Open integrated toilet system and its construction method

Abstract

An open integrated toilet system and its construction method. The toilet system includes a building main body and a chassis assembly and a wall assembly located within the building main body. There is a drain pipe within the building main body. The chassis assembly is provided with a leveling frame and a chassis module. The leveling frame includes a support frame and a height adjustment device. The chassis module includes a waterproof bottom shell, and the waterproof bottom shell includes a bottom plate and side plates. The side plates are provided with U-shaped channels, and a floor drain pipe and / or a washbasin drain pipe are fixedly provided in the middle of the bottom plate. The inside of the waterproof bottom shell is filled with a filling material to form a filling body. A waterproof layer is provided on the top surface of the filling body, and a floor layer is provided on the top surface of the waterproof layer. The wall assembly includes columns respectively fixed at the corners of the waterproof bottom shell, and wall modules are provided between adjacent columns. An inner wall panel is fixedly provided on the inner side of the wall module, and an outer wall panel is provided on the outer side.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and particularly relates to an open integrated toilet system and a construction method thereof. Background Art

[0002] In construction projects, the toilet is the most complex to construct due to its complex pipelines and usage environment. It not only has many processes and takes a long time, but also is likely to affect the overall project progress due to mistakes in a certain process. Currently, when constructing a toilet in a building, the general process is civil engineering wall building - pipeline embedding - waterproof construction - interior decoration - installation of sanitary appliances. This involves multiple wet operation processes, not only with low operation accuracy and large errors, but also a long construction period. In addition, the above process has relatively high requirements for the skills and experience of construction technicians. Correspondingly, the labor cost is also greatly increased, which has an adverse impact on the project cost and reduces the overall efficiency.

[0003] For existing integral toilets, although they achieve prefabrication from the perspective of interior decoration, they do not solve the traditional construction problems in the early civil engineering stage. Due to the need for error tolerance, instead, a gap needs to be added between the wall and the decorative layer, resulting in ineffective occupation of space and a hollow feeling on the wall surface. Summary of the Invention

[0004] The purpose of the present invention is to provide an open integrated toilet system, which reorders the processes of wall building, waterproof construction, ground backfilling, etc. in the civil engineering link, and the processes of pipeline paving, secondary waterproofing, finish assembly, equipment and component installation, etc. in the decoration link fundamentally according to the manufacturing logic, and integrates the toilet completely according to the concept of an industrial assembly in the way of modular manufacturing and on-site assembly.

[0005] Another purpose of the present invention is to provide a construction method for the open integrated toilet system, which is simple to operate, highly efficient in construction, has low requirements for construction personnel, and can greatly reduce the time cost and labor cost of the project.

[0006] To achieve the above purposes, the present invention adopts the following technical solutions:

[0007] An open integrated toilet system is applied in a building main body. The inside of the building main body is an open space without a dedicated toilet partition wall. A through drain pipe is provided in the building main body, and a secondary drain opening is provided at the bottom of the drain pipe. The open integrated toilet system is characterized in that it includes a chassis assembly and a wall assembly located in the building main body. The chassis assembly is an integral structure, and the wall assembly is inserted around the chassis assembly.

[0008] Further, the chassis assembly includes a waterproof apron, a leveling frame, and a chassis module; the waterproof apron is shell-shaped and covers the outer periphery of the bottom of the drain pipe and the constant pressure pipe, and a notch with a U-shaped cross-section is provided on the side of the waterproof apron; the leveling frame includes a top support frame and a plurality of height adjustment devices located on the bottom surface of the support frame; the chassis module includes a waterproof bottom shell, which is provided on the top of the support frame and includes a bottom plate and side plates located around the bottom plate; a U-shaped channel with a U-shaped cross-section is provided at the position of the side plate corresponding to the notch and is communicated with the inside of the waterproof bottom shell; the bottom surface of the U-shaped channel is not higher than the bottom plate; the end of the U-shaped channel is located inside the waterproof apron and is clamped in the notch; a vertical floor drain pipe and / or a washbasin drain pipe is fixedly provided in the middle of the bottom plate and is connected to a horizontal sewage pipe through a pipeline, and the sewage pipe extends into the waterproof apron through the U-shaped channel and is connected to the drain pipe; a height adjustment frame is provided at the edge of the top surface of the bottom plate, and the top surface of the height adjustment frame is higher than the top surface of the floor drain pipe and / or the washbasin drain pipe; the inside of the waterproof bottom shell is filled with a filling material to form a filling body, a waterproof layer is provided on the top surface of the filling body, and a floor layer is provided on the top surface of the waterproof layer; the top outlet of the floor drain pipe and / or the washbasin drain pipe passes through the floor layer;

