Fabricated rural house system and design method thereof

Abstract

The invention discloses an assembly type rural house system and a design method thereof.The assembly type rural house system comprises a house body, functional prefabricated modules and modular connecting devices, the house body comprises first prefabricated parts with reserved first connecting parts and spliced floor slabs, and the spliced floor slabs are formed by horizontally splicing a plurality of second prefabricated parts; the second prefabricated part is provided with a reserved second connecting part, and the first prefabricated part and the second prefabricated part are mutually fixed through an assembly type connecting structure; the first prefabricated part is provided with a plurality of predefined assembling areas, the modular connecting device is arranged between the assembling areas of the first prefabricated part and the functional prefabricated modules in an embedded or external mode, and the functional prefabricated modules are configured to allow the functional prefabricated modules to be selectively installed in the different assembling areas of the first prefabricated part according to design requirements. The problem that the design flexibility and the transportation convenience are difficult to consider while the construction efficiency and the structural integrity of an existing assembled farm house are guaranteed is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a prefabricated rural housing system and its design method. Background Art

[0002] In recent years, with the continuous development of the rural economy, farmers' requirements for housing quality have been increasing day by day. At the same time, the problem of rural labor shortage has gradually emerged, and the traditional rural housing construction method is facing challenges such as insufficient labor and low construction efficiency. The prefabricated rural housing technology can just solve these problems and meet the new needs of rural housing construction. Prefabricated rural housing is a new rural housing construction mode in which some or all components of the rural housing are prefabricated in the factory and then transported to the construction site for assembly and installation. This mode has changed the traditional way of decentralized on-site construction and manual operation of rural housing, and realized the standardization, industrialization and assembly of rural housing construction.

[0003] The existing prefabricated rural housing systems are mainly divided into the panel assembly system and the module system. Among them, the panel assembly system has obvious advantages. First, it has good flexibility in size and specifications, can be customized according to various rural housing design requirements, and is suitable for the construction of various house types and architectural styles of rural housing, and can fully meet the personalized demands of farmers. Second, the volume of a single prefabricated panel component is small and the weight is light, which is quite convenient for transportation and loading and unloading. Even in rural areas with poor traffic conditions, it can be smoothly transported to the construction site. Third, the on-site assembly process is relatively simple, and the construction workers are easy to master the assembly technology, and the requirements for construction equipment are not high. Generally, a small hoisting device can meet the construction needs, effectively reducing the construction cost. However, in practical applications, the panel assembly system also exposes some drawbacks. On the one hand, although the components are prefabricated, there are a lot of on-site splicing and connection works, including the connection between wall panels and wall panels, between wall panels and floor slabs, and various joint treatments. This not only consumes a large amount of manpower but also takes a long time, and the construction efficiency is lower than that of the module system. On the other hand, in terms of the integrity of the overall structure of the house, the panel assembly system is slightly inferior to the module system. Because it is to assemble each panel component first and then form the overall structure, weak links are likely to appear at the connection parts, which has a certain impact on aspects such as the seismic performance of the house.

[0004] The module system also has outstanding highlights. First of all, the module has completed most of the construction work such as structural construction, decoration and equipment installation in the factory. Only the module assembly is required on site, which greatly shortens the on-site construction time and reduces the workload. It can quickly build farmhouses and significantly improve construction efficiency. Secondly, the module is an integral structure when it is made in the factory, with high strength and stability. After being assembled on site, it can form a good overall performance with the help of reliable connection methods, and the house has excellent earthquake resistance and wind resistance. Furthermore, the module is produced in the factory using standardized production processes and quality control systems, which can ensure the stability of module quality, reduce the interference of human factors on quality during on-site construction, and improve the overall quality of the house. However, the module system also has shortcomings in practical applications. On the one hand, the module is large in size and heavy in weight, requiring special large-scale transportation equipment, high transportation costs, and strict requirements on transportation routes. In rural areas with narrow roads or poor road conditions, transportation is easily restricted. On the other hand, the module is designed and manufactured according to the functions and dimensions of specific rooms. Once the design plan is determined, it is difficult to change it later, and the flexibility is not as good as the board assembly system. If farmers have temporary design change requirements during the construction process, it is often difficult to meet them.

[0005] Although the board-joined system has the advantages of flexible size, convenient transportation, and simple construction, it has problems such as numerous on-site splicing works, low construction efficiency, and weak overall structural performance of the house. Although the module system has the advantages of high construction efficiency, good structural integrity, and stable quality, it has defects such as transportation difficulties and poor design flexibility. Therefore, the board-joined system and the module system each have their own advantages and disadvantages, and it is difficult to meet the diverse needs of rural housing construction at the same time. Therefore, it is difficult for the existing technology to ensure construction efficiency and structural integrity while taking into account design flexibility and transportation convenience, and it is unable to fully meet the diverse needs of rural housing construction. In view of the above problems, the existing technology is in urgent need of improvement. Summary of the invention

[0006] In view of the defects of the above-mentioned prior art, the present invention provides a prefabricated farmhouse system and a design method thereof, which ensures construction efficiency and structural integrity while taking into account design flexibility and transportation convenience, and fully meets the diversified needs of rural housing construction.

[0007] The present invention is implemented by the following technical solutions: An assembled rural housing system includes a housing main body, a plurality of functional prefabricated modules, and a modular connection device. The housing main body includes a plurality of first prefabricated components and multi-layer spliced floors. Each layer of the spliced floor is horizontally spliced by a plurality of second prefabricated components. Each first prefabricated component has a reserved first connection part, and each second prefabricated component has a reserved second connection part. The first prefabricated component and the second prefabricated component are fixed to each other through an assemblable connection structure. The assemblable connection structure includes a rigid connection component that matches the first connection part and the second connection part. The first prefabricated component and the spliced floor form a spatial unit with a three-dimensional closed function. The first prefabricated component has a plurality of predefined assembly areas, and each functional prefabricated module has an interface structure that matches the first prefabricated component. The modular connection device is arranged between the assembly area of the first prefabricated component and the functional prefabricated module by embedding or external placement, and is used to realize the detachable positioning connection of the functional prefabricated module. The functional prefabricated module is configured to allow it to be selectively installed in different assembly areas of the first prefabricated component according to design requirements. Further, the functional prefabricated module includes a prefabricated staircase and a prefabricated bathroom, and pipelines or cable channels are embedded inside the prefabricated staircase and the prefabricated bathroom.

[0008] Further, the prefabricated staircase and the prefabricated bathroom are integrally prefabricated and installed in different assembly areas of the first prefabricated component.

[0009] Further, or the prefabricated staircase and the prefabricated bathroom are separately formed and installed in different assembly areas of the first prefabricated component.

