Folding type expansion structure square cabin

Abstract

The utility model discloses a folding type expansion structure square cabin, which belongs to the technical field of square cabins, and comprises a square cabin body, foldable expansion mechanisms are arranged on two sides of the square cabin body, each foldable expansion mechanism comprises an expansion top plate rotationally arranged on the top of the square cabin body, and the end part of each expansion top plate is rotationally connected with an expansion side plate; and the bottom of the shelter body is rotationally connected with an expansion bottom plate. According to the technical scheme, an external foldable expansion mechanism is adopted, space in a cabin cannot be occupied, space planning and equipment arrangement in the cabin cannot be disturbed, and during use, only the expansion bottom plate needs to be turned downwards, and then the expansion top plate and the expansion side plates are turned outwards in sequence; during folding, the expansion side plates are turned inwards to be attached to the expansion top plate, then the expansion top plate and the expansion side plates are turned inwards to be attached to the outer wall of the shelter body, and finally the expansion bottom plate is turned upwards to be attached to the expansion top plate.

Description

Technical Field

[0001] The utility model relates to the technical field of square cabins, in particular to a foldable expansion structure square cabin. Background Art

[0002] An expandable shelter is a multifunctional, expandable, and easily deployable and retractable command or camping cabin. It can be deployed when needed, increasing the usable area to meet the needs of different scenarios. A more common expandable shelter is the pull-out shelter, which typically consists of a main compartment and a drawer compartment. When deployed, its volume is similar to that of a non-expandable shelter, making it easy to transport and store. When needed, the drawer compartment can be pulled out of the main compartment, increasing the usable area. This design allows the pull-out shelter to meet larger space requirements while maintaining flexibility.

[0003] However, when the pull-out cabin is not in use, the drawer compartment is usually retracted into the main cabin, which inevitably occupies the available space in the main cabin, resulting in compression of the space in the main cabin. At the same time, since the pull-out structure and the drawer compartment must be arranged in the main cabin, the space planning and equipment layout in the main cabin will be more or less restricted, and even some larger equipment cannot be installed. Therefore, to address the above problems, a foldable expandable structure cabin is proposed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a foldable expansion structure cabin. The cabin adopts an external foldable expansion mechanism, which will not occupy the space in the cabin and will not interfere with the space planning and equipment layout in the cabin. When in use, the panels are unfolded and extended in turn to complete the expansion of the usable space. When folding, the panels are flipped and folded in turn to complete the folding and storage of the foldable expansion mechanism, which greatly reduces the space occupied by the entire cabin body. This solves the technical problem in the prior art that the drawer compartment of the pull-out cabin occupies the available space in the main cabin and interferes with the space planning and equipment layout in the main cabin.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] A foldable expansion structure cabin comprises a cabin body, both sides of which are provided with a foldable expansion mechanism, wherein the foldable expansion mechanism comprises an expansion top panel rotatably arranged on the top of the cabin body, the ends of the expansion top panel are rotatably connected to expansion side panels, and at the same time, the bottom of the cabin body is rotatably connected to an expansion bottom panel. When in use, it is only necessary to flip down the expansion bottom panel, then flip out the expansion top panel and the expansion side panels in turn, and fix the expansion side panels to the expansion bottom panel to complete the expansion of the usable space. When folding, the expansion side panels are flipped inward to fit with the expansion top panel, and then the expansion top panel and the expansion side panels are flipped inward to fit with the outer wall of the cabin body, and finally the expansion bottom panel is flipped up to fit with the expansion top panel.

[0007] In one possible implementation, a plurality of fixing plates are fixedly provided on the side of the expansion base plate, on which threaded holes are opened, and a plurality of corresponding fixing threaded cylinders are provided on the side of the cabin body. After folding is completed, the fixing plates and the fixing threaded cylinders are threadedly connected using bolt connectors to fix the expansion base plate to the cabin body. At this time, the expansion base plate is fixed and cannot rotate or shake. At the same time, it can squeeze the inner expansion side plate and the expansion top plate so that the above two cannot rotate, thereby ensuring that the foldable expansion mechanism is folded and fixed.

[0008] In one possible implementation, movable hinge seats are fixedly provided on both sides of the bottom end of the extended top panel, and the movable hinge seats are rotatably connected to the extended side panels via a rotating shaft. The above-mentioned structural form can realize the rotational connection between the extended top panel and the extended side panels, and can ensure that the extended side panels can fit tightly with the extended top panel when rotating and retracting.

