A prefabricated building module

Abstract

The utility model relates to prefabricated building technical field especially relates to a prefabricated building module. The utility model discloses prefabricated outer wall, the opposite side wall of two stand column, the bottom wall of roof beam and the top wall of bottom beam all fixedly installed with connecting rod, and four connecting rods enclose rectangular frame, and prefabricated outer wall includes wallboard, installs the locating assembly and a plurality of fasteners in wallboard, and the locating assembly is rectangular frame, and the four -around outer wall of locating assembly all recesses inwards, and a plurality of fasteners pass through the outer wall of wallboard, locating assembly and four connecting rods. The utility model discloses through setting up connecting rod, and setting up with the locating assembly of matched plug connection, has realized the quick accurate positioning of outer wallboard, and then through a plurality of fasteners and penetrate wallboard, locating assembly and connecting rod and fix, can install prefabricated outer wall in rectangular outer wall area, greatly reduces the construction difficulty, shortens the installation time, and improved the on -the -spot construction assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a prefabricated building module. Background Technology

[0002] Modular steel structure buildings, as an important development direction of current building industrialization, have the core advantage of achieving standardized integration in the factory and efficient assembly on-site. Traditional modular steel structure buildings are usually assembled by stacking them vertically, resulting in redundant structural components such as "double columns, double beams, and double slabs" between adjacent modules. Compared with traditional steel structure frames, this stacking method not only introduces a large number of components with low load-bearing efficiency, resulting in a significant increase in steel consumption, but also reduces the effective utilization rate of building space.

[0003] To overcome the aforementioned problems, the staggered stacking modular structure system has emerged. This system arranges modular units at intervals within the same floor and implements staggered connections between adjacent floors, making the overall structural layout closer to the traditional steel structure system, while still meeting the requirements of modular buildings in terms of factory prefabrication and rapid on-site assembly.

[0004] Because the modular units are arranged at intervals on the plane, open non-modular areas are naturally formed between them. The enclosure structure of these areas (especially the exterior walls) needs to be installed on the existing modular foundation, so the integrated design of its components must fully consider the installation conditions and boundary constraints provided by the modular units.

[0005] In existing technologies, prefabricated exterior walls applied to non-module areas of staggered stacked modular structures typically use bolts to fasten embedded parts or pre-drilled holes on the exterior wall panels to corresponding connecting components on the steel structure modules for installation and fixation. During installation, measurement and positioning are required before bolt tightening to ensure installation accuracy. However, if the tightening path deviates during bolt connection, it can easily lead to deviations in the installation position of the exterior wall panels, affecting the overall flatness and verticality of the exterior wall, and reducing the assembly accuracy and construction quality of the prefabricated exterior wall. Once errors occur, rework and adjustments are often required, increasing construction difficulty and reducing installation efficiency.

[0006] Therefore, there is an urgent need to provide a prefabricated exterior wall structure with high installation accuracy, convenient operation and high construction efficiency, so as to improve the overall performance and construction efficiency of prefabricated exterior wall assembly in staggered stacked module structures. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a prefabricated building module, which solves the technical problems of low installation accuracy and low construction efficiency of prefabricated exterior walls when bolts are used to install prefabricated exterior walls in a staggered stacked module structure.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0011] This utility model provides a prefabricated building module, including an interlaced stacked structure composed of a first module, a second module, a third module, and a fourth module. The first and second modules have horizontally opposite columns that, together with the bottom beam of the upper third module and the top beam of the lower fourth module, form a rectangular outer wall area. The module also includes a prefabricated outer wall. Connecting rods are fixedly installed on the opposite sidewalls of the two columns, the bottom wall of the top beam, and the top wall of the bottom beam, with four connecting rods forming a rectangular frame. The prefabricated outer wall includes a wall panel, a positioning component installed within the wall panel, and multiple fasteners. The positioning component is a rectangular frame, and its four outer walls are recessed inwards to position and insert into the four connecting rods one-to-one. The multiple fasteners pass through the outer wall of the wall panel, the positioning component, and the four connecting rods to fix the wall panel within the rectangular outer wall area.

