Double-layer folding house

Abstract

The utility model relates to a double-layer folding house which is provided with a main house body, hoisting pieces are arranged at the four top corners of the main house body, and side house bodies are arranged on the left side and the right side of the main house body. A top house body is further arranged at the top end of the main house body and comprises an upper top plate, upper side plates, a top front house plate and a top rear house plate, the upper side plates comprise a first plate body and a second plate body, the upper end of the first plate body is rotationally connected with the upper top plate, and the lower end of the second plate body is rotationally connected with the main house body; a second positioning plate is arranged at the top end of the main room body, a plurality of first positioning holes are formed in the first positioning plate, a plurality of second positioning holes are formed in the second positioning plate, an inserting groove is formed between the second positioning plate and the second plate body, and the first positioning plate extends into the inserting groove when the first plate body and the second plate body rotate to be stored; the upper top plate is fixed to the top house body after the first positioning plate is inserted into the inserting groove and connected with the second positioning plate through the locking piece. The device is efficient in structure.

Description

Technical Field

[0001] The utility model relates to the field of folding houses, in particular to a double-layer folding house. Background Art

[0002] A foldable house is a house that can be folded and unfolded for use by rotating the house panels. Compared with existing container-type mobile houses, it not only has the mobility of container-type mobile houses, but also has lower transportation costs (multiple foldable houses can be transported in sequence). It is precisely because of the above characteristics that foldable houses are accepted by more and more fields, such as camping sites and campsites.

[0003] Existing folding houses are generally imported and exported by sea transportation, but the size of containers is limited during sea transportation, so the overall size of the folding house is inevitably restricted. There is still a certain gap between the folding house in the container and the top of the container, and the space within the unit volume cannot be fully utilized. It is necessary to develop a folding house that can make full use of the overall space. Utility Model Content

[0004] The purpose of the utility model is to provide a double-layer foldable house with an ingenious structure. On the one hand, the space within the unit volume can be fully utilized, and on the other hand, the use space of the foldable house can be increased, which is convenient and practical.

[0005] The technical scheme for realizing the purpose of the utility model is as follows: the utility model comprises a main room body, the four top corners of the main room body are provided with hanging parts, the left and right sides of the main room body are provided with side rooms which can be folded and stored in the main room body or unfolded; the top of the main room body is also provided with a top room body, and the top room body comprises an upper top plate, an upper side plate rotatably connected to the left and right sides of the upper top plate, a top front roof plate rotatably connected to the front end of the upper top plate or the front end of the top of the main room body, and a top rear roof plate rotatably connected to the rear end of the upper top plate or the rear end of the top of the main room body, the upper side plate comprises a first plate body and a second plate body rotatably connected, the upper end of the first plate body is rotatably connected to the upper top plate, and the lower end of the second plate body is rotatably connected to the main room body, first positioning plates are provided on both sides of the upper top plate, and second positioning plates corresponding to each first positioning plate are provided on the top of the main room body, the first positioning plate is arranged parallel to the first plate body rotated to a vertical state, and the second positioning plate The positioning plate is arranged parallel to the second plate body rotated to a vertical state, and the horizontal spacing from the first positioning plate to the first plate body is smaller than the horizontal spacing from the second positioning plate to the second plate body, the first positioning plate is provided with a plurality of first positioning holes, and the second positioning plate is provided with a plurality of second positioning holes corresponding to the first positioning holes, and locking members are provided in the first positioning holes and the second positioning holes, after each first plate body is rotated and unfolded, it is fixedly connected to the first positioning plate through the locking member, and after each second positioning plate is rotated and unfolded, it is fixedly connected to the second positioning plate through the locking member, and a slot into which the first positioning plate can be inserted is formed between the second positioning plate and the second plate body, and the first positioning plate extends into the slot when the first plate body and the second plate body are rotated and stored, and each first positioning hole is connected with the second positioning hole after the first positioning plate extends into the slot, and the top plate is fixed to the top house body after the first positioning plate is inserted into the slot and connected to the second positioning plate through the locking member.

[0006] Furthermore, a buffer assembly is also provided at the lower end of the first positioning plate, and the buffer assembly includes a buffer strip arranged parallel to the extension direction of the first positioning plate, a plurality of telescopic rods arranged perpendicular to the extension direction of the buffer strip, and a buffer spring mounted on each telescopic rod. A plurality of telescopic grooves corresponding to each telescopic rod are provided at the bottom of the first positioning plate, and the telescopic rods are slidably arranged in the telescopic grooves. Both ends of each buffer spring act on the inner walls of the telescopic rod and the telescopic groove respectively. The buffer strip buffers the impact force received by the first positioning plate through the sliding cooperation of the telescopic rod and the telescopic groove and the continuous force of the buffer spring.

