An expandable modular shelter and its expansion and folding method

Abstract

This invention relates to an expandable modular shelter and its expansion and folding method, comprising a first panel assembly, which includes a first top panel and a plurality of second top panels stacked sequentially, the first top panels being connected to adjacent second top panels via a first slide rail; a second panel assembly, which includes a first frame, a plurality of second frames, a first bottom plate, a plurality of second bottom plates, and a plurality of first side plates, the first frame and the plurality of second frames being vertically arranged, each second frame having two side plates symmetrically hinged to it, the two side plates being connected to the frame adjacent to their front sides by a first connecting rod, the lower end of the first frame being hinged to the first bottom plate, and the lower end of each second frame being hinged to the second bottom plate; and a connecting assembly, which includes a first connector and a second connector, the first connector being fixedly mounted on the first frame, and the second connector being fixedly mounted on the first top plate. Its structure is stable, interference-free, not easily collapsed, has good stability, and a long service life.

Description

Technical Field

[0001] This invention relates to the field of folding modular housing technology, and in particular to an expandable modular housing and its expansion and folding methods. Background Technology

[0002] Currently, there are various expansion methods and deployment / retraction structures for expandable modular shelters, but these designs are often overly complex and suffer from numerous structural problems. The mainstream expansion methods include axial expansion, multi-dimensional expansion, and a hybrid expansion using large panels and tents. Through the combination and coordinated operation of individual expandable modular shelters, their overall size can be expanded to achieve the construction of a base-style modular shelter cluster. The expansion mechanism of an expandable modular shelter typically consists of a mechanical structure combined with motor-driven components. The motor drives heavy, large panels to achieve expansion in both lateral and longitudinal directions.

[0003] Currently, the main technical challenges in the structural design of expandable modular shelters are as follows:

[0004] 1. The main structure of the modular shelter has poor reliability. The main body of the modular shelter is made of large plates. Due to their heavy weight, if the supporting structure is not designed properly, various problems such as deformation, collapse, and interference may occur, affecting the service life of the modular shelter.

[0005] 2. Significant interference exists between the motor drive components and the cabin structure. The primary design goal of expandable modular cabins is to maximize internal space utilization, facilitate transportation after retrieval, and extend the internal space when deployed. Due to the cabin's considerable weight, its drive components are also large, easily causing interference with the large panels or compressing the internal space. Customizing the drive components would also significantly increase the cabin's production cost. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects of the existing technology, such as poor reliability of cabin structure, interference between drive and cabin structure, large weight, and low space utilization.

[0007] To solve the above-mentioned technical problems, the present invention provides an expandable shelter, comprising:

[0008] The first plate assembly includes a first top plate and a plurality of second top plates stacked sequentially. The first top plate is connected to an adjacent second top plate by a first slide rail, and two adjacent second top plates are connected by a second slide rail.

[0009] The second plate assembly includes a first frame, multiple second frames, a first base plate, multiple second base plates, and multiple first side plates. The first frame and multiple second frames are all vertically arranged. Each second frame has two side plates symmetrically hinged to it. A first connecting rod is provided between the two side plates and the frame adjacent to their front side. The lower end of the first frame is hinged to the first base plate, and the lower end of each second frame is hinged to the second base plate.

[0010] A connecting component, comprising a first connector and a second connector, wherein the first connector is fixedly mounted on a first frame and the second connector is fixedly mounted on a first top plate, and the first connector and the second connector are hinged together.

[0011] In this configuration, the first plate assembly in the folded state flips upward to a horizontal state relative to the second plate assembly in the folded state, and the first plate assembly unfolds in the horizontal direction to form a top plate structure.

[0012] The second panel assembly unfolds horizontally so that the first frame and its adjacent second frame, as well as the adjacent second frame, are spaced apart. The first side panel rotates from a state parallel to the second frame to a state perpendicular to the second frame to serve as a side wall of the container.

[0013] Both the first and second base plates are flipped downwards to the horizontal plane to serve as the base plates of the container.

[0014] Preferably, the system also includes a driving component that drives the first frame to move closer to or away from its adjacent second frame;

[0015] When the drive component drives the first frame to move closer to its adjacent second frame, the drive component synchronously drives the two adjacent second frames to move closer together to fold.

