A telescopic rod driven foldable and unfoldable honeycomb structure shelter for lunar and earth applications and a method for manufacturing the same

Abstract

A telescopic rod driven foldable honeycomb structure lunar and terrestrial dual-purpose shelter and its preparation method can meet the demand of people for quickly building buildings of various sizes, has the characteristics of convenient and fast installation, high strength, light quality and the like, and can meet the demand of lunar base construction after the outer wall is filled with lunar soil. The outer wall of the shelter is obtained by using super-precision cutting and dislocation bolt connection, and various coatings are added to realize sound insulation and heat insulation functions. Compared with the traditional plate spliced shelter, the shelter has the problems of low cabin wall strength, large quality, inconvenient transportation and the like. The hexagonal honeycomb structure which can be folded and unfolded is used as the structural unit of the outer wall of the shelter, the structural unit can be repeatedly used, the quality is lighter, transportation and erection are facilitated, unmanned construction is used, labor cost and construction time are reduced, the problems of radial shrinkage in the middle section and four corner warping of general honeycomb structure shelters are overcome, the structural strength of the shelter is ensured, stability and aesthetic appearance are increased, and the shelter also has the performances of sound insulation, heat insulation, shielding high-energy particle radiation and the like.

Claims

1. A method for manufacturing a telescopic rod-driven, hinge-foldable, honeycomb structure dual-use land-moon shelter, characterized in that: The method is as follows: Step 1: Calculate the diagonal length of different square sheet materials using functions. Prepare functional structural units for the outer wall of the foldable honeycomb structure dual-use lunar and Earth-Earth cabin using square sheet materials with corresponding diagonal lengths as the base. Accurately draw several rays that can equally divide the circumcircle of the square sheet material using the center of the square sheet material as the reference point, and determine the radial thickness parameters of the outer wall. Accurately mark the position outline of the outer wall using a "grid" straight line group. Step 2: Using ultra-precision cutting methods, cut square plates along the bisectors and "grid" straight lines drawn in Step 1 above. Remove the plate portion in the middle of the "grid" and retain the plates that form the outer wall of the cabin. Then number and mark them. Step 3: Use hinges to sequentially hinge each square sheet material to the outer wall panels obtained in the above steps to obtain a honeycomb functional unit with a "U" shaped structure. Then align the honeycomb functional units layer by layer, and according to the honeycomb forming principle, stagger and bolt the honeycomb functional units of each layer to form the outer wall of the foldable honeycomb structure dual-use land and moon cabin. Step 4: Construct a telescopic rod using a rhomboid four-bar linkage as the structural unit; Step 5: Construct the upper and lower sealing ends of the modular container with a built-in electronic control system, connect the outer wall of the container to the sealing ends, and symmetrically install the four telescopic rods on the sealing ends near the four corners of the inner side of the container wall. Step Six: Prepare sound and heat insulation materials. Unfold the cabin obtained in the above steps, spray the sound and heat insulation materials on the inner side of the honeycomb hexagonal structure of the outer wall of the cabin and cure at room temperature to build a foldable inner and outer shell panel system. Spray the sound and heat insulation materials on both sides of the inner and outer shell panels and cure at room temperature.

2. The method according to claim 1, characterized in that: In step one, for any edge of the cabin, this function is an integer function with the origin at the midpoint of the edge; this function has the following characteristics: (1) it is an even function, (2) it has one and only one stationary point and two inflection points at the two ends of the stationary point, (3) ; Choose the following function and express the diagonal length as twice its function value. in, It is a function of diagonal length; The basic outer diameter; This is the outer diameter expansion ratio coefficient; This is the "shrinkage compensation" coefficient; Step size; Number the floors; For calibration coefficients; (2) +1) represents the number of layers in the board.

3. The method according to claim 1, characterized in that: In step one, square plates are used, and the marking lines are of two types: one is rays that divide the circumcircle of the square plate equally, and the other is a "grid" of straight lines that mark the bulkhead. The division should be 32 equal parts.

4. The method according to claim 3, characterized in that: In step one, when drawing the ray that divides the square plate into equal parts, the four axes of symmetry of the ray on the plate should precisely coincide with the four axes of symmetry of the square plate; the radial thickness parameter of the outer wall of the cabin should be determined so that the radial thickness of the outer wall is not greater than 1 / 9 of the side length of the square plate, but not less than 0.0885 times the side length.

5. The method according to claim 3, characterized in that: In step one, each small square in the four corners of the "tic-tac-toe" straight line group contains two bisectors. After drawing the "tic-tac-toe" straight line group, erase the bisectors in each small square in the four corners of the "tic-tac-toe".

6. The method according to claim 1, characterized in that: In step one, the square plate is made of one of the following materials: acrylic sheet, carbon fiber sheet, silicon nitride sheet, silicon carbide sheet, or aluminum alloy sheet. In step two, the ultra-precision cutting method is one of the following: ultra-precision cutting with diamond as the cutting head, ultra-precision femtosecond laser processing, or ultra-precision ultrasonic processing. In step three, the hinge is made of one of the following materials: acrylic, carbon fiber, silicon nitride, silicon carbide, aluminum alloy, or steel. The hinge is fixed to the plate by resin bonding or screw fastening.

7. The method according to claim 1, characterized in that: In step five, the control circuit controls the extension and retraction of the telescopic rod to indirectly control the folding and unfolding process of the container, and locks the telescopic rod and the outer wall of the container to the predetermined position.

8. The method according to claim 1, characterized in that: In step six, the sound and heat insulation material is sprayed inside the hexagonal honeycomb, and its thickness does not exceed the diameter of the hinge shaft used. The sound and heat insulation material that is uniformly sprayed on the inner and outer shell panel system has no thickness requirement. The sound and heat insulation material is made of epoxy resin (containing lead including elemental lead, lead oxide, lead tungstate, etc.) or polyurethane that is cured and doped with lead-containing glass microspheres.

9. The method according to claim 1, characterized in that: The inner and outer shell panel systems are stored and arranged in a folding and unfolding manner, and the inner and outer shell panel systems are locked at the edge of the end cap after unfolding.

10. A telescopic rod-driven, hinge-foldable honeycomb structure dual-use land and moon container prepared by the preparation method according to any one of claims 1 to 9.

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