[0007] Further, each first plate body is rotatably connected to the upper roof plate through a first hinge body, each second plate body is rotatably connected to the top of the main room body through a first hinge body, and the top front roof plate and the top rear roof plate are rotatably connected to the upper roof plate through a first hinge body;

[0008] The first hinge body includes a first rotating groove and a first rotating ear for rotationally matching, the front end, rear end, left end and right end of the edging profile of the upper top plate are provided with a first rotating groove extending from one section to the other end along its extension direction, the top front roof board, the top rear roof board, and the upper end of the edging profile of each first plate body are provided with a first rotating ear extending from one end to the other end along its extension direction, the left end and the right end of the edging profile at the top of the main room body are provided with a first rotating groove extending from one end to the other end along its extension direction, the lower end of the edging profile of the second plate body is provided with a first rotating ear extending from one end to the other end along its extension direction, each first rotating ear and each first rotating groove are integrally formed with the corresponding edging profile, and the top room body is stored, folded or unfolded on the main room body through the cooperation of each first rotating ear and the first rotating groove.

[0009] Furthermore, a first positioning groove is provided on the front end surface of the above-mentioned top front roof board, a first positioning column corresponding to the first positioning groove is provided on the top end of the main room body, a second positioning groove is provided on the rear end surface of the top rear roof board, and a second positioning column corresponding to the second positioning groove is provided on the top end of the main room body, the first positioning column extends into the first positioning groove after the top front roof board is rotated and unfolded, and positions and supports the top front roof board, and the second positioning column extends into the second positioning groove after the top rear roof board is rotated and unfolded, and positions and supports the top rear roof board.

[0010] Furthermore, the above-mentioned second plate body is provided with a first limiting hole corresponding to the first positioning column, and a second limiting hole corresponding to the second positioning column. The first positioning column is inserted into the first limiting hole after the second plate body is rotated and folded, and the second positioning column is inserted into the second limiting hole after the second plate body is rotated and folded.

[0011] Furthermore, the first plate body and the second plate body are rotatably connected via a second hinge body, the second hinge body comprising an intermediate body, a second rotation groove symmetrically arranged on the intermediate body, and second rotation ears corresponding to each second rotation groove, the edging profile at the lower end of the first plate body and the edging profile at the upper end of the second plate body are provided with a second rotation ear extending from one end to the other end along its extension direction, each second rotation groove of the intermediate body extends from one end of the intermediate body to the other end of the intermediate body along the extension direction of the intermediate body, each second rotation ear and the second rotation groove are integrally formed with the corresponding edging profile, and each second rotation ear is rotatably arranged in the corresponding second rotation groove, and the first plate body and the second plate body are folded, stored or unfolded through the cooperation of each second rotation ear and the corresponding second rotation groove.

[0012] Furthermore, an entrance is provided at the upper end of the main room, and the main room is connected with the top room through the entrance. A staircase is provided in the main room, and the upper end of the staircase is located at the entrance.

[0013] Furthermore, the four top corners of the bottom end of the main body are provided with legs for supporting the main body, and a storage bin is located between the legs that are arranged oppositely, and a fork groove for inserting a fork of a forklift is formed between the legs that are arranged oppositely and the storage bin.

[0014] The utility model has positive effects: (1) the utility model sets a top body on the main body, and the top body can be stored or unfolded by folding the first plate and the second plate, which effectively solves the problem of insufficient space utilization per unit volume in the container in the prior art. At the same time, the mutual plug-in of the first positioning plate and the second positioning plate ensures the stability of the top body after folding, which greatly avoids the shaking of the top body when it is stored. The structure is ingenious, efficient and practical.

[0015] (2) The utility model provides a buffer assembly on the first positioning plate and uses various buffer springs to buffer the buffer strip, thereby greatly reducing the impact force between the first plate body and the second plate body during storage collision or transportation, which is efficient and convenient.

[0016] (3) The utility model provides a first hinged body to ensure the smooth rotation of the top front roof board, the top rear roof board, the first plate body and the second plate body, while also ensuring the overall waterproofness after the roof boards are connected, which is convenient and practical.