[0009] In one possible implementation, an upper limit baffle is fixedly provided at the bottom end of the extended top panel. When the extended side panel is turned outward to the maximum angle, its top is tightly fitted with the upper limit baffle. The maximum angle between the extended top panel and the extended side panel is 105 degrees. The upper limit baffle can limit the maximum angle of the extended side panel, thereby facilitating the expansion work. At the same time, the upper limit baffle can support the extended side panel and improve the stability of the overall structure.

[0010] In one possible implementation, a connecting protrusion is fixedly provided on the side of the extended side panel, and a through hole is opened on the side of the extended side panel, which is larger than the bolt connecting piece. After the extended side panel and the extended bottom panel are fully expanded, the bolt connecting piece passes through the connecting protrusion and is threadedly connected to the fixing plate to achieve a fixed connection between the extended side panel and the extended bottom panel. The above-mentioned structural form can achieve a fixed connection between the extended side panel and the extended bottom panel after the expansion is completed, thereby improving the stability of the overall structure.

[0011] In one possible implementation, an upper hinge seat is fixedly provided on the top of the side of the cabin body, and an extended top plate is rotatably connected to the upper hinge seat via a rotating shaft. A lower hinge seat is fixedly provided on the bottom of the side of the cabin body, and an extended bottom plate is rotatably connected to the lower hinge seat via a rotating shaft. The above-mentioned structural form can respectively realize the rotational connection between the extended top plate, the extended bottom plate and the cabin body.

[0012] In one possible implementation, a number of symmetrically arranged support feet are fixedly provided on the outer side of the lower end surface of the extended base plate. The support feet can support the outer end of the extended base plate after it is unfolded. At the same time, a number of reinforcing ridges are welded on the lower end surface of the extended base plate. The reinforcing ridges are divided into longitudinal ridges and transverse ridges, and the longitudinal ridges and transverse ridges are perpendicular to each other. The reinforcing ridges can improve the overall strength of the extended base plate, making it less likely to deform during use.

[0013] In one possible implementation, a lower limit baffle is fixedly provided at the bottom of the cabin body. When the extended bottom plate is flipped down to the maximum turning angle, it fits tightly with the lower limit baffle. The maximum angle between the extended bottom plate and the side of the cabin body is 90 degrees. The lower limit baffle can limit the maximum turning angle of the extended bottom plate, thereby facilitating the expansion work. At the same time, the lower limit baffle can support the end of the extended bottom plate and improve the stability of the overall structure.

[0014] In summary, the present invention has the following beneficial technical effects:

[0015] The cabin body adopts an external foldable expansion mechanism, which will not occupy the space inside the cabin and will not interfere with the space planning and equipment layout inside the cabin. When in use, you only need to flip down the expansion bottom plate, and then flip out the expansion top plate and expansion side plates in turn, and fix the expansion side plates to the expansion bottom plate to complete the expansion of the usable space; when folding, the expansion side plates are flipped inward to fit with the expansion top plate, and then the expansion top plate and the expansion side plates are flipped inward to fit with the outer wall of the cabin body, and finally the expansion bottom plate is flipped up to fit with the expansion top plate, and the folding and storage of the foldable expansion mechanism is completed, which greatly reduces the space occupied by the entire cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the expanded state of the utility model;

[0018] Figure 2 This is a schematic diagram of the folded state of the utility model;

[0019] Figure 3 It is a schematic diagram of the bottom partial structure of the utility model.

[0020] In the figure: 1. Shelter body; 11. Fixed threaded cylinder; 12. Upper hinge seat; 13. Lower hinge seat; 14. Lower limit baffle; 2. Extended top plate; 21. Movable hinge seat; 22. Upper limit baffle; 3. Extended side plate; 31. Connecting protrusion; 4. Extended bottom plate; 41. Fixing plate; 42. Support foot; 43. Reinforcement rib; 5. Bolt connector. DETAILED DESCRIPTION

[0021] The technical solution in the embodiments of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0022] like Figure 1 - Figure 3As shown, the present embodiment provides a foldable expansion structure cabin, including a cabin body 1, both sides of which are provided with a foldable expansion mechanism, the foldable expansion mechanism including an expansion top panel 2 rotatably arranged on the top of the cabin body 1, the end of the expansion top panel 2 is rotatably connected to the expansion side panel 3, and at the same time, the bottom of the cabin body 1 is rotatably connected to the expansion bottom panel 4. When in use, it is only necessary to flip down the expansion bottom panel 4, and then flip the expansion top panel 2 and the expansion side panel 3 outward in turn, and fix the expansion side panel 3 to the expansion bottom panel 4 to complete the expansion of the usable space. When folding, the expansion side panel 3 is flipped inward to fit with the expansion top panel 2, and then the expansion top panel 2 and the expansion side panel 3 are flipped inward to fit with the outer wall of the cabin body 1, and finally the expansion bottom panel 4 is flipped up to fit with the expansion top panel 2.