[0016] When the drive component drives the first frame away from its adjacent second frame, the drive component synchronously drives the two adjacent second frames away from each other to unfold.

[0017] Preferably, the drive assembly includes a drive source, a first pull rod, a second pull rod, and multiple sets of third and fourth pull rods, wherein the middle parts of the first pull rod and the second pull rod are connected by a pivot, and the middle parts of the third pull rod and the fourth pull rod are connected by a pivot.

[0018] One end of the second pull rod is hinged to the first frame, and the other end of the second pull rod is hinged to one end of the third pull rod at its rear end. One end of the first pull rod is connected to the output end of the drive source, and the other end of the first pull rod is hinged to the second frame and the first end of the fourth pull rod at its rear side.

[0019] In this configuration, a set of third and fourth tie rods are provided between each pair of adjacent second frames. Between the two adjacent second frames, the first end of the third tie rod is hinged to the fourth tie rod at its front end, the second end of the third tie rod is hinged to the second frame at its rear end, the first end of the fourth tie rod is hinged to the second frame at its front end, and the second end of the fourth tie rod is hinged to the third tie rod at its rear end.

[0020] Under the action of the drive source, the first pull rod and the second pull rod rotate relative to each other and perform opening and closing actions to drive the first frame to move closer to or away from the adjacent second frame; the third pull rod and the fourth pull rod rotate relative to each other and perform opening and closing actions to drive the adjacent second frame to move closer to or away from each other.

[0021] Preferably, the drive source is disposed on the first frame, and the power output end of the drive source is disposed parallel to the first frame.

[0022] Preferably, when the first plate assembly is rotated 90 degrees relative to the second plate assembly, the first top plate is located on the upper side of the first frame and is closely attached to the first frame, and the second top plate is correspondingly set with the second frame, with the second top plate closely attached to the upper side of the corresponding second frame.

[0023] When both the first plate assembly and the second plate assembly are deployed, the first top plate is disposed in close contact with the first side plate and the first frame, and each second top plate is disposed in close contact with its corresponding second frame and the side plate below the second top plate.

[0024] Preferably, the sum of the widths of the two first side panels is less than or equal to the width of the second frame.

[0025] Preferably, there are two connecting components, which are symmetrically arranged with respect to the modular container.

[0026] Preferably, in the folded state of the modular container, the first top plate is positioned higher than the second top plate, and the second top plate is positioned close to the second frame.

[0027] This invention discloses an expansion method for an expandable modular shelter, which, based on the aforementioned expandable modular shelter, includes the following steps:

[0028] S1. The first plate assembly is flipped upward relative to the second plate assembly until both the first top plate and the second top plate of the first plate assembly are horizontally positioned, with the first top plate closely attached to the upper surface of the second plate assembly.

[0029] S2. The first plate assembly is extended in the horizontal direction, wherein the second top plate moves and unfolds relative to the adjacent first top plate in the first direction, and the adjacent second top plates move and unfold in sequence in the first direction, wherein the first direction is the direction where the first slide rail and the second slide rail are located.

[0030] S3. The second plate assembly unfolds horizontally so that the first frame and its adjacent second frame, as well as the adjacent second frame, are spaced apart.

[0031] S4. The first side panel is rotated from a state parallel to the second frame to a state perpendicular to the second frame to serve as a side wall of the container.

[0032] S5. Both the first and second base plates are flipped downwards to the horizontal plane to serve as the base plates of the container.

[0033] This invention discloses a folding method for an expandable modular shelter, which, based on the aforementioned expandable modular shelter, includes the following steps:

[0034] S1. Flip both the first base plate and the second base plate from a horizontal state to a vertical state, so that the first base plate is located within the first frame and the second base plate is located within the second frame;

[0035] S2. Flip the first side plate from a state perpendicular to the second frame to a state parallel to the second frame;

[0036] S3. Fold the second plate assembly horizontally so that the first frame is close to its adjacent second frame, and so that the two adjacent second frames are close together.

[0037] S4. Fold the first plate assembly so that the second top plate is stacked, and the first top plate and its adjacent second top plate are stacked.