[0017] (4) The utility model sets a first positioning groove on the top front roof board and a second positioning groove on the top rear roof board. The cooperation between the first positioning column and the first positioning groove effectively ensures the stability of the top front roof board after rotation. The cooperation between the second positioning column and the second positioning groove effectively ensures the stability of the top rear roof board after rotation, thereby further ensuring the overall stability of the top house body.

[0018] (5) The utility model effectively ensures the stability of the first plate body and the second plate body during transportation by setting the first limiting hole and the second limiting hole on the second plate body, and the first positioning column cooperates with the first limiting hole, and the second positioning column cooperates with the second limiting hole, thereby avoiding damage to the first plate body and the second plate body due to shaking during transportation.

[0019] (6) The utility model can effectively ensure the smoothness of rotation between the first plate body and the second plate body by rotatably connecting the first plate body and the second plate body through the second hinge body, and can also ensure the waterproofness between the first plate body and the second plate body.

[0020] (7) The utility model provides an entrance at the upper end of the main room and a staircase in the main room, so that users can easily enter the top room from the main room.

[0021] (8) The utility model supports the main body by arranging a support leg at the bottom of the main body, and moves the main body by extending the fork on the forklift into the fork slot, which effectively ensures the stability of the main body during transportation and the safety during use, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0023] Figure 1 It is a front view of the overall structure of the double-layer foldable house in the utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the main room body and the folding room body of the utility model when they are stored;

[0025] Figure 3 This is a schematic diagram of the overall structure of the main room in the utility model;

[0026] Figure 4 This is a schematic diagram of the overall structure of the top room in the utility model;

[0027] Figure 5 It is a cross-sectional view of the overall structure of the first positioning plate in the utility model;

[0028] Figure 6 It is a schematic diagram of the overall structure of the first hinged body in the utility model;

[0029] Figure 7 This is a schematic diagram of the overall structure of the top rear roof in the utility model;

[0030] Figure 8 It is a structural schematic diagram of the second plate body in the utility model;

[0031] Fig. 9 It is a schematic diagram of the overall structure of the second hinged body in the utility model. DETAILED DESCRIPTION

[0032] See Figures 1 to 9The utility model comprises a main room body 1, four top corners of the main room body 1 are provided with hanging parts 11, and the left and right sides of the main room body 1 are provided with side rooms 2 which can be folded and stored in the main room body 1 or unfolded; the top of the main room body 1 is also provided with a top room body 4, and the top room body 4 includes an upper top plate 43, upper side plates 44 rotatably connected to the left and right sides of the upper top plate 43, a top front roof plate 41 rotatably connected to the front end of the upper top plate 43 or the top front end of the main room body 1, and a rear end or a rear end of the upper top plate 43 is rotatably connected to the upper side plate 44. The top rear roof board 42 at the rear end of the top of the main room body 1, the upper side board 44 includes a first board body 46 and a second board body 47 that are rotatably connected, the upper end of the first board body 46 is rotatably connected to the upper top board 43, and the lower end of the second board body 47 is rotatably connected to the main room body 1, first positioning plates 7 are provided on both sides of the upper top board 43, and second positioning plates 8 corresponding to each first positioning plate 7 are provided on the top of the main room body 1. The first positioning plate 7 is arranged in parallel with the first board body 46 rotated to a vertical state, and the second positioning plate 8 is arranged in parallel with the first board body 46 rotated to a vertical state. The second plate body 47 that moves to a vertical state is arranged in parallel, and the horizontal spacing from the first positioning plate 7 to the first plate body 46 is smaller than the horizontal spacing from the second positioning plate 8 to the second plate body 47. The first positioning plate 7 is provided with a plurality of first positioning holes 71, and the second positioning plate 8 is provided with a plurality of second positioning holes 81 corresponding to the first positioning holes 71. Locking members are provided in the first positioning holes 71 and the second positioning holes 81. After each first plate body 46 is rotated and unfolded, it is fixedly connected to the first positioning plate 7 through the locking member. After each second positioning plate 8 is rotated and unfolded, it is fixedly connected to the second positioning plate 8 through the locking member. A slot into which the first positioning plate 7 can be inserted is formed between the second positioning plate 8 and the second plate body 47. The first positioning plate 7 extends into the slot when the first plate body 46 and the second plate body 47 are rotated and stored. Each first positioning hole 71 is connected with the second positioning hole 81 after the first positioning plate 7 extends into the slot. The upper top plate 43 is fixed to the top room body 4 after the first positioning plate 7 is inserted into the slot and connected to the second positioning plate 8 through the locking member.

