Rapid prototyping reconfigurable wallboard structure based on multi-layer blocking and forming method thereof

Abstract

The application discloses a kind of based on multilayer blocking's quick forming reconfigurable wallboard structure and its forming method, belong to lightweight structure and quick construction technical field.In the structure, multiple multilayer blocking surface layer units are present, and layer is arranged in vacuum bag;Sandwich layer is arranged between every two adjacent multilayer blocking surface layer units;When being in non-vacuum state in vacuum bag, multiple multilayer blocking surface layer units are in soft and freely deformable state, and the morphology of sandwich layer is changed in coordination with the bending deformation of multiple multilayer blocking surface layer units;When vacuum bag is extracted from non-vacuum state to vacuum state, based on multilayer blocking's quick forming reconfigurable wallboard structure is converted from soft and freely deformable state to high stiffness fixed state.The application can realize the conversion of wallboard structure between soft and freely deformable state and high stiffness fixed state by regulating internal air pressure, has the advantages of strong installation flexibility, simple and quick forming, shape reversibility, convenient transportation and structural stability.

Description

Technical Field

[0001] This invention relates to the field of lightweight structures and rapid construction technology, and in particular to a rapid prototyping reconfigurable wall panel structure based on multi-layer blocking and its prototyping method. Background Technology

[0002] With the development of prefabricated construction and emergency construction technologies, lightweight, efficient, and rapidly deployable structural systems have attracted widespread attention. Traditional wall panel structures mostly use prefabricated concrete, metal, or composite material panels. Their forming process usually relies on templates, molds, or complex processing techniques, resulting in long manufacturing cycles and poor flexibility during transportation and on-site installation, making it difficult to meet the rapid construction needs of temporary buildings or complex environments. Sandwich structures, due to their excellent specific strength and specific stiffness, are widely used in building and engineering structures. Typical sandwich panels usually consist of a high-strength surface layer and a lightweight core material (such as foam, honeycomb structures, etc.), enhancing bending resistance by increasing the moment of inertia of the cross section. However, once such structures are formed, their geometry and mechanical properties are basically fixed, lacking reconfigurability and stiffness adjustment capabilities, making it difficult to adapt to the needs of transportation, construction, and variable usage scenarios. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, one objective of this invention is to propose a rapid prototyping reconfigurable wall panel structure based on multi-layer blocking, which can achieve the conversion between a soft, freely deformable state and a high-rigidity, fixed state of the wall panel structure by adjusting the internal air pressure. This structure offers advantages such as high installation flexibility, simple and rapid molding, reversible shape, convenient transportation, and structural stability.

[0004] According to a first aspect of the present invention, a rapid prototyping reconfigurable wall panel structure based on multi-layer blocking includes: A vacuum bag, wherein the vacuum bag is equipped with a valve; A multi-layered blocking surface unit, wherein there are multiple multi-layered blocking surface units, and multiple multi-layered blocking surface units are layered in the vacuum bag; A sandwich layer, wherein the sandwich layer is sandwiched between two adjacent multilayer blocking surface layer units; When the vacuum bag is in a non-vacuum state, the multiple multi-layer blocking surface units are in a soft and freely deformable state, and the shape of the sandwich layer changes in synergy with the bending deformation of the multiple multi-layer blocking surface units. When the vacuum bag is evacuated from a non-vacuum state to a vacuum state, the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking changes from a soft and freely deformable state to a high-rigidity fixed state.

[0005] When using the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure of this invention, the structure, which is in a non-vacuum state, is first stacked, rolled up, or bent. An external vacuum pump is connected via a valve to initiate vacuuming. During vacuuming, atmospheric pressure significantly increases the contact pressure between the blocking surfaces of the multi-layer blocking surface units, rapidly transforming the structure from a soft, freely deformable state to a high-rigidity, fixed state. Furthermore, after vacuuming, the structure becomes smaller and more compact, facilitating transportation. Upon arrival at the installation site, the valve is opened to release the vacuum, restoring the air pressure inside the vacuum bag to normal atmospheric pressure. This reduces the interlayer friction of the multi-layer blocking surface units, allowing the structure to return to its soft, freely deformable state, thus achieving restoration. During installation, the flexible, multi-layered, reconfigurable prototyping wall panel structure is bent, rolled, or stretched into the target shape (such as a flat partition wall, curved enclosure, or complex folded component) manually or guided by a simple temporary auxiliary template. During this process, the core layer changes in tandem with the bending deformation of the multi-layered, blocked surface unit. After shape adjustment, a vacuum pump is connected via a valve to quickly convert the multi-layered, reconfigurable prototyping wall panel structure into a high-rigidity, fixed-shape state. Once fixed, the multi-layered, reconfigurable prototyping wall panel structure can meet the load-bearing requirements of temporary buildings. If the shape of the multi-layered, reconfigurable prototyping wall panel structure needs to be changed, simply repeat the "restoration-shape change-vacuuming" steps.