[0038] The technical solution of the present invention has the following advantages compared with the prior art:

[0039] 1. This invention expands into a top plate via a first plate assembly, and into side plates and a bottom plate via a second plate assembly. The multi-stage side plate unfolding structure of this invention is an original design. Utilizing the tie rods at the bottom of the side plates and the hinges on the side plates, the unfolding and retraction actions are completed under the drive of the first frame. This completely eliminates the need for motors and hydraulic rods, relying solely on mechanical structure design to complete the unfolding and retraction actions, improving the smoothness and reliability of the multi-stage side plate unfolding process, and simplifying the complex process.

[0040] 2. In the retracted state, the base plate of this invention is in a vertical state. When the top plate, frame and side plate are unfolded into place, the base plate falls. This design ensures that the side plate can slide by means of the slide rail on the base plate, while increasing the stability of the side plate sliding and ensuring the service life of the base plate.

[0041] 3. This invention can be applied to all axially expandable shelters, providing a completely new design solution. By designing the physical mechanism, it replaces process improvements and fundamental structural adjustments, solving the current design pain points of expandable shelters, reducing costs while greatly improving reliability.

[0042] 4. The present invention has a stable structure, no interference, is not easy to collapse, has good stability, and a long service life. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of the modular cabin of the present invention in its folded state;

[0044] Figure 2 A schematic diagram of the structure in which the first plate assembly is rotated 90 degrees relative to the second plate assembly. Figure 1 ;

[0045] Figure 3 A schematic diagram of the structure in which the first plate assembly is rotated 90 degrees relative to the second plate assembly. Figure 2 ;

[0046] Figure 4 This is a structural diagram of the modular shelter in its semi-deployed state;

[0047] Figure 5 A schematic diagram of the modular shelter in its fully deployed state. Figure 1 ;

[0048] Figure 6 A schematic diagram of the modular shelter in its fully deployed state. Figure 2 .

[0049] Explanation of reference numerals in the accompanying drawings: 10, First plate assembly; 11, First top plate; 12, Second top plate; 13, First slide rail; 14, Second slide rail; 20, Second plate assembly; 21, First side plate; 22, Second side plate; 30, Connecting assembly; 31, First connector; 32, Second connector; 40, Drive source; 41, First pull rod; 42, Second pull rod; 43, Third pull rod; 44, Fourth pull rod; 50, First frame; 51, Second frame; 60, First bottom plate; 61, Second bottom plate; 70, First connecting rod. Detailed Implementation

[0050] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0051] Reference Figures 1-6 As shown, the present invention discloses an expandable shelter, including a first panel assembly 10, a second panel assembly 20, and a connecting assembly 30.

[0052] The first plate assembly 10 includes a first top plate 11 and a plurality of second top plates 12 arranged in sequence. The first top plate 11 is connected to the adjacent second top plate 12 by a first slide rail 13, and two adjacent second top plates 12 are connected by a second slide rail 14.

[0053] The second plate assembly 20 includes a first frame 50, a plurality of second frames 51, a first base plate 60, a plurality of second base plates 61, and a plurality of first side plates 21. The first frame 50 and the plurality of second frames 51 are both vertically arranged. Each second frame 51 has two side plates symmetrically hinged to it. A first connecting rod 70 is provided between the two side plates and the frame adjacent to their front side. The lower end of the first frame 50 is hinged to the first base plate 60, and the lower end of each second frame 51 is hinged to the second base plate 61.

[0054] The connecting component 30 includes a first connector 31 and a second connector 32. The first connector 31 is fixedly mounted on the first frame 50, and the second connector 32 is fixedly mounted on the first top plate 11. The first connector 31 and the second connector 32 are hinged together.

[0055] In this configuration, the first plate assembly 10 in the folded state flips upward to a horizontal state relative to the second plate assembly 20 in the folded state, and the first plate assembly 10 unfolds in the horizontal direction to form a top plate structure.

[0056] The second panel assembly 20 unfolds horizontally so that the first frame 50 and its adjacent second frame 51 are spaced apart, and the first side panel 21 rotates from a state parallel to the second frame to a state perpendicular to the second frame to serve as a side wall of the container.

[0057] The first base plate 60 and the second base plate 61 are both flipped downwards to the horizontal plane to serve as the base of the container.

[0058] The working principle of this invention is as follows: The invention can expand into a top plate via the first plate assembly 10, and into side plates and a bottom plate via the second plate assembly. The multi-stage side plate unfolding structure of this invention is an original design. Utilizing the tie rods at the bottom of the side plates and the hinges on the side plates, the unfolding and retraction actions are completed under the drive of the first frame 50. This completely eliminates the need for motors and hydraulic rods, relying solely on mechanical structure design to complete the unfolding and retraction actions, improving the smoothness and reliability of the multi-stage side plate unfolding process, and simplifying the complex process.

