A double-expandable and double-foldable modular container
By combining the main cabin, folding cabin, and telescopic cabin design, the problem of low space utilization in existing outdoor cabins is solved. The design of outward-expanding right and left frame openings achieves efficient space utilization and flexible storage and unfolding methods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING RUIPU AMPEREX TECH CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-17
AI Technical Summary
The existing folding method of outdoor modular shelters results in low space utilization, and the simple folding method occupies a lot of space.
It adopts a combination design of main cabin, folding cabin and telescopic cabin. The folding cabin can be folded and stored and the telescopic cabin can be stored by the outward expansion of the right frame and the outward expansion of the left frame. Combined with telescopic support rod and roller structure, the space utilization rate is improved.
It achieves efficient use of space, avoids the problem of excessive space occupation caused by a single storage method, and provides flexible storage and unfolding methods.
Smart Images

Figure CN224514842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding cabins, and in particular to a double-expandable double-folding cabin. Background Technology
[0002] Outdoor modular cabins are used to quickly build living environments and require rapid construction. Currently, conventional modular cabins, such as the folding mechanism and extended cabin disclosed in patent document CN119686445A, often use a simple folding method. This solution simply folds, resulting in low space utilization during folding. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a double-expansion double-folding cabin with two storage methods, which can make efficient use of space and avoid the problem of excessive space occupation caused by a single storage method.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a double-expansion double-folding cabin, including a main cabin, a folding cabin and a telescopic cabin; The main cabin is provided with an outward right frame opening and an outward left frame opening on its right and left sides, respectively; The outward right frame opening connects to the folding compartment, and the folding compartment is folded and stored in the outward right frame opening; The outward-extending left frame opening connects to the telescopic cabin, which retracts into the main cabin.
[0005] The beneficial effects of this utility model are: This solution uses a combination of main cabin, folding cabin, and telescopic cabin. The folding cabin is folded outwards through the right frame opening, while the telescopic cabin is stored inside the main cabin. These two storage methods can make efficient use of space and avoid the problem of excessive space occupation caused by a single storage method.
[0006] Preferably, the upper edges of the outwardly extending right frame and the outwardly extending left frame are respectively hinged to top plates. This facilitates top cover. After being stored, the top plates can swing downwards to act as side baffles.
[0007] Preferably, the middle part of the side edge of the outward right frame opening is hinged to the lower end of the first telescopic support rod, and the upper end of the first telescopic support rod is hinged to the middle part of the corresponding top plate. The middle of the side edge of the outward-expanding left frame opening is hinged to the lower end of the second telescopic support rod, and the upper end of the second telescopic support rod is hinged to the middle of the corresponding top plate.
[0008] The use of a first telescopic support rod and a second telescopic support rod can provide support for the top plate and make it easier to unfold the top plate upwards.
[0009] Preferably, the folding compartment includes a front side panel, a rear side panel, an outer side panel, and a bottom panel; the front side panel, rear side panel, outer side panel, bottom panel, top panel, and outwardly extending right frame opening are combined to form a cubic space; The inner edge of the front panel is hinged to the front edge of the outward right frame opening; The inner edge of the rear side panel is hinged to the rear edge of the outward right frame opening; The inner edge of the base plate is hinged to the bottom edge of the outward right frame opening; The lower edge of the outer side plate is hinged to the outer edge of the bottom plate.
[0010] When storing, swing the front and rear side panels outwards to the right edge of the frame until they align with the plane of the right edge of the frame. Swing the outer side panel towards the bottom panel until it fits against the bottom panel. The bottom panel then swings the outer side panel upwards until it aligns with the plane of the right edge of the frame. Finally, lower the top panel downwards until it aligns with the plane of the right edge of the frame.
[0011] Preferably, a lever arm is fixed to the lower side of the base plate, one end of the third telescopic support rod is hinged to the bottom of the main cabin, and the other end of the third telescopic support rod is hinged to the end of the lever arm. When the third telescopic support rod extends, it causes the base plate to swing upward. The swinging of the base plate is caused by the third telescopic support rod and the lever arm.
[0012] Preferably, the base plate includes a left plate and a right plate, which are hinged together, and the lever arm is fixed to the left plate. When the right plate and the left plate are folded, the middle part bulges upward and folds together, with the outer plate folding together with the right plate.
[0013] Preferably, the left plate has a first hinge arm pointing downwards, and the outer plate has a second hinge arm pointing downwards towards the bottom plate. The lower ends of the first and second hinge arms are respectively hinged to the two ends of a connecting rod. The connecting rod drives the outer plate and the bottom plate to fold and swing synchronously. When unfolded, the connecting rod provides support for the outer plate to prevent it from falling over.
[0014] Preferably, the telescopic cabin includes an outer cabin and an inner cabin. The outer cabin is fitted inside the outer left frame opening of the main cabin, and the inner cabin is fitted inside the outer cabin. The outer and inner cabins can extend and retract at both ends, improving the telescopic ratio and space utilization.
