Prefabricated cabin

Abstract

The invention relates to the field of transformer substation devices with waterproof shells, in particular to a prefabricated cabin. The prefabricated cabin comprises a side wall framework and an outer wall plate arranged on the side wall framework, the outer wall plate comprises a plurality of sealing plate modules which are sequentially spliced, a stand column and the adjacent sealing plate modules are connected in a sealed mode through a sealing butt joint structure, and every two adjacent sealing plate modules are connected in a sealed mode through a sealing butt joint structure. The sealing butt joint structure comprises a U-shaped butt joint groove or a side edge L-shaped butt joint folding edge which is arranged on the stand column and the sealing plate module, the side edge L-shaped butt joint folding edge comprises a first attaching edge and a second attaching edge, and the first attaching edge and the second attaching edge which are in butt joint are fixedly connected through the first attaching edge or the second attaching edge. The stand columns and the sealing plate modules are connected in a sealed mode through the sealing butt joint structures, and the adjacent sealing plate modules are connected in a sealed mode through the sealing butt joint structures, so that the sealing performance of the external wall panel is better. And the outer sealing plate module deforms due to the influence of environmental factors, so that the sealing performance of the prefabricated cabin is influenced.

Description

Technical Field

[0001] The invention relates to the field of transformer substation devices with waterproof shells, and in particular to a prefabricated cabin. Background Art

[0002] The prefabricated cabin is an important embodiment of the new technologies, new materials and new equipment applied in smart substations. It includes a prefabricated cabin body and internal equipment. The internal equipment includes secondary equipment cabinets (or racks), cabin auxiliary facilities, etc. The prefabricated cabin is manufactured, assembled, wired, debugged and transported to the project site as a whole, and is located on the installation foundation.

[0003] The Chinese invention patent with application publication number CN118639741A discloses a prefabricated cabin structure, including a prefabricated cabin body, the prefabricated cabin body includes a frame as a skeleton, the frame includes columns and a crossbeam arranged between two columns, the prefabricated cabin body also includes an outer wall panel installed on the frame, the outer wall panel includes a sealing plate module assembled in sequence, on the same side wall of the prefabricated cabin body, the sealing plate module is sequentially spliced ​​along the length direction of one side wall and installed on the frame, and the sealing plate module relies on the tight splicing between the side walls of the two sealing plate modules after being sequentially spliced ​​to ensure the sealing of the prefabricated cabin. However, the outer sealing plate module may be deformed under the influence of environmental factors such as temperature changes and sunlight for a long time, and the deformation of the outer sealing plate module will cause a gap to appear in the place where the two sealing plate modules are spliced ​​tightly, thereby reducing the sealing of the prefabricated cabin. After the sealing of the cabin body is reduced, dust and the like will enter the cabin body, thereby causing damage to the equipment inside the cabin body. Summary of the invention

[0004] The object of the present invention is to provide a prefabricated cabin body, so as to solve the problem that a gap may appear between two spliced ​​sealing plate modules of the existing prefabricated cabin outer wall panels due to deformation of the sealing plate modules, thereby affecting the sealing performance of the prefabricated cabin.

[0005] In order to achieve the above-mentioned purpose, the prefabricated cabin of the present invention adopts the following technical solutions: A prefabricated cabin body comprises a base and side walls fixed at the edge of the base, the side walls comprising a side wall frame and an outer wall panel, the side wall frame comprising columns, the outer wall panel comprising a plurality of sealing panel modules spliced ​​in sequence, the columns and the adjacent sealing panel modules and the adjacent two sealing panel modules are sealedly connected by a sealing docking structure, the columns and the sealing panel modules both have plate parts parallel to each other and to the corresponding edges of the base, the sealing docking structure comprises a U-shaped docking groove with an opening facing outward and extending vertically provided at the side edge of one of the plate bodies, and a side L-shaped docking folded edge formed by continuously folding the side edge of the plate body inward, the side L-shaped docking folded edge comprises a first bonding edge perpendicular to the plate body and bonded to the groove wall of the U-shaped docking groove, and a second bonding edge parallel to the plate body and bonded to the groove bottom of the U-shaped docking groove, the two butted against each other are fixedly connected at the first bonding edge or the second bonding edge.