[0009] The wall assembly includes a plurality of columns, which are respectively fixed at the corners of the waterproof bottom shell or corresponding wall openings, and a rectangular wall module is fixedly provided between adjacent columns and is locked by a locking member. The wall module is provided with a door opening; an inner wall panel is fixedly provided on the inner side of the wall module, and an outer wall panel is provided on the side of the outer side that is not adjacent to the wall of the building main body; the bottom of the inner wall panel is inserted into the inside of the waterproof bottom shell.

[0010] In one embodiment, the height adjustment device includes a base, a vertical adjustment screw is fixedly provided on the top surface of the base, the adjustment screw is arranged in the support frame, an adjustment nut is sleeved on the adjustment screw, and the bottom surface of the support frame is supported and limited by the adjustment nut.

[0011] In one embodiment, a notch is provided at the position of the support frame corresponding to the U-shaped channel, and the U-shaped channel passes through the notch; the cross-section of the side plate is stepped and includes a vertical first plate and a second plate, which are connected by a horizontal third plate; the bottom end of the first plate is fixedly connected to the edge of the bottom plate, and both the second plate and the third plate are located outside the bottom plate; the first plate is located inside the support frame, and the third plate is supported on the top surface of the support frame.

[0012] In one embodiment, a rectangular support protection frame is provided between the third plate and the top surface of the support frame; the columns, the inner wall panel, and the height adjustment frame are all arranged on the third plate.

[0013] In one embodiment, the height-adjusting frame includes a rectangular first height-adjusting frame and a second height-adjusting frame. The cross-section of the first height-adjusting frame is an inverted L shape and is located at the tops of the first plate and the third plate. The cross-section of the second height-adjusting frame is rectangular and is located at the top of the first height-adjusting frame.

[0014] In one embodiment, the surface of the bottom plate has an inclination towards the U-shaped channel, and the surfaces of the filling body and the floor layer have an inclination towards the floor drain pipe; the filling material is polystyrene board and / or polyurethane or foamed cement.

[0015] In one embodiment, a vertical kitchen drain pipe is further provided inside the waterproof bottom shell and is connected to the sewage pipe through a pipeline.

[0016] In one embodiment, the wall module includes a horizontal keel and a vertical keel that are perpendicularly connected to form a rectangular frame; cold and hot water pipes, circuits, and embedded parts are provided inside the rectangular frame, and a filling material is filled.

[0017] In one embodiment, an inspection opening is provided at a position of the wall module close to the drain pipe, and inspection doors are provided on the inner wall panel and the outer wall panel corresponding to the inspection opening; a toilet door is provided inside the door opening.

[0018] A construction method of the open integrated toilet system described above includes the following steps:

[0019] A. Fix the floor drain pipe, the washbasin drain pipe, and the sewage pipe inside the waterproof bottom shell in the factory, and pass the pipe orifice of the sewage pipe through the U-shaped channel; fix the height-adjusting frame inside the waterproof bottom shell, and then spray and fill the filling material inside the waterproof bottom shell to form a filling body; make a waterproof layer on the top surface of the filling body, and lay a floor layer on the top surface of the waterproof layer.

[0020] B. Place the leveling frame in the indoor space of the building main body and close to the drain pipe, level the top surface of the support frame through the height-adjusting support, and place a support protection frame on the top surface of the support frame; place the constructed waterproof bottom shell on the support frame; connect the sewage pipe to the drain pipe.

[0021] C. Fix columns at the end corners of the waterproof bottom shell, and fix wall modules between the columns, and lay cold and hot water pipes and circuits inside the wall modules; install an inner wall panel on the inner side of the wall module and an outer wall panel on the outer side.

[0022] The beneficial effects of the present invention are as follows: The open integrated toilet system and its construction method of the present invention have a high degree of industrialization, high construction efficiency, simple operation, and low requirements for construction personnel, and can greatly reduce the time cost and labor cost of the project. Description of the Drawings

[0023] Figure 1It is a schematic structural diagram of the open integrated toilet system of the present invention.

