Foldable and deployable modular concrete structure and its construction method
By designing a foldable and deployable modular concrete structure and adopting a multi-layered overlapping wall panel folding method, the space occupation and flexibility issues of modular concrete structures in transportation and construction are solved, achieving efficient transportation and rapid construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
- Filing Date
- 2026-04-30
- Publication Date
- 2026-06-12
Smart Images
Figure CN122190382A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of building structure technology, specifically relating to a foldable, unfoldable, and easily transportable modular concrete structure and its construction method. Background Technology
[0002] With the continuous development of industrialized construction and prefabricated building technologies, modular buildings have been widely used in temporary, emergency, and rapid construction fields due to their advantages such as short construction cycles, controllable quality, and minimal on-site work. Existing modular buildings typically use standardized boxes or components, prefabricated in factories and then transported to the construction site for overall hoisting or assembly. However, traditional modular building units are large in size during transport, occupying significant transport space and requiring stringent transport conditions, leading to increased transportation costs, especially in remote areas or emergency situations where efficient deployment is difficult. Furthermore, existing modular buildings still rely on large hoisting equipment on construction sites, limiting construction flexibility and hindering rapid assembly in complex environments or confined spaces.
[0003] Furthermore, the spatial form of existing modular concrete structures is relatively fixed, making it difficult to quickly adjust or repeatedly disassemble and reassemble according to usage needs, resulting in a low reuse rate. In application scenarios requiring frequent relocation or temporary use, such as disaster emergency rescue, temporary medical facilities, or temporary office buildings, existing structural forms struggle to balance transportation efficiency, construction convenience, and usage flexibility.
[0004] Therefore, there is an urgent need for a modular concrete structure that occupies little space during transportation, can be quickly deployed on the construction site, and forms a stable usable space, in order to solve the problems of low transportation efficiency, insufficient deployment flexibility, and limited reusability in existing technologies. Summary of the Invention
[0005] To address the aforementioned problems in the existing technology, this invention provides a foldable, unfoldable, and easily transportable modular concrete structure and its construction method. The technical problem to be solved by this invention is achieved through the following technical solution: This invention provides a foldable, unfoldable, and easily transportable modular concrete structure, comprising: a base plate, front and rear wall panels, and left and right wall panels; The front and rear wall panels and the left and right wall panels are respectively arranged around the base plate; The front and rear wall panels and the left and right wall panels are all provided with folding dividing areas along their height direction, and the front and rear wall panels and the left and right wall panels are divided into upper wall panel parts and lower wall panel parts through the folding dividing areas; A first folding connector is provided between the front and rear wall panels and the bottom plate; a second folding connector is provided at the folding boundary area of the front and rear wall panels and the left and right wall panels respectively; and the bottom of the left and right wall panels is connected to the bottom plate through a third folding connector. The front and rear wall panels are configured such that: the lower wall panel is flipped outward around the connection with the base plate, and the upper wall panel is folded inward around its folding boundary area; at least a portion of the folded upper wall panel and lower wall panel overlap and adhere to the edge area of the base plate. The left and right wall panels are configured such that they are flipped inward around the connection point with the base plate, and then folded outward along at least one folding boundary area along their height direction to form a multi-layered structure and are stacked on top of the base plate.
[0006] In one embodiment of the present invention, the modular concrete structure has an unfolded state and a folded state; in the unfolded state, the base plate, the front and rear wall panels, and the left and right wall panels enclose and form a modular unit; in the folded state, the front and rear wall panels and the left and right wall panels are folded and stacked on the base plate according to a preset path. In the folded state, the overall thickness of the front and rear wall panels and the left and right wall panels stacked together is not greater than the thickness of the base plate, and the upper surfaces of the front and rear wall panels and the left and right wall panels are flush after folding.
[0007] In one embodiment of the present invention, the first folding connector is a curved telescopic structure, which includes: a fixed end and a telescopic end; the fixed end is embedded in the bottom plate, and the telescopic end is connected to the bottom of the front and rear wall panels through a strip steel plate; the bottom plate is provided with a receiving cavity that matches the telescopic end for accommodating the telescopic end in the folded state.
