Fabricated box type house

Abstract

The utility model discloses an assembly type box-type house in the field of assembly type buildings, which comprises a main body frame and wallboards, the wallboards can be assembled into the frame and assembled with the frame to form the box-type house, each wallboard comprises a concrete layer, an inner thermal insulation layer is filled in the concrete layer, an outer thermal insulation layer is arranged on the concrete layer, and the outer thermal insulation layer is arranged on the outer thermal insulation layer. The outer heat preservation layer is located on the side, close to the outside of the box type house, of the concrete layer. The wallboard comprises a concrete layer and inner and outer heat preservation layers, and can support the structure and preserve heat and insulate heat. And through the modular design of the frame and the wallboards, different molds are allowed to be adopted for production, the appearance diversity is achieved while the standardization of the main body structure is guaranteed, and the mold input cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically a prefabricated modular house. Background Technology

[0002] Currently, there are two main production processes for cement houses on the market. One process involves prefabricating individual wall and floor slab components and then assembling them into a whole in a factory. This process is mainly used when the demand for prefabricated modular houses is small. It has low requirements for molds, a simple production process, and low production costs. However, the assembly of components into a whole is complex, resulting in poor overall integrity of the prefabricated modular house. The other process involves directly casting the modular house in one go. This process is mainly used when the demand for modular houses is large. However, because the production molds are fixed and difficult to modify, the modular house styles are limited, a single mold cannot meet the assembly needs of a rural house, and the one-time casting process uses only one type of material, preventing the use of other materials for combination production, leading to higher production costs. Utility Model Content

[0003] The purpose of this utility model is to provide a prefabricated container house, which improves the thermal insulation performance of the container house by setting internal and external insulation layers, and simplifies the assembly process by combining the main frame and wall panels.

[0004] The objective of this utility model is mainly achieved through the following technical solutions:

[0005] A prefabricated container house includes a main frame and wall panels. The wall panels can be assembled into the frame and assembled with the frame to form a container house. The wall panels include a concrete layer, the interior of which is filled with an inner insulation layer. An outer insulation layer is provided on the concrete layer, and the outer insulation layer is located on the side of the concrete layer closest to the outside of the container house.

[0006] There are two main production processes for traditional cement houses. One is to assemble precast single panels, which has low mold costs but poor overall integrity; the other is to cast the concrete in one go, which has good overall integrity but the fixed mold leads to limited styles and material combinations. Neither method can effectively integrate the insulation layer, resulting in complex construction or increased costs.

[0007] This design breaks down the house into two parts: a regular frame and variable wall panels. The modular design of the frame and wall panels allows for production using different molds, ensuring the standardization of the main structure while achieving diversity in appearance.

[0008] An insulation layer is embedded within the concrete layer, serving as both a structural support and a carrier for the insulation. Simultaneously, the inner insulation layer is protected from moisture damage by being encased in concrete, while the outer insulation layer supplements the overall thermal insulation performance.

[0009] Furthermore, the inner insulation layer is an extruded polystyrene board, the concrete layer completely covers the extruded polystyrene board, and the outer insulation layer has a decorative layer on the side away from the concrete layer.

[0010] Extruded polystyrene (XPS) board is used as the inner insulation layer. XPS board refers to rigid foam plastic board with a closed-cell structure. It has high compressive strength and low thermal conductivity, which can prevent heat transfer in the wall and improve the overall insulation performance of the wall.

[0011] A decorative layer is installed on the outside of the external insulation layer, integrating insulation and decoration functions. This allows the insulation material and decorative layer to be combined during the prefabrication stage, eliminating the need for separate installation of the exterior finish in traditional processes and simplifying the on-site assembly process.

[0012] Extruded polystyrene (XPS) boards are used as internal insulation layers and are cast into the concrete layer through mold positioning to form an integral structure. After the concrete cures, a rigid protective layer is formed to prevent the XPS boards from deforming or being damaged during subsequent handling and installation.

[0013] Furthermore, the main frame includes a frame and a top plate, with the top plate fixed to the top of the frame.

