Modular building system

Abstract

The invention provides a modular building system. The modular building system comprises a plurality of steel structure modules which are arranged and connected in an array mode. The steel structure module is of a cuboid structure and comprises a plurality of vertically-arranged slidable steel columns and a plurality of corner fittings, the corner fittings are arranged at the vertex angle positions of the steel structure module correspondingly, and the slidable steel columns are connected with the corner fittings correspondingly. The H-shaped module inner steel beams are parallel to the horizontal plane, and one ends of the H-shaped module inner steel beams are connected with the corner fittings; the H-shaped module further comprises a sliding roller set, the sliding roller set is connected with the slidable steel columns, and when the sliding roller set slides in the extending direction of the steel beams in the H-shaped module, the slidable steel columns can be driven to move. The modular building system comprises the sliding roller sets, the sliding roller sets are used for driving the steel columns to move so that the interior of the building space can be transformed according to actual requirements, flexible adjustment of the large-span space is achieved, the transformation mode is simple and convenient, and applicability is high.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and more specifically to a modular building system. Background Technology

[0002] In recent years, with the continuous advancement of industrialized construction and the concept of sustainable development, modular construction, as an efficient and environmentally friendly building form, has gradually received widespread attention. Modular construction divides a building into multiple prefabricated modules, which are manufactured and processed in a factory and then transported to the construction site for rapid assembly. This greatly shortens the construction cycle, reduces the environmental impact of on-site construction, and improves the controllability of building quality.

[0003] In modular construction, steel structures have become one of the main structural forms due to their high strength, good ductility, and recyclability. However, traditional modular steel structure buildings still face some challenges in practical applications. On the one hand, the connection methods between modules are usually quite complex, requiring highly skilled labor and a large on-site operating space. This not only increases construction difficulty and cost but also limits the widespread application of modular buildings. On the other hand, existing connection technologies often fail to meet the needs of the variability of the building's interior space. Once the modules are installed, the internal spatial layout is difficult to adjust flexibly and cannot adapt to changes in different functions. Therefore, with the increasing complexity and diversity of building functions, modular buildings need to have greater flexibility and variability to adapt to different usage scenarios and functional requirements. For example, in some commercial or public buildings, it may be necessary to quickly modify the interior space according to actual needs to achieve flexible adjustments to large-span spaces. However, existing modular steel structure connection technologies still have significant limitations in achieving this spatial variability. Summary of the Invention

[0004] This invention provides a modular building system designed to address the problem that existing modular buildings are difficult to flexibly adapt to different spaces.

[0005] This invention provides a modular building system, comprising multiple steel structure modules arranged and connected in an array; each steel structure module is a cuboid structure, and includes multiple vertically arranged sliding steel columns and multiple corner pieces, with the corner pieces respectively located at the top corner of the steel structure module, and the multiple sliding steel columns respectively connected to the multiple corner pieces; The steel structure module also includes steel beams inside the H-shaped module. The steel beams inside the H-shaped module are arranged parallel to the horizontal plane, and one end of the steel beams inside the H-shaped module is connected to the corner piece. The steel structure module also includes a sliding roller assembly, which is connected to the slidable steel column. When the sliding roller assembly slides along the extension direction of the steel beam inside the H-shaped module, it can drive the slidable steel column to move.

[0006] In some possible embodiments, the steel beam inside the H-shaped module includes a first H-shaped side and a second H-shaped side arranged opposite to each other, both of which are arranged parallel to the horizontal plane, with the first H-shaped side positioned above the second H-shaped side. The steel structure module also includes a baffle, which is perpendicular to the horizontal plane, and the bottom edge of the baffle is connected to the second H-shaped side to make the baffle perpendicular to the second H-shaped side.

[0007] In some possible embodiments, the sliding roller assembly includes a pulley and a linkage assembly. The pulley is disposed in the receiving space formed by the second H-shaped side and the baffle. The linkage assembly is connected to the pulley and the slidable steel column respectively. When the pulley slides, it can drive the linkage assembly to move, so as to drive the slidable steel column to move using the linkage assembly.