[0012] Preferably, the positioning assembly includes a keel and four positioning members; the keel and the four positioning members are all fixedly installed inside the wall panel, the four positioning members are respectively installed on the four outer walls of the keel, and the four positioning members are connected end to end to form the rectangular frame, the outer walls of the four positioning members are all recessed inward to be inserted into the four connecting rods one by one; a plurality of fasteners pass through the wall panel, the four positioning members and the four connecting rods to fix the wall panel in the rectangular outer wall area.

[0013] Preferably, the connecting rod is a rectangular square tube, and the positioning element is a concave square tube.

[0014] Preferably, the outer walls of the positioning member are spaced apart from the top beam, the bottom beam, and the two columns.

[0015] Preferably, the positioning component further includes a rubber pad; when the connecting rod is inserted into the positioning member, an installation gap is provided between the connecting rod and the positioning member, and the rubber pad is placed in the installation gap for shock absorption; multiple fasteners pass through the wall panel, the positioning member, the rubber pad, and the connecting rod.

[0016] Preferably, the prefabricated exterior wall further includes a flow guide bend; the top wall and the outward-facing outer wall of the bottom beam are provided with through holes, the flow guide bend is placed inside the bottom beam, and the two ends of the flow guide bend are respectively connected to the two through holes for guiding the flow of water accumulated in the water-using room.

[0017] Preferably, the wall panel includes an outer wall panel and an inner wall panel; the positioning component is installed between the outer wall panel and the inner wall panel, and the fastener passes through the outer wall panel, the positioning component, and the connecting rod; the outer walls of the outer wall panel are respectively connected to the top beam, the bottom beam, and the two columns by weather-resistant sealant to seal the gap between the staggered stacked structure and the outer wall panel.

[0018] Preferably, the prefabricated exterior wall further includes PE rods; the fourth module further includes a floor slab, the ends of which are connected to the top beam and the bottom outer wall of the interior wall panel respectively; the bottom of the interior wall panel and the top beam are provided with a drainage joint in the vertical direction, the PE rod is placed in the drainage joint, the two side walls of the PE rod are respectively attached to the positioning component and the floor slab, and the PE rod is connected to the bottom of the interior wall panel by the weather-resistant sealant to seal the drainage joint.

[0019] Preferably, the fastener is a machine-made screw.

[0020] Preferably, the positioning assembly further includes a plurality of nails; the two horizontally arranged positioning members are respectively fixedly installed on the top and bottom of the keel by the plurality of nails.

[0021] (III) Beneficial Effects

[0022] The beneficial effects of this utility model are:

[0023] This invention achieves rapid and accurate positioning of the exterior wall panel by installing connecting rods on two columns, a top beam, and a bottom beam, and integrating matching positioning components inside the wall panel. Specifically, after inserting the positioning components into the connecting rods, multiple fasteners penetrate the wall panel, positioning components, and connecting rods for fixation, thus securing the prefabricated exterior wall within the rectangular exterior wall area. This eliminates the need for repeated measurements and adjustments, significantly reducing construction difficulty, shortening installation time, and improving on-site assembly efficiency. Compared to traditional bolt connections that rely on manual measurement and adjustment, this invention achieves positioning and insertion through the insertion structure between the positioning components and connecting rods, effectively avoiding installation deviations caused by fastening path offsets. This significantly improves the installation accuracy, flatness, and verticality of the prefabricated exterior wall, ensuring its construction quality. Furthermore, the positioning components adopt a rectangular frame structure and form a stable insertion structure with the four connecting rods, ensuring installation positioning accuracy while also improving the connection rigidity between the prefabricated exterior wall and the first, second, third, and fourth modules. Attached Figure Description

[0024] Figure 1 This is a front view structural diagram of a prefabricated building module of this utility model before installation;

[0025] Figure 2 This is a top sectional view of the prefabricated building module after installation according to this utility model.

[0026] Figure 3 This is a side sectional view of a prefabricated building module after installation according to this utility model.

[0027] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0028] Figure 5 This is a three-dimensional structural diagram of a prefabricated exterior wall of a prefabricated building module according to the present invention.