[0024] Figure 2 It is a schematic structural diagram of the building main body of the open integrated toilet system of the present invention.

[0025] Figure 3 It is a schematic structural diagram of the chassis assembly of the open integrated toilet system of the present invention.

[0026] Figure 4 It is an exploded schematic diagram of the chassis assembly of the open integrated toilet system of the present invention.

[0027] Figure 5 It is a schematic structural diagram of the wall assembly of the open integrated toilet system of the present invention.

[0028] Figure 6 It is an exploded schematic diagram of the wall assembly of the open integrated toilet system of the present invention.

[0029] Figure 7 It is a schematic structural diagram of the height adjustment device of the open integrated toilet system of the present invention. Detailed implementation manners

[0030] The following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings.

[0031] As Figure 1 、 Figure 2 shown, the present invention provides an open integrated toilet system, which is applied in a building main body 1. The interior of the building main body 1 is an open space, and the special toilet walls are not pre-built in advance, that is, there is no toilet partition wall. In this embodiment, a through exhaust pipe 11 is provided in the building main body 1. A drain pipe 12 and a constant pressure pipe 13 are provided on the side of the exhaust pipe 11. The constant pressure pipe 13 and the drain pipe 12 are connected by a horizontal pipe. The exhaust pipe and the drain pipe are installed conventionally. It is also possible not to provide an exhaust pipe, only a drain pipe, but a secondary platform, that is, a secondary drain port, is required to be provided below the household connection of the drain pipe. After installing the exhaust pipe 11 and the drain pipe 12, the floor slab is not blocked temporarily, and the shaft well does not need to be pre-built in advance, and the toilet does not need to be pre-coated with a waterproof layer. The open integrated toilet system includes a chassis assembly 2 and a wall assembly 3 located in the building main body. The chassis assembly 2 is an integral structure, and the wall assembly 3 is inserted around the chassis assembly 2 to form an integral toilet.

[0032] As Figure 3 、 Figure 4As shown in the figure, the chassis assembly 2 includes a waterproof apron 20, a leveling frame 21, and a chassis module. The waterproof apron 20 is shell-shaped and covers the outer periphery of the bottom of the drain pipe 12 and the constant pressure pipe 13. A notch 201 with a U-shaped cross-section is provided on the side of the waterproof apron 20. The leveling frame 21 includes a support frame 211 with a rectangular top and a plurality of height adjustment devices 212 located on the bottom surface of the support frame 211. The chassis module includes a waterproof bottom shell 22, and the waterproof bottom shell 22 is provided on the top of the support frame 211 and includes a rectangular bottom plate 221 and side plates 222 located around the bottom plate 221. At the position corresponding to the notch 201, the side plate 222 is provided with a U-shaped channel 223 with a U-shaped cross-section, which is communicated with the inside of the waterproof bottom shell 22, and the bottom surface of the U-shaped channel 223 is not higher than the bottom plate 221. The end of the U-shaped channel 223 is located inside the waterproof apron 20 and is clamped in the notch 201. A vertical floor drain pipe 224 and / or a washbasin drain pipe 225 are fixedly provided in the middle of the bottom plate 221, and are connected to a horizontal sewage discharge pipe 226 through a pipeline. The sewage discharge pipe 226 extends into the waterproof apron 20 through the U-shaped channel 223 and is connected to the drain pipe 12. A rectangular height adjustment frame 23 is provided at the top edge of the top surface of the bottom plate 221, and the top surface of the height adjustment frame 23 is higher than the top surface of the floor drain pipe 224 and / or the washbasin drain pipe 225. The inside of the waterproof bottom shell 22 is filled with a filling material, such as one or more of polystyrene board, polyurethane, and foamed cement, to form a filling body 24. A waterproof layer 25 is provided on the top surface of the filling body 24, and a floor layer 26, such as ceramic tiles, is provided on the top surface of the waterproof layer 25. The top outlets of the floor drain pipe 224 and / or the washbasin drain pipe 225 pass through the floor layer 26. A vertical kitchen drain pipe 227 is also provided inside the waterproof bottom shell 22 and is connected to the sewage discharge pipe 226 through a pipeline, so that the sewer pipe that needs to be connected in the adjacent kitchen can be directly connected to the kitchen drain pipe 227, making the construction of the kitchen simpler. In this embodiment, the support frame, the waterproof bottom shell, and the height adjustment frame are all illustrated by rectangles. However, for some other solutions, the same is applicable, such as the "concave" shape.