[0010] Further, the assembly area of the first prefabricated component includes multiple levels of assembly layers in the vertical direction and / or multiple columns of assembly areas in the horizontal direction. Reserved holes are provided on the assembly layers and the assembly areas. The modular connection device includes a connecting piece passing through the reserved hole and a limiting piece tightly connected to the connecting piece.

[0011] Further, the first prefabricated component is a prefabricated wall panel, and the second prefabricated component is a horizontal prefabricated board. The rigid connection component includes a first steel bar that is inserted and matched with the first connection part and a second steel bar that is inserted and matched with the second connection part.

[0012] Further, the first connecting portion is a plurality of longitudinally arranged holes preset inside the precast wall panel, which are distributed in an array and penetrate through the bottom and top of the precast wall panel. The second connecting portion is a plurality of longitudinally arranged through holes preset at the edge of the horizontal precast slab. When the bottom of the precast wall panel is vertically assembled onto the horizontal precast slab, the second steel bars passing through the longitudinal through holes are inserted into the longitudinal holes of the precast wall panel one by one, and the upper ends of the second steel bars form a lap joint with the lower ends of the first steel bars inserted into the longitudinal holes. The upper ends of the first steel bars extend out from the top of the precast wall panel to be inserted into the longitudinal through holes of the horizontal precast slab. Further, two adjacent vertically arranged first precast components are butted to form a corner area. The two ends of the first precast component are provided with splicing step surfaces that penetrate through the precast wall panel up and down. Each splicing step surface is provided with a plurality of reinforcing components distributed in an array along the longitudinal direction. The reinforcing components of two adjacent first precast components are distributed in a vertically staggered manner within the corner area. Corner steel bars are inserted into the corner area. After the corner steel bars are inserted into the reinforcing components, concrete is poured to form a vertical joint.

[0013] Further, two adjacent second precast components are spliced with each other on the same horizontal plane to form a horizontal joint.

[0014] A design method for an assembled rural housing system, including the above-mentioned assembled rural housing system, the design steps are as follows: (1) According to the base area of the target site, the total building area of the target site, the building height, the number of floors and the preliminary requirements of the customer, determine the building appearance, the floors of the house and the room layout. Among them, the room layout includes the main body of the house and functional precast modules, and the functional precast modules are installed in the predefined assembly areas of the first precast components according to the design requirements; (2) According to the road transportation dimension standard, adjust the standard dimensions of the first precast component, the second precast component and the functional precast module, and adjust the position of the functional precast module in the main body of the house according to the design requirements to establish an assembled rural housing assembly model; (3) Establish a building structure calculation model, calculate the structural strength of the house and count the engineering quantity of materials; (4) Introduce cost parameters to obtain the corresponding construction cost; introduce construction and installation parameters to obtain the corresponding construction period required; (5) Send the design scheme output in step (4) to the customer. If the customer agrees, output the final rural housing design scheme. If the customer does not agree, return to step (1).

[0015] Compared with the prior art, the beneficial effects of the present invention at least include: The present invention realizes technical innovation in two dimensions, structural combination and functional expansion, by constructing a hierarchical collaborative assembly system. Among them, at the level of the main body of the house, the modular splicing of the first prefabricated component and the second prefabricated component is adopted, and the problems of complex on-site splicing and insufficient structural strength of the traditional board splicing system are solved by standardized matching of the reserved connection part and the rigid connection component. The combination of the first prefabricated component and the spliced floor slab forms a three-dimensional closed space unit, breaking through the limitations of traditional plane splicing and enhancing the overall rigidity of the building. At the functional expansion level, the functional prefabricated module has multi-position adjustability through the combined design of the predefined assembly area and the modular connection device. The modular connection device adopts a mixed layout of pre-embedded or external, which not only ensures the connection reliability but also takes into account the needs of later transformation. Its detachable positioning characteristics enable the functional module to flexibly adjust the installation position according to actual needs. The first prefabricated component and the second prefabricated component respectively bear the functions of the main structure and the floor slab, and realize rapid assembly through the standardized interface of the rigid connection component, which not only retains the advantage of convenient transportation of the board splicing system, but also improves the structural integrity through the three-dimensional space unit. Through the combined design of modular connection devices and functional prefabricated modules, the functional modules can be flexibly installed in different assembly areas. At the same time, prefabricated components and standardized connection structures are used. Under the premise of ensuring structural integrity and construction efficiency, design flexibility and transportation convenience are taken into account. It has the advantages of ensuring construction efficiency and structural integrity while taking into account design flexibility and transportation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is one of the schematic diagrams of the assembled farmhouse system of Example 1 of the present invention; Figure 2 It is a schematic diagram of the assembly of the foundation and the spliced floor slab according to the first embodiment of the present invention; Figure 3 This is one of the schematic diagrams of assembling the first prefabricated component and the spliced floor slab according to Embodiment 1 of the present invention; Figure 4 This is the second schematic diagram of the assembly of the first prefabricated component and the spliced floor slab in Example 1 of the present invention; Figure 5 is a schematic diagram of a second prefabricated component of Example 1 of the present invention; Figure 6 is one of the assembly drawings of the functional prefabricated module and the first prefabricated component of Embodiment 1 of the present invention; Figure 7 is the second assembly drawing of the functional prefabricated module and the first prefabricated component of Example 1 of the present invention, Figure 8 is a schematic diagram of splicing two adjacent first prefabricated components at a corner position according to Embodiment 1 of the present invention; Figure 9 yes Figure 8 Exploded view of the structure; Figure 10 It is a schematic diagram of connecting the first precast component and the second precast component in Embodiment 1 of the present invention through a rigid connection assembly; Figure 11 It is a schematic diagram of connecting the functional precast module and the first precast component in Embodiment 1 of the present invention through a modular connection device; Figure 12 It is a simple schematic diagram of installing the precast staircase and the precast bathroom in the side position of the main body of the house in Embodiment 1 of the present invention; Figure 13 It is a schematic diagram of installing the precast staircase and the precast bathroom in the middle position of the main body of the house in Embodiment 1 of the present invention; Figure 14 It is a schematic diagram of installing the precast staircase and the precast bathroom at different positions of the main body of the house in Embodiment 1 of the present invention, where S1 represents the precast staircase and S2 represents the precast bathroom; Figure 15 It is a flowchart of the assembly method of the prefabricated rural housing system in Embodiment 2 of the present invention; In the figure: 10, functional precast module; 11, precast staircase; 12, precast bathroom; 20, main body of the house; 21, first precast component; 211, longitudinal duct; 212, splicing step surface; 213, strengthening member; 214, corner area; 22, second precast component; 221, longitudinal through hole; 23, first steel bar; 24, second steel bar; 25, corner steel bar; 30, modular connection device; 31, reserved hole; 32, connecting piece; 33, limiting piece; 40, foundation. Detailed implementation manners Now, the exemplary embodiments will be described more comprehensively with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; on the contrary, these embodiments are provided so that the present invention is more comprehensive and complete, and the concept of the exemplary embodiments is fully conveyed to those skilled in the art. The same reference numerals in the figures denote the same or similar structures, and thus their repeated description will be omitted.