[0014] The main frame consists of two components: the frame itself and the roof slab. The frame is a spatial support structure composed of longitudinal columns and transverse beams, serving as the primary load-bearing system for the vertical loads of the container house. The roof slab is a horizontally installed roof component located on top of the frame.

[0015] Furthermore, the frame has a protruding structure on its side, which fits into the side of the concrete layer.

[0016] It also includes a connector that can pass through and connect the concrete layer to the protruding structure.

[0017] A protruding structure refers to a raised or recessed structure located on the side of the main frame.

[0018] This solution achieves efficient assembly of container houses by combining structural interlocking with mechanical connections. The synergistic effect of the two methods can accelerate assembly efficiency and enhance the stability of the structure.

[0019] Furthermore, the connector includes an embedded sleeve and a bolt, the embedded sleeve being disposed within the concrete layer, and the bolt passing through the protruding structure and being fixed to the embedded sleeve.

[0020] The solution achieves a reliable connection between the frame and the wall panel through a combination of pre-embedded sleeves and bolts. The positioning of the pre-embedded sleeves eliminates the need for complex positioning operations during assembly, while the bolted connection facilitates disassembly and maintenance, ensuring both assembly efficiency and modularity for reusability.

[0021] Furthermore, the connector also includes a washer located between the bolt and the protruding structure.

[0022] By adding washers between the bolts and the protruding structure, the elastic deformation characteristics of the washers can make the pressure distribution on the contact surface between the bolts and the protruding structure more uniform, while reducing the risk of bolt loosening due to vibration or external impact.

[0023] In summary, this utility model has the following advantages compared with the prior art:

[0024] 1. This modular container house production process involves disassembling traditional buildings into modules, designing each concrete house unit as a uniform main component, and producing them using the same mold. The varied walls are then produced as a single planar unit. Simultaneously, a reverse molding process is used to integrate decoration and insulation. After both are produced, they are bolted together to form a complete concrete house unit. This process ensures the quality of prefabricated concrete houses while reducing mold, material, and assembly costs during production. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a schematic diagram illustrating one embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the main framework of this application;

[0028] Figure 3 This is a schematic diagram of the wall panel used in this application;

[0029] Figure 4 This is a diagram showing the connection details between the wall panel and the main frame in this application;

[0030] Figure 5 For this application Figure 4 Enlarged view of section A;

[0031] The names corresponding to the reference numerals in the attached drawings are as follows: 1. Top plate; 2. Frame; 3. Wall panel; 301. Decorative layer; 302. Insulation layer; 303. Concrete layer; 304. Extruded polystyrene board; 4. Connector; 401. Embedded sleeve; 402. Bolt; 403. Washer. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0033] Example:

[0034] like Figures 1-5 As shown, a prefabricated container house includes a main frame and wall panels 3. The wall panels 3 can be assembled into the main frame and assembled with the main frame to form a container house. The wall panels 3 include a concrete layer 303. The concrete layer 303 is filled with an inner insulation layer 302. An outer insulation layer 302 is provided on the concrete layer 303. The outer insulation layer 302 is located on the side of the concrete layer 303 near the outside of the container house.

[0035] There are two main production processes for traditional cement houses. One is prefabricated single panels followed by assembly, which has low mold costs but poor overall integrity; the other is one-time casting, which has good overall integrity but the fixed mold leads to limited styles and material combinations. Neither method can effectively integrate the 302 insulation layer, resulting in complex construction or increased costs. For example, in rural housing construction projects, multiple modular housing units of different styles need to be built quickly, but traditional processes cannot achieve integrated insulation and flexible modular combination while controlling costs.

[0036] This design breaks down the building into two parts: a regular main frame and variable wall panels 3. The main frame refers to the supporting structure composed of multiple standardized components, which can be implemented using a steel structure or reinforced concrete main frame. Precision of the components is ensured through standardized mold production. Wall panels 3 are the enclosure components that work in conjunction with the main frame, specifically including a concrete layer 303 and internal and external insulation layers 302. The dimensions of wall panels 3 match the openings in the main frame to enable rapid assembly. The modular design of the main frame and wall panels 3 allows for production using different molds, ensuring standardization of the main structure while achieving aesthetic diversity and reducing mold investment costs.