[0023] In order to avoid the foldable expansion mechanism from unfolding under the action of gravity when not in use and interfering with the normal use of the cabin, such as Figure 2 As shown, a plurality of fixing plates 41 are fixedly provided on the side of the expansion base plate 4, on which threaded holes are opened, and a plurality of corresponding fixing threaded cylinders 11 are provided on the side of the cabin body 1. After folding is completed, the fixing plates 41 and the fixing threaded cylinders 11 are threadedly connected by bolt connectors 5 to fix the expansion base plate 4 to the cabin body 1. At this time, the expansion base plate 4 is fixed and cannot rotate or shake. At the same time, it can squeeze the inner expansion side plate 3 and the expansion top plate 2 so that the above two cannot rotate, thereby ensuring that the foldable expansion mechanism is folded and fixed.

[0024] like Figure 1 - Figure 3 As shown, movable hinge seats 21 are fixedly provided on both sides of the bottom end of the extended top panel 2, and the movable hinge seats 21 are rotatably connected to the extended side panels 3 through a rotating shaft. The above-mentioned structural form can realize the rotational connection between the extended top panel 2 and the extended side panels 3, and can ensure that the extended side panels 3 can fit tightly with the extended top panel 2 when rotated and retracted. In addition, an upper hinge seat 12 is fixedly provided on the top of the side of the cabin body 1, and the upper hinge seat 12 is rotatably connected to the extended top panel 2 through a rotating shaft. A lower hinge seat 13 is fixedly provided on the bottom of the side of the cabin body 1, and the lower hinge seat 13 is rotatably connected to the extended bottom panel 4 through a rotating shaft. The above-mentioned structural form can respectively realize the rotational connection between the extended top panel 2, the extended bottom panel 4 and the cabin body 1.

[0025] In order to improve the efficiency of the expansion work and ensure the stability of the entire structure after expansion, such as Figure 1 - Figure 3As shown, an upper limit baffle 22 is fixedly provided at the bottom end of the extended top panel 2. When the extended side panel 3 is turned outward to the maximum angle, its top is tightly fitted with the upper limit baffle 22. The maximum angle between the extended top panel 2 and the extended side panel 3 is 105 degrees. The upper limit baffle 22 can limit the maximum angle of the extended side panel 3, which is convenient for the expansion work. At the same time, the upper limit baffle 22 can support the extended side panel 3 and improve the stability of the overall structure.

[0026] In addition, a lower limit baffle 14 is fixedly provided at the bottom of the cabin body 1. When the extended bottom plate 4 is flipped down to the maximum turning angle, it fits tightly with the lower limit baffle 14. The maximum angle between the extended bottom plate 4 and the side of the cabin body 1 is 90 degrees. The lower limit baffle 14 can limit the maximum turning angle of the extended bottom plate 4, which is convenient for the expansion work. At the same time, the lower limit baffle 14 can support the end of the extended bottom plate 4 and improve the stability of the overall structure.

[0027] like Figure 1 As shown, a connecting protrusion 31 is fixedly provided on the side of the extended side panel 3, and a through hole larger than the bolt connector 5 is opened on the extended side panel 3. After the extended side panel 3 and the extended base panel 4 are fully expanded, the bolt connector 5 passes through the connecting protrusion 31 and is threadedly connected to the fixing plate 41 to achieve a fixed connection between the extended side panel 3 and the extended base panel 4. The above-mentioned structural form can achieve a fixed connection between the extended side panel 3 and the extended base panel 4 after the expansion is completed, thereby improving the stability of the overall structure.

[0028] like Figure 2 - Figure 3 As shown, a number of symmetrically arranged support legs 42 are fixedly provided on the outer side of the lower end surface of the extended base plate 4. The support legs 42 can support the outer end of the extended base plate 4 after it is unfolded. At the same time, a number of reinforcing ridges 43 are welded on the lower end surface of the extended base plate 4. The reinforcing ridges 43 are divided into longitudinal ridges and transverse ridges, and the longitudinal ridges and transverse ridges are perpendicular to each other. The reinforcing ridges 43 can improve the overall strength of the extended base plate 4, making it less likely to deform during use.

[0029] The use principle and use process of this utility model:

[0030] The cabin body 1 replaces the built-in drawer compartment structure with an external foldable expansion mechanism. This structural form will not occupy the space inside the cabin, nor will it interfere with the space planning and equipment layout inside the cabin, and can facilitate the layout of equipment inside the cabin and the use of space.