[0029] Figure 6 This is a three-dimensional structural diagram of the disassembled exterior wall panel of a prefabricated building module according to the present invention.

[0030] [Explanation of Labels in the Attached Image]

[0031] 1: Module 1; 11: Column; 2: Module 2; 3: Module 3; 31: Bottom beam; 4: Module 4; 41: Top beam; 42: Floor slab; 5: Rectangular exterior wall area; 6: Connecting rod; 7: Prefabricated exterior wall; 71: Wall panel; 711: Exterior wall panel; 712: Interior wall panel; 72: Positioning component; 721: Keel; 7211: Steel tube; 7212: Insulation board; 722: Positioning component; 73: Fastener; 74: Rubber pad; 75: Nail; 8: Guide bend; 9: Weather-resistant sealant; 10: PE rod. Detailed Implementation

[0032] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0033] Example 1

[0034] like Figure 1 As shown, a prefabricated building module of this embodiment includes an interleaved stacked structure composed of a first module 1, a second module 2, a third module 3, and a fourth module 4. The horizontally opposite columns 11 in the first module 1 and the second module 2, together with the bottom beam 31 in the upper third module 3 and the top beam 41 in the lower fourth module 4, form a rectangular outer wall area 5. The module also includes a prefabricated outer wall 7. The prefabricated outer wall is prefabricated in a factory.

[0035] Specifically, such as Figure 2 and Figure 3As shown, connecting rods 6 are fixedly installed on the opposite side walls of the two columns 11, the bottom wall of the top beam 41, and the top wall of the bottom beam 31, and the four connecting rods 6 form a rectangular frame. The prefabricated exterior wall 7 includes a wall panel 71, a positioning component 72 installed in the wall panel 71, and multiple fasteners 73. The positioning component 72 is a rectangular frame, and its four outer walls are recessed inward to position and insert into the four connecting rods 6 one-to-one. The multiple fasteners 73 pass through the outer wall of the wall panel 71, the positioning component 72, and the four connecting rods 6 to fix the wall panel 71 in place within the rectangular exterior wall area 5. By installing connecting rods 6 on the two columns 11, the top beam 41, and the bottom beam 31, and integrating matching positioning components 72 inside the wall panel 71, the rapid and accurate positioning of the exterior wall panel 711 is achieved. Specifically, after simply inserting the positioning component 72 into the connecting rod 6, and then fixing it with multiple fasteners 73 penetrating the wall panel 71, positioning component 72, and connecting rod 6, the prefabricated exterior wall 7 can be fixedly installed within the rectangular exterior wall area 5. This eliminates the need for repeated measurements and adjustments, significantly reducing construction difficulty, shortening installation time, and improving on-site assembly efficiency. Compared to traditional bolt connections that rely on manual measurement and adjustment, this invention achieves positioning and insertion through the insertion structure between the positioning component 72 and the connecting rod 6, effectively avoiding installation deviations caused by fastening path offsets. This significantly improves the installation accuracy, flatness, and verticality of the prefabricated exterior wall 7, ensuring the construction quality of the prefabricated exterior wall 7. Moreover, the positioning component 72 adopts a rectangular frame structure and forms a stable plug-in structure with the four-sided connecting rods 6. While ensuring the installation positioning accuracy, it also improves the connection rigidity between the prefabricated exterior wall 7 and the first module 1, the second module 2, the third module 3 and the fourth module 4.

[0036] Furthermore, such as Figure 2 , Figure 3 Figure 5 and Figure 6 As shown, the positioning component 72 includes a keel 721 and four positioning members 722. The keel 721 and the four positioning members 722 are all fixedly installed within the wall panel 71. The four positioning members 722 are respectively installed on the outer walls of the keel 721, and the four positioning members 722 are connected end-to-end to form a rectangular frame. The outer walls of the four positioning members 722 are recessed inwards to correspond one-to-one with the four connecting rods 6, thereby achieving positioning and assembly during the installation of the prefabricated exterior wall 7. During assembly, repeated on-site measurements and adjustments are unnecessary, ensuring precise alignment between the prefabricated exterior wall 7 and the first module 1, second module 2, third module 3, and fourth module 4, significantly improving installation efficiency and assembly accuracy. Multiple fasteners 73 pass through the wall panel 71, the four positioning members 722, and the four connecting rods 6 to fix the wall panel 71 within the rectangular exterior wall area 5. The keel 721 enhances the rigidity and stability of the positioning component 72.