[0033] This embodiment describes an ultra-thin same-floor drainage implementation scheme, in which the toilet adopts the rear wall water outlet method. When using a floor drain toilet, only connect the toilet drainage riser to the sewage discharge pipe.

[0034] As Figure 5 、 Figure 6As shown, the wall assembly 3 includes a plurality of columns 31. In this embodiment, four columns are taken as an example for illustration, but it is not limited thereto. The columns are respectively fixed at the four corners of the waterproof bottom shell 22 or at the positions corresponding to the wall openings. A rectangular wall module 32 is fixedly arranged between adjacent columns 31 and is locked by a locking member. The wall module 32 is provided with a door opening 33, and a bathroom door is arranged in the door opening 33. An inner wall panel 34 is fixedly arranged on the inner side of the wall module 32, and an outer wall panel 35 is arranged on the side of the outer side that is not adjacent to the wall of the building main body. The bottom of the inner wall panel 34 is inserted into the interior of the waterproof bottom shell 22, so that a small amount of accumulated water on the inner wall panel 34 of the bathroom can be diverted into the waterproof bottom shell 22 to prevent leakage. Specifically, the wall module includes a horizontal keel and a vertical keel that are perpendicularly connected to form a rectangular frame. Cold and hot water pipes 321, a circuit 322 and embedded parts are arranged in the rectangular frame, and filling materials are filled therein to improve the degree of prefabrication and construction speed. For convenient maintenance, an inspection opening is arranged at a position of the wall module 32 close to the drain pipe 12, and inspection doors are arranged at positions of the inner wall panel 34 and the outer wall panel 35 corresponding to the inspection opening.

[0035] Specifically, as Figure 4 , Figure 7 shown, the height adjustment device 212 includes a base 2121. A vertical adjustment screw 2122 is fixedly arranged on the top surface of the base 2121. The adjustment screw 2122 is arranged in the support frame 211. An adjustment nut 2123 is sleeved on the adjustment screw 2122, and the bottom surface of the support frame 211 is supported and limited by the adjustment nut 2123. A notch 2111 is arranged at a position of the support frame 211 corresponding to the U-shaped channel 223, and the U-shaped channel 223 passes through the notch 2111. The cross section of the side plate 222 is in a stepped shape and includes a vertical first plate 2221 and a second plate 2222, which are connected by a horizontal third plate 2223. The bottom end of the first plate 2221 is fixedly connected to the edge of the bottom plate 221, and both the second plate 2222 and the third plate 2223 are located outside the bottom plate 221. The first plate 2221 is located inside the support frame 211, and the third plate 2223 is supported on the top surface of the support frame 211. A rectangular support protection frame 27 is arranged between the third plate 2223 and the top surface of the support frame 211. Correspondingly, a notch 271 is arranged at a position of the support protection frame 27 corresponding to the U-shaped channel 223. The column 31, the inner wall panel 34 and the height adjustment frame 23 are all arranged on the third plate 2223. The height adjustment frame 23 includes a rectangular first height adjustment frame 231 and a second height adjustment frame 232. The cross section of the first height adjustment frame 231 is in an inverted L shape and is located at the top of the first plate 2221 and the third plate 2223. The cross section of the second height adjustment frame 232 is in a rectangular shape and is located at the top of the first height adjustment frame 231.

[0036] To divert accumulated water, the surface of the bottom plate 221 has an inclination towards the U-shaped channel 223 to divert a small amount of accumulated water in the waterproof bottom shell 22 into the waterproof apron 20. The surface of the filling body 24 and the surface of the floor layer 26 have an inclination towards the floor drain pipe 224 to divert the accumulated water on the floor layer 26 into the floor drain pipe 224.