[0037] The concrete layer 303 is the structural layer constituting the main body of the wall panel 3. It can be cast using lightweight concrete, serving as both a structural support and a carrier for the insulation layer 302. This reduces weight while maintaining structural strength, providing thermal insulation. The inner insulation layer 302 is embedded within the concrete layer 303, which can be achieved by pre-embedding and casting extruded polystyrene board 304. The concrete enclosure prevents the insulation material from being exposed, becoming damp, and detaching. The outer insulation layer 302 is placed on the outside of the concrete layer 303, and can be achieved by spraying and curing polyurethane foam, enhancing insulation performance while forming a protective surface layer.

[0038] In existing technologies, sandwich insulated wall panels generally consist of an inner leaf wall, an insulation board, connectors, and an outer leaf wall, forming a sandwich-like structure. The inner and outer leaf walls are typically made of reinforced concrete, the insulation board is usually a B1 or B2 grade organic insulation material, and the connectors are typically made of FRP high-strength composite material or stainless steel. The outer leaf of the sandwich wall is susceptible to thermal stress cracking, and long-term creep of the connectors may affect stability. This solution fills the hollow space inside the concrete layer 303 with an insulation layer 302, and then lays another insulation layer 302 on the outside, forming a double-layer insulation structure. This eliminates the complex connectors of the sandwich wall and avoids the risk of outer leaf plate delamination. In practical implementation, the integrated outer insulation layer and decorative layer not only provide excellent and durable insulation but also effectively reduce thermal bridging. Furthermore, the modular design of the main frame and wall panels allows for rapid assembly, reducing on-site construction time.

[0039] Furthermore, the inner insulation layer 302 is an extruded polystyrene board 304, the concrete layer 303 completely covers the extruded polystyrene board 304, and the outer insulation layer 302 has a decorative layer 301 on the side away from the concrete layer 303.

[0040] Extruded polystyrene board 304 is used as the inner insulation layer 302. Extruded polystyrene board 304 refers to a rigid foam plastic board with a closed-cell structure. It has high compressive strength and low thermal conductivity, which can prevent heat transfer in the wall and improve the overall insulation performance of the wall.

[0041] The extruded polystyrene board 304 is poured inside the concrete to form a composite structure, which not only ensures that the insulation material is not easily damaged during construction, but also enhances the structural stability of the wall panel 3. In actual production, the extruded polystyrene board 304 can be positioned in the mold and filled with concrete slurry during the casting of the precast wall panel 3. This design protects the insulation material from external damage during transportation and installation by covering it with rigid material.

[0042] A decorative layer 301 is installed on the outside of the outer insulation layer 302 to integrate insulation and decoration functions. This allows the insulation material and the decorative layer 301 to be combined during the prefabrication stage, eliminating the need for separate installation of the exterior finish in traditional processes and simplifying the on-site assembly process.

[0043] When several modular houses need to be assembled, the wall panels 3 at different locations can be produced using appropriate molds according to the different door and window openings.

[0044] Furthermore, the main frame 2 includes a frame 2 and a top plate 1, with the top plate 1 fixed to the top of the frame 2.

[0045] The main frame 2 consists of two components: frame 2 and roof slab 1. Frame 2 is a spatial support structure composed of longitudinal columns and transverse beams, which can be implemented using precast reinforced concrete components, serving as the main load-bearing system for the vertical load of the box-type house. Roof slab 1 is a horizontally installed roof component, which can be implemented using a reinforced concrete slab cast separately from frame 2.

[0046] In actual production, frame 2 and top plate 1 are cast as a single unit.

[0047] Furthermore, the frame 2 has a protruding structure on its side, which fits into the side of the concrete layer 303.

[0048] It also includes a connector 4, which can pass through and connect the concrete layer 303 to the protruding structure.

[0049] The protruding structure refers to the protrusion or groove structure set on the side of the main frame 2, which can be implemented in the form of a rectangular boss or a dovetail groove.