[0008] In one embodiment of the present invention, the folding boundary area of the front and rear wall panels is located at a position of 0.4 to 0.6 times the height of the wall panels.
[0009] In one embodiment of the present invention, at least two sets of the second folding connectors are provided at horizontal intervals in the folding boundary area of the front and rear wall panels; at least three sets of the second folding connectors are provided at horizontal intervals in the folding boundary area of the left and right wall panels.
[0010] In one embodiment of the present invention, the second folding connector is a rolling guide structure, which includes: a first guide groove, a first alloy steel rod and a first roller; The first guide groove is embedded in the concrete layer of the front and rear wall panels or the left and right wall panels. The first alloy steel rod is provided with the first roller at both ends, and the first roller is in rolling cooperation with the first guide groove. Both ends of the first alloy steel rod move along the first guide groove to achieve the folding of the front and rear wall panels or the left and right wall panels.
[0011] In one embodiment of the present invention, the third folding connector is a rolling guide structure, which includes: a second guide groove, a second alloy steel rod and a second roller; The second guide groove is embedded in the concrete layer of the left and right wall panels, and one end of the second alloy steel rod is provided with the second roller, which is in rolling cooperation with the second guide groove. The other end of the second alloy steel rod is a free end, which disengages from the second guide groove when the left and right wall panels are flipped.
[0012] In one embodiment of the present invention, the front and rear wall panels and the left and right wall panels have the same thickness, and their thickness ranges from 80 to 120 mm. The thickness of the front and rear wall panels and the left and right wall panels is no greater than 1 / 2 of the thickness of the base plate.
[0013] In one embodiment of the present invention, a top plate is further included, which is disposed on top of the front and rear wall panels and the left and right wall panels in the unfolded state; the top plate is provided with a reserved connection hole, and the top of the front and rear wall panels and the left and right wall panels are respectively provided with through holes, and the top plate is connected to the front and rear wall panels and the left and right wall panels by means of bidirectional bolts passing through the reserved connection hole and the through hole.
[0014] This invention also provides a construction method for a foldable, unfoldable, and easily transportable modular concrete structure, which is used to realize the above-mentioned foldable, unfoldable, and easily transportable modular concrete structure, including the following steps: Step 1: Precast the base slab, front and rear wall panels, left and right wall panels and top slab separately, and pre-embed folding connectors; Step 2: Flip the lower wall panel of the front and rear wall panels outward around the connection with the base plate, and fold the upper wall panel of the front and rear wall panels inward around their folding boundary area, so that at least part of the folded upper wall panel and lower wall panel overlap and adhere to the edge area of the base plate. The left and right wall panels are flipped inward around the connection with the base plate, and then folded outward along at least one folding boundary area along their height direction, and stacked on top of the base plate. Step 3: Hoist the modular concrete structure in its folded state to the preset installation position and temporarily fix it; Step 4: Sequentially unfold the front and rear wall panels and the left and right wall panels, rotate them around the corresponding folding connectors to the unfolded state, correct the verticality and position, and limit and lock each folding connector; Step 5: Hoist the top plate as a whole to the top of the modular unit formed by the front and rear wall panels, the left and right wall panels and the bottom plate, and fix it with bidirectional bolts to complete the construction of the modular concrete structure.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention relates to a foldable, unfoldable, and easily transportable modular concrete structure. The front and rear wall panels employ a folding method where the lower part flips outward and the upper part folds inward. The left and right wall panels are folded inward as a whole, then outward, forming a multi-layered composite structure. The different folding trajectories of the two types of wall panels allow the components to form a staggered overlapping relationship in the folded state, significantly reducing the overall transport volume and improving transport efficiency and adaptability. Furthermore, on the construction site, a stable enclosure unit can be formed simply by unfolding the wall panels step by step along a preset path and locking the connectors, eliminating reliance on large hoisting equipment and greatly improving construction efficiency and deployment flexibility.