[0031] The specific usage process is as follows: when expansion is needed, one only needs to flip down the expansion base plate 4, then flip out the expansion top plate 2 and the expansion side plates 3 in turn, and fix the expansion side plates 3 to the expansion base plate 4 to complete the expansion of the usable space; when folding, the expansion side plates 3 are flipped inward to fit with the expansion top plate 2, and then the expansion top plate 2 and the expansion side plates 3 are flipped inward to fit with the outer wall of the cabin body 1, and finally the expansion base plate 4 is flipped up to fit with the expansion top plate 2, so that the folding and storage of the foldable expansion mechanism can be completed, which greatly reduces the space occupied by the entire cabin.

[0032] In order to prevent the foldable expansion mechanism from unfolding under the action of gravity when not in use and interfering with the normal use of the cabin, after the folding is completed, the bolt connector 5 is used to threadably connect the fixing plate 41 and the fixing threaded cylinder 11 to fix the expansion base plate 4 to the cabin body 1. At this time, the expansion base plate 4 is fixed and cannot rotate or shake. At the same time, it can squeeze the inner expansion side plate 3 and the expansion top plate 2, so that the above two cannot rotate, ensuring that the foldable expansion mechanism is folded and fixed.

[0033] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A foldable expandable structure shelter, characterized in that: include: The cabin body (1) is provided with foldable expansion mechanisms on both sides; The foldable expansion mechanism comprises an expansion top plate (2) rotatably arranged on the top of the cabin body (1), the end of the expansion top plate (2) is rotatably connected to an expansion side plate (3), and the bottom of the cabin body (1) is rotatably connected to an expansion bottom plate (4); When folding, the extended side panels (3) are turned inwards to fit with the extended top panel (2), and then the extended top panel (2) and the extended side panels (3) are turned inwards to fit with the outer wall of the cabin body (1), and finally the extended bottom panel (4) is turned upwards to fit with the extended top panel (2).

2. The foldable expandable structure shelter according to claim 1, characterized in that: The side of the expansion base plate (4) is fixedly provided with a plurality of fixing plates (41) with through threaded holes formed thereon, and the side of the cabin body (1) is provided with a plurality of corresponding fixing threaded cylinders (11). After folding is completed, the fixing plates (41) and the fixing threaded cylinders (11) are threadedly connected by bolt connectors (5) to fix the expansion base plate (4) to the cabin body (1).

3. The foldable expandable structure shelter according to claim 1, characterized in that: Both sides of the bottom end of the extended top plate (2) are fixedly provided with movable hinge seats (21), and the movable hinge seats (21) are rotatably connected to the extended side plates (3) via a rotating shaft.

4. The foldable expandable structure shelter according to claim 1, characterized in that: An upper limit baffle (22) is fixedly provided at the bottom end of the extended top plate (2); when the extended side plate (3) is turned outward to the maximum rotation angle, its top is tightly fitted with the upper limit baffle (22); wherein the maximum angle between the extended top plate (2) and the extended side plate (3) is 105 degrees.

5. The foldable expandable structure shelter according to claim 2, characterized in that: The side of the extended side panel (3) is fixedly provided with a connecting protrusion (31), which is provided with a through hole larger than the bolt connection member (5). After the extended side panel (3) and the extended bottom panel (4) are fully extended, the bolt connection member (5) passes through the connecting protrusion (31) and is threadedly connected to the fixing plate (41), thereby achieving a fixed connection between the extended side panel (3) and the extended bottom panel (4).

6. The foldable expandable structure shelter according to claim 1, characterized in that: An upper hinge seat (12) is fixedly provided on the top of the side of the cabin body (1), and an extended top plate (2) is rotatably connected to the upper hinge seat (12) via a rotating shaft. A lower hinge seat (13) is fixedly provided on the bottom of the side of the cabin body (1), and an extended bottom plate (4) is rotatably connected to the lower hinge seat (13) via a rotating shaft.

7. The foldable expandable structure shelter according to claim 1, characterized in that: A plurality of symmetrically arranged supporting legs (42) are fixedly provided on the outer side of the lower end surface of the extended base plate (4), and a plurality of reinforcing ridges (43) are welded to the lower end surface of the extended base plate (4). The reinforcing ridges (43) are divided into longitudinal ridges and transverse ridges, and the longitudinal ridges and transverse ridges are perpendicular to each other.

8. The foldable expandable structure shelter according to claim 1, characterized in that: A lower limit baffle (14) is fixedly provided at the bottom of the cabin body (1). When the extended bottom plate (4) is turned down to the maximum rotation angle, it is tightly fitted with the lower limit baffle (14), wherein the maximum angle between the extended bottom plate (4) and the side surface of the cabin body (1) is 90 degrees.

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