[0015] Preferably, the outer bottom of the outer cabin is provided with rollers that mate with the inner bottom of the main cabin, and the outer bottom of the inner cabin is provided with rollers that mate with the inner bottom of the outer cabin. This facilitates the extension and retraction of the outer and inner cabins, making the process easier. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only three of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a top perspective view of an embodiment of the present utility model; Figure 2 This is a bottom-view perspective view of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the main cabin of an embodiment of the present utility model (the front and rear side panels are folded inside the main cabin). The components include: main cabin 1, folding cabin 2, telescopic cabin 3, right outward frame opening 4, left outward frame opening 5, top plate 6, first telescopic support rod 7, second telescopic support rod 8, front side plate 9, rear side plate 10, outer side plate 11, bottom plate 12, left plate 13, right plate 14, lever arm 15, third telescopic support rod 16, first hinge arm 17, second hinge arm 18, connecting rod 19, outer cabin 20, inner cabin 21, and roller 22. Detailed Implementation
[0018] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model. Example
[0019] like Figure 1 As shown, in order to make the internal structure more intuitive, the drawings only retain the framework of each part, and the panels are hidden. Therefore, you need to pay attention to distinguish the structure of each part when viewing it.
[0020] A double-expansion, double-folding container includes a main cabin 1, a folding cabin 2, and a telescopic cabin 3; the main cabin 1 is provided with an outwardly expanding right frame opening 4 and an outwardly expanding left frame opening 5 on its right and left sides, respectively; the outwardly expanding right frame opening 4 connects to the folding cabin 2, and the folding cabin 2 is folded and stored in the outwardly expanding right frame opening 4; the outwardly expanding left frame opening 5 connects to the telescopic cabin 3, and the telescopic cabin 3 is retracted inside the main cabin 1.
[0021] The beneficial effects of this utility model are: This solution uses a combination of main compartment 1, folding compartment 2, and telescopic compartment 3. Folding compartment 2 stores the right frame opening 4 that needs to be folded outwards, while telescopic compartment 3 is stored inside main compartment 1. These two storage methods can make efficient use of space and avoid the problem of excessive space occupation caused by a single storage method.
[0022] Top plates 6 are hinged to the upper edges of the outwardly extending right frame opening 4 and the outwardly extending left frame opening 5, respectively. This facilitates top cover. When retracted, the top plate 6 can swing downwards to serve as a side baffle.
[0023] The middle part of the side edge of the outward right frame opening 4 is hinged to the lower end of the first telescopic support rod 7, and the upper end of the first telescopic support rod 7 is hinged to the middle part of the corresponding top plate 6. The middle part of the side edge of the outward-extending left frame opening 5 is hinged to the lower end of the second telescopic support rod 8, and the upper end of the second telescopic support rod 8 is hinged to the middle part of the corresponding top plate 6.
[0024] The use of the first telescopic support rod 7 and the second telescopic support rod 8 can provide support for the top plate 6 and make it easier to unfold the top plate 6 upwards.
[0025] The folding compartment 2 includes a front side panel 9, a rear side panel 10, an outer side panel 11, and a bottom panel 12; the six planes of the front side panel 9, rear side panel 10, outer side panel 11, bottom panel 12, top panel 6, and outward right frame opening 4 are combined to form a cubic space; the inner edge of the front side panel 9 is hinged to the front edge of the outward right frame opening 4; the inner edge of the rear side panel 10 is hinged to the rear edge of the outward right frame opening 4; the inner edge of the bottom panel 12 is hinged to the bottom edge of the outward right frame opening 4; and the lower edge of the outer side panel 11 is hinged to the outer edge of the bottom panel 12.
[0026] When storing, the front side panel 9 and the rear side panel 10 swing outward to the right frame opening 4 until they are aligned with the plane of the right frame opening 4. The outer side panel 11 swings towards the bottom panel 12 until it is in contact with the bottom panel 12. The bottom panel 12 drives the outer side panel 11 to swing upward until it is aligned with the plane of the right frame opening 4. Finally, the top panel 6 is lowered down until it is aligned with the plane of the right frame opening 4.
[0027] A lever arm 15 is fixed to the lower side of the base plate 12. One end of the third telescopic support rod 16 is hinged to the bottom of the main cabin 1, and the other end of the third telescopic support rod 16 is hinged to the end of the lever arm 15. When the third telescopic support rod 16 extends, it causes the base plate 12 to swing upward. The base plate 12 swings through the third telescopic support rod 16 and the lever arm 15. In this embodiment, although the lever arm 15 is fixed to the base plate 12, its hinge position with the third telescopic support rod 16 is below the main cabin, so that when the base plate 12 swings, the hinge end of the lever arm 15 swings downward, making it easier to generate torque. In addition, it is necessary to ensure that the third telescopic support rod 16 and the lever arm 15 are never collinear, so as to push the lever arm 15 to swing. The lever arm 15 is structured as two strips arranged side by side in the figure, and the third telescopic support rod 16 is hinged between the two strips. Figure 2 As shown, in order to ensure the connection strength between the lever arm 15 and the base plate 12, a relatively long section of the lever arm 15 needs to be fixed to the base plate.
[0028] The base plate 12 includes a left plate 13 and a right plate 14, which are hinged together. The lever arm 15 is fixed to the left plate 13. When the right plate 14 and the left plate 13 are folded, the middle part bulges upward and folds together, with the outer plate 11 folding together with the right plate.