[0017] The words expressing position and direction described in the present invention are all illustrated with reference to the accompanying drawings, but can also be changed as needed, and all changes made are included in the protection scope of the present invention.

[0018] Currently, in rural housing construction, there is a contradiction between construction efficiency and structural performance. For example, in the traditional board splicing system, the components are scattered, resulting in cumbersome on-site splicing, while the modular system, although improving efficiency, sacrifices design flexibility. The personalized needs of farmers for the house layout and the limitations of transportation conditions form a double constraint. There is an urgent need for a new construction method that can be quickly installed and flexibly adjust the functional layout.

[0019] To solve the above problems, it is found in the R & D process that the core restricting the development of prefabricated rural houses lies in the collaborative assembly method between components. The traditional method prefabricates the main structure and functional modules integrally, resulting in over-limit transportation and inability to adapt to layout changes. Through analysis, it is found that decoupling the main support system and functional modules and establishing standardized interfaces at the connection parts can not only retain the advantages of modularization but also achieve flexible combination. The construction idea of the three-dimensional space unit comes from the improvement of the insufficient stiffness of the traditional plate splicing structure, and the overall stability is improved by adopting a three-dimensional connection method.

[0020] Therefore, the present invention proposes a prefabricated rural house system including a house main body 20, functional prefabricated modules 10 and a modular connection device 30.

[0021] Reference Figures 1 to 14 , a prefabricated rural house system provided by the present invention, includes a house main body 20, a plurality of functional prefabricated modules 10 and a modular connection device 30. The house main body 20 includes a plurality of first prefabricated components 21 and multi-layer spliced floors. Each layer of the spliced floor is horizontally spliced by a plurality of second prefabricated components 22. Each first prefabricated component 21 has a reserved first connection part, and each second prefabricated component 22 has a reserved second connection part. The first prefabricated component 21 and the second prefabricated component 22 are fixed to each other through an assemblable connection structure. The assemblable connection structure includes a rigid connection component matching the first connection part and the second connection part. The first prefabricated component 21 and the spliced floor form a space unit with a three-dimensional closed function; the first prefabricated component 21 has a plurality of predefined assembly areas, and each functional prefabricated module 10 has an interface structure matching the first prefabricated component 21. The modular connection device 30 is arranged between the assembly area of the first prefabricated component 21 and the functional prefabricated module 10 by embedding or external setting, and is used to realize the detachable positioning connection of the functional prefabricated module 10. The functional prefabricated module 10 is configured to allow it to be selectively installed in different assembly areas of the first prefabricated component 21 according to design requirements. In this embodiment, the main body 20 of the house is composed of a first prefabricated component 21 and a multi-layer spliced floor, each component is provided with a matching connection part and fixed by a rigid connection assembly to form a three-dimensional closed space, wherein the three-dimensional closed functional space unit refers to a stable structure formed by the three-dimensional connection of a vertical wall and a horizontal floor. Specifically, the first prefabricated component 21 and the second prefabricated component 22 are quickly assembled and positioned by a rigid connection assembly to complete the assembly of the main structure. The interface structure of the functional prefabricated module 10 forms a size matching relationship with the assembly area of the first prefabricated component 21, and the fixing can be completed by the modular connection device 30 during installation. The traditional board-jointed farmhouse system requires a large number of connectors to be welded on site, while the present invention reduces the amount of on-site work through a standardized plug-in structure. Compared with the overall modular house, the present invention separates the functional prefabricated module 10 from the main body 20 for transportation, so that the size of a single component meets the loading requirements of a conventional truck and adapts to the traffic conditions of rural roads. In the traditional method, the fixed functional prefabricated module 10 leads to a rigid layout, while the modular connection device 30 enables farmers to adjust the functional partition of the room according to changes in family members, and the design is flexible.

[0022] The present invention realizes technical innovation in two dimensions, structural combination and functional expansion, by constructing a hierarchical collaborative assembly system. In particular, at the level of the main body 20 of the house, the modular splicing of the first prefabricated component 21 and the second prefabricated component 22 is adopted, and the problem of complex on-site splicing and insufficient structural strength of the traditional board splicing system is solved by standardized matching of the reserved connection part and the rigid connection component. The combination of the first prefabricated component 21 and the spliced floor slab forms a three-dimensional closed space unit, breaking through the limitations of traditional plane splicing and enhancing the overall rigidity of the building. At the functional expansion level, the functional prefabricated module 10 has multi-position adjustability through the combined design of the predefined assembly area and the modular connection device 30. The modular connection device 30 adopts a mixed layout of pre-embedded or external, which not only ensures the connection reliability but also takes into account the needs of later transformation. Its detachable positioning characteristics enable the functional prefabricated module 10 to flexibly adjust the installation position according to actual needs. The first prefabricated component 21 and the second prefabricated component 22 respectively bear the functions of the main structure and the floor slab, and realize rapid assembly through the standardized interface of the rigid connection component, which not only retains the advantage of convenient transportation of the board splicing system, but also improves the structural integrity through the three-dimensional space unit. Through the combined design of the modular connecting device 30 and the functional prefabricated module 10, the functional prefabricated module 10 can be flexibly installed in different assembly areas. At the same time, prefabricated components and standardized connection structures are adopted. Under the premise of ensuring structural integrity and construction efficiency, design flexibility and transportation convenience are taken into account. It has the advantages of ensuring construction efficiency and structural integrity while taking into account design flexibility and transportation convenience.

[0023] It should be noted that the functional prefabricated module 10 is applicable to small spaces with fixed functions. Through factory-integrated production, the integrity of functions and construction accuracy are guaranteed, and complex on-site operations are reduced. The main housing body 20 is realized by means of board splicing, which is applicable to large flexible spaces and retains the advantages of flexibility in house type customization and convenience in transportation.

[0024] As a preferred embodiment, the functional prefabricated module 10 includes a prefabricated staircase 11 and a prefabricated bathroom 12, and pipelines or cable channels are embedded inside the prefabricated staircase 11 and the prefabricated bathroom 12.