[0008] In some possible embodiments, the linkage assembly includes a first link, a second link, and a third link. One end of the first link is connected to the pulley, and the other end of the first link is connected to the second link. One end of the third link is connected to the slidable steel column, and the other end of the third link is connected to the second link. The second link, the steel beam inside the H-shaped module, and the slidable steel column form a triangular structure. When the pulley slides, it can drive the first connecting rod to move. The first connecting rod can drive the second connecting rod to move. When the second connecting rod moves, it can drive the third connecting rod to move. The third connecting rod can drive the sliding steel column to move.

[0009] In some possible embodiments, the baffle includes a first baffle and a second baffle, the first baffle and the second baffle being respectively disposed on the front and rear sides of the vertical sidewall of the steel beam inside the H-shaped module; The sliding roller assembly includes a first sliding roller assembly and a second sliding roller assembly. The first sliding roller assembly is disposed between the first baffle and the vertical sidewall of the steel beam inside the H-shaped module, and the second sliding roller assembly is disposed between the second baffle and the vertical sidewall of the steel beam inside the H-shaped module.

[0010] In some possible embodiments, the steel structure module further includes an H-shaped cantilever beam, which is arranged parallel to the horizontal direction. The end of the H-shaped cantilever beam is connected to the corner piece to arrange the slidable steel column perpendicular to the H-shaped cantilever beam. The steel beams inside the H-shaped module and the arms of the H-shaped cantilever beam are respectively arranged on the opposite sides of the corner piece.

[0011] In some possible embodiments, the steel structure module further includes a sliding connecting sleeve that is slidably connected to the H-shaped cantilever beam. Two H-shaped cantilever beams on two adjacent steel structure modules are connected through the sliding connecting sleeve to connect the two steel structure modules.

[0012] In some possible embodiments, a first bolt group hole including a plurality of first bolt holes is formed on the end of the H-shaped cantilever arm away from the corner piece, and a second bolt group hole matching the first bolt group hole is formed on the sliding connecting sleeve, the second bolt group hole including a plurality of second bolt holes; Bolts are used to pass through the first bolt hole and the second bolt hole to fix the H-shaped cantilever beam of the steel structure module to the sliding connection sleeve.

[0013] In some possible embodiments, the sliding connecting sleeve has an I-shaped structure, the top of the H-shaped cantilever arm is embedded in the top of the sliding connecting sleeve and fixedly connected by bolts, the bottom of the H-shaped cantilever arm is embedded in the bottom of the sliding connecting sleeve and fixedly connected by bolts; the vertical sidewall of the H-shaped cantilever arm is arranged parallel to the vertical sidewall of the sliding connecting sleeve and fixedly connected by bolts.

[0014] In some possible embodiments, both the first bolt hole and the second bolt hole are oblong holes.

[0015] This invention provides a modular building system comprising multiple steel structure modules arranged in an array and connected together. Each steel structure module is a cuboid structure, including multiple vertically arranged sliding steel columns and multiple corner pieces. The corner pieces are respectively located at the top corners of the steel structure module, and the sliding steel columns are connected to the corner pieces. It also includes H-shaped internal steel beams, which are parallel to the horizontal plane, with one end connected to the corner pieces. Furthermore, it includes a sliding roller assembly connected to the sliding steel columns. When the sliding roller assembly slides along the extension direction of the steel beams within the H-shaped module, it can move the sliding steel columns. The modular building system provided by this invention includes a sliding roller assembly, which drives the steel columns to move, allowing for the modification of the building space according to actual needs. This enables flexible adjustment of large-span spaces, with a simple and convenient modification method and strong applicability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an embodiment of the modular building system provided by the present invention; Figure 2 This is an enlarged schematic diagram of an embodiment of the modular building system provided in this invention; Figure 3 This is a schematic diagram of an embodiment of the sliding connecting sleeve provided in this invention; Figure 4 This is a schematic diagram of an embodiment of the sliding connecting sleeve connecting H-shaped cantilever beam provided in this invention; Figure 5 This is an enlarged schematic diagram of the corner piece structure provided in an embodiment of the present invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, 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. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 "under" the second feature includes the first feature 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.