[0033] A buffer assembly 73 is also provided at the lower end of the first positioning plate 7, and the buffer assembly 73 includes a buffer strip 731 arranged parallel to the extension direction of the first positioning plate 7, a plurality of telescopic rods 732 arranged perpendicular to the extension direction of the buffer strip 731, and a buffer spring 733 sleeved on each telescopic rod 732. A plurality of telescopic grooves 72 corresponding to each telescopic rod 732 are provided at the bottom of the first positioning plate 7, and the telescopic rod 732 is slidably arranged in the telescopic groove 72. The two ends of each buffer spring 733 act on the inner wall of the telescopic rod 732 and the telescopic groove 72 respectively. The buffer strip 731 buffers the impact force received by the first positioning plate 7 through the sliding cooperation between the telescopic rod 732 and the telescopic groove 72, and the continuous force of the buffer spring 733.

[0034] Each first plate body 46 is rotatably connected to the upper roof plate 43 through the first hinge body 6, each second plate body 47 is rotatably connected to the top of the main room body 1 through the first hinge body 6, and the top front roof plate 41 and the top rear roof plate 42 are rotatably connected to the upper roof plate 43 through the first hinge body 6;

[0035] The first hinged body 6 includes a first rotating groove 62 and a first rotating ear 61 for rotational cooperation. The front end, rear end, left end and right end of the edging profile of the upper top plate 43 are provided with a first rotating groove 62 extending from one section to the other end along its extension direction. The upper ends of the edging profiles of the top front roof board 41, the top rear roof board 42, and each first plate body 46 are provided with a first rotating ear 61 extending from one end to the other end along its extension direction. The left and right ends of the edging profile at the top of the main room body 1 are provided with a first rotating groove 62 extending to the other end along its extension direction. The lower end of the edging profile of the second plate body 47 is provided with a first rotating ear 61 extending from one end to the other end along its extension direction. Each first rotating ear 61 and each first rotating groove 62 are integrally formed with the corresponding edging profile. The top room body 4 is stored, folded or unfolded on the main room body 1 through the cooperation of each first rotating ear 61 and the first rotating groove 62.

[0036] A first positioning groove 411 is provided on the front end surface of the top front roof board 41, a first positioning column 12 corresponding to the first positioning groove 411 is provided on the top end of the main room body 1, a second positioning groove 421 is provided on the rear end surface of the top rear roof board 42, and a second positioning column 17 corresponding to the second positioning groove 421 is provided on the top end of the main room body 1. The first positioning column 12 extends into the first positioning groove 411 after the top front roof board 41 is rotated and unfolded, and positions and supports the top front roof board 41. The second positioning column 17 extends into the second positioning groove 421 after the top rear roof board 42 is rotated and unfolded, and positions and supports the top rear roof board 42.

[0037] The second plate body 47 is provided with a first limiting hole 471 corresponding to the first positioning column 12 and a second limiting hole 472 corresponding to the second positioning column 17. The first positioning column 12 is inserted into the first limiting hole 471 after the second plate body 47 is rotated and folded, and the second positioning column 17 is inserted into the second limiting hole 472 after the second plate body 47 is rotated and folded.

[0038] The first plate body 46 and the second plate body 47 are rotatably connected through a second hinge body 9, and the second hinge body 9 includes an intermediate body 91, a second rotation groove 92 symmetrically arranged on the intermediate body 91, and a second rotation ear 93 corresponding to each second rotation groove 92. The edging profile at the lower end of the first plate body 46 and the edging profile at the upper end of the second plate body 47 are provided with a second rotation ear 93 extending from one end to the other end along the extension direction thereof. Each second rotation groove 92 of the intermediate body 91 extends from one end of the intermediate body 91 to the other end of the intermediate body 91 along the extension direction of the intermediate body 91. Each second rotation ear 93 and the second rotation groove 92 are integrally formed with the corresponding edging profile, and each second rotation ear 93 is rotatably arranged in the corresponding second rotation groove 92. The first plate body 46 and the second plate body 47 are folded, stored or unfolded by the cooperation of each second rotation ear 93 with the corresponding second rotation groove 92.

[0039] An entrance 10 is provided at the upper end of the main room body 1 , and the main room body 1 is connected with the top room body 4 through the entrance 10 . A staircase 5 is provided in the main room body 1 , and the upper end of the staircase 5 is located at the entrance 10 .