[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the unfolded state of a modular concrete structure that can be folded, unfolded, and easily transported, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the folded state of the modular concrete structure that can be folded, unfolded, and easily transported according to an embodiment of the present invention. Figure 3 This is a schematic diagram (folded state) of the first folding connector provided in an embodiment of the present invention; Figure 4 This is a schematic diagram (unfolded state) of the first folding connector provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the second folding connector provided in an embodiment of the present invention; Figure 6 This is a cross-sectional view of the second folding connector provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the third folding connector provided in an embodiment of the present invention; Figure 8 This is a cross-sectional view of the third folding connector provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the folding process of the front and rear wall panels provided in an embodiment of the present invention; Figure 10This is a schematic diagram of the folding process of the left and right wall panels provided in an embodiment of the present invention; Figure 11 This is a schematic diagram illustrating the folding process of the left and right wall panels provided in an embodiment of the present invention. Figure 12 This is a schematic diagram of the top plate provided in an embodiment of the present invention; Figure 13 This is a flowchart of the construction method for a modular concrete structure that can be folded, unfolded, and easily transported, as provided in an embodiment of the present invention.
[0018] Reference numerals: 1-Base plate; 2-Front and rear wall panels; 3-Left and right wall panels; 4-First folding connector; 5-Second folding connector; 51-First guide groove; 52-First alloy steel rod; 53-First roller; 6-Third folding connector; 61-Second guide groove; 62-Second alloy steel rod; 63-Second roller; 7-Top plate; 71-Reserved connection hole; 8-Strip steel plate. Detailed Implementation
[0019] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following, in conjunction with the accompanying drawings and specific embodiments, provides a detailed description of a foldable, unfoldable, and easily transportable modular concrete structure and its construction method based on the present invention.
[0020] The foregoing and other technical contents, features, and effects of the present invention will be clearly presented in the following detailed description of specific embodiments in conjunction with the accompanying drawings. Through the description of the specific embodiments, a more in-depth and concrete understanding can be gained of the technical means and effects adopted by the present invention to achieve its intended purpose. However, the accompanying drawings are for reference and illustration only and are not intended to limit the technical solutions of the present invention.
[0021] Example 1 like Figures 1 to 12 As shown, Figure 1 This is a schematic diagram of the unfolded state of a modular concrete structure that can be folded, unfolded, and easily transported, according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the folded state of the modular concrete structure that can be folded, unfolded, and easily transported according to an embodiment of the present invention. Figure 3 This is a schematic diagram (folded state) of the first folding connector provided in an embodiment of the present invention; Figure 4 This is a schematic diagram (unfolded state) of the first folding connector provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the second folding connector provided in an embodiment of the present invention; Figure 6 This is a cross-sectional view of the second folding connector provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the third folding connector provided in an embodiment of the present invention; Figure 8This is a cross-sectional view of the third folding connector provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the folding process of the front and rear wall panels provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the folding process of the left and right wall panels provided in an embodiment of the present invention; Figure 11 This is a schematic diagram illustrating the folding process of the left and right wall panels provided in an embodiment of the present invention. Figure 12 This is a schematic diagram of the top plate provided in an embodiment of the present invention.
[0022] This embodiment provides a foldable, unfoldable, and easily transportable modular concrete structure. The structure mainly includes a base plate 1, front and rear wall panels 2, and left and right wall panels 3; the front and rear wall panels 2 and the left and right wall panels 3 are respectively arranged around the base plate 1. In the unfolded state, the base plate 1, the front and rear wall panels 2, and the left and right wall panels 3 together enclose the modular unit.
[0023] In this embodiment, the front and rear wall panels 2 and the left and right wall panels 3 are all provided with folding dividing areas along their height direction, which divide the front and rear wall panels 2 and the left and right wall panels 3 into upper wall panel parts and lower wall panel parts, respectively. A first folding connector 4 is provided between the front and rear wall panels 2 and the bottom plate 1. A second folding connector 5 is provided at the folding dividing area of the front and rear wall panels 2, and a second folding connector 5 is also provided at the folding dividing area of the left and right wall panels 3. The bottom of the left and right wall panels 3 is connected to the bottom plate 1 through a third folding connector 6. The first folding connector 4, the second folding connector 5, and the third folding connector 6 together constitute the folding motion mechanism of the wall panels, enabling each wall panel to fold and unfold according to a preset differentiated path.