[0006] Compared with existing technologies, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure of this invention has the following advantages: First, it offers high installation flexibility: When the vacuum bag is in a non-vacuum state, multiple multi-layer blocking surface units are in a soft and freely deformable state, and the shape of the sandwich layer changes synergistically with the bending deformation of multiple multi-layer blocking surface units. Therefore, in a non-vacuum state, by adjusting the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure to the target shape and then vacuuming, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure is converted into a high-rigidity fixed state, suitable for wall panels or plate-like components of various sizes and complex shapes, with strong flexibility and design freedom, which can meet the needs of different engineering applications. Second, it offers simple and rapid molding: This invention utilizes the multi-layer blocking principle, which can significantly increase the interlayer static friction force in a short time under vacuum, thereby improving the structural bending stiffness, enabling the component to be rapidly rigidified and molded, forming a lightweight temporary building load-bearing wall with a certain bending load-bearing capacity, greatly shortening the construction cycle and improving the safety of use. This invention offers several advantages. First, it allows for rapid shaping in a flexible state without relying on traditional templates, or with the aid of temporary templates. Second, it is reversible: the multi-layered blocking rapid prototyping reconfigurable wall panel structure can quickly switch between a flexible state and a high-rigidity shaped state simply by controlling the air pressure within the vacuum bag. This reversible molding process facilitates real-time adjustment of the structural form. Third, it is easy to transport: the multi-layered blocking rapid prototyping reconfigurable wall panel structure can be stacked, rolled up, or bent for easy transport. Furthermore, the vacuum-sealed structure becomes more compact, further facilitating transport. Fourth, it provides structural stability: the sandwich layer, sandwiched between adjacent multi-layered blocking surface units, increases the moment of inertia of the cross-section, enhances bending resistance, and achieves high specific strength and high specific stiffness. In summary, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure of this invention is suitable for wall panels or shell components of different sizes and shapes, and is particularly suitable for engineering scenarios that require rapid deployment, such as temporary buildings, emergency facilities and deployable structures. It can also be extended to aerospace structures, reconfigurable mechanical systems and industrial manufacturing.

[0007] In some embodiments, the multilayer blocking surface unit is composed of multiple layers of flexible sheets stacked together.

[0008] In some embodiments, the flexible sheet is a fiber fabric film or a thermoplastic polyurethane film.

[0009] In some embodiments, the sandwich layer is a lightweight material sandwich layer.

[0010] In some embodiments, the lightweight material sandwich layer is composed of several modular lightweight units spliced ​​together; when the vacuum bag is in a non-vacuum state, the several modular lightweight units can adapt their shape when the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure is subjected to external constraints or bending deformation of the overall structure.

[0011] In some embodiments, the modular lightweight unit is made of hollow structural materials, foam materials, or porous metamaterials.

[0012] In some embodiments, the lightweight material sandwich layer adopts a hexagonal structure, a briar-like structure, a circular interlocking structure, or a deformable metamaterial. The hexagonal structure is composed of several hexagonal modular lightweight units spliced ​​together, and its shape adaptability is achieved through in-plane splicing and rotation. The brie-like structure is composed of several rectangular modular lightweight units spliced ​​together, and its shape adaptability is achieved through interlayer misalignment and rotation. The circular concave-convex interlocking structure is composed of several circular modular lightweight units spliced ​​together, and the shape adaptation is achieved by geometric interlocking and rearranging the modular lightweight units. The deformable metamaterial is a one-piece molded structure that adapts to its shape through deformation via a geometric reconstruction mechanism of its cellular structure.

[0013] In some embodiments, there are two multilayer blocking surface units.

[0014] In some embodiments, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure is stacked, rolled up, or bent during transportation.

[0015] This invention also proposes a method for rapid prototyping of reconfigurable wall panel structures based on multi-layer blocking.