[0022] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0023] Figure 1 This is an architectural diagram of an embodiment of the modular building system provided by the present invention. Figure 2 This is an enlarged schematic diagram of the modular building system provided by the present invention; the modular building system provided by the present invention will be described in detail below with reference to the accompanying drawings: Please refer to Figure 1The modular building system provided by this invention includes multiple arrayed steel structure modules, for example, some steel structure modules are horizontally connected sequentially, and other steel structure modules are stacked. The steel structure module in this invention is generally a cuboid structure. Taking one steel structure module as an example, it can include multiple vertically arranged sliding steel columns 3 and multiple corner pieces 1. The corner pieces 1 are respectively located at the top corners of the steel structure module, and the multiple sliding steel columns are respectively connected to the multiple corner pieces. Specifically, one steel structure module can include four parallel sliding steel columns 3 and eight corner pieces 1, with the eight corner pieces 1 respectively located at the eight top corners of the steel structure module. The two ends of one sliding steel column 3 are respectively connected to two corner pieces 1, and the ends of the four sliding steel columns are respectively connected to the eight corner pieces 1.

[0024] The steel structure module provided by this invention also includes an H-shaped cantilever beam 4, which is arranged parallel to the horizontal direction, and the end of the H-shaped cantilever beam 4 is connected to a corner piece to perpendicularly connect the slidable steel column 3 to the H-shaped cantilever beam. The steel structure module also includes a sliding connecting sleeve 5, which is slidably connected to the H-shaped cantilever beam. Taking an adjacent first steel structure module and a second steel structure module as an example, the H-shaped cantilever beam of the first steel structure module extends to the right, and the H-shaped cantilever beam of the second steel structure module extends to the left; the sliding connecting sleeve 5 connects the H-shaped cantilever beams of the first steel structure module and the second steel structure module respectively, thereby connecting the first steel structure module and the second steel structure module.

[0025] like Figure 3 The diagram shown is a structural schematic of an embodiment of the sliding connecting sleeve provided in this invention. Figure 4This is a schematic diagram of an embodiment of the sliding connecting sleeve connecting an H-shaped cantilever beam according to an embodiment of the present invention. The sliding connecting sleeve in this invention has an overall I-shaped structure (or H-shaped structure), and the top and bottom of the sliding connecting sleeve 5 respectively form receiving spaces. The top of the H-shaped cantilever beam 4 is embedded in the top of the sliding connecting sleeve 5, and the bottom of the H-shaped cantilever beam 4 is embedded in the bottom of the sliding connecting sleeve 5. The vertical sidewalls of the H-shaped cantilever beam are parallel to the vertical sidewalls of the sliding connecting sleeve 5. For the H-shaped cantilever beams 4 corresponding to two adjacent steel structure modules, the two H-shaped cantilever beams are embedded into the sliding connecting sleeve 5 from the left and right sides respectively, thereby connecting the two H-shaped cantilever beams using the sliding connecting sleeve 5. Meanwhile, to ensure the stability of the connection between the H-shaped cantilever beam 4 and the sliding connecting sleeve 5, a first bolt group hole, including multiple first bolt holes, is formed at the end of the H-shaped cantilever beam 4 away from the corner piece 1. A second bolt group hole, matching the first bolt group hole, is also formed on the sliding connecting sleeve 5. The second bolt group hole also includes multiple second bolt holes. The multiple first bolt holes are evenly distributed on the H-shaped side and vertical sidewall of the H-shaped cantilever beam, and the multiple second bolt holes are also evenly distributed on the top, bottom, and vertical sidewall of the sliding connecting sleeve. When the H-shaped cantilever beam 4 is inserted into the sliding connecting sleeve 5, the first bolt holes on the H-shaped cantilever beam 4 are aligned with the second bolt holes on the sliding connecting sleeve 5. Then, bolts are used to pass through the first and second bolt holes, thereby fixing the H-shaped cantilever beam 4 of the steel structure module to the sliding connecting sleeve 5. In this invention, some bolts can penetrate the top of the H-shaped cantilever beam 4 and the top of the sliding connecting sleeve 5 to fix their tops together, and some bolts can penetrate the bottom of the H-shaped cantilever beam 4 and the bottom of the sliding connecting sleeve 5 to fix their bottoms together. Similarly, some bolts can penetrate the vertical sidewalls of the H-shaped cantilever beam 4 and the sliding connecting sleeve 5 to fix their vertical sidewalls together. In this embodiment of the invention, matching first bolt holes and second bolt holes are provided on the top, bottom, and vertical sidewalls of the H-shaped cantilever beam 4 and the sliding connecting sleeve 5. The bolt holes on the top / bottom of the H-shaped cantilever beam 4 and the sliding connecting sleeve 5 are mainly used to transmit shear force, and the bolt holes on the vertical sidewalls of the H-shaped cantilever beam 4 and the sliding connecting sleeve 5 are mainly used to transmit bending moment. By setting matching first and second bolt holes at different locations, the stability of the connection between the H-shaped cantilever beam 4 and the sliding connecting sleeve 5 is improved, thereby ensuring the structural stability of the entire modular building system.