[0037] The present invention also provides a construction method for the open integrated bathroom system described above, including the following steps:

[0038] A. Fix the floor drain pipe 224, the washbasin drain pipe 225, and the sewage drain pipe 226 in the waterproof bottom shell 22 at the factory, and pass the pipe orifice of the sewage drain pipe 226 through the U-shaped channel 223; fix the height-adjusting frame 23 in the waterproof bottom shell 22, and then spray and fill the filling material in the waterproof bottom shell 22 to form the filling body 24; make a waterproof layer 25 on the top surface of the filling body 24, and lay the floor layer 26 on the top surface of the waterproof layer 25;

[0039] B. Place the leveling frame 21 in the indoor space of the building main body 1 and close to the drain pipe 12, level the top surface of the support frame 211 through the height-adjusting support 212, and place the support protection frame 27 on the top surface of the support frame 211; place the waterproof bottom shell 22 after construction on the support frame 211; connect the sewage drain pipe 226 to the drain pipe 12;

[0040] C. Fix the columns 31 at each end corner of the waterproof bottom shell 22, and fix the wall modules 32 between the columns 21. Lay the cold and hot water pipes 321 and the circuit 322 in the wall modules 32; install the inner wall panel 34 on the inner side of the wall module 32 and the outer wall panel 35 on the outer side.

[0041] In the construction of existing bathrooms, first, the construction unit needs to construct the bathroom partition wall, do the bathroom waterproofing, and detect the waterproofing. Only after a series of procedures are qualified can the next step of interior decoration be carried out. The open integrated bathroom system of the present invention is a technology that does not require the construction unit to construct the bathroom partition wall, which can significantly save labor costs and time costs as a whole. Compared with the existing methods, the main components of the present invention are produced in the factory using machinery and equipment, with high production efficiency and controllable construction environment.

[0042] The existing traditional bathroom decoration has many processes, takes a long time, and has high requirements for construction workers. For slightly better prefabricated decoration, the size errors of various bathrooms in the same building are large, but the materials are customized only according to the smallest size, resulting in a huge waste of space. However, since all modules of the present invention are processed in the factory, the matching size and shape are accurate, and there is no need to reserve a fault tolerance margin. Therefore, the wall thickness is reduced, and the space between the building wall and the decorative wall is eliminated, thereby reducing the ineffective occupation of space. In addition, the integrated chassis assembly of the present invention is extremely convenient and quick to install, does not require technical level requirements, and is shortened from the traditional 10-20 days to 1-2 hours, greatly shortening the construction period and thereby reducing production costs.

[0043] The open integrated toilet system and the construction method thereof of the present invention have a high degree of industrialization, high construction efficiency, simple operation, low requirements for construction personnel, and can greatly reduce the time cost and labor cost of the project.

[0044] It should be noted that the above is only a preferred specific implementation mode of the present invention, and its purpose is to enable those skilled in the art to better understand the present invention. It should not be used to limit the scope and application of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit or principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An open integrated toilet system is applied within a building main body. The interior of the building main body is an open space without toilet partition walls. A through drain pipe is provided within the building main body, and a secondary drain opening is provided at the bottom of the drain pipe. It is characterized in that the open integrated toilet system includes a chassis assembly and a wall assembly located within the building main body. The chassis assembly is an integral structure, and the wall assembly is inserted around the chassis assembly. The chassis assembly includes a waterproof apron, a leveling frame, and a chassis module. The waterproof apron is shell-shaped and covers the outer periphery of the bottom of the drain pipe and the constant pressure pipe. A notch with a U-shaped cross-section is provided on the side of the waterproof apron. The leveling frame includes a top support frame and a plurality of height adjustment devices located on the bottom surface of the support frame. The chassis module includes a waterproof bottom shell, which is provided on the top of the support frame and includes a bottom plate and side plates located around the bottom plate. At the position corresponding to the notch, the side plate is provided with a U-shaped channel with a U-shaped cross-section, which is communicated with the inside of the waterproof bottom shell. A notch is provided on the support frame corresponding to the position of the U-shaped channel, and the U-shaped channel passes through the notch. The cross-section of the side plate is stepped, including a vertical first plate and a second plate, which are connected by a horizontal third plate. The bottom end of the first plate is fixedly connected to the edge of the bottom plate, and both the second plate and the third plate are located outside the bottom plate. The first plate is located inside the support frame, and the third plate supports on the top surface of the support frame. The wall assembly includes a plurality of columns, which are respectively fixed at the corners of the waterproof bottom shell. A rectangular wall module is fixedly provided between adjacent columns and locked by a locking member. The wall module is provided with a door opening. An inner wall panel is fixedly provided inside the wall module, and an outer wall panel is provided on the side that is not adjacent to the wall of the building main body on the outside. The bottom of the inner wall panel is inserted into the inside of the waterproof bottom shell. The columns, the inner wall panel, and the height adjustment frame are all provided on the third plate.