[0029] The left plate 13 is provided with a first hinge arm 17 facing downwards, and the outer plate 11 is provided with a second hinge arm 18 facing downwards towards the bottom plate 12. The lower ends of the first hinge arm 17 and the second hinge arm 18 are respectively hinged to the two ends of the connecting rod 19. The connecting rod 19 drives the outer plate 11 and the bottom plate 12 to fold and swing synchronously. When unfolded, the connecting rod 19 provides support for the outer plate 11 to prevent it from falling over.
[0030] It should be noted that the second hinge arm 16 in the figure is directly fixed to the outer plate. Due to the lines drawn in the drawing, it appears that the second hinge arm and the right plate are through-mesh. In fact, it is not directly fixed to the right plate 14. The right side of the right plate 14 has a gap for the second hinge arm to swing. The second hinge arm just fills the gap in the figure, so there is an illusion.
[0031] The telescopic cabin 3 includes an outer cabin 20 and an inner cabin 21. The outer cabin 20 is fitted inside the outer left frame opening 5 of the main cabin 1, and the inner cabin 21 is fitted inside the outer cabin 20. The outer cabin 20 and the inner cabin 21 can extend and retract at both ends, improving the extension rate and space utilization.
[0032] The outer bottom of the outer compartment 20 is provided with rollers 22 that mate with the inner bottom of the main compartment 1, and the outer bottom of the inner compartment 21 is provided with rollers 22 that mate with the inner bottom of the outer compartment 20. This facilitates the extension and retraction of the outer compartment 20 and the inner compartment 21, making the process easier.
[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0034] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A double expandable double-fold shelter, characterized in that, It includes the main cabin (1), the folding cabin (2), and the telescopic cabin (3); The main cabin (1) is provided with an outward right frame opening (4) and an outward left frame opening (5) on its right and left sides, respectively; The right frame opening (4) connects to the folding compartment (2), and the folding compartment (2) is folded and stored in the right frame opening (4); The outward-extending left frame opening (5) connects to the telescopic cabin (3), and the telescopic cabin (3) retracts into the main cabin (1).
2. The dual expandable double-fold shelter of claim 1, wherein: The top plates (6) are hinged to the upper edges of the right and left outward frame openings (4 and 5), respectively.
3. A double-expandable, double-folding modular cabin according to claim 2, characterized in that: The middle part of the side edge of the outward right frame opening (4) is hinged to the lower end of the first telescopic support rod (7), and the upper end of the first telescopic support rod (7) is hinged to the middle part of the corresponding top plate (6). The middle part of the side edge of the outward left frame opening (5) is hinged to the lower end of the second telescopic support rod (8), and the upper end of the second telescopic support rod (8) is hinged to the middle part of the corresponding top plate (6).
4. A double-expandable, double-folding modular cabin according to claim 3, characterized in that: The folding cabin (2) includes a front side panel (9), a rear side panel (10), an outer side panel (11), and a bottom panel (12); the six planes of the front side panel (9), rear side panel (10), outer side panel (11), bottom panel (12), top panel (6), and outward right frame opening (4) are combined to form a cubic space; The inner edge of the front side plate (9) is hinged to the front edge of the outward right frame opening (4); The inner edge of the rear side plate (10) is hinged to the rear edge of the outward right frame opening (4); The inner edge of the base plate (12) is hinged to the bottom edge of the outer right frame opening (4); The lower edge of the outer side plate (11) is hinged to the outer side edge of the bottom plate (12).
5. The dual expandable double-fold shelter of claim 4, wherein: A lever arm (15) is fixed to the lower side of the base plate (12). One end of the third telescopic support rod (16) is hinged to the bottom of the main cabin (1), and the other end of the third telescopic support rod (16) is hinged to the end of the lever arm (15). When the third telescopic support rod (16) extends, it causes the base plate (12) to swing upward.
6. The dual expandable double-fold shelter of claim 5, wherein: The base plate (12) includes a left plate (13) and a right plate (14), the left plate (13) and the right plate are hinged together, and the lever arm (15) is fixed to the left plate (13).
7. The dual expandable double-fold shelter of claim 6, wherein: The left plate (13) is provided with a first hinge arm (17) facing downwards, and the outer plate (11) is provided with a second hinge arm (18) facing downwards from the bottom plate (12). The lower ends of the first hinge arm (17) and the lower ends of the second hinge arm (18) are respectively hinged to the two ends of the connecting rod (19).
8. The dual expandable double-fold shelter of claim 1, wherein: The telescopic cabin (3) includes an outer cabin (20) and an inner cabin (21). The outer cabin (20) is fitted inside the outer left frame opening (5) of the main cabin (1), and the inner cabin (21) is fitted inside the outer cabin (20).
9. The dual expandable double-fold shelter of claim 8, wherein: The outer bottom of the outer compartment (20) is provided with a roller (22) that mates with the inner bottom of the main compartment (1), and the outer bottom of the inner compartment (21) is provided with a roller (22) that mates with the inner bottom of the outer compartment (20).