[0026] It should be noted that the horizontal length of the sliding connecting sleeve 5 is not less than the distance between the two farthest second bolt holes on two adjacent H-shaped cantilever beams. This ensures that each second bolt hole on the H-shaped cantilever beam has a corresponding first bolt hole. Furthermore, the length of the H-shaped cantilever beam embedded in the sliding connecting sleeve 5 can be adjusted according to actual needs, thereby adjusting the distance between adjacent steel structure modules. In this invention, both the first and second bolt holes are elongated oval holes. Compared to traditional round holes, elongated oval holes are more suitable for construction scenarios because their major axis provides additional adjustment space (depending on the hole length), which can accommodate bolt misalignment issues caused by welding deformation, processing errors, etc., during steel structure module installation. They can also transfer the shear force borne by the web and the bending moment borne by the flange, forming a fully shear-resistant composite beam between adjacent cantilever beam modules, avoiding stress loss and providing overall structural stability.

[0027] Please refer to Figure 5 This is an enlarged schematic diagram of the corner fitting structure provided in an embodiment of the present invention. The steel structure module provided by the present invention also includes a steel beam 2 inside an H-shaped module. The steel beam 2 inside the H-shaped module is arranged parallel to the horizontal plane, and one end of the steel beam 2 inside the H-shaped module is connected to the corner fitting 1. The steel beam 2 inside the H-shaped module and the H-shaped cantilever beam 4 are respectively arranged on opposite sides of the corner fitting 1 and are both connected to the corner fitting 1. The steel beam 2 inside the H-shaped module and the H-shaped cantilever beam 4 are formed by hot rolling or welding and are welded to the corner fitting 1 during factory prefabrication. The steel beam 2 inside the H-shaped module includes a first H-shaped side and a second H-shaped side arranged opposite to each other. Both the first H-shaped side and the second H-shaped side are arranged parallel to the horizontal plane, and the first H-shaped side is located above the second H-shaped side. The steel structure module provided by the present invention also includes a baffle 9. The baffle 9 is arranged perpendicular to the horizontal plane, and the bottom edge of the baffle 9 is connected to the second H-shaped side to make the baffle 9 perpendicular to the second H-shaped side. The baffle 9 and the steel beam 2 inside the H-shaped module form an unclosed receiving space. The steel structure module also includes a sliding roller assembly 8, which is set in the receiving space formed by the second H-shaped side and the baffle 9. The sliding roller assembly 8 can slide along the extension direction of the steel beam inside the H-shaped module.