[0059] In this invention, the base plate is vertical when retracted. When the top plate, frame, and side plates are unfolded into place, the base plate falls. This design ensures that the side plates can slide relative to the guide rails on the base plate, increases the stability of the side plate sliding, and guarantees the service life of the base plate.

[0060] This invention can be applied to all axially expandable shelters, providing a completely new design solution. By designing the physical mechanism, it replaces process improvements and fundamental structural adjustments, solving the current design pain points of expandable shelters, reducing costs while greatly improving reliability.

[0061] The invention also includes a driving component that drives the first frame 50 to move closer to or further away from its adjacent second frame 51. When the driving component drives the first frame 50 to move closer to its adjacent second frame 51, it simultaneously drives the two adjacent second frames 51 to move closer together to fold. When the driving component drives the first frame 50 to move further away from its adjacent second frame 51, it simultaneously drives the two adjacent second frames 51 to move further apart to unfold. Through the driving component and a linkage mechanism, the synchronous movement of the first frame 50 and multiple second frames 51 is achieved, resulting in high efficiency, a compact structure, and good stability.

[0062] Furthermore, the drive assembly includes a drive source 40, a first pull rod 41, a second pull rod 42, and multiple sets of third pull rods 43 and fourth pull rods 44. The middle parts of the first pull rod 41 and the second pull rod 42 are connected by a pivot, and the middle parts of the third pull rods 43 and the fourth pull rods 44 are connected by a pivot. One end of the second pull rod 42 is hinged to the first frame 50, and the other end of the second pull rod 42 is hinged to one end of the third pull rod 43 at its rear end. One end of the first pull rod 41 is connected to the output end of the drive source 40, and the other end of the first pull rod 41 is hinged to the second frame at its rear and the first end of the fourth pull rod 44. A set of third pull rods 43 is provided between each pair of adjacent second frames. Between two adjacent second frames 51, the first end of the third pull rod 43 is hinged to the fourth pull rod 44 at its front end, and the second end of the third pull rod 43 is hinged to the second frame 51 at its rear end. The first end of the fourth pull rod 44 is hinged to the second frame 51 at its front end, and the second end of the fourth pull rod 44 is hinged to the third pull rod 43 at its rear end. Under the action of the drive source 40, the first pull rod 41 and the second pull rod 42 rotate relative to each other and perform opening and closing actions to drive the first frame 50 closer to or further away from its adjacent second frame 51. The third pull rod 43 and the fourth pull rod 44 rotate relative to each other and perform opening and closing actions to drive the adjacent second frame 51 closer to or further away from its adjacent second frame 51. The drive source 40 is mounted on the first frame 50, and the power output end of the drive source 40 is parallel to the first frame 50. The drive source 40 is a motor, cylinder, or hydraulic cylinder, which only needs to be able to drive the first pull rod 41 and the second pull rod 42 to open and close.

[0063] In this invention, when the first plate assembly 10 is rotated 90 degrees relative to the second plate assembly 20, the first top plate 11 is located on the upper side of the first frame and is tightly attached to the first frame. The second top plate 12 is correspondingly arranged with the second frame, and the second top plate 12 is tightly attached to the upper side of the corresponding second frame. When both the first plate assembly 10 and the second plate assembly 20 are unfolded, the first top plate 11 is tightly attached to the first side plate 21 and the first frame, and each second top plate 12 is tightly attached to its corresponding second frame and the side plate below the second top plate 12.

[0064] The overlapping design of the top and side panels in this invention is an innovative design for expandable modular shelters. By switching between vertical and horizontal placement, it avoids deformation of the large panels caused by prolonged horizontal placement. Furthermore, when two adjacent top panels are fully extended, they interlock and support each other, which improves the stability of the structure and the airtightness of the cabin.

[0065] In this invention, both the first frame 50 and the second frame 51 can be U-shaped structures.

[0066] In this invention, the sum of the widths of the two first side panels 21 is less than or equal to the width of the second frame 51. This allows the two first side panels 21 to be rotated into the second frame 51 for easy storage. Similarly, by simultaneously unfolding the two first side panels 21 relative to their corresponding second frame 51, two side walls can be formed.