[0016] A method for forming a rapidly prototyping reconfigurable wall panel structure based on multi-layer blocking according to a second aspect of the present invention includes the following steps: The sandwich layer is placed between two adjacent multilayer blocking surface layer units and wrapped inside the vacuum bag; Without vacuuming, the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking is adjusted to the target shape; By using a valve to evacuate the vacuum bag, the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking is transformed from a soft and freely deformable state to a high-rigidity fixed state.

[0017] Since the molding method of the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking in the second aspect embodiment of the present invention utilizes the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking in the first aspect embodiment of the present invention, the molding method of the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking in the second aspect embodiment of the present invention has essentially the same technical effects as the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking in the first aspect embodiment of the present invention, and will not be described again here.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a rapidly prototyping reconfigurable wall panel structure based on multi-layer blocking in a deformed state; Figure 3 This is a three-dimensional schematic diagram of a rapidly prototyping reconfigurable wall panel structure based on multi-layer blocking in a deformed state; Figure 4a This is a schematic diagram of the multilayer blocking surface layer unit and the sandwich layer according to an embodiment of the present invention; Figure 4b yes Figure 4a Enlarged view of point A in the middle; Figure 5a This is a schematic diagram of a lightweight material sandwich layer with a hexagonal structure; Figure 5b This is a schematic diagram of another state of the lightweight material sandwich layer with a hexagonal structure; Figure 6a This is a schematic diagram of a lightweight material sandwich layer with a briar-like structure. Figure 6b This is a schematic diagram of another state of a lightweight material sandwich layer similar to a Brinell structure; Figure 7a This is a schematic diagram of a lightweight material sandwich layer with a circular interlocking structure. Figure 7b This is a schematic diagram of another state of the lightweight material sandwich layer with a circular interlocking structure.

[0020] Figure Labels Rapid prototyping reconfigurable wall panel structure based on multi-layer blocking 1000; vacuum bag 1; valve 101; multi-layer blocking surface unit 2; flexible sheet 201; sandwich layer 3; modular lightweight unit 301. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] The following is combined with Figures 1 to 7b This invention describes a rapid prototyping reconfigurable wall panel structure 1000 and method based on multi-layer blocking, according to an embodiment of the present invention.

[0023] like Figures 1 to 7b As shown, the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking according to the first aspect of the present invention includes a vacuum bag 1, a multi-layer blocking surface layer unit 2, and a sandwich layer 3.

[0024] Vacuum bag 1 is equipped with valve 101, which can be connected to an external vacuum pump. By opening valve 101 and the external vacuum pump, air can be extracted from the vacuum bag 1; alternatively, valve 101 can be opened to release air, restoring the internal air pressure of the vacuum bag 1 to normal pressure. In other words, the internal air pressure of vacuum bag 1 is adjustable.

[0025] Multiple multi-layer jamming surface units 2 are arranged in layers within the vacuum bag 1. Each multi-layer jamming surface unit 2 is composed of multiple thin-film surface materials. Based on the multi-layer jamming (MLJ) principle, the structural stiffness of the multi-layer jamming surface unit 2 is varied by controlling the air pressure. When the vacuum bag 1 is not evacuated, the friction between the jamming surfaces of the multi-layer jamming surface unit 2 is low, and the multi-layer jamming surface unit 2 exhibits flexibility and free deformation. When the vacuum bag 1 is evacuated, atmospheric pressure significantly increases the contact pressure between the jamming surfaces, thereby increasing the friction between them and restricting relative slippage. The multi-layer jamming surface unit 2 transforms from a flexible and freely deformable state to a high-stiffness, fixed state.

[0026] The sandwich layer 3 is sandwiched between two adjacent multi-layer blocking surface layer units 2; the sandwich layer 3 is used to enhance the bending load capacity of the 1000 rapid prototyping reconfigurable wall panel structure based on multi-layer blocking after vacuum forming.

[0027] When the vacuum bag 1 is in a non-vacuum state, the multiple multi-layer blocking surface unit 2 is in a soft and freely deformable state, and the shape of the sandwich layer 3 changes in synergy with the bending deformation of the multiple multi-layer blocking surface unit 2. In this way, the overall structure of the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking can be stacked, rolled up or bent for easy transportation. On the other hand, it can be adjusted to the target shape so that the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking can be converted into a high-rigidity shaping state of the target shape by vacuuming the vacuum bag 1.

