Compared with the existing lunar soil bag, the lunar soil filling brick has the advantages that the structural rigidity and stability are obviously improved.
Drawings
In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of the flexible lunar soil bag after unfolding and rigidifying;
FIG. 3 is a schematic diagram of the internal structure of the present invention in a non-operating state;
FIG. 4 is a schematic view of the folding orientation of the end closure panels of the present invention;
FIG. 5 is a schematic illustration of the folding effect of the rigid shell of the present invention;
in the figure:
1. a rigid housing; 2. a flexible lunar soil bag; 11. a circumferential rigid plate; 12. an end cover plate; 13. a flexible connecting band; 14. a rigid baffle; 21. a connecting pipe; 22. and pulling a wire.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
An inflatable unfolding rigidizable lunar soil filling brick with a foldable rigid shell comprises a foldable rigid shell 1 and a flexible lunar soil bag 2; the flexible lunar soil bag 2 is arranged inside the rigid shell 1, the rigid shell 1 and the flexible lunar soil bag 2 can be folded and launched, the connecting pipe 21 is arranged on the flexible lunar soil bag 2, the flexible lunar soil bag 2 is inflated through the connecting pipe 21 by using an inflator pump, inflation and unfolding of the flexible lunar soil bag 2 are achieved, the unfolded flexible lunar soil bag 2 is heated and rigidified, lunar soil is automatically filled inside the rigidized flexible lunar soil bag 2 through the sand pump, and finally the lunar soil filling brick with high rigidity, bearing performance and radiation protection performance is formed.
The rigid shell 1 comprises two end cover plates 12, a plurality of circumferential rigid plates 11, a plurality of rigid baffles 14 and a plurality of flexible connecting strips 13; every circumference rigidity board 11 both ends all fixedly connected with a rigidity baffle 14, all connect through flexonics area 13 between two adjacent circumference rigidity boards 11 and then form folding enclosure casing, an edge that encloses the both ends of closing the casing is connected with corresponding limit of corresponding tip apron 12 through flexonics area 13 respectively, and two tip apron 12 are folding in to enclosing the casing, and during the expansion, tip apron 12 expands under the action of the pneumatic pressure of inside flexible lunar soil bag 2, and its free edge is retrained fixedly by rigidity baffle 14 that circumference rigidity board 11 tip set up to form confined rigid space.
The flexible connecting belt 13 is a rigidizable connecting belt and is made of a rigidizable flexible fiber composite material, the flexible connecting belt 13 is heated and rigidized after the rigid shell 1 is integrally unfolded and formed, and the rigidized flexible connecting belt 13 can improve the stability of the integral structure.
The flexible lunar soil bag 2 is internally provided with a flexible stay wire 22, two ends of the stay wire 22 are respectively connected with the inner side surface of the flexible lunar soil bag 2, and the pressure of the lunar soil on the rigid shell 1 can be reduced after the lunar soil is filled.
Rigid metal plates or carbon fiber plates are adopted by the circumferential rigid plates 11, the rigid baffle plates 14 and the end cover plates 12, so that the light weight is ensured, and the high structural rigidity is ensured.
The flexible lunar soil bag 2 is made of a plurality of layers of rigidizable flexible composite materials and sequentially comprises an airtight layer, an electric heating layer and a rigidized layer from inside to outside, and the rigidized flexible lunar soil bag 2 is tightly attached and connected with the rigid shell 1.
The air-tight layer of the flexible lunar soil bag 2 is made of a gas barrier film material; the electric heating layer of the flexible lunar soil bag 2 is made of electric heating wires and used for heating the rigidized layer to rigidize the rigidized layer; the rigidizing layer of the flexible lunar soil bag 2 is made of a rigidizable flexible fiber composite material, can be heated and rigidized after being inflated, unfolded and formed, and has high strength and rigidity.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (5)