2. The open integrated toilet system according to claim 1, It is characterized in that the bottom surface of the U-shaped channel is not higher than the bottom plate; the end of the U-shaped channel is located within the waterproof apron and is clamped in the notch. A vertical floor drain pipe and / or a washbasin drain pipe is fixedly provided in the middle of the bottom plate and is connected to a horizontal sewage pipe through a pipeline. The sewage pipe extends into the waterproof apron through the U-shaped channel and is connected to the drain pipe. A height adjustment frame is provided at the edge of the top surface of the bottom plate, and the top surface of the height adjustment frame is higher than the top surface of the floor drain pipe and / or the washbasin drain pipe. The inside of the waterproof bottom shell is filled with a filling material to form a filling body. A waterproof layer is provided on the top surface of the filling body, and a floor layer is provided on the top surface of the waterproof layer. The top outlet of the floor drain pipe and / or the washbasin drain pipe passes through the floor layer.

3. The open integrated toilet system according to claim 2, It is characterized in that: The height adjustment device includes a base. A vertical adjustment screw is fixedly provided on the top surface of the base. The adjustment screw is arranged within the support frame, and an adjustment nut is sleeved on the adjustment screw. The bottom surface of the support frame is supported and limited by the adjustment nut.

4. The open integrated toilet system according to claim 2, It is characterized in that: A rectangular support protection frame is provided between the third plate and the top surface of the support frame.

5. The open integrated bathroom system according to claim 2, characterized in that: the height-adjusting frame includes a rectangular first height-adjusting frame and a second height-adjusting frame. The cross-section of the first height-adjusting frame is in an inverted L shape and is located at the tops of the first board and the third board. The cross-section of the second height-adjusting frame is rectangular and is located at the top of the first height-adjusting frame.

6. The open integrated bathroom system according to claim 2, characterized in that: the surface of the bottom board has a slope towards the U-shaped channel, and the surfaces of the filling body and the floor layer have slopes towards the floor drain pipe; the filling material is polystyrene board and / or polyurethane or foamed cement.

7. The open integrated bathroom system according to claim 2, characterized in that: a vertical kitchen drain pipe is further provided inside the waterproof bottom shell and is connected to the sewage pipe through a pipeline.

8. The open integrated bathroom system according to claim 2, characterized in that: the wall module includes a horizontal keel and a vertical keel that are perpendicularly connected to form a rectangular frame; cold and hot water pipes, circuits and embedded parts are provided inside the rectangular frame, and a filling material is filled.

9. The open integrated bathroom system according to claim 2, characterized in that: an inspection opening is provided at a position of the wall module close to the drain pipe, and inspection doors are provided at positions of the inner wall board and the outer wall board corresponding to the inspection opening; a bathroom door is provided inside the door opening.

10. A construction method of the open integrated bathroom system according to any one of claims 1-9, characterized in that it includes the following steps: A. Fix the floor drain pipe, the washbasin drain pipe and the sewage pipe in the waterproof bottom shell in the factory, and pass the pipe orifice of the sewage pipe through the U-shaped channel; fix the height-adjusting frame in the waterproof bottom shell, and then spray and fill the filling material in the waterproof bottom shell to form a filling body; make a waterproof layer on the top surface of the filling body, and lay a floor layer on the top surface of the waterproof layer; B. Place the leveling frame in the indoor space of the building main body and close to the drain pipe, level the top surface of the support frame through the height-adjusting support, and place a support protection frame on the top surface of the support frame; place the constructed waterproof bottom shell on the support frame; connect the sewage pipe to the drain pipe; C. Fix columns at the end corners of the waterproof bottom shell, and fix the wall module between the columns, and lay cold and hot water pipes and circuits in the wall module; install the inner wall board on the inner side of the wall module and the outer wall board on the outer side.

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