[0028] exist Figure 5In the illustrated embodiment, the sliding roller assembly 8 includes a pulley and a linkage assembly. The pulley is positioned within the receiving space formed by the second H-shaped side and the baffle 9, while the linkage assembly is connected to both the pulley and the slidable steel column 3. When the pulley slides, it can move the linkage assembly connected to it, thereby moving the slidable steel column. The sliding steel column 3 allows the two steel structure modules to be connected, creating a larger space suitable for the flexible space requirements of commercial and public buildings. More specifically, the linkage assembly may include a first link, a second link, and a third link. One end of the first link is connected to the pulley, and the other end is connected to the second link. One end of the third link is connected to the slidable steel column 3, and the other end is connected to the second link. In this case, the second link, the steel beam 2 within the H-shaped module, and the slidable steel column 3 form a triangular structure, with the second link being the hypotenuse of the triangular structure. When the sliding column slides along the extension line of the steel beam 2 within the H-shaped module, it can move the first connecting rod connected to it, which in turn can move the second connecting rod; when the second connecting rod moves, it can move the third connecting rod, and finally, the third connecting rod can move the sliding steel column 3. It should be noted that when the sliding steel column 3 does not need to be moved, it is embedded in the corner piece 1 to ensure structural stability; however, when the sliding steel column 3 needs to be moved to achieve spatial connection, it needs to be moved out of the corner piece 1, and then the sliding steel column 3 can be moved under the action of the pulley and connecting rod assembly.

[0029] In some embodiments, the baffle may include a first baffle and a second baffle, which are respectively disposed on the front and rear sides of the vertical sidewall of the steel beam 2 inside the H-shaped module; and the sliding roller assembly 8 includes a first sliding roller assembly and a second sliding roller assembly, the first sliding roller assembly being disposed between the first baffle and the vertical sidewall of the steel beam inside the H-shaped module, and the second sliding roller assembly being disposed between the second baffle and the vertical sidewall of the steel beam inside the H-shaped module. Both the first and second sliding roller assemblies are connected to the same slidable steel column 3, so that the slidable steel column 3 can be moved simultaneously using both the first and second sliding roller assemblies, thereby reducing the power required by a single sliding roller assembly.

[0030] When the structure requires column removal to create a larger space, the sliding connecting sleeve 5 can be slid to the designated position of the H-shaped cantilever beam of the adjacent steel structure module, and the bolts at the corresponding positions can be tightened to connect the H-shaped cantilever beams of the two adjacent steel structure modules. Simultaneously, the slidable steel column 3 between the two adjacent steel structure modules can be removed, allowing the spaces of the two adjacent steel structure modules to be connected to form a larger space. For this invention, by setting the sliding connecting sleeve 5 and the sliding roller assembly 8, the modular building's assembly and disassembly design can be realized, quickly completing structural expansion, scale reduction, and cross-space transformation. It is suitable for the spatial flexibility requirements of commercial and public buildings, and has high efficiency and sustainability. The modular building system provided by this invention solves the problem that existing modular steel structures cannot flexibly adjust the internal space; moreover, the modular building system provided by this invention uses all bolted on-site connections, eliminating the need for welding operations, and all components are completed in the factory, which can effectively improve installation efficiency and installation quality.

[0031] In the aforementioned embodiment, the H-shaped cantilever beams of two adjacent steel structure modules are connected by the sliding connecting sleeve 5. Therefore, for multiple steel structure modules in a modular building system, except for the steel structure module located at the outermost edge, the left and right sides of other steel structure modules usually need to be provided with outward-extending H-shaped cantilever beams to connect with the H-shaped cantilever beams of other adjacent steel structure modules.

[0032] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0033] The modular building system provided by the embodiments of the present invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of the present invention. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular building system, characterized in that, The system includes multiple steel structure modules arranged in an array and connected together. Each steel structure module is a cuboid structure and includes multiple vertically arranged sliding steel columns and multiple corner pieces. The multiple corner pieces are respectively located at the top corners of the steel structure module, and the multiple sliding steel columns are respectively connected to the multiple corner pieces. The steel structure module also includes steel beams inside the H-shaped module. The steel beams inside the H-shaped module are arranged parallel to the horizontal plane, and one end of the steel beams inside the H-shaped module is connected to the corner piece. The steel structure module also includes a sliding roller assembly, which is connected to the slidable steel column. When the sliding roller assembly slides along the extension direction of the steel beam inside the H-shaped module, it can drive the slidable steel column to move.