[0025] In this embodiment, the prefabricated staircase 11 refers to a staircase unit that is precast in a factory and integrated with an internal pipeline channel. A cable embedded pipe penetrating the steps can be arranged inside it. For example, a PVC pipe or a metal sleeve is fixedly buried along the staircase structure. The prefabricated bathroom 12 refers to an independent bathroom unit that is integrally formed in a factory and integrated with water supply and drainage pipelines, and water supply and drainage pipe interfaces can be reserved inside it. The embedded pipeline or cable channel refers to a water and electricity path formed by reserving or embedding pipelines through a mold during the production process of the functional prefabricated module 10. For example, the pipelines are tied to the steel bar framework during the concrete pouring stage and then integrally formed.

[0026] Specifically, when the prefabricated staircase 11 is produced in a factory, the steps and the supporting structure are integrally cast, and a cable channel is arranged inside the steps. The direction of the cable channel is consistent with the inclination angle of the staircase, and exposed interfaces are reserved at both ends. During the prefabrication process of the prefabricated bathroom 12, the wall panel and the floor member are connected into a closed space, and drainage pipelines and water supply pipelines are embedded inside. The drainage pipeline is aligned with the position of the bathroom floor drain, and the water supply pipeline extends to the preset faucet installation point. At the construction site, the prefabricated staircase 11 is connected to the electrical pipelines of the building main body through the reserved cable channel, and the prefabricated bathroom 12 is connected to the external water supply and drainage system through the embedded pipelines, without the need for on-site grooving and pipeline laying.

[0027] In traditional prefabricated buildings, pipelines need to be grooved for the staircase and bathroom after the main structure is completed, which is likely to damage the internal structure of the prefabricated components and has low construction efficiency. However, for the technical solution of integrating pipeline channels inside the prefabricated module, on-site secondary construction is avoided through factory embedding, and the installation period is shortened. Although the existing modular system can achieve overall hoisting, the fixed positions of pipeline interfaces result in limited layout. In this embodiment, the standardized design of the embedded pipelines allows the modules to adjust the installation positions according to actual needs while maintaining the compatibility of pipeline connections. The present invention realizes the rapid docking of the functional prefabricated module 10 with the water and electricity systems of the building main body, reduces the on-site pipeline laying procedures, and avoids the weakening of the structural strength caused by grooving operations. The pipeline embedding design of the prefabricated staircase 11 and the bathroom forms an integral whole for the water and electricity systems and the main housing body 20, improving the structural stability. The standardized embedded interfaces enable the modules to adapt to the installation requirements of different assembly areas and meet the requirements for diverse spatial layouts of rural housing.

[0028] It can be understood that for rooms with fixed functions and small areas such as bathrooms and stairwells, the functional prefabricated module 10 method is adopted. For rooms with open spaces and strong functional plasticity such as living rooms, dining rooms, and bedrooms, the precast panel splicing method is adopted.

[0029] As a preferred implementation manner, referring to Figures 12 to 14 , the precast staircase 11 and the precast bathroom 12 are integrally prefabricated and installed in different assembly areas of the first precast member 21.

[0030] In this embodiment, integrally prefabricating means prefabricating the precast staircase 11 and the precast bathroom 12 into a single integral module in the factory. Specifically, it can be realized by means of mold casting or overall reinforcement after assembly. This method improves the structural integrity by reducing on-site installation links. In other embodiments, the precast staircase 11 and the precast bathroom 12 are separately formed and installed in different assembly areas of the first precast member 21. Among them, separately forming means splitting the precast staircase 11 and the precast bathroom 12 into independent modules for separate prefabrication. Specifically, it can be realized by adopting a standardized interface design to achieve rapid docking between the separate modules. This method solves the problem of limited transportation by reducing the volume of a single module. Specifically, when the transportation conditions at the construction site permit and a high requirement for the integrity of functional modules exists, an integrally prefabricated module is directly installed into the reserved assembly area of the first prefabricated component 21, and positioning and fixing are completed through the modular connection device 30, thereby reducing on-site assembly processes and ensuring the structural stability between components. When the transportation conditions are limited or the layout of functional modules needs to be adjusted, split-shaped modules are separately transported to the site, and the prefabricated staircase 11 and the prefabricated bathroom 12 are independently installed in different assembly areas according to actual requirements, and a reliable connection between the split modules and the first prefabricated component 21 is achieved through the interface structure. The two installation forms can be flexibly selected according to the actual scenario, which not only retains the structural integrity advantage of the module system but also avoids the problem of difficult transportation of the overall prefabricated module through the split design. Compared with the existing assembly system, due to the use of overall prefabrication, the module volume is too large to adapt to the rural road transportation conditions, and the fixed layout restricts the installation flexibility of the functional prefabricated module 10. However, in the present invention, the functional prefabricated module 10 is split into independent units through the split-shaped installation method, so that it meets the load and size limitations of conventional transport vehicles and at the same time allows the installation position to be adjusted according to the on-site conditions. In addition, the integrally prefabricated method can still be used as an optional solution for scenarios with strict structural performance requirements to achieve the balance between construction efficiency and structural reliability, effectively solving the problems of difficult transportation and rigid layout caused by the overall prefabrication of the module system, enabling the functional prefabricated module 10 to adapt to rural road conditions through split transportation and also allowing the selection of the overall or split installation form according to actual requirements, improving the design flexibility while ensuring the construction efficiency. At the same time, the two installation forms share the standardized interface structure and the modular connection device 30 to ensure the reliable connection between different forms of functional prefabricated modules 10 and the building main body 20, maintaining the structural integrity advantage of the prefabricated building.

[0031] As a preferred embodiment, referring to Figure 9 , the assembly area of the first prefabricated component 21 includes multiple assembly layers in the vertical direction and / or multiple assembly zones in the horizontal direction. Reserved holes 31 are provided on the assembly layers and the assembly zones. The modular connection device 30 includes a connecting piece 32 passing through the reserved holes 31 and a limiting piece 33 tightly connected to the connecting piece 32.

[0032] In this embodiment, the multiple assembly layers in the vertical direction refer to multiple installation levels set in the vertical height, enabling the functional prefabricated module 10 to be installed at different heights and solving the problem of limited layout caused by traditional single-plane installation. The multiple assembly zones in the horizontal direction refer to multiple installation columns divided on the horizontal plane, enabling the functional prefabricated module 10 to be flexibly arranged in the horizontal direction to adapt to the installation requirements of different-sized modules. The reserved holes 31 refer to through holes opened at intervals along the axis of the assembly layer or the assembly zone, and specifically, rectangular or circular hole structures can be used to form standardized connection points, facilitating the batch embedding and rapid positioning of the connecting piece 32.

[0033] The connecting member 32 refers to a load-bearing member passing through the reserved hole 31, and specifically, threaded steel bars or steel bolts can be used. A rigid support structure is formed through the through hole to bear the lateral load transfer of the functional precast module 10.