[0028] When the vacuum bag 1 is evacuated from a non-vacuum state to a vacuum state, the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking transforms from a soft and freely deformable state to a high-rigidity fixed state. This process can complete the structural forming without relying on traditional rigid templates, and can also be combined with temporary auxiliary templates to achieve complex shape control.

[0029] When using the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure 1000 of this invention, the entire structure, which is in a non-vacuum state, is first stacked, rolled up, or bent. An external vacuum pump is connected via valve 101 to initiate vacuuming. During vacuuming, atmospheric pressure significantly increases the contact pressure between the blocking surfaces of the multi-layer blocking surface unit 2, rapidly transforming the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure 1000 from a soft, freely deformable state to a high-rigidity, fixed state. Furthermore, after vacuuming, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure 1000... The smaller, more compact size facilitates transportation. Upon arrival at the installation site, valve 101 is opened to release the vacuum, restoring the air pressure inside the vacuum bag 1 to normal pressure. This reduces the interlayer friction of the multi-layer blocking surface unit 2, allowing the rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking to return to a soft, freely deformable state, achieving restoration. During installation, the flexible, rapidly prototyping reconfigurable wall panel structure 1000 is bent, rolled, or stretched into the target shape (such as a flat partition wall, curved enclosure, or complex folded component) manually or through a simple temporary auxiliary template. During this process, the core layer 3 changes in tandem with the bending deformation of the multi-layer blocking surface unit 2. After the shape adjustment is completed, the vacuum pump is connected again through valve 101 to evacuate the vacuum, allowing the rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking to quickly transform into a high-rigidity, fixed-shape state. After fixing, the rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking can meet the load-bearing requirements of temporary buildings. If the shape of the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking needs to be changed, simply repeat the steps of "restoration-shape change-vacuuming".

[0030] Compared with existing technologies, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure 1000 of this invention has the following advantages: First, it offers high installation flexibility: When the vacuum bag 1 is in a non-vacuum state, the multiple multi-layer blocking surface unit 2 is in a soft and freely deformable state, and the shape of the sandwich layer 3 changes synergistically with the bending deformation of the multiple multi-layer blocking surface unit 2. Therefore, in a non-vacuum state, by adjusting the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure 1000 to the target shape and then vacuuming it, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure 1000 is converted into a high-rigidity fixed state, suitable for wall panels or plate-like components of various sizes and complex shapes, with strong flexibility and design freedom, which can meet the needs of different engineering applications. Second, it offers simple and rapid molding: This invention utilizes the multi-layer blocking principle, which can significantly increase the interlayer static friction force in a short time under vacuum, thereby improving the structural bending stiffness, enabling the component to be rapidly rigidified and molded, forming a lightweight temporary building load-bearing wall with a certain bending load-bearing capacity, greatly shortening the construction cycle and improving the safety of use. This invention offers several advantages. First, it allows for rapid shaping in a flexible state without relying on traditional templates, or with the aid of temporary templates. Second, it is reversible: the multi-layered blocking rapid prototyping reconfigurable wall panel structure 1000 can quickly switch between a flexible state and a high-rigidity shaped state simply by controlling the air pressure within the vacuum bag 1. This reversible molding process facilitates real-time structural adjustments. Third, it is easy to transport: the multi-layered blocking rapid prototyping reconfigurable wall panel structure 1000 can be stacked, rolled up, or bent for easy transport. Furthermore, the vacuum-sealed multi-layered blocking rapid prototyping reconfigurable wall panel structure 1000 becomes more compact, further facilitating transport. Fourth, it provides structural stability: the sandwich layer 3, sandwiched between adjacent multi-layered blocking surface units 2, increases the moment of inertia of the cross-section, enhances bending resistance, and achieves high specific strength and high specific stiffness. In summary, the multi-layer blocking-based rapid prototyping reconfigurable wall panel structure 1000 of this invention is applicable to wall panels or shell components of different sizes and shapes, and is particularly suitable for engineering scenarios that require rapid deployment, such as temporary buildings, emergency facilities and deployable structures. It can also be extended to aerospace structures, reconfigurable mechanical systems and industrial manufacturing.