[0037] Additionally, it should be noted that both the connecting rod 6 and the positioning component 722 are continuous structures of the same length to improve waterproofing performance, and both the connecting rod 6 and the positioning component 722 are made of steel. The side length of the positioning component 72 is consistent with the side length of the wall panel 71 to improve the flatness of the prefabricated exterior wall 7.

[0038] Furthermore, such as Figure 4 As shown, the positioning assembly 72 also includes multiple nails 75. Two horizontally positioned positioning elements 722 are respectively fixed to the top and bottom of the keel 721 using the multiple nails 75, enabling rapid installation of the positioning elements 722 and the keel 721 and improving construction efficiency. Furthermore, the high strength of the nails 75 enhances the connection strength between the positioning elements 722 and the keel 721, improving the stability of the positioning assembly 72.

[0039] Furthermore, such as Figure 4 As shown, the connecting rod 6 is a rectangular square tube, and the positioning component 722 is a concave square tube, which reduces its own weight while ensuring strength and torsional resistance. Furthermore, the rectangular square tube form of the connecting rod 6 has high cross-sectional stiffness and load-bearing capacity, effectively transferring the load from the prefabricated exterior wall 7. The concave square tube form of the positioning component 722 can be inserted into it, ensuring initial positioning accuracy while also improving the shear and pull-out resistance of both the connecting rod 6 and the positioning component 722.

[0040] It should be noted that, as Figure 6 As shown, the keel 721 consists of two steel tubes 7211 and an insulation board 7212. The two steel tubes 7211 are horizontally and parallel to each other. Each steel tube 7211 is connected to two horizontally positioned members 722 via multiple nails 75. Furthermore, the top and bottom of the two horizontally positioned members 722 are connected to the top and bottom of the two vertically positioned members 722, forming a continuous rectangular groove to fit the rectangular frame formed by the four connecting rods 6. This allows the four positioning members 722 to be inserted into the rectangular frame formed by the four connecting rods 6 through the continuous rectangular groove. The outer walls of the insulation board 7212 are connected to the opposite side walls of the two steel tubes 7211 and the opposite side walls of the two vertically positioned members 722 to provide insulation for the interior.

[0041] Furthermore, such as Figures 2-4 As shown, the four outer walls of the positioning component 722 are spaced apart from the top beam 41, the bottom beam 31 and the two columns 11, respectively. This provides reasonable error adjustment space for the prefabricated exterior wall 7 and the first module 1, the second module 2, the third module 3 and the fourth module 4, effectively solving the docking difficulties caused by steel structure module processing errors, transportation deformation or on-site hoisting deviations, improving the overall assembly accuracy and reducing the rework rate.

[0042] Furthermore, such as Figure 4 As shown, the positioning component 72 also includes a rubber pad 74. When the connecting rod 6 is inserted into the positioning component 722, an installation seam is provided between the connecting rod 6 and the positioning component 722. The rubber pad 74 is placed in the installation seam for shock absorption, enabling the rubber pad 74 to absorb displacement caused by structural deformation. Furthermore, it effectively improves the energy absorption and dissipation capacity of the prefabricated exterior wall 7 under dynamic loads such as earthquakes and wind loads, reducing the risk of damage from rigid structural impacts and improving the overall structural safety and stability. Additionally, when compressed, the rubber pad 74 provides a physical barrier against air and rainwater, achieving wind and rain protection. Multiple fasteners 73 pass through the wall panel 71, the positioning component 722, the rubber pad 74, and the connecting rod 6.

[0043] Furthermore, such as Figure 3 As shown, the prefabricated exterior wall 7 also includes a drainage bend 8. Through holes are provided on the top wall and outward-facing exterior wall of the bottom beam 31. The drainage bend 8 is placed inside the bottom beam 31, with its two ends connected to the two through holes respectively, for guiding water accumulation in the water-using room. When the room is a water-using room, the accumulated water can be drained through the drainage bend 8, preventing water from seeping into the fourth module 4, thereby improving the waterproofing performance of the water-using room.