[0034] The limiting member 33 refers to a constraint member that is tightly fitted with the end of the connecting member 32. Specifically, nuts or snap devices can be used. Axial displacement of the connecting member 32 is prevented through mechanical locking to ensure the structural stability after module installation.

[0035] Specifically, a combination of vertical multi-level assembly layers and horizontal multi-column assembly areas is adopted, enabling the functional precast module 10 to freely select the installation position in three-dimensional space. The reserved holes 31 are distributed along the extension of the assembly layer or assembly area to form a continuous array of connection points, allowing the installation spacing to be adjusted according to the module size. After the connecting member 32 penetrates into the reserved hole 31, its length direction is consistent with the extension direction of the assembly layer or assembly area, forming a continuous force transmission path. The limiting member 33 implements tight constraints at both ends of the connecting member 32, eliminating the connection gap and avoiding stress concentration. When the functional precast module 10 is installed, after its interface structure is aligned with the reserved hole 31, rigid fixation is completed by inserting the connecting member 32 and assembling the limiting member 33, realizing the detachable installation of the module in any assembly layer or assembly area.

[0036] Compared with the traditional assembly system that only supports single-layer planar installation and has fixed connection points, resulting in limited module layout and difficult optimization of transportation dimensions. Through the composite assembly area division of vertical multi-level and horizontal multi-column in the present invention, the modules can be distributed across layers or horizontally extended, reducing the transportation volume of individual precast components. The standardized combined design of the reserved hole 31 and the connecting member 32 not only simplifies the on-site construction process but also avoids the additional cost of customized connecting members 32. The split assembly method of the limiting member 33 is more convenient for the later maintenance and position adjustment of the module compared with the traditional welding fixation process.

[0037] The present invention realizes the flexible positioning and installation of the functional precast module 10 in three-dimensional space, effectively improving the design freedom and reducing the transportation difficulty. The modular connection device 30 ensures the stable installation of modules of different sizes through the combined application of standardized reserved holes 31 and adjustable connecting members 32, while simplifying the construction process. The mechanical locking mechanism of the limiting member 33 can effectively prevent connection loosening and enhance the reliability of the structure during long-term use.

[0038] It can be understood that when the functional precast module 10 corresponds to multiple layers, the upper and lower layer connections of the module synchronously adopt the grouting anchor lap joint process to ensure that the module and the plate splicing area have equally excellent structural performance, and finally the two areas are coordinated to bear force through bolt spacing connection.

[0039] As a preferred embodiment, the first precast member 21 is a precast wall panel, the second precast member 22 is a horizontal precast slab, and the rigid connection assembly includes a first steel bar 23 that is inserted and matched with the first connection portion and a second steel bar 24 that is inserted and matched with the second connection portion.

[0040] In this embodiment, the precast wall panel refers to a factory precast member that serves as a vertical load-bearing member of the building main body 20. Specifically, it can be realized by means of concrete casting and embedding longitudinal ducts 211. Its installation accuracy is ensured through standardized design. The horizontal precast slab refers to a component unit of a multi-layer spliced floor slab. Specifically, it can be realized by a planar concrete member with longitudinal through holes 221 at the edges. It forms a continuous load-bearing surface through horizontal splicing. Among them, the horizontal precast slab can be a multi-functional composite slab. The first connection portion refers to a longitudinal force transmission channel preset in the precast wall panel. Specifically, it can be realized by an array of holes penetrating the top and bottom of the wall panel, and is used to form a positioning reference for steel bar insertion. The second connection portion refers to a constraint interface preset at the edge of the horizontal precast slab. Specifically, it can be realized by a through-hole structure aligned with the ducts of the precast wall panel, and is used to establish a horizontal connection path. The first steel bar 23 and the second steel bar 24 refer to split force transmission members. Specifically, they can be realized by threaded steel bars with different diameters, and form a continuous force-bearing system through upper and lower lapping.

[0041] Specifically, referring to Figure 10 , when the bottom of the first precast member 21 is vertically assembled onto the second precast member 22, the second steel bar 24 passes through the longitudinal through hole 221 of the horizontal precast slab and is inserted into the longitudinal duct 211 at the bottom of the precast wall panel. At least a part of the upper end of the second steel bar 24 forms a lap joint with the lower end of the first steel bar 23 pre-installed inside the precast wall panel, and the upper end of the first steel bar 23 extends out from the top of the precast wall panel to provide an insertion interface for the installation of the upper horizontal precast slab. Through the precise insertion of the steel bars in the longitudinal duct 211, a vertical force transmission path and a horizontal constraint mechanism are formed. The standardized interface design of the precast wall panel and the horizontal precast slab enables the two to be assembled without welding or bolt fixation. The lap length of the steel bars can be determined according to structural calculations. The wrapping effect of the longitudinal duct 211 on the steel bars during the insertion process improves the shear strength of the joint area and at the same time avoids the problem of low construction efficiency caused by on-site welding.

[0042] Compared with the traditional slab splicing system that uses on-site welding or bolt connection to fix the wall panel and the floor slab, a large amount of manual operation is required and the connection quality is greatly affected by the construction level. The present invention simplifies the connection process to a single action of positioning and insertion through the cooperation of standardized ducts of precast members and inserted steel bars, reducing on-site operation steps while ensuring connection accuracy. The lap length of the steel bars in the ducts is pre-calculated, and a reliable force transmission system can be formed, which is more conducive to improving the structural integrity than the traditional point connection method.

[0043] The present invention realizes the rapid positioning and installation of precast wall panels and horizontal precast slabs, effectively reducing the amount of on-site splicing work. The continuous force transmission system formed by the steel bar insertion significantly improves the shear bearing capacity of the connection nodes between the wall panels and the floor slabs, avoiding the problem of insufficient overall stiffness caused by weak connections in the traditional slab splicing system. The coordinated design of the standardized ducts and steel bars keeps the components independent during transportation, and only simple insertion is required at the construction site to complete the assembly, taking into account both structural performance and construction efficiency.