[0006] Furthermore, the sealing docking structures arranged on the relative edges of two adjacent columns are both the U-shaped docking grooves, and the sealing plate module includes a first sealing plate module and a second sealing plate module. The sealing docking structures arranged on the two side docking edges of the first sealing plate module are respectively U-shaped docking grooves and side L-shaped docking folds, and the sealing docking structures arranged on the two side docking edges of the second sealing plate module are both side L-shaped docking folds.

[0007] Furthermore, the columns include corner columns located at the corners of the base and a middle column located between the two corner columns, and the sealing docking structures arranged on the opposite side edges of the middle column are both U-shaped docking grooves.

[0008] Furthermore, the middle column is a split splicing structure that is symmetrical about the vertical plane.

[0009] Furthermore, the two sealing plate modules butted against each other are fixedly connected at the second fitting edge by a threaded connector.

[0010] Furthermore, the side wall frame also includes a middle frame located between two adjacent columns, the middle frame includes frame columns and frame beams, the frame columns and frame beams have frame fitting edges parallel to the exterior wall panels, and the second fitting edge of the closing panel module corresponding to the frame fitting edge in a direction perpendicular to the closing panel module is fixedly connected to the frame fitting edge.

[0011] Furthermore, a long strip hole extending along the length direction of the frame beam is provided on the frame mating edge, and a circular mounting hole is provided at the second mating edge of the two sealing plate modules butted against each other. The second mating edge of the sealing plate module corresponding to the frame mating edge in a direction perpendicular to the sealing plate module is fixedly connected to the frame mating edge by a threaded connector passing through the long strip hole and the circular mounting hole.

[0012] Furthermore, the side wall frame also includes an L-shaped baffle plate arranged at the upper and lower ends of the middle frame, and a fixed folded edge is vertically folded along a folded edge of the L-shaped baffle plate for fixed connection with the sealing module. The fixed folded edge is parallel to the edge of the base and coplanar with the fitting edge of the frame.

[0013] Furthermore, the sealed docking structure also includes an end L-shaped docking fold formed by continuously folding inward the end edge of the plate body in the sealing plate module. When the sealing connection is made, a U-shaped docking groove corresponding to the end L-shaped docking fold is provided with an avoidance notch for avoiding the end L-shaped docking fold. The end L-shaped docking fold includes a third bonding edge that is parallel to the plate body and is bonded and fixedly connected to the fixed fold.

[0014] Furthermore, the side wall also includes a fireproof heat-insulating layer arranged on the inner side of the side wall frame.

[0015] Beneficial effect: The prefabricated cabin outer sealing plate of the present invention is an improved invention, specifically, it includes a side wall frame and an outer wall panel, the outer wall panel includes sealing plate modules spliced ​​in sequence, the columns and the sealing plate modules and the adjacent sealing plate modules are sealed and connected by a sealed docking structure, the sealed docking structure adopts a U-shaped docking groove and a side L-shaped docking fold, the first bonding edge in the side L-shaped docking fold is bonded to the groove wall of the U-shaped docking groove, and the second bonding edge in the side L-shaped docking fold is bonded to the groove bottom of the U-shaped docking groove, such a docking connection method forms a folded sealing path, realizes the continuous assembly of the sealing plate modules and makes the sealing of the outer wall panels connected in sequence better, and the U-shaped docking groove and the side L-shaped docking fold can also improve the structural strength at the docking position, and it is not easy to cause the sealing plate module to deform due to environmental factors. It solves the problem that when the existing sealing plate modules are directly spliced ​​and installed on the side wall of the prefabricated cabin body, the outer sealing plate modules are deformed due to environmental factors, thereby affecting the sealing of the prefabricated cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the prefabricated cabin of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the prefabricated cabin after removing the outer cover plate; Figure 3 for Figure 1 A top view schematic diagram of the sealing plate modules between the two middle columns when they are sealed and connected in sequence; Figure 4 for Figure 3 Schematic diagram of the central corner column; Figure 5 for Figure 1 A schematic diagram of the structure of the corner columns when looking out from the inside of the prefabricated cabin; Figure 6 For Figure 5 The top view of the corner column as the main view; Figure 7 for Figure 3 A schematic diagram of the first sealing module; Figure 8 for Figure 1 A schematic diagram of the structure of the first sealing plate module when looking outward from the inside of the prefabricated cabin; Fig. 9 For Figure 8 A top view of the first sealing plate module when used as a front view; Fig.10 for Figure 3 A schematic diagram of the second sealing module; Fig.11 for Figure 1 A schematic diagram of the structure of the second sealing plate module when looking outward from the inside of the prefabricated cabin; Fig.12 for Figure 3 Schematic diagram of the center split column; Fig.13 for Figure 1 A schematic diagram of the structure of the split columns when looking out from the inside of the prefabricated cabin; Fig.14 For Fig.13 The top view of the split column when used as the main view; Fig.15 for Figure 1 Schematic diagram of the structure of the middle L-shaped baffle; Fig.16 for Fig.15 Side view of the middle L-shaped baffle.