[0031] In some embodiments, such as Figure 4b As shown, the multi-layer blocking surface unit 2 is composed of multiple layers of flexible sheets 201 stacked together. The multi-layer flexible sheets 201 are highly malleable and easy and quick to form. The stacking of multiple layers of flexible sheets 201 increases the friction area between the blocking surface layers.

[0032] In some embodiments, the flexible sheet 201 is a fiber fabric film or a thermoplastic polyurethane film. Fiber fabrics and TPU films possess high toughness, bendability, and fatigue resistance, and also have high surface roughness, generating greater friction and resulting in a more stable structure.

[0033] In some embodiments, the sandwich layer 3 is a lightweight material sandwich layer. The lightweight material sandwich layer makes the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking lighter, which is beneficial for transportation, handling and installation.

[0034] In some embodiments, the lightweight material sandwich layer is composed of several modular lightweight units 301 spliced ​​together; such as Figures 5a to 7b As shown, when the vacuum bag 1 is in a non-vacuum state, several modular lightweight units 301 can adapt their shape when the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking is subjected to external constraints or bending deformation of the overall structure. Figures 5a to 7b The lightweight material sandwich layer can deform into various shapes under external constraints, which is highly flexible; and the lightweight material sandwich layer is spliced ​​together with several modular lightweight units 301, which is conducive to processing and mass production.

[0035] In some embodiments, the modular lightweight unit 301 is made of hollow structural materials, foam materials, or porous metamaterials, which have low density and make the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blockage lighter.

[0036] In some embodiments, such as Figure 5a and Figure 5b As shown, the lightweight material sandwich layer adopts a hexagonal structure, a briar-like structure, a circular interlocking structure, or a deformable metamaterial; at the same time, it can achieve rapid construction of various forms through modular design.

[0037] The hexagonal structure is constructed from several modular lightweight hexagonal units 301, achieving shape adaptation through in-plane splicing and rotation. The hexagonal structure offers the following advantages: First, it exhibits good deformation continuity, avoiding obvious inflection points on the exterior of the vacuum bag 1, making it suitable for smooth curved surfaces. Second, it demonstrates good anisotropic uniformity, even distribution of mechanical properties, and high specific stiffness, resulting in structural stability. Third, the deformation of the hexagonal structure primarily involves geometric rotation, exhibiting non-random behavior and controllable deformation.

[0038] like Figure 6a and Figure 6bAs shown, the briar-like structure is composed of several rectangular modular lightweight units 301 spliced ​​together, achieving shape adaptation through interlayer misalignment and rotation. The use of a briar-like structure for the lightweight material sandwich layer has the following advantages: First, the briar-like structure can adapt well to bending and has a strong ability to adapt to large curvatures, allowing for a larger bending curvature in the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking. Second, the number of layers and thickness of the briar-like structure can be easily adjusted, thereby achieving the purpose of adjusting the stiffness of the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking. Third, based on the principle of multi-layer blocking, interlayer friction also occurs between the several rectangular modular lightweight units 301 in the briar-like structure, resulting in structural stability.

[0039] like Figure 7a and Figure 7b As shown, the circular concave-convex interlocking structure is composed of several circular modular lightweight units 301 spliced ​​together. It achieves shape adaptation through geometric interlocking and rearrangement of the modular lightweight units 301. The circular concave-convex interlocking structure has the following advantages: First, it has a strong ability to adapt to complex shapes; several circular modular lightweight units 301 can be rearranged in multiple directions to adapt to irregular curved surfaces. Second, it has good local stability; the concave-convex interlocking structure on several circular modular lightweight units 301 can provide geometric constraints, which can suppress excessive slippage between the modular lightweight units 301. Third, it has reliable structure: the circular concave-convex interlocking structure can be columnar, and the modular lightweight units 301 form a continuous contact force transmission system, which is beneficial for the transmission of compressive and contact forces, resulting in uniform force distribution and structural reliability. Guided by geometric configuration, it avoids the uncertainty caused by random rearrangement.

[0040] Deformable metamaterials are monolithic structures that adapt to different shapes through the extrusion and bending deformation of hollow unit structures. Deformable metamaterials offer the following advantages: First, they possess a rich variety of deformation modes, enabling bending, compression, shearing, and multi-steady-state deformation behaviors, resulting in high installation flexibility. Second, they offer a wide range of performance control, allowing for adjustment of stiffness, deformation capacity, and energy absorption characteristics over a broad range. Third, the combined effect of deformation between hollow unit structures and interlayer friction locking facilitates both stiffness variation and shape fixation, resulting in a stable and efficient structure.