[0044] As a preferred embodiment, referring to Figure 3 , Figure 5 and Figure 10 , the first connecting portion is a plurality of longitudinally arranged ducts 211 that are preset inside the precast wall panel, are distributed in an array, and penetrate through the bottom and top of the precast wall panel. The second connecting portion is a plurality of longitudinally arranged through holes 221 that are preset at the edge of the horizontal precast slab and are distributed in an array. When the bottom of the precast wall panel is vertically assembled onto the horizontal precast slab, the second steel bars 24 that pass through the longitudinally arranged through holes 221 are inserted into the longitudinally arranged ducts 211 of the precast wall panel one by one, and the upper ends of the second steel bars 24 form a lap joint with the lower ends of the first steel bars 23 inserted in the longitudinally arranged ducts 211. The upper ends of the first steel bars 23 extend out from the top of the precast wall panel to be inserted into the longitudinally arranged through holes 221 of the horizontal precast slab. In this embodiment, the longitudinally arranged ducts 211 refer to channels that are arranged through along the height direction of the precast wall panel. Their cross-sectional shapes can be circular or rectangular, and are used to guide the insertion of the second steel bars 24 and limit the horizontal offset. The longitudinally arranged through holes 221 refer to vertically penetrating holes provided at the edge of the horizontal precast slab. Their distribution positions correspond to the longitudinally arranged ducts 211 one by one to ensure that the steel bars are accurately aligned with the wall panel ducts after passing through. The first steel bars 23 refer to vertical steel bars inserted in the longitudinally arranged ducts 211 of the precast wall panel. Their lower ends extend to the bottom of the ducts, and their upper ends extend out from the top of the wall panel. Specifically, they can be installed by the method of post-inserted steel bars and are used to form a continuous lap joint of the upper and lower layer steel bars. The second steel bars 24 refer to vertical steel bars that pass through the longitudinally arranged through holes 221 at the edge of the horizontal precast slab. Their lengths can exceed the upper ends of the longitudinally arranged through holes 221. Referring to Figure 2 , the second steel bars 24 are specifically steel bar structures extending from the upper surface of the foundation 40. The longitudinally arranged through holes 221 of the horizontal precast slab are inserted and connected with the vertical steel bars of the foundation 40 to fix the structural layer of the horizontal precast slab, and are simultaneously used to form a lap joint with the first steel bars 23 inside the precast wall panel.

[0045] Specifically, referring to Figure 10When the first precast component 21 (precast wall panel) is vertically assembled with the second precast component 22 (horizontal precast slab), after the second steel bar 24 passes through the longitudinal through-hole 221 of the second precast component 22, it is directly inserted into the longitudinal duct 211 of the first precast component 21. Since the longitudinal ducts 211 and the longitudinal through-holes 221 are arranged in an array, the positioning and alignment between the components are naturally achieved during the insertion process of the second steel bar 24. The upper end of the second steel bar 24 forms a lap joint with a preset length with the lower end of the first steel bar 23, and the vertical load is transmitted through the contact surface between the steel bars. The upper end of the first steel bar 23 extends to the top of the first precast component 21 to provide an insertion reference for the longitudinal through-hole 221 of the upper-layer second precast component 22. This connection method does not require on-site adjustment of the steel bar positions, and through the restraint effect of the precast longitudinal ducts 211, it ensures that the steel bars of each layer automatically form a force-bearing system. The steel bars in the lap joint area can be fixed by concrete pouring to form a grout-anchored lap joint structure, thus achieving a high-strength connection between the components and significantly improving the structural integrity.

[0046] Compared with the traditional prefabricated connection methods that mostly use exposed steel plate welding or bolt fastening, on-site positioning and calibration are required and the connection nodes are easily affected by construction errors. Some solutions use pre-embedded steel cage lap joints, but there are problems such as difficult steel bar alignment and insufficient lap length. However, through the complementary design of the precast longitudinal ducts 211 and the longitudinal through-holes 221 in the present invention, the steel bars are automatically centered under the action of the self-weight of the components, eliminating the manual adjustment link. The layout of the longitudinally distributed through-holes 221 in an array makes the connection points evenly distributed on the contact surface of the components, avoiding local stress concentration. At the same time, the design of the longitudinally distributed through-holes 221 in an array is conducive to standardized production. The continuous lap joint of the upper and lower layer steel bars forms a through-type force transmission system, effectively improving the structural integrity. The present invention realizes the rapid positioning and installation of the first precast component 21 and the second precast component 22, and reduces the construction adjustment time through the automatic alignment of the precast ducts and the steel bars. The mechanical lap joint between the steel bars forms a reliable force transmission mechanism, ensuring that the vertical load is transmitted along the continuous steel bar path and avoiding the thermal influence and strength loss brought by the traditional welding process. The extended design of the multi-layer steel bars simplifies the connection process of the upper and lower layer components, forms a standardized assembly system from bottom to top, and significantly improves the construction efficiency and structural stability. It should be noted that the first steel bar 23 in this embodiment is installed by a post-insertion method, which is fixed on the precast wall panel by a traditional pre-embedded method, and can solve the problems of complex molds during production and easy bending of the protruding steel bars during transportation existing in the pre-embedded method.

[0047] As a preferred embodiment, two adjacent vertically arranged first precast members 21 are butted to form a corner area 214. Splicing step surfaces 212 penetrating the precast wall panel up and down are provided at both ends of the first precast member 21. A plurality of strengthening members 213 distributed in an array are provided on each splicing step surface 212 along the longitudinal direction. The strengthening members 213 of two adjacent first precast members 21 are arranged in a vertically staggered manner within the corner area 214. Corner steel bars 25 are inserted into the corner area 214. After the corner steel bars 25 are inserted into the strengthening members 213, concrete is poured to form a vertical joint.

[0048] In this embodiment, with reference to Figure 8 and Figure 9 , the splicing step surface 212 refers to a stepped contact surface formed at the end of the first precast member 21. The strengthening member 213 refers to a longitudinal strengthening unit provided on the splicing surface of the precast wall panel, which is used to form a rigid connection node with the corner steel bar 25. The vertically staggered distribution means that the strengthening members 213 of adjacent first precast members 21 are alternately arranged in the vertical direction to form a cross-embedded shear-resistant structure. The corner steel bar 25 refers to a reinforced steel bar dedicated to connecting the corner area 214.

[0049] Specifically, when the sides of two first precast members 21 are vertically butted, the splicing step surfaces 212 at their ends form an interlocking contact surface, providing initial positioning support for the corner area 214. The strengthening members 213 longitudinally distributed on the splicing step surfaces 212 are arranged in a staggered manner, so that the connection nodes of adjacent first precast members 21 are distributed in a complementary manner in the vertical direction. The corner steel bars 25 are inserted into the internally distributed strengthening members 213 with a staggered distribution to form a continuous stress-bearing skeleton penetrating the corner area 214. Subsequently, concrete is poured into the joint to integrally connect the steel bars and the precast members. This structure builds a three-dimensional force transmission system through the combined action of mechanical interlocking between precast members and cast-in-place concrete, retaining the construction efficiency of precast assembly while achieving the overall performance of cast-in-place structures. In the traditional slab splicing system, a single row of steel bar insertion and mortar filling are mostly used in the corner area 214, which has problems such as weak shear resistance and a single force transmission path. The present invention optimizes the stress transmission path through the staggered connection nodes, and at the same time avoids the quality defect of incomplete concrete pouring due to dense steel bars. The present invention effectively improves the flexural and shear composite bearing capacity of the corner area 214 of the precast wall panel, ensuring that the structural integrity at the vertical joint reaches the standard of cast-in-place structures. The mechanical interlocking structure between precast members can bear the temporary load during the construction stage, and the combined design of the corner steel bars 25 and the staggered strengthening members 213 achieves a balance between construction convenience and structural reliability. The integral joint formed by cast-in-place concrete completely eliminates the hidden danger of gap leakage existing in traditional dry connections.