[0050] This solution achieves efficient assembly of the modular housing through a combination of structural interlocking and mechanical connections. The protruding structure on the side of the main frame 2 interlocks with the side of the concrete layer 303, limiting displacement between them through physical interlocking and improving initial positioning stability. Furthermore, a connector 4 is added, penetrating the concrete layer 303 and the protruding structure to form a rigid connection node, effectively counteracting shear forces generated under external loads, thus simplifying the assembly process while ensuring connection reliability. The synergistic effect of both methods ultimately achieves a balance between rapid assembly and structural stability.

[0051] Furthermore, the connector 4 includes a pre-embedded sleeve 401 and a bolt 402. The pre-embedded sleeve 401 is disposed within the concrete layer 303, and the bolt 402 passes through the protruding structure and is fixed to the pre-embedded sleeve 401.

[0052] The solution achieves a reliable connection between the frame 2 and the wall panel 3 through a combination structure of pre-embedded sleeve 401 and bolt 402.

[0053] The pre-embedded sleeve 401 is pre-embedded during the pouring stage of the concrete layer 303 to form a standardized connection node, avoiding damage to the structural strength caused by on-site drilling.

[0054] After the bolt 402 passes through the protruding structure of the frame 2, it engages with the sleeve thread to form a rigid connection through mechanical fastening, thereby enhancing the integrity of the wall panel 3 and the frame 2.

[0055] Furthermore, the connector 4 also includes a washer located between the bolt 402 and the protruding structure.

[0056] A washer is added between bolt 402 and the protruding structure. By utilizing the elastic deformation characteristics of the washer, the pressure distribution on the contact surface between bolt 402 and the protruding structure is made more uniform, while reducing the risk of bolt 402 loosening due to vibration or external impact.

[0057] The above plan, when implemented, includes the following steps:

[0058] The main frame 2 of the container house is manufactured according to the design drawings: the main frame 2 is produced by integral mold, the main frame 2 mold is assembled, the steel mesh of the main frame 2 is tied, the embedded parts and pipelines are installed, and the main frame 2 of the container house is poured in one go with C30 concrete.

[0059] For the production of wall panel 3: the mold for producing and assembling wall panel 3 is used. First, the decorative and thermal insulation integrated panel is placed at the bottom layer, then the steel mesh is placed at the top layer of the decorative and thermal insulation integrated panel, and C20 concrete is poured.

[0060] Assembly: Using a crane or overhead gantry, the pre-drilled holes of the separately manufactured modular box-type house wall panels 3 are aligned with the pre-drilled sleeves of the main frame 2 of the modular box-type house for installation, and then connected and fixed with M20 bolts 402. After the main frame 2 and wall panels 3 are assembled, the decorative parts on the main frame 2 are fixedly installed with decorative panels, thus completing the modular box-type house.

[0061] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A prefabricated modular house, characterized in that, The container includes a main frame and wall panels (3). The wall panels (3) can be assembled into the main frame and assembled with the frame (2) to form a container house. The wall panels (3) include a concrete layer (303). The interior of the concrete layer (303) is filled with an inner insulation layer (302). An outer insulation layer (302) is provided on the concrete layer (303). The outer insulation layer (302) is located on the side of the concrete layer (303) near the outside of the container house.

2. The prefabricated modular house as described in claim 1, characterized in that: The inner insulation layer (302) is an extruded polystyrene board (304), the concrete layer (303) completely covers the extruded polystyrene board (304), and the outer insulation layer (302) has a decorative layer (301) on the side away from the concrete layer (303).

3. The prefabricated modular house as described in claim 1, characterized in that: The main frame includes a frame (2) and a top plate (1), with the top plate (1) fixed to the top of the frame (2).

4. A prefabricated modular house as described in claim 1, characterized in that: The main frame has a protruding structure on its side, which is fitted into the side of the concrete layer (303); It also includes a connector (4) that penetrates and connects the concrete layer (303) to the protruding structure.

5. A prefabricated modular house as described in claim 4, characterized in that: The connector (4) includes a pre-embedded sleeve (401) and a bolt (402). The pre-embedded sleeve (401) is disposed in the concrete layer (303), and the bolt (402) passes through the protruding structure and is fixed to the pre-embedded sleeve (401).

6. A prefabricated modular house as described in claim 5, characterized in that: The connector (4) also includes a washer located between the bolt (402) and the protruding structure.

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