[0041] In some embodiments, there are two multilayer blocking surface unit 2. This structure is simple, has the lowest manufacturing cost, is lighter, and is suitable for scenarios with relatively low load-bearing requirements.

[0042] In some embodiments, the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking is stacked, rolled up, or bent during transportation, making it easier to transport.

[0043] The present invention also proposes a molding method for a rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking.

[0044] A method for forming a rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking according to a second aspect embodiment of the present invention includes the following steps: The sandwich layer 3 is placed between two adjacent multilayer blocking surface layer units 2 and wrapped in a vacuum bag 1; Without vacuuming, the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking is adjusted to the target shape; Vacuum is drawn into the vacuum bag 1 through valve 101, so that the rapid prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking is transformed from a soft and freely deformable state to a high-rigidity fixed state.

[0045] Since the molding method of the rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking in the second aspect embodiment of the present invention utilizes the rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking in the first aspect embodiment of the present invention, the molding method of the rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking in the second aspect embodiment of the present invention has essentially the same technical effects as the rapidly prototyping reconfigurable wall panel structure 1000 based on multi-layer blocking in the first aspect embodiment of the present invention, and will not be described again here.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rapid prototyping reconfigurable wall panel structure based on multi-layer blocking, characterized in that, include: A vacuum bag, wherein the vacuum bag is equipped with a valve; A multi-layered blocking surface unit, wherein there are multiple multi-layered blocking surface units, and multiple multi-layered blocking surface units are layered in the vacuum bag; A sandwich layer, wherein the sandwich layer is sandwiched between two adjacent multilayer blocking surface layer units; When the vacuum bag is in a non-vacuum state, the multiple multi-layer blocking surface units are in a soft and freely deformable state, and the shape of the sandwich layer changes in synergy with the bending deformation of the multiple multi-layer blocking surface units. When the vacuum bag is evacuated from a non-vacuum state to a vacuum state, the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking changes from a soft and freely deformable state to a high-rigidity fixed state.

2. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 1, characterized in that, The multi-layer blocking surface unit is composed of multiple layers of flexible sheets stacked together.

3. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 2, characterized in that, The flexible sheet is a fiber fabric film or a thermoplastic polyurethane film.

4. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 2, characterized in that, The sandwich layer is made of lightweight material.

5. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 4, characterized in that, The lightweight material sandwich layer is composed of several modular lightweight units spliced ​​together; when the vacuum bag is in a non-vacuum state, the modular lightweight units can adapt to the shape of the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking when it is subjected to external constraints or bending deformation of the overall structure.

6. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 5, characterized in that, The modular lightweight unit is made of hollow structural materials, foam materials, or porous metamaterials.

7. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 5, characterized in that, The lightweight material sandwich layer adopts a hexagonal structure, a briar-like structure, a circular interlocking structure, or a deformable metamaterial. The hexagonal structure is composed of several hexagonal modular lightweight units spliced ​​together, and its shape adaptability is achieved through in-plane splicing and rotation. The brie-like structure is composed of several rectangular modular lightweight units spliced ​​together, and its shape adaptability is achieved through interlayer misalignment and rotation. The circular concave-convex interlocking structure is composed of several circular modular lightweight units spliced ​​together, and the shape adaptation is achieved by geometric interlocking and rearranging the modular lightweight units. The deformable metamaterial is a one-piece molded structure that adapts to its shape through deformation via a geometric reconstruction mechanism of its cellular structure.

8. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 4, characterized in that, There are two multilayer blocking surface units.

9. The rapid prototyping reconfigurable wall panel structure based on multi-layer blocking according to claim 1, characterized in that, The aforementioned rapid prototyping reconfigurable wall panel structure based on multi-layer blocking is stacked, rolled up, or bent during transportation.

10. A method for forming a rapidly prototyping reconfigurable wall panel structure based on multi-layer blocking as described in any one of claims 1 to 9, characterized in that, Includes the following steps: The sandwich layer is placed between two adjacent multilayer blocking surface layer units and wrapped inside the vacuum bag; Without vacuuming, the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking is adjusted to the target shape; By using a valve to evacuate the vacuum bag, the rapid prototyping reconfigurable wall panel structure based on multi-layer blocking is transformed from a soft and freely deformable state to a high-rigidity fixed state.

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