[0040] The four top corners at the bottom end of the main room body 1 are provided with support legs 14 for supporting the main room body 1, and a storage bin 15 between the oppositely arranged support legs 14, and a fork groove 16 for inserting a forklift's fork is formed between the oppositely arranged support legs 14 and the storage bin 15.

[0041] Working principle of the utility model: during the use of the utility model, each side house body 2 is rotated and unfolded, and then during the unfolding process of the top house body 4, the locking pieces between the first positioning plate 7 and the second positioning plate 8 are first loosened, and the locking pieces here are mostly locking bolts and locking nuts. The four top corners of the upper top plate 43 of the top house body 4 are also provided with hanging pieces 11 for hanging during unfolding and forming. The hanging pieces 11 are arranged on the upper position of the top house body 4, and the top house body 4 can also be unfolded and formed manually. During the unfolding process, the upper top plate 43 is first lifted upward. During the lifting process of the upper top plate 43, the first plate body 46 and the second rotating plate in the folded state begin to rotate, and the top front roof plate 41 and the top rear roof plate 42 also begin to rotate and unfold, and the first plate body 46 When the second plate body 47 is rotated from the horizontal state to the vertical state, each locking bolt on each first positioning plate 7 passes through the first positioning hole 71 to fix the first plate body 46, and each second positioning plate 8 also passes through the second positioning hole 81 to fix the second plate body 47, and the top front roof board 41 and the top rear roof board 42 are rotated and unfolded through the first hinge body 6. During the rotation and unfolding process of the top front roof board 41 and the top rear roof board 42, the first positioning groove 411 on the top front roof board 41 cooperates with the first positioning column 12 for positioning, and the second positioning groove 421 on the top rear roof board 42 cooperates with the second positioning groove 421 for positioning. During the use of the main room body 1, the user can enter the top room body 4 through the stairs 5 through the entrance 10;

[0042] During the storage of the top room body 4, the top front roof board 41 and the top rear roof board 42 are first stored, and then the locking bolts on the first positioning plate 7 and the second positioning plate 8 are removed. The removed first plate body 46 and the second plate body 47 are bent inward and stored, and the first positioning column 12 is inserted into the first limiting hole 471, and the second positioning column 17 is inserted into the second limiting hole 472, so as to ensure the stability of the first plate body 46 and the second plate body 47 during transportation. After the top room body 4 is stored, each side room body 2 is also folded and stored and then enters the main room body 1. Then the main room body 1 is hoisted by external hoisting equipment and loaded into the container by a forklift. While making full use of the internal space of the container as a whole, it also increases the overall use space of the main room body 1. The structure is ingenious and efficient and convenient.

[0043] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-layer foldable house, comprising a main room, four top corners of the main room are provided with hanging parts, and the left and right sides of the main room are provided with side rooms that can be folded and stored in the main room or unfolded; characterized in that: The top of the main room body is also provided with a top room body, and the top room body includes an upper roof plate, an upper side plate rotatably connected to the left and right sides of the upper roof plate, a top front roof plate rotatably connected to the front end of the upper roof plate or the front end of the top of the main room body, and a top rear roof plate rotatably connected to the rear end of the upper roof plate or the rear end of the top of the main room body, and the upper side plate includes a first plate body and a second plate body rotatably connected, the upper end of the first plate body is rotatably connected to the upper roof plate, and the lower end of the second plate body is rotatably connected to the main room body. First positioning plates are provided on both sides of the upper roof plate, and second positioning plates corresponding to each first positioning plate are provided at the top of the main room body. The first positioning plate is arranged in parallel with the first plate body rotated to a vertical state, and the second positioning plate is arranged in parallel with the second plate body rotated to a vertical state. The horizontal distance from the first positioning plate to the first plate body The distance is smaller than the horizontal spacing from the second positioning plate to the second plate body, the first positioning plate is provided with a plurality of first positioning holes, the second positioning plate is provided with a plurality of second positioning holes corresponding to the first positioning holes, the first positioning holes and the second positioning holes are both provided with locking pieces, after each first plate body is rotated and unfolded, each first plate body is fixedly connected to the first positioning plate through the locking piece, after each second positioning plate is rotated and unfolded, each second positioning plate is fixedly connected to the second positioning plate through the locking piece, a slot into which the first positioning plate can be inserted is formed between the second positioning plate and the second plate body, the first positioning plate extends into the slot when the first plate body and the second plate body are rotated and stored, each first positioning hole is connected with the second positioning hole after the first positioning plate extends into the slot, and the top plate is fixed to the top room body after the first positioning plate is inserted into the slot and connected to the second positioning plate through the locking piece.