[0044] Furthermore, such as Figures 2-6 As shown, the wall panel 71 includes an outer wall panel 711 and an inner wall panel 712. A positioning assembly 72 is installed between the outer wall panel 711 and the inner wall panel 712, and fasteners 73 pass through the outer wall panel 711, the positioning assembly 72, and the connecting rod 6. The outer walls of the outer wall panel 711 are connected to the top beam 41, the bottom beam 31, and the two columns 11 via weather-resistant sealant 9 to seal the gaps between the staggered stacked structure and the outer wall panel 711, effectively preventing the penetration of external rainwater, dust, and air, and improving the waterproof, seepage-proof, and airtight performance of the prefabricated outer wall 7.

[0045] Furthermore, such as Figure 4 As shown, the prefabricated exterior wall 7 also includes PE rods 10. The fourth module 4 also includes a floor slab 42, the ends of which are connected to the top beam 41 and the bottom outer wall of the inner wall panel 712, respectively. A drainage joint is provided vertically between the bottom of the inner wall panel 712 and the top beam 41. The PE rods 10 are placed within this drainage joint, with their side walls respectively attached to the positioning assembly 72 and the floor slab 42. The PE rods 10 are connected to the bottom of the inner wall panel 712 using weather-resistant sealant 9 to seal the drainage joint. When the room is a water-using room, a small amount of water will inevitably seep into the drainage joint. Therefore, by installing PE rods 10, water can be prevented from seeping into the drainage joint, further improving the waterproofing performance of the water-using room.

[0046] Furthermore, the fastener 73 is a machine-made screw, which has a more stable preload control capability, ensuring uniform force distribution between the positioning component 722, the rubber pad 74 and the connecting rod 6, thereby enhancing the reliability and durability of the overall connection.

[0047] In addition, such as Figure 2 and Figure 3 As shown, a curtain wall is connected to the outside of the exterior wall panel 711 to ensure the flatness of the prefabricated building module.

[0048] Example 2

[0049] This embodiment describes the steps for installing the prefabricated exterior wall 7 onto the rectangular exterior wall area 5:

[0050] S1: Vertically weld a continuous connecting rod 6 on the column 11 on the opposite side of the first module 1 and the second module 2; horizontally weld a continuous connecting rod 6 on the bottom beam 31 of the third module 3; and horizontally weld a regular connecting rod 6 on the top beam 41 of the fourth module 4.

[0051] S2: Stack the first module 1, the second module 2, and the fourth module 4 in an alternating manner.

[0052] S3: Connect PE rod 10 to the bottom of the inner wall panel 712 using weather-resistant sealant 9.

[0053] S4: After step S2 is completed, the prefabricated exterior wall 7 is lifted and placed in the rectangular exterior wall area 5. The prefabricated exterior wall 7 is lowered so that the grooves of the positioning parts 722 on both sides and the bottom can be inserted into the three connecting rods 6 on the two columns 11 and the top beam 41. The rubber pad 74 is placed in the installation seam between the positioning part 722 and the connecting rod 6.

[0054] S5: After step S4 is completed, multiple fasteners 73 are passed through the exterior wall panel 711, the three positioning pieces 722 that have been inserted, the three rubber pads 74 and the three connecting rods 6 to fix the prefabricated exterior wall 7 within the rectangular exterior wall area 5.

[0055] S6: Stack the third module 3 so that the connecting rod 6 on the bottom beam 31 of the third module 3 is embedded into the groove of the corresponding horizontal positioning part 722.

[0056] S7: After step S6 is completed, connect them using multiple fasteners 73 according to the operation in step S4.

[0057] S8: Install the curtain wall onto the exterior wall panel 711 to complete the installation of the staggered stacked building modules.