[0050] In addition, the present invention only sets connection points at key stress-bearing parts such as the wall corners, greatly reducing the number of vertical joints of the precast wall panels, reducing weak links from the source, and effectively solving the problems of numerous on-site joints and poor integrity of the house in the panel splicing system.

[0051] As a preferred embodiment, two adjacent second precast members 22 are spliced with each other on the same horizontal plane to form a horizontal connection joint.

[0052] In this embodiment, the horizontal connection joint refers to a continuous joint formed by aligning the edges of adjacent second precast members 22 in the horizontal direction. Specifically, bolt fastening, steel bar lapping or welding processes can be used to fix the joint. This horizontal connection joint is directly butt-jointed through the standardized interfaces at the edges of the second precast members 22, without the need for on-site angle adjustment or cutting, thus achieving rapid positioning and assembly.

[0053] Specifically, after the second precast members 22 are transported to the site, they are laid flat on the foundation 40 in the horizontal direction, and the edge interfaces of two adjacent second precast members 22 are aligned through preset positioning references. This planar splicing method enables multiple second precast members 22 to form a uniformly distributed stress transfer interface in the horizontal direction, avoiding local moment concentration caused by staggered joints, and at the same time providing a flat base condition for the construction of the floor waterproof layer. The traditional panel splicing system often uses staggered joint splicing or inclined butt-joint methods, which require on-site adjustment of the angles of the precast panels and complex positioning, resulting in reduced construction efficiency. The horizontal plane splicing directly butt-joints the second precast members 22 through the standardized interfaces at the edges, reducing the positioning time and manual adjustment processes, while ensuring uniform stress at the joint, improving the structural integrity. The present invention realizes the rapid assembly and reliable connection of the second precast members 22, simplifies the floor slab assembly process, shortens the construction period, and at the same time enhances the overall stiffness of the floor slab through the continuous force transmission characteristics of the horizontal connection joint, avoiding the crack risk caused by local stress concentration, and providing a flat condition for subsequent floor construction.

[0054] Embodiment 2 Reference Figure 15 The present invention also provides a construction method for an assembled rural housing system, including the above-mentioned assembled rural housing system. The design steps include: (1) According to the base area of the target site, the total building area of the target site, the building height, the number of floors and the preliminary requirements of the customer, determine the building appearance model, the floors of the house and the room layout. Among them, the room layout includes the house main body 20 and the functional precast modules 10, and the functional precast modules 10 are installed in the predefined assembly areas of the first precast members 21 according to the design requirements; (2)Adjust the standard sizes of the first precast component 21, the second precast component 22, and the functional precast module 10 according to the road transportation size standard, and adjust the position of the functional precast module 10 in the house main body 20 according to the design requirements to establish an assembled rural house assembly model; (3)Establish a building structure calculation model, calculate the structural strength of the house, and count the engineering quantity of materials; (4)Introduce cost parameters to obtain the corresponding construction cost; introduce construction and installation parameters to obtain the corresponding construction period required; (5)Send the design plan output in step (4) to the customer. If the customer agrees, output the rural house design plan. If the customer does not agree, return to step (1) for adjustment.

[0055] In this embodiment, the road transportation size standard refers to the load size range restricted by the transportation vehicle passage. By adjusting the precast component sizes to meet the transportation conditions, secondary cutting caused by over-limit transportation is avoided. The building structure calculation model refers to a digital mechanical model established based on the finite element analysis method, and the structural safety is verified by inputting material properties and load parameters. The predefined assembly area refers to the standardized connection area reserved on the precast component, and the quick positioning and installation of the functional precast module 10 are realized by setting a unified interface specification. The customer feedback loop mechanism refers to the interactive process of iteratively optimizing the design plan, and the compatibility between personalized design and industrialized production is realized by confirming the requirements multiple times.

[0056] Specifically, in the stage of determining the building layout, a three-dimensional space model is generated by integrating the base parameters and the customer requirements, and the assembly areas of the functional precast module 10 and the house main body 20 are matched to make the installation position of the functional precast module 10 adjustable. In the size adjustment stage, according to the maximum load width limit of the transportation vehicle, the first precast component 21 is divided into splicable standardized units, and at the same time, the dynamic configuration of the installation position of the functional precast module 10 on the main structure is allowed. In the structural calculation stage, a load distribution diagram is automatically generated through parametric modeling, and the cross-sectional dimensions of the components and the steel bar ratio are optimized synchronously. In the cost and construction period measurement stage, the precast ratio is associated with the construction process for calculation to form the economic indexes corresponding to different assembly schemes. In the plan confirmation stage, the design details are displayed through a three-dimensional visualization model, enabling the customer to intuitively participate in the plan modification, and finally achieving the balance between design flexibility and construction efficiency.

[0057] In traditional design methods, the size of prefabricated parts is out of line with transportation requirements, resulting in difficulties in transporting the module system or inefficient board assembly systems. The present invention simultaneously constrains the transportation size and installation position in the design, so that the prefabricated components can not only meet road transportation conditions, but also flexibly adjust the functional layout. The existing technology lacks a linkage mechanism between customer needs and engineering parameters, while the present invention forms a quantifiable basis for design scheme comparison through the simultaneous optimization of structural calculations and cost and construction periods, thereby avoiding the waste of resources caused by repeated modifications. The present invention realizes the automatic matching of the size of prefabricated components with transportation conditions, reducing the risk of over-limit transportation; by dynamically adjusting the installation position of the functional prefabricated module 10, the flexibility of the spatial layout is improved; by the collaborative calculation of structural safety and economy, material waste is reduced; through the closed-loop feedback of customer needs and engineering parameters, the design cycle is shortened and the feasibility of the scheme is improved, and finally, on the premise of ensuring construction efficiency and structural performance, the diversified construction needs of rural housing are met.