2. A double-layer foldable house according to claim 1, characterized in that: A buffer assembly is also provided at the lower end of the first positioning plate, and the buffer assembly includes a buffer strip arranged parallel to the extension direction of the first positioning plate, a plurality of telescopic rods arranged perpendicular to the extension direction of the buffer strip, and a buffer spring mounted on each telescopic rod. A plurality of telescopic grooves corresponding to each telescopic rod are provided at the bottom of the first positioning plate, and the telescopic rods are slidably arranged in the telescopic grooves. Both ends of each buffer spring act on the inner walls of the telescopic rod and the telescopic groove respectively. The buffer strip buffers the impact force received by the first positioning plate through the sliding cooperation of the telescopic rod and the telescopic groove and the continuous force of the buffer spring.

3. A double-layer foldable house according to claim 2, characterized in that: Each first plate body is rotatably connected to the upper roof plate through a first hinge body, each second plate body is rotatably connected to the top of the main room body through a first hinge body, and the top front roof plate and the top rear roof plate are rotatably connected to the upper roof plate through a first hinge body; The first hinge body includes a first rotating groove and a first rotating ear for rotationally matching, the front end, rear end, left end and right end of the edging profile of the upper top plate are provided with a first rotating groove extending from one section to the other end along its extension direction, the top front roof board, the top rear roof board, and the upper end of the edging profile of each first plate body are provided with a first rotating ear extending from one end to the other end along its extension direction, the left end and the right end of the edging profile at the top of the main room body are provided with a first rotating groove extending from one end to the other end along its extension direction, the lower end of the edging profile of the second plate body is provided with a first rotating ear extending from one end to the other end along its extension direction, each first rotating ear and each first rotating groove are integrally formed with the corresponding edging profile, and the top room body is stored, folded or unfolded on the main room body through the cooperation of each first rotating ear and the first rotating groove.

4. A double-layer foldable house according to claim 3, characterized in that: A first positioning groove is provided on the front end surface of the top front roof board, a first positioning column corresponding to the first positioning groove is provided on the top end of the main room body, a second positioning groove is provided on the rear end surface of the top rear roof board, and a second positioning column corresponding to the second positioning groove is provided on the top end of the main room body. The first positioning column extends into the first positioning groove after the top front roof board is rotated and unfolded, and positions and supports the top front roof board. The second positioning column extends into the second positioning groove after the top rear roof board is rotated and unfolded, and positions and supports the top rear roof board.

5. A double-layer foldable house according to claim 4, characterized in that: The second plate body is provided with a first limiting hole corresponding to the first positioning column and a second limiting hole corresponding to the second positioning column. The first positioning column is inserted into the first limiting hole after the second plate body is rotated and folded, and the second positioning column is inserted into the second limiting hole after the second plate body is rotated and folded.

6. A double-layer foldable house according to claim 5, characterized in that: The first plate body and the second plate body are rotatably connected through a second hinge body, and the second hinge body includes an intermediate body, a second rotation groove symmetrically arranged on the intermediate body, and second rotation ears corresponding to each second rotation groove. The edging profile at the lower end of the first plate body and the edging profile at the upper end of the second plate body are provided with a second rotation ear extending from one end to the other end along its extension direction. Each second rotation groove of the intermediate body extends from one end of the intermediate body to the other end of the intermediate body along the extension direction of the intermediate body. Each second rotation ear and the second rotation groove are integrally formed with the corresponding edging profile, and each second rotation ear is rotatably arranged in the corresponding second rotation groove. The first plate body and the second plate body are folded, stored or unfolded through the cooperation of each second rotation ear and the corresponding second rotation groove.

7. A double-layer foldable house according to claim 6, characterized in that: The upper end of the main room is provided with an entrance, the main room is connected with the top room through the entrance, and the main room is provided with a staircase, the upper end of the staircase is located at the entrance.

8. The double-layer foldable house according to claim 7, characterized in that: The four top corners at the bottom end of the main room body are provided with support legs for supporting the main room body, and a storage bin is located between the oppositely arranged support legs, and a fork groove for inserting a fork of a forklift is formed between the oppositely arranged support legs and the storage bin.

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