[0058] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0060] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0061] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A prefabricated building module, comprising an interleaved stacked structure consisting of a first module (1), a second module (2), a third module (3), and a fourth module (4), wherein horizontally opposite columns (11) in the first module (1) and the second module (2), together with the bottom beam (31) in the upper third module (3) and the top beam (41) in the lower fourth module (4), form a rectangular outer wall area (5), characterized in that, It also includes prefabricated exterior walls (7); Connecting rods (6) are fixedly installed on the opposite side walls of the two columns (11), the bottom wall of the top beam (41), and the top wall of the bottom beam (31), and the four connecting rods (6) form a rectangular frame. The prefabricated exterior wall (7) includes a wall panel (71), a positioning component (72) installed in the wall panel (71), and a plurality of fasteners (73). The positioning component (72) is a rectangular frame, and the outer walls of the positioning component (72) are recessed inward to be positioned and inserted in correspondence with the four connecting rods (6). Multiple fasteners (73) pass through the outer wall of the wall panel (71), the positioning assembly (72), and the four connecting rods (6) to secure the wall panel (71) within the rectangular outer wall area (5).

2. The prefabricated building module as described in claim 1, characterized in that: The positioning component (72) includes a keel (721) and four positioning elements (722). The keel (721) and the four positioning pieces (722) are all fixedly installed inside the wall panel (71). The four positioning pieces (722) are respectively installed on the outer walls of the keel (721), and the four positioning pieces (722) are connected end to end to form the rectangular frame. The outer walls of the four positioning pieces (722) are all recessed inward so as to be inserted into the four connecting rods (6) one by one. Multiple fasteners (73) pass through the wall panel (71), four positioning elements (722) and four connecting rods (6) to secure the wall panel (71) within the rectangular outer wall area (5).

3. The prefabricated building module as described in claim 2, characterized in that: The connecting rod (6) is a rectangular square tube, and the positioning component (722) is a concave square tube.

4. The prefabricated building module as described in claim 3, characterized in that: The outer walls of the positioning member (722) are spaced apart from the top beam (41), the bottom beam (31) and the two columns (11).

5. The prefabricated building module as described in claim 3, characterized in that: The positioning component (72) also includes a rubber pad (74). When the connecting rod (6) is inserted into the positioning member (722), an installation seam is provided between the connecting rod (6) and the positioning member (722), and the rubber pad (74) is placed in the installation seam for shock absorption; Multiple fasteners (73) pass through the wall panel (71), the positioning element (722), the rubber pad (74), and the connecting rod (6).

6. The prefabricated building module as described in claim 4, characterized in that: The prefabricated exterior wall (7) also includes a flow guide bend (8); The top wall and the outer wall of the bottom beam (31) are provided with through holes. The guide bend (8) is placed inside the bottom beam (31), and the two ends of the guide bend (8) are respectively connected to the two through holes for guiding the water accumulated in the water room.

7. The prefabricated building module as described in claim 1, characterized in that: The wall panel (71) includes an outer wall panel (711) and an inner wall panel (712); The positioning component (72) is installed between the outer wall panel (711) and the inner wall panel (712), and the fastener (73) passes through the outer wall panel (711), the positioning component (72) and the connecting rod (6). The outer walls of the outer wall panel (711) are connected to the top beam (41), the bottom beam (31) and the two columns (11) respectively by weather-resistant sealant (9) to seal the gap between the staggered stacked structure and the outer wall panel (711).

8. The prefabricated building module as described in claim 7, characterized in that: The prefabricated exterior wall (7) also includes PE rods (10); The fourth module (4) also includes a floor slab (42), the ends of which are connected to the top beam (41) and the bottom outer wall of the inner wall panel (712), respectively. The bottom of the inner wall panel (712) and the top beam (41) are provided with a water flow gap in the vertical direction. The PE rod (10) is placed in the water flow gap. The two side walls of the PE rod (10) are respectively attached to the positioning component (72) and the floor slab (42). The PE rod (10) is connected to the bottom of the inner wall panel (712) through the weather-resistant sealant (9) to seal the water flow gap.

9. The prefabricated building module as described in claim 1, characterized in that: The fastener (73) is a machine screw.

10. The prefabricated building module as described in claim 2, characterized in that: The positioning component (72) also includes a plurality of nails (75); The two horizontally positioned positioning elements (722) are respectively fixedly installed on the top and bottom of the keel (721) by a plurality of nails (75).

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