[0024] Specifically, the folding motion of the front and rear wall panels 2 is configured as follows: the lower wall panel flips outward around its connection with the base plate 1, and the upper wall panel folds inward around its folding boundary area. Through two folding motions in different directions, at least some areas of the folded upper and lower wall panels overlap each other and fit against the edge area of the base plate 1, thereby compressing the structural dimensions along the length of the module. The folding motion of the left and right wall panels 3 is configured as follows: the wall panels first flip inward around their connection with the base plate 1, and then fold outward along at least one folding boundary area set in their height direction. Through the motion of first folding inward as a whole and then folding outward in segments, the left and right wall panels 3 finally form a multi-layered stacked structure and are stacked on top of the base plate 1, thereby further compressing the volume of the overall structure in both the height and width directions.
[0025] By employing a folding method with different folding paths for the front and rear wall panels 2 and the left and right wall panels 3, the modular concrete structure of this embodiment can switch between an unfolded state and a folded state. In the folded state, the front and rear wall panels 2 and the left and right wall panels 3 are folded and stacked on the base plate 1 according to a preset path.
[0026] In one optional embodiment, the overall thickness of the front and rear wall panels 2 and the left and right wall panels 3 stacked in the folded state is no greater than the thickness of the base plate 1, and the upper surfaces of the front and rear wall panels 2 and the left and right wall panels 3 remain flush after folding. This structure allows multiple folded module units to be stably stacked, further improving space utilization and transportation safety during batch transport.
[0027] Please see further. Figure 3 The first folding connector 4 adopts a curved telescopic structure, which includes a fixed end and a telescopic end. The fixed end is embedded inside the base plate 1 to ensure the reliability of the connection; the telescopic end is fixedly connected to the bottom of the front and rear wall panels 2 through a strip steel plate 8. A receiving cavity matching the shape of the telescopic end is provided inside the base plate 1. When the structure is in the unfolded state, the telescopic end can be retracted into this receiving cavity without affecting the flatness and stress on the bottom of the wall panel. When the structure is folded, the telescopic end extends from the cavity and moves along a curved trajectory to adapt to the angle changes and length compensation requirements generated during the flipping of the front and rear wall panels 2.
[0028] Please see Figure 4 The second folding connector 5 is a rolling guide structure, which is located at the folding boundary areas of the front and rear wall panels 2 and the left and right wall panels 3. It includes a first guide groove 51, a first alloy steel rod 52, and first rollers 53. The first guide groove 51 is embedded in the concrete layer of the front and rear wall panels 2 or the left and right wall panels 3. Both ends of the first alloy steel rod 52 are equipped with first rollers 53, which roll in conjunction with the first guide groove 51. During the folding or unfolding of the wall panels, both ends of the first alloy steel rod 52 move along the first guide groove 51. By restricting the movement trajectory of the rollers through the guide groove, the wall panels are guided to fold smoothly along a predetermined path, effectively avoiding interference between components.
[0029] Preferably, the width of the first guide groove 51 is 2-5 mm greater than the diameter of the first roller 53, and the depth of the first guide groove 51 is 1.2-1.5 times the diameter of the first roller 53.
[0030] Please see Figure 5 The third folding connector 6 also adopts a rolling guide structure, specifically located at the connection between the bottom of the left and right wall panels 3 and the base plate 1. It includes a second guide groove 61, a second alloy steel rod 62, and a second roller 63. The second guide groove 61 is embedded inside the concrete layer of the left and right wall panels 3. One end of the second alloy steel rod 62 is equipped with the second roller 63, which rolls in conjunction with the second guide groove 61. Unlike the second folding connector 5, the other end of the second alloy steel rod 62 in the third folding connector 6 is a free end. When the left and right wall panels 3 are flipped inward, the free end can disengage from the second guide groove 61, allowing the wall panels to complete a large-angle flipping motion. When unfolded and reset, it can re-engage with the second guide groove 61 to achieve accurate positioning.
[0031] Preferably, the width of the second guide groove 61 is 2-5 mm greater than the diameter of the second roller 63, and the depth of the second guide groove 61 is 1.2-1.5 times the diameter of the second roller 63.