[0067] Furthermore, there are two connecting components 30, which are symmetrically arranged relative to the cabin. The connecting components 30 enable relative rotation of the first plate assembly 10 and the second plate assembly 20, while the two connecting components 30 limit the movement of the first plate assembly 10. When the cabin is fully folded, the first top plate 11, the second top plate 12, the first frame 50, the second frame 51, the first side plate 21, the first bottom plate 60, and the second bottom plate 61 are all parallel to each other. When the first plate assembly 10 is rotated upwards by ninety degrees relative to the second plate assembly 20, the first top plate 11 is perpendicular to the first side plate 21 and the first bottom plate 60, and similarly, the second top plate 12 is also perpendicular to the first side plate 21 and the first bottom plate 60.

[0068] When the modular shelter is folded, the first top plate 11 is positioned higher than the second top plate 12, and the second top plate 12 is positioned close to the second frame.

[0069] This invention discloses an expansion method for an expandable modular shelter, which, based on the aforementioned expandable modular shelter, includes the following steps:

[0070] S1. The first plate assembly 10 is flipped upward relative to the second plate until the first top plate 11 and the second top plate 12 of the first plate assembly 10 are both horizontally set, and the first top plate 11 is set close to the upper surface of the second plate assembly 20.

[0071] S2. The first plate assembly 10 is extended in the horizontal direction, wherein the second top plate 12 moves and unfolds relative to the adjacent first top plate 11 in the first direction, and the adjacent second top plates 12 move and unfold in sequence in the first direction, the first direction being the direction where the first slide rail 13 and the second slide rail are located.

[0072] S3. The second plate assembly 20 is unfolded in the horizontal direction so that the first frame 50 and its adjacent second frame 51 are spaced apart.

[0073] S4. The first side plate 21 is rotated from a state parallel to the second frame to a state perpendicular to the second frame to serve as a side wall of the container.

[0074] S5, the first base plate 60 and the second base plate 61 are both flipped downwards to the horizontal plane to serve as the base of the container.

[0075] This invention discloses a folding method for an expandable modular shelter, characterized by comprising the following steps based on the aforementioned expandable modular shelter:

[0076] S1. Flip both the first base plate 60 and the second base plate 61 from a horizontal state to a vertical state, so that the first base plate 60 is located inside the first frame 50 and the second base plate 61 is located inside the second frame 51.

[0077] S2. Flip the first side plate 21 from a state perpendicular to the second frame 51 to a state parallel to the second frame 51.

[0078] S3. Fold the second plate assembly 20 in the horizontal direction so that the first frame 50 is close to its adjacent second frame 51, so that the two adjacent second frames are close to each other.

[0079] S4. Fold the first plate assembly 10 so that the second top plate 12 is stacked, and the first top plate 11 and its adjacent second top plate 12 are stacked.