1. An air-filled expandable rigidizable lunar soil fill brick having a collapsible rigid shell, comprising: comprises a foldable rigid shell (1) and a flexible lunar soil bag (2); the flexible lunar soil bag (2) is arranged inside the rigid shell (1), the rigid shell (1) and the flexible lunar soil bag (2) can be folded and launched, a connecting pipe (21) is arranged on the flexible lunar soil bag (2), the flexible lunar soil bag (2) is inflated by an inflator pump through the connecting pipe (21) to realize inflation and unfolding of the flexible lunar soil bag (2), the unfolded flexible lunar soil bag (2) is heated and rigidified, and lunar soil is automatically filled inside the rigidized flexible lunar soil bag (2) through the sand pump;
the rigid shell (1) comprises two end cover plates (12), a plurality of circumferential rigid plates (11), a plurality of rigid baffles (14) and a plurality of flexible connecting strips (13); the two ends of each circumferential rigid plate (11) are fixedly connected with a rigid baffle (14), two adjacent circumferential rigid plates (11) are connected through a flexible connecting belt (13) to form a foldable enclosure shell, one edge of each of the two ends of the enclosure shell is connected with the corresponding edge of the corresponding end cover plate (12) through the flexible connecting belt (13), the two end cover plates (12) are folded into the enclosure shell, when the end cover plates (12) are unfolded under the action of the inflation pressure of the internal flexible lunar soil bag (2), and the free edges of the end cover plates are restrained and fixed by the rigid baffles (14) arranged at the ends of the circumferential rigid plates (11), so that a closed rigid space is formed;
the flexible connecting belt (13) is a rigidizable connecting belt and is made of a rigidizable flexible fiber composite material, and the flexible connecting belt (13) is heated and rigidized after the rigid shell (1) is integrally unfolded and molded.
2. An air-filled expandable rigidifiable lunar soil filling tile with a collapsible rigid shell as defined in claim 1, wherein: the interior of the flexible lunar soil bag (2) is provided with a flexible stay wire (22), and two ends of the stay wire (22) are respectively connected with the inner side surface of the flexible lunar soil bag (2).
3. An air-filled expandable rigidifiable lunar soil filling tile with a collapsible rigid shell as defined in claim 1, wherein: each of the circumferential rigid plate (11), the rigid baffle plate (14) and the end cover plate (12) is made of a rigid metal plate or a carbon fiber plate.
4. An air-filled expandable rigidifiable lunar soil filling tile with a collapsible rigid shell as claimed in claim 1 or 2, wherein: the flexible lunar soil bag (2) is made of a plurality of layers of rigidizable flexible composite materials and sequentially comprises an air tight layer, an electric heating layer and a rigidizing layer from inside to outside.
5. An air-filled expandable rigidifiable lunar soil filling brick with a collapsible rigid casing as claimed in claim 4, wherein: the air-tight layer of the flexible lunar soil bag (2) is made of a gas barrier film material, and the electric heating layer of the flexible lunar soil bag (2) is made of an electric heating wire and used for heating the rigidized layer to rigidize the rigidized layer; the rigidizing layer of the flexible lunar soil bag (2) is made of a rigidizable flexible fiber composite material, and can be heated and rigidized after being inflated, unfolded and formed.
CN202111424398.8A 2021-11-26 2021-11-26 Inflatable and expandable rigidizable lunar soil filling brick with foldable rigid shell Active CN114150814B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113235736A (en) * 2021-05-31 2021-08-10 哈尔滨工业大学 Moon base capable of utilizing moon resources in situ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333970A (en) * 1989-04-07 1994-08-02 Hesco Bastion Limited Building and shoring blocks
CN101054008A (en) * 2005-04-08 2007-10-17 哈尔滨工业大学 Rigidization method of thermo-setting composite film used in the space inflatable deployment structure
CN205742081U (en) * 2016-06-23 2016-11-30 杭州申华景观建设有限公司 A kind of protection against biological brick of river course slope protection and this bank protection of composition
CN214574672U (en) * 2021-03-30 2021-11-02 饶阳县泽润金属丝网有限公司 Hasp sand bag protecting wall

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333970A (en) * 1989-04-07 1994-08-02 Hesco Bastion Limited Building and shoring blocks
CN101054008A (en) * 2005-04-08 2007-10-17 哈尔滨工业大学 Rigidization method of thermo-setting composite film used in the space inflatable deployment structure
CN205742081U (en) * 2016-06-23 2016-11-30 杭州申华景观建设有限公司 A kind of protection against biological brick of river course slope protection and this bank protection of composition
CN214574672U (en) * 2021-03-30 2021-11-02 饶阳县泽润金属丝网有限公司 Hasp sand bag protecting wall

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