[0017] In the figure: 1. base; 2. side wall frame; 3. exterior wall panel; 4. sealing panel module; 41. first sealing panel module; 42. second sealing panel module; 5. column; 51. corner column; 52. middle column; 521. split column; 6. sealed docking structure; 61. U-shaped docking groove; 611. groove bottom; 612. groove wall; 62. side L-shaped docking folded edge; 621. first fitting edge; 622. second fitting edge; 7. plate body; 9. middle frame; 91. frame column; 92. frame beam; 93. frame fitting edge; 10. third fitting edge; 11. avoidance gap; 12. fireproof heat insulation layer; 130. L-shaped baffle; 13. upper baffle; 14. lower baffle; 151. fixed folded edge; 161. through hole; 17. long strip hole; 18 circular mounting hole; 19. end L-shaped docking folded edge. DETAILED DESCRIPTION

[0018] The present invention provides a sealing docking structure on the sealing plate module and the column, so that the column of the prefabricated cabin side wall frame and the adjacent sealing plate module and the two adjacent sealing plate modules are sealed and docked through the sealing docking structure, avoiding the problem of wire gaps between the two adjacent sealing plate modules caused by deformation of the sealing plate module, thereby affecting the sealing of the prefabricated cabin.

[0019] Based on the above concept, the prefabricated cabin body of the present invention includes a prefabricated cabin body, such as Figure 1-3 The side wall shown includes a base 1 and a side wall fixed at the edge of the base 1. The side wall includes a side wall frame 2 and an outer wall panel 3, and also includes a fireproof heat insulation layer arranged on the inner side of the side wall frame. The side wall frame 2 includes a column 5, and the outer wall panel 3 includes a plurality of sealing board modules 4 spliced ​​in sequence. The column 5 and the adjacent sealing board module 4 and the adjacent sealing board modules 4 are sealed by a sealing docking structure 6. The column 5 and the sealing board module 4 have a plate body 7 parallel to each other and parallel to the corresponding base edge. The sealing docking structure 6 includes a plate body 7 arranged on one of the side edges of the plate body 7. The U-shaped docking groove 61 is opened outward and extends vertically at the edge, and the side L-shaped docking folded edge 62 is arranged on the other side and is continuously folded inward at the side edge of the plate body 7. The side L-shaped docking folded edge 62 includes a first bonding edge 621 that is perpendicular to the plate body and is bonded to the groove wall 612 of the U-shaped docking groove 61, and a second bonding edge 622 that is parallel to the plate body 7 and is bonded to the groove bottom 611 of the U-shaped docking groove 61. The two docked ones are fixedly connected at the first bonding edge 621 or the second bonding edge 622.

[0020] like Figure 7-11 As shown, a plurality of sealing modules 4 spliced ​​in sequence include a first sealing module 41 and a second sealing module 42. For the sake of convenience of description, two adjacent columns are respectively designated as the first column and the second column. The first sealing module 41 is used to connect to the adjacent first column and the adjacent first sealing module 41 or the adjacent second sealing module 42. The second sealing module 42 is used to connect to the adjacent first sealing module 41 and the second column.