[0080] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0081] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0082] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0083] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0084] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An expandable modular shelter, characterized in that, include: The first plate assembly includes a first top plate and a plurality of second top plates stacked sequentially. The first top plate is connected to an adjacent second top plate by a first slide rail, and two adjacent second top plates are connected by a second slide rail. The second plate assembly includes a first frame, multiple second frames, a first base plate, multiple second base plates, and multiple first side plates. The first frame and multiple second frames are all vertically arranged. Each second frame has two side plates symmetrically hinged to it. A first connecting rod is provided between the two side plates and the frame adjacent to their front side. The lower end of the first frame is hinged to the first base plate, and the lower end of each second frame is hinged to the second base plate. A connecting component, comprising a first connector and a second connector, wherein the first connector is fixedly mounted on a first frame and the second connector is fixedly mounted on a first top plate, and the first connector and the second connector are hinged together. In this configuration, the first plate assembly in the folded state flips upward to a horizontal state relative to the second plate assembly in the folded state, and the first plate assembly unfolds in the horizontal direction to form a top plate structure. The second panel assembly unfolds horizontally so that the first frame and its adjacent second frame, as well as the adjacent second frame, are spaced apart. The first side panel rotates from a state parallel to the second frame to a state perpendicular to the second frame to serve as a side wall of the container. Both the first and second bottom plates are flipped downwards to the horizontal plane to serve as the bottom plates of the container; It also includes a drive component that drives the first frame to move closer to or further away from its adjacent second frame; When the drive component drives the first frame to move closer to its adjacent second frame, the drive component synchronously drives the two adjacent second frames to move closer together to fold. When the driving component drives the first frame away from its adjacent second frame, the driving component synchronously drives the two adjacent second frames away from each other to unfold; The drive assembly includes a drive source, a first pull rod, a second pull rod, and multiple sets of third and fourth pull rods. The middle parts of the first and second pull rods are connected by a pivot, and the middle parts of the third and fourth pull rods are connected by a pivot. One end of the second pull rod is hinged to the first frame, and the other end of the second pull rod is hinged to one end of the third pull rod at its rear end. One end of the first pull rod is connected to the output end of the drive source, and the other end of the first pull rod is hinged to the second frame and the first end of the fourth pull rod at its rear side. In this configuration, a set of third and fourth tie rods are provided between each pair of adjacent second frames. Between the two adjacent second frames, the first end of the third tie rod is hinged to the fourth tie rod at its front end, the second end of the third tie rod is hinged to the second frame at its rear end, the first end of the fourth tie rod is hinged to the second frame at its front end, and the second end of the fourth tie rod is hinged to the third tie rod at its rear end. Under the action of the drive source, the first pull rod and the second pull rod rotate relative to each other and perform opening and closing actions to drive the first frame to move closer to or away from the adjacent second frame; the third pull rod and the fourth pull rod rotate relative to each other and perform opening and closing actions to drive the adjacent second frame to move closer to or away from each other.

2. The expandable modular shelter according to claim 1, characterized in that, The drive source is mounted on the first frame, and the power output end of the drive source is parallel to the first frame.

3. The expandable modular shelter according to claim 1, characterized in that, When the first plate assembly is rotated 90 degrees relative to the second plate assembly, the first top plate is located on the upper side of the first frame and is closely attached to the first frame. The second top plate is arranged in a one-to-one correspondence with the second frame, and the second top plate is closely attached to the upper side of the second frame to which it is arranged. When both the first plate assembly and the second plate assembly are deployed, the first top plate is disposed in close contact with the first side plate and the first frame, and each second top plate is disposed in close contact with its corresponding second frame and the side plate below the second top plate.

4. The expandable modular shelter according to claim 1, characterized in that, The sum of the widths of the two first side panels is less than or equal to the width of the second frame.

5. The expandable modular shelter according to claim 1, characterized in that, The connecting components are two in number and are arranged symmetrically with respect to the modular container.

6. The expandable modular shelter according to claim 1, characterized in that, When the modular shelter is folded up, the first top plate is positioned higher than the second top plate, and the second top plate is positioned close to the second frame.

7. A method for expanding an expandable modular shelter, characterized in that, The expandable modular shelter according to any one of claims 1-6 includes the following steps: S1. The first plate assembly is flipped upward relative to the second plate assembly until both the first top plate and the second top plate of the first plate assembly are horizontally positioned, with the first top plate closely attached to the upper surface of the second plate assembly. S2. The first plate assembly is extended in the horizontal direction, wherein the second top plate moves and unfolds relative to the adjacent first top plate in the first direction, and the adjacent second top plates move and unfold in sequence in the first direction, wherein the first direction is the direction where the first slide rail and the second slide rail are located. S3. The second plate assembly unfolds horizontally so that the first frame and its adjacent second frame, as well as the adjacent second frame, are spaced apart. S4. The first side panel is rotated from a state parallel to the second frame to a state perpendicular to the second frame to serve as a side wall of the container. S5. Both the first and second base plates are flipped downwards to the horizontal plane to serve as the base plates of the container.

8. A folding method for an expandable modular shelter, characterized in that, The expandable modular shelter according to any one of claims 1-6 includes the following steps: S1. Flip both the first base plate and the second base plate from a horizontal state to a vertical state, so that the first base plate is located within the first frame and the second base plate is located within the second frame; S2. Flip the first side plate from a state perpendicular to the second frame to a state parallel to the second frame; S3. Fold the second plate assembly horizontally so that the first frame is close to its adjacent second frame, and so that the two adjacent second frames are close together. S4. Fold the first plate assembly so that the second top plate is stacked, and the first top plate and its adjacent second top plate are stacked.

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