[0058] The prefabricated farmhouse system of the present invention adopts the method of functional prefabricated modules 10 for rooms with relatively fixed functional layout and small area such as toilets and stairwells. Because of their specific functions, they are prefabricated as modules in advance in the factory, which can better ensure functional integrity and construction accuracy. For rooms with relatively open space and strong functional plasticity such as living rooms, dining rooms, and bedrooms, the form of prefabricated panels is used. The functional prefabricated modules 10 can be flexibly positioned in the main body of the house 20 formed by the panels according to the overall planning of the farmhouse (such as central arrangement, side setting, or upper and lower layer dislocation), and the spacing and window positions of the first prefabricated components 21 can be flexibly adjusted around the functional prefabricated modules 10. In this way, the advantages of the functional prefabricated modules 10 in small spaces with specific functions are brought into play, and the flexibility of prefabricated panels in large spaces is utilized, thereby creating a new type of prefabricated farmhouse system with more practicality and flexibility. In this way, the construction quality and efficiency of fixed functional areas such as toilets and stairwells are guaranteed, and the design flexibility of other areas is retained, while the overall structural performance is improved, and the multi-faceted optimization of prefabricated farmhouse construction is achieved.

[0059] At the same time, the present invention effectively solves the difficult problems of numerous on-site joints and poor integrity of the house in the panel assembly system. The system reduces the number of vertical joints of prefabricated wall panels and only sets connection points at key positions such as wall corners. In terms of connection technology, a slurry anchor lap connection method is selected, which greatly enhances the connection strength and stability between the prefabricated components and significantly improves the integrity of the overall structure of the house.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Without departing from the principle and purpose of the present invention, those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. An assembled rural housing system, characterized in that, It includes a building main body (20), multiple functional prefabricated modules (10) and a modular connection device (30). The building main body (20) includes multiple first prefabricated components (21) and multi-layer spliced floor slabs. Each layer of the spliced floor slab is horizontally spliced by multiple second prefabricated components (22). Each first prefabricated component (21) has a reserved first connection part, and each second prefabricated component (22) has a reserved second connection part. The first prefabricated component (21) and the second prefabricated component (22) are fixed to each other through an assemblable connection structure. The assemblable connection structure includes a rigid connection component that matches the first connection part and the second connection part. The first prefabricated component (21) and the spliced floor slab form a spatial unit with a three-dimensional closed function. The first prefabricated component (21) has multiple predefined assembly areas. Each functional prefabricated module (10) has an interface structure that matches the first prefabricated component (21). The modular connection device (30) is arranged between the assembly area of the first prefabricated component (21) and the functional prefabricated module (10) by embedding or external placement, for realizing the detachable positioning connection of the functional prefabricated module (10). The functional prefabricated module (10) is configured to allow it to be selectively installed in different assembly areas of the first prefabricated component (21) according to design requirements.

2. The prefabricated rural housing system according to claim 1, wherein The functional prefabricated module (10) includes a prefabricated staircase (11) and a prefabricated bathroom (12). Pipes or cable channels are embedded inside the prefabricated staircase (11) and the prefabricated bathroom (12).

3. The prefabricated rural housing system according to claim 2, characterized in that, The prefabricated staircase (11) and the prefabricated bathroom (12) are integrally prefabricated and installed in different assembly areas of the first prefabricated component (21).

4. The prefabricated rural housing system according to claim 2, wherein, The prefabricated staircase (11) and the prefabricated bathroom (12) are separately formed and installed in different assembly areas of the first prefabricated component (21).

5. The prefabricated rural housing system according to claim 1, characterized in that The assembly area of the first prefabricated component (21) includes multiple levels of assembly layers in the vertical direction and / or multiple columns of assembly areas in the horizontal direction. Reserved holes 31 are provided on the assembly layers and assembly areas. The modular connection device (30) includes a connecting piece (32) passing through the reserved hole (31) and a limiting piece (33) tightly connected to the connecting piece (32).

6. The prefabricated rural housing system according to claim 1, characterized in that, The first prefabricated component (21) is a prefabricated wall panel, and the second prefabricated component (22) is a horizontal prefabricated slab. The rigid connection component includes a first steel bar (23) inserted and matched with the first connection part and a second steel bar (24) inserted and matched with the second connection part.

7. The prefabricated rural housing system according to claim 6, wherein The first connecting part is a plurality of longitudinally distributed holes (211) preset inside the precast wall panel, which are arrayed and penetrate through the bottom and top of the precast wall panel. The second connecting part is a plurality of longitudinally distributed through holes (221) preset at the edge of the horizontal precast slab. When the bottom of the precast wall panel is vertically assembled onto the horizontal precast slab, the second steel bars (24) passing through the longitudinally distributed through holes (221) are inserted into the longitudinally distributed holes (211) of the precast wall panel one by one, and the upper ends of the second steel bars (24) form a lap joint with the lower ends of the first steel bars (23) inserted into the longitudinally distributed holes (211). The upper ends of the first steel bars (23) extend out from the top of the precast wall panel to be inserted into the longitudinally distributed through holes (221) of the horizontal precast slab.

8. The prefabricated rural housing system according to claim 1, characterized in that, Two adjacent vertically arranged first precast members (21) are butted to form a corner area (214). The two ends of the first precast member (21) are provided with splicing step surfaces (212) that penetrate through the precast wall panel up and down. Each splicing step surface (212) is provided with a plurality of arrayed strengthening members (213) along the longitudinal direction. The strengthening members (213) of two adjacent first precast members (21) are vertically staggered in the corner area (214). A corner steel bar (25) is inserted into the corner area (214). After the corner steel bar (25) is inserted into the strengthening members (213), concrete is poured to form a vertical joint.

9. The prefabricated rural housing system according to claim 1, wherein Two adjacent second precast members (22) are spliced with each other on the same horizontal plane to form a horizontal joint.

10. A design method for an assembled rural housing system, characterized in that, It includes the prefabricated rural housing system according to any one of claims 1-9, and the design steps are as follows: (1) According to the base area of the target site, the total building area of the target site, the building height, the number of floors and the preliminary requirements of the customer, determine the building appearance model, the floors of the house and the room layout. Among them, the room layout includes the house main body (20) and the functional prefabricated module (10), and the functional prefabricated module (10) is installed in the predefined assembly area of the first precast member (21) according to the design requirements. (2) According to the road transportation size standard, adjust the standard sizes of the first precast member (21), the second precast member (22) and the functional prefabricated module (10), and adjust the position of the functional prefabricated module (10) in the house main body (20) according to the design requirements to establish a prefabricated rural housing assembly model. (3) Establish a building structure calculation model, calculate the structural strength of the house and count the engineering quantity of materials. (4) Introduce cost parameters to obtain the corresponding construction cost; introduce construction and installation parameters to obtain the corresponding construction period required. (5) Send the design scheme output in step (4) to the customer. If the customer agrees, output the final rural housing design scheme. If the customer does not agree, return to step (1).

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