[0032] In one optional embodiment, the folding boundary of the front and rear wall panels 2 is located at 0.4 to 0.6 times their wall panel height to balance the rationality of stress distribution and folding convenience of each segmented part of the wall panel. At least two sets of second folding connectors 5 are spaced horizontally at the folding boundary of the front and rear wall panels 2 to ensure lateral stability during wall panel folding; at least three sets of second folding connectors 5 are spaced horizontally at the folding boundary of the left and right wall panels 3 to accommodate their multi-segment reverse folding movement requirements. Preferably, the thickness of the front and rear wall panels 2 and the left and right wall panels 3 is equal, ranging from 80 to 120 mm, and the thickness of the front and rear wall panels 2 and the left and right wall panels 3 is no greater than half the thickness of the base plate 1. This ensures sufficient rigidity of the wall panels while allowing them to be completely overlapped within the thickness range of the base plate 1 in the folded state, achieving compact storage.
[0033] Please see Figure 9 The modular concrete structure of this embodiment also includes a top plate 7, which is disposed on top of the front and rear wall panels 2 and the left and right wall panels 3 in the unfolded state to form a closed interior space. Specifically, the top plate 7 is provided with reserved connection holes 71, and the tops of the front and rear wall panels 2 and the left and right wall panels 3 are respectively provided with through holes. After the wall panels are unfolded on the construction site, the top plate 7 is fastened to the front and rear wall panels 2 and the left and right wall panels 3 by passing bidirectional bolts through the reserved connection holes 71 and the through holes on the top of the wall panels. Furthermore, the top plate 7 can be a precast top plate of reinforced concrete structure or a prefabricated steel structure top plate according to actual usage requirements. The precast top plate of reinforced concrete structure is suitable for long-term use scenarios and has good integrity and durability; the top plate of prefabricated steel structure is lightweight and easy to assemble and disassemble, and is suitable for temporary buildings or application scenarios that require frequent relocation.
[0034] This invention relates to a foldable, unfoldable, and easily transportable modular concrete structure. The front and rear wall panels employ a folding method where the lower part flips outward and the upper part folds inward. The left and right wall panels are folded inward as a whole, then outward, forming a multi-layered composite structure. The different folding trajectories of the two types of wall panels allow the components to form a staggered overlapping relationship in the folded state, significantly reducing the overall transport volume and improving transport efficiency and adaptability. Furthermore, on the construction site, a stable enclosure unit can be formed simply by unfolding the wall panels step by step along a preset path and locking the connectors, eliminating reliance on large hoisting equipment and greatly improving construction efficiency and deployment flexibility.
[0035] Example 2 Please see Figure 13 , Figure 13 This is a flowchart of the construction method for a modular concrete structure that can be folded, unfolded, and easily transported, as provided in an embodiment of the present invention.
[0036] This embodiment provides a construction method for a foldable, unfoldable, and easily transportable modular concrete structure, used to realize the foldable, unfoldable, and easily transportable modular concrete structure in Embodiment 1. The construction method specifically includes the following steps: Step 1: Precast the base plate 1, front and rear wall panels 2, left and right wall panels 3 and top plate 7 respectively, and pre-embed folding connectors; Step 2: Fold the lower wall panel of the front and rear wall panels 2 outward around the connection with the base plate 1, and fold the upper wall panel of the front and rear wall panels 2 inward around its folding boundary area, so that at least part of the folded upper wall panel and lower wall panel overlap and adhere to the edge area of the base plate 1. The left and right wall panels 3 are flipped inward around the connection with the base plate 1, and then folded outward along at least one folding boundary area set in the height direction, and stacked on top of the base plate 1. Step 3: Hoist the modular concrete structure in its folded state to the preset installation position and temporarily fix it; Step 4: Sequentially unfold the front and rear wall panels 2 and the left and right wall panels 3, rotating them around the corresponding folding connectors to the unfolded state, correcting the verticality and position, and locking each folding connector to its limit position. Step 5: Hoist the top plate 7 as a whole to the top of the modular unit formed by the front and rear wall panels 2, left and right wall panels 3 and bottom plate 1, and fix it with bidirectional bolts to complete the construction of the modular concrete structure.
[0037] To enable those skilled in the art to fully understand and implement this invention, the specific implementation principle of this invention will be further explained below in conjunction with a specific application scenario.