2. The modular building system according to claim 1, characterized in that, The steel beam inside the H-shaped module includes a first H-shaped side and a second H-shaped side arranged opposite to each other. Both the first H-shaped side and the second H-shaped side are arranged parallel to the horizontal plane, and the first H-shaped side is arranged above the second H-shaped side. The steel structure module also includes a baffle, which is perpendicular to the horizontal plane, and the bottom edge of the baffle is connected to the second H-shaped side to make the baffle perpendicular to the second H-shaped side.

3. The modular building system according to claim 2, characterized in that, The sliding roller assembly includes a pulley and a connecting rod assembly. The pulley is disposed in the receiving space formed by the second H-shaped side and the baffle. The connecting rod assembly is connected to the pulley and the slidable steel column respectively. When the pulley slides, it can drive the connecting rod assembly to move, so as to drive the slidable steel column to move using the connecting rod assembly.

4. The modular building system according to claim 3, characterized in that, The linkage assembly includes a first linkage, a second linkage, and a third linkage. One end of the first linkage is connected to the pulley, and the other end of the first linkage is connected to the second linkage. One end of the third linkage is connected to the slidable steel column, and the other end of the third linkage is connected to the second linkage. The second linkage, the steel beam inside the H-shaped module, and the slidable steel column form a triangular structure. When the pulley slides, it can drive the first connecting rod to move. The first connecting rod can drive the second connecting rod to move. When the second connecting rod moves, it can drive the third connecting rod to move. The third connecting rod can drive the sliding steel column to move.

5. The modular building system according to claim 2, characterized in that, The baffle includes a first baffle and a second baffle, which are respectively disposed on the front and rear sides of the vertical sidewall of the steel beam inside the H-shaped module; The sliding roller assembly includes a first sliding roller assembly and a second sliding roller assembly. The first sliding roller assembly is disposed between the first baffle and the vertical sidewall of the steel beam inside the H-shaped module, and the second sliding roller assembly is disposed between the second baffle and the vertical sidewall of the steel beam inside the H-shaped module.

6. The modular building system according to claim 1, characterized in that, The steel structure module also includes an H-shaped cantilever beam, which is arranged parallel to the horizontal direction. The end of the H-shaped cantilever beam is connected to the corner piece to arrange the sliding steel column perpendicular to the H-shaped cantilever beam. The steel beams inside the H-shaped module and the arms of the H-shaped cantilever beam are respectively arranged on the opposite sides of the corner piece.

7. The modular building system according to claim 6, characterized in that, The steel structure module also includes a sliding connecting sleeve, which is slidably connected to the H-shaped cantilever beam. The two H-shaped cantilever beams on two adjacent steel structure modules are connected through the sliding connecting sleeve to connect the two steel structure modules.

8. The modular building system according to claim 7, characterized in that, The H-shaped cantilever arm away from the corner piece has a first bolt group hole including multiple first bolt holes on its end, and the sliding connecting sleeve has a second bolt group hole matching the first bolt group hole, the second bolt group hole including multiple second bolt holes; Bolts are used to pass through the first bolt hole and the second bolt hole to fix the H-shaped cantilever beam of the steel structure module to the sliding connection sleeve.

9. The modular building system according to claim 8, characterized in that, The sliding connecting sleeve has an I-shaped structure. The top of the H-shaped cantilever arm is embedded in the top of the sliding connecting sleeve and fixedly connected by bolts. The bottom of the H-shaped cantilever arm is embedded in the bottom of the sliding connecting sleeve and fixedly connected by bolts. The vertical sidewall of the H-shaped cantilever arm is parallel to the vertical sidewall of the sliding connecting sleeve and fixedly connected by bolts.

10. The modular building system according to claim 8, characterized in that, Both the first bolt hole and the second bolt hole are oblong holes.

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