[0021] When the first column is connected to the first sealing plate module 41 adjacent to it, the sealing docking structure 6 on the first column can be a U-shaped docking groove 61 or a side L-shaped docking fold 62. In one embodiment, when the sealing docking structure 6 on the first column is a U-shaped docking groove 61, the sealing docking structure 6 on one side of the first sealing plate module 41 adjacent to it is a side L-shaped docking fold 62 that is sealed and connected to the U-shaped docking groove 61 on the first column, and the sealing docking structure 6 on the other side of the first sealing plate module 41 is a U-shaped docking groove 61. The first sealing plate module 41 is connected to the adjacent first sealing plate module 41 through the U-shaped docking groove 61 on the other side. The side L-shaped docking fold 62 on one side of the next first sealing plate module 41 is connected, and so on, and the installation is carried out in sequence. When the last sealing plate module is installed between the two columns, the last sealing plate module is the second sealing plate module 42. If the sealing docking structure 6 on the second column is a U-shaped docking groove 61, then at this time, one side and the other side of the second sealing plate module 42 are both side L-shaped docking folds 62. If the sealing docking structure 6 on the second column is a side L-shaped docking fold 62, then at this time, one side of the second sealing plate module 42 is the side L-shaped docking fold 62, and the other side is the U-shaped docking groove 61.

[0022] In other embodiments, the sealing docking structure 6 on the first column can also be a side L-shaped docking fold 62. In this case, the sealing docking structure 6 on one side of the first sealing plate module 41 adjacent to it is a U-shaped docking groove 61, and the sealing docking structure 6 on the other side is a side L-shaped docking fold 62; if the sealing docking structure 6 on the second column is a side L-shaped docking fold 62, then the sealing docking structures 6 on one side and the other side of the second sealing plate module 42 are both U-shaped docking grooves 61. If the sealing docking structure 6 on the second column is a U-shaped docking groove 61, then the sealing docking structure 6 on one side of the second sealing plate module 42 is a U-shaped docking groove 61, and the sealing docking structure 6 on the other side is a side L-shaped docking fold 62.

[0023] In a preferred embodiment, in order to facilitate processing, the sealing docking structure 6 of the first column and the second column is the same, and the sealing docking structure 6 on one side and the other side of the second sealing plate module 42 is also the same. In order to make the sealing docking structure better in sealing connection, preferably, the sealing connection knot 6 of the first column and the second column is a U-shaped docking groove 61, the sealing connection knot 6 on the second sealing plate module 42 is a U-shaped docking groove 61, the sealing docking structure 6 on one side of the first sealing plate module 41 is a side L-shaped docking fold 62, and the sealing docking structure 6 on the other side is a U-shaped docking groove 61.

[0024] like Figure 4-6 and Figure 12-14As shown, the column 5 includes a corner column 51 at the corner of the base 1 and an intermediate column 52 between the two corner columns 51. According to the length of the side wall of the prefabricated cabin, multiple groups of intermediate columns 52 can be set. The sealing module 4 is installed between the corner column 51 and the adjacent group of intermediate columns 52 and the adjacent two groups of intermediate columns 52 according to actual needs. The sealing module 4 will be connected to the opposite side walls of the intermediate column 52 between the two corner columns 51, and the sealing docking structure 6 on the opposite side walls of the intermediate column 52 is a U-shaped docking groove 61. The intermediate column 52 is a split splicing structure symmetrical about the vertical plane, including two split columns 521 set in a mirror image. In other embodiments, the intermediate column 52 can also be an integrated structure.

[0025] Specifically, in one embodiment, a circular mounting hole is opened on the groove wall 612 of the U-shaped docking groove 61 of the corner column 51 or the middle column 52, and a circular mounting hole is opened on the first fitting edge 621 on the first sealing plate module 41, and then the threaded connecting piece is passed from the inner side of the groove wall 612 of the U-shaped docking groove 61 of the corner column 52 through the circular mounting hole on the groove wall 612 and the circular mounting hole 18 on the first fitting edge 621, thereby fixing one end of the first sealing plate module 41 on the corner column 52.

[0026] When two adjacent first sealing plate modules 41 and an adjacent first sealing plate module 41 and a second sealing plate module 42 are connected and fixed, a circular mounting hole can also be opened on the groove wall 612 of the U-shaped docking groove 61 of the first sealing plate module 41, and a circular mounting hole 18 can be opened on the first mating surface 621 of the side L-shaped docking fold 62 of the adjacent first sealing plate module 41 or the second sealing plate module 42, and then the threaded fasteners are passed through the circular mounting holes on the groove wall 612 and the circular mounting holes 18 on the first mating surface 621 from the inner side of the groove wall 612 of the U-shaped docking groove 61, thereby realizing the connection between the two sealing plate modules.