[0038] First, the base plate 1, front and rear wall panels 2, left and right wall panels 3, and top plate 7 are prefabricated in the factory. During the prefabrication process, the fixed end of the first folding connector 4 is embedded inside the base plate 1, and a matching receiving cavity is reserved in the base plate 1. Strip steel plates 8 are pre-embedded at the bottom of the front and rear wall panels 2, and the telescopic ends of the first folding connector 4 are connected to the strip steel plates 8. The first guide groove 51 of the second folding connector 5 is pre-embedded at the folding boundary areas of the front and rear wall panels 2 and the left and right wall panels 3. The second guide groove 61 of the third folding connector 6 is pre-embedded at the bottom of the left and right wall panels 3. Connection holes 71 and through holes are reserved at the top of the top plate 7 and the top of the wall panels. After the reinforcement binding and formwork installation are completed, concrete is poured, and the formwork is demolded after the concrete has cured to the design strength.
[0039] Next, the lower wall panels of the front and rear wall panels 2 are folded outward around their connection with the base plate 1, and the upper wall panels of the front and rear wall panels 2 are folded inward around their folding demarcation area, so that at least part of the folded upper and lower wall panels overlap and adhere to the edge area of the base plate 1. At the same time, the left and right wall panels 3 are folded inward around their connection with the base plate 1, and then folded outward along at least one folding demarcation area along their height direction, forming a multi-layered structure and stacked on top of the base plate 1. After folding, the structure is bound and fixed to form a compact transport unit.
[0040] Next, the modular concrete structure in its folded state is hoisted to the pre-set installation position on the construction site, temporarily fixed after foundation leveling, and the structure is then leveled.
[0041] Subsequently, the front and rear wall panels 2 and the left and right wall panels 3 are unfolded sequentially, rotating around their corresponding first folding connector 4, second folding connector 5, and third folding connector 6 to a vertically unfolded state. During unfolding, the telescopic end of the first folding connector 4 moves along a curved trajectory, while the rollers of the second folding connector 5 and the third folding connector 6 roll and guide along preset guide grooves. After the wall panels are fully unfolded, their verticality and position are corrected, and each folding connector is locked to ensure structural stability. Temporary support components can be installed for auxiliary fixation if necessary.
[0042] Finally, the top plate 7 is hoisted as a whole onto the top of the modular unit formed by the front and rear wall panels 2, the left and right wall panels 3 and the bottom plate 1 using a lifting device. The two-way bolts are then passed through the reserved connection holes 71 of the top plate 7 and the through holes at the top of the wall panels in sequence, and the bolts are tightened to fix the top plate 7. This completes the on-site construction of the modular concrete structure.
[0043] Understandably, when the structure's service life ends or it needs to be moved, it can be disassembled in the reverse order of the installation process described above. That is, the top plate 7 is removed in sequence, the limit locks of each folding connector are released, and each wall panel is folded up to the folded state according to the predetermined folding path. Then, the folded module unit is hoisted and transported to the next location of use to achieve the reuse of the structure.
[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes said element. Terms such as "connected" or "linked" are not limited to physical or mechanical connections but can include electrical connections, whether direct or indirect. The orientations or positional relationships indicated by terms such as "upper," "lower," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.
[0045] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.
Claims
1. A foldable, unfoldable, and easily transportable modular concrete structure, characterized in that, include: Base plate, front and rear wall panels, and left and right wall panels; The front and rear wall panels and the left and right wall panels are respectively arranged around the base plate; The front and rear wall panels and the left and right wall panels are all provided with folding dividing areas along their height direction, and the front and rear wall panels and the left and right wall panels are divided into upper wall panel parts and lower wall panel parts through the folding dividing areas; A first folding connector is provided between the front and rear wall panels and the bottom plate; a second folding connector is provided at the folding boundary area of the front and rear wall panels and the left and right wall panels respectively; and the bottom of the left and right wall panels is connected to the bottom plate through a third folding connector. The front and rear wall panels are configured such that: the lower wall panel is flipped outward around the connection with the base plate, and the upper wall panel is folded inward around its folding boundary area; at least a portion of the folded upper wall panel and lower wall panel overlap and adhere to the edge area of the base plate. The left and right wall panels are configured such that they are flipped inward around the connection point with the base plate, and then folded outward along at least one folding boundary area along their height direction to form a multi-layered structure and are stacked on top of the base plate.
2. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 1, characterized in that, The modular concrete structure has an unfolded state and a folded state; in the unfolded state, the base plate, the front and rear wall panels, and the left and right wall panels enclose and form a modular unit. In the folded state, the front and rear wall panels and the left and right wall panels are folded and overlapped on the base plate according to a preset path; In the folded state, the overall thickness of the front and rear wall panels and the left and right wall panels stacked together is not greater than the thickness of the base plate, and the upper surfaces of the front and rear wall panels and the left and right wall panels are flush after folding.
3. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 2, characterized in that, The first folding connector is a curved telescopic structure, which includes: a fixed end and a telescopic end; the fixed end is embedded in the base plate, and the telescopic end is connected to the bottom of the front and rear wall panels through a strip steel plate; the base plate is provided with a receiving cavity that matches the telescopic end, for accommodating the telescopic end in the folded state.
4. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 1, characterized in that, The folding boundary zone of the front and rear wall panels is located at a position of 0.4 to 0.6 times the height of the wall panels.
5. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 1, characterized in that, The folding boundary area of the front and rear wall panels is provided with at least two sets of the second folding connectors at intervals along the horizontal direction; the folding boundary area of the left and right wall panels is provided with at least three sets of the second folding connectors at intervals along the horizontal direction.
6. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 2, characterized in that, The second folding connector is a rolling guide structure, which includes: a first guide groove, a first alloy steel rod, and a first roller; The first guide groove is embedded in the concrete layer of the front and rear wall panels or the left and right wall panels. The first alloy steel rod is provided with the first roller at both ends, and the first roller is in rolling cooperation with the first guide groove. Both ends of the first alloy steel rod move along the first guide groove to achieve the folding of the front and rear wall panels or the left and right wall panels.
7. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 6, characterized in that, The third folding connector is a rolling guide structure, which includes: a second guide groove, a second alloy steel rod, and a second roller; The second guide groove is embedded in the concrete layer of the left and right wall panels, and one end of the second alloy steel rod is provided with the second roller, which is in rolling cooperation with the second guide groove. The other end of the second alloy steel rod is a free end, which disengages from the second guide groove when the left and right wall panels are flipped.
8. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 1, characterized in that, The front and rear wall panels and the left and right wall panels have the same thickness, which ranges from 80 to 120 mm. The thickness of the front and rear wall panels and the left and right wall panels is no greater than 1 / 2 of the thickness of the base plate.
9. The foldable, unfoldable, and easily transportable modular concrete structure according to claim 2, characterized in that, It also includes a top plate, which is disposed on top of the front and rear wall panels and the left and right wall panels in the unfolded state; the top plate is provided with a reserved connection hole, and the top of the front and rear wall panels and the left and right wall panels are respectively provided with through holes, and the top plate is connected to the front and rear wall panels and the left and right wall panels by means of bidirectional bolts passing through the reserved connection holes and through holes.
10. A construction method for a foldable, unfoldable, and easily transportable modular concrete structure, characterized in that, To realize the foldable, unfoldable, and easily transportable modular concrete structure according to any one of claims 1 to 9, the steps include: Step 1: Precast the base slab, front and rear wall panels, left and right wall panels and top slab separately, and pre-embed folding connectors; Step 2: Flip the lower wall panel of the front and rear wall panels outward around the connection with the base plate, and fold the upper wall panel of the front and rear wall panels inward around their folding boundary area, so that at least part of the folded upper wall panel and lower wall panel overlap and adhere to the edge area of the base plate. The left and right wall panels are flipped inward around the connection with the base plate, and then folded outward along at least one folding boundary area along their height direction, and stacked on top of the base plate. Step 3: Hoist the modular concrete structure in its folded state to the preset installation position and temporarily fix it; Step 4: Sequentially unfold the front and rear wall panels and the left and right wall panels, rotate them around the corresponding folding connectors to the unfolded state, correct the verticality and position, and limit and lock each folding connector; Step 5: Hoist the top plate as a whole to the top of the modular unit formed by the front and rear wall panels, the left and right wall panels and the bottom plate, and fix it with bidirectional bolts to complete the construction of the modular concrete structure.