[0027] In a preferred embodiment, a long strip hole 17 is opened on the groove bottom 611 of the U-shaped docking groove 61 of the corner column 52, and a circular mounting hole 18 is opened on the second fitting edge 622 on the first sealing plate module 41. When connected and fixed, the first fitting edge 622 is fitted with the groove bottom 611, and then the threaded connection piece is passed from the inner side of the groove bottom 611 of the U-shaped docking groove 61 of the corner column 52 through the long strip hole 17 on the groove bottom 611 and the circular mounting hole 18 on the second fitting edge 622, so as to fix one side of the first sealing plate module 41 to the corner column 52.

[0028] When two adjacent first sealing plate modules 41 and adjacent first sealing plate modules 41 and second sealing plate modules 42 are connected and fixed, a long strip hole 17 is opened on the groove bottom 611 of the U-shaped docking groove 61 of the first sealing plate module 41 and a circular mounting hole 18 is set on the second fitting edge 622 of the L-shaped docking folded edge of the adjacent first sealing plate module 41 or the second sealing plate module 42. When connected and fixed, the second fitting edge 622 is fitted with the groove bottom 611, and then the threaded connecting piece is passed from the inner side of the groove bottom 611 of the U-shaped docking groove 61 through the long strip hole 17 of the groove bottom 611 and the circular mounting hole 18 on the second fitting edge 622, thereby realizing the connection and fixation of the two sealing plate modules.

[0029] In a preferred embodiment, the side wall skeleton 2 also includes a middle frame 9 obtained by welding and arranged between two columns. The middle frame 9 is a plane frame, which is used to fix and install the sealing plate modules 4 that are sealed and docked with each other. The middle frame 9 includes a frame column 91 and a frame beam 92. The frame column 91 and the frame beam 92 are located in the same plane. The frame column 91 and the frame beam 92 have a frame fitting edge 93 parallel to the exterior wall panel 3. The second fitting edge 622 of the sealing plate module 4 that fits with the frame fitting edge 93 is fixedly connected to the frame fitting edge 93. The frame column 91 and the frame beam 92 are preferably "C"-shaped beams. The bottom edges of the frame columns 91 and the frame beams 92 that are opposite to the openings together constitute the frame fitting edge 93. The frame fitting edge 93 is provided with an opening. In order to adapt to the sealing plate modules of different widths and to facilitate installation, preferably, the opening on the frame fitting edge 93 is a long strip hole 17 extending along the length direction of the frame beam. When the sealing plate module 4 is fixedly installed on the middle frame 9, the second fitting edge 622 of the sealing plate module 4 corresponding to the frame fitting edge 93 in a direction perpendicular to the sealing plate module 4 is fixedly connected to the frame fitting edge 93 by a threaded connector passing through the elongated hole 17 and the circular mounting hole 18.

[0030] like Figure 15-16 As shown, the side wall frame 2 also includes an L-shaped baffle 130 arranged on the middle frame 9, and the L-shaped baffle 130 includes a horizontal plate and a vertical edge arranged perpendicular to each other, and a fixed folded edge 151 is folded in the upward and downward directions along the outer edge of the horizontal edge for fixed connection with the sealing plate module, and the fixed folded edge 151 is parallel to the edge of the base and coplanar with the fitting edge of the frame, and a circular mounting hole 18 is provided on the fixed folded edge 151, and a return folded edge is folded in the horizontal direction along the outer edge of the vertical edge, and a through hole 161 is provided on the vertical edge of the L-shaped baffle 130 parallel to the fixed folded edge 151.

[0031] The L-shaped baffle 130 includes an upper baffle 13 arranged at the upper end of the middle frame 9 and a lower baffle 14 arranged at the lower end of the middle frame 9. The upper and lower baffles are relatively arranged at the upper and lower ends of the middle frame 9. The upper and lower baffles are arranged parallel to the frame beam 92 and are located in the same horizontal plane. A fixed folded edge 151 is vertically folded along a folded edge of the L-shaped baffle 130 for fixed connection with the sealing plate module 4.

[0032] The sealing docking structure 6 also includes an end L-shaped docking fold 19 formed by continuously folding the end edge of the plate body 7 of the sealing plate module 4 inward, and a corresponding avoidance notch 11 is provided on the U-shaped docking groove for avoiding the end L-shaped docking fold 19. In other embodiments, the avoidance notch 11 can also be provided on the end L-shaped docking fold 19. The end L-shaped docking fold 19 includes a third bonding edge 10 that is parallel to the plate body and is bonded and fixedly connected to the fixed fold 151. A circular mounting hole 18 is provided on the third bonding edge 10. When fixedly connected, at the through hole 161, the threaded connection is passed through the circular mounting hole 18 on the fixed fold 151 and the third bonding edge 10 to fix the upper and lower ends of the sealing plate module 4 to the L-shaped baffle 130 on the side wall frame 2.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A prefabricated cabin, comprising a base and a side wall fixed at the edge of the base, wherein the side wall comprises a side wall frame and an outer wall panel, the side wall frame comprises a column, and the outer wall panel comprises a plurality of cover plate modules spliced ​​in sequence, characterized in that: The column and the adjacent sealing plate module and the two adjacent sealing plate modules are sealed and connected by a sealing docking structure. The column and the sealing plate module have plate parts that are parallel to each other and to the corresponding base edges. The sealing docking structure includes a U-shaped docking groove with an opening facing outward and extending vertically provided at the side edge of one of the plate bodies, and a side L-shaped docking folded edge formed by continuously folding the side edge of the plate body inward, the side L-shaped docking folded edge includes a first bonding edge that is perpendicular to the plate body and bonded to the groove wall of the U-shaped docking groove, and a second bonding edge that is parallel to the plate body and bonded to the groove bottom of the U-shaped docking groove, and the two that are docked with each other are fixedly connected at the first bonding edge or the second bonding edge.

2. The prefabricated cabin according to claim 1, characterized in that: The sealing docking structures arranged on the relative edges of two adjacent columns are the U-shaped docking grooves. The sealing plate module includes a first sealing plate module and a second sealing plate module. The sealing docking structures arranged on the two side docking edges of the first sealing plate module are respectively U-shaped docking grooves and side L-shaped docking folds, and the sealing docking structures arranged on the two side docking edges of the second sealing plate module are respectively side L-shaped docking folds.

3. The prefabricated cabin according to claim 2, characterized in that: The columns include corner columns located at the corners of the base and a middle column located between the two corner columns. The sealing butt joint structures arranged on the edges of the two opposite sides of the middle column are both U-shaped butt joint grooves.

4. The prefabricated cabin according to claim 3, characterized in that: The middle column is a split splicing structure that is symmetrical about the vertical plane.

5. The prefabricated cabin according to any one of claims 1 to 4, characterized in that: The two sealing plate modules butted against each other are fixedly connected at the second abutting edge by a threaded connector.

6. The prefabricated cabin according to claim 5, characterized in that: The side wall frame also includes a middle frame located between two adjacent columns, the middle frame includes frame columns and frame beams, the frame columns and frame beams have frame fitting edges parallel to the exterior wall panels, and the second fitting edge of the closing panel module corresponding to the frame fitting edge in a direction perpendicular to the closing panel module is fixedly connected to the frame fitting edge.

7. The prefabricated cabin according to claim 6, characterized in that: The frame mating edge is provided with a long strip hole extending along the length direction of the frame beam, and the two sealing plate modules connected to each other are provided with a circular mounting hole at the second mating edge. The second mating edge of the sealing plate module corresponding to the frame mating edge in a direction perpendicular to the sealing plate module is fixedly connected to the frame mating edge by a threaded connector passing through the long strip hole and the circular mounting hole.

8. The prefabricated cabin according to any one of claims 1 to 4, characterized in that: The side wall frame also includes an L-shaped baffle plate arranged at the upper and lower ends of the middle frame. A fixed folded edge is folded upward and downward along the outer edge of the horizontal side of the L-shaped baffle plate for fixed connection with the sealing module. The fixed folded edge is parallel to the edge of the base and coplanar with the fitting edge of the frame.

9. The prefabricated cabin according to claim 8, characterized in that: The sealed docking structure also includes an end L-shaped docking fold formed by continuously folding inward the end edge of the plate body in the sealing plate module. When sealed, a U-shaped docking groove corresponding to the end L-shaped docking fold is provided with an avoidance notch for avoiding the end L-shaped docking fold. The end L-shaped docking fold includes a third fitting edge parallel to the plate body and fitably connected to the fixed fold.

10. The prefabricated cabin according to any one of claims 1 to 4, characterized in that: The side wall also includes a fireproof heat-insulating layer arranged on the inner side of the side wall frame.

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