Building modules and their connection structures

Abstract

The present invention provides a building module and its connection structure. Each building module is a frame structure formed by connecting pipes, including multiple vertical pipes and horizontal pipes connecting the vertical pipes along the vertical direction. The connection structure includes a connecting cone and a bolt assembly. The connecting cone is used to connect the vertical pipes of the upper building module and the lower building module, including a cone head, a cone tail and a first bolt member connected in sequence. The bolt assembly is arranged on the vertical pipe, including a top plate and a long rod member; the top plate is recessed with a top threaded hole for the screw rod of the first bolt member to pass through, and the lower end of the long rod member has a second bolt member, which can be inserted into the cone head threaded hole to form a threaded connection. Among them, the conical design of the connecting cone can play a guiding and positioning role, so that the above-mentioned building modules can be quickly positioned to the specified position, reducing positioning errors and assembly errors, and making it difficult for the upper and lower building modules to be misaligned.

Description

Technical Field

[0001] The present invention relates to the technical field of box-type module building structures, in particular to a building module and a connection structure thereof. Background Art

[0002] Box-type modular buildings are the most prefabricated modular buildings. Not only can interior decoration be completed inside the box, but the building curtain wall can also be fully prefabricated outside the box. They can also be connected to the core tube or other traditional buildings on the project site. They have the characteristics of high prefabrication, low on-site workload, short project period and recyclability.

[0003] Currently, the main methods for connecting building modules are bolted joints and welding. Due to the drawbacks of on-site welding, such as inconsistent quality, high workload, and low efficiency, welding is generally not considered for connecting building modules in modular buildings. Therefore, bolted joints are the fastest and simplest connection method for modular buildings. Given that the top surface of the building modules is free of pre-installed objects and is accessible during installation without the need for scaffolding, the top surface of the building modules is the most suitable operating space for bolted joints connecting the upper and lower building modules.

[0004] Although it is currently possible to complete the bolt connection operation of the upper and lower building modules from the top surface of the building module, there are disadvantages such as the use of non-standard parts and the deviation of the upper and lower stacking boxes leading to failure of the bolt connection.

[0005] Specifically, the aforementioned bolt connection pair contains numerous components, and to ensure the convenience of bolt connection, internally and externally threaded bolts are used. Internally and externally threaded bolts have threads on both the inner and outer surfaces, making them non-standard bolt fasteners that must be customized. Therefore, they are not suitable for use in situations where standards and specifications are required. Furthermore, during the installation of the stacking boxes of the upper and lower building modules, an opening for bolt connection must be provided on the top surface of the lower building module, with the upper end surface of the opening flush with the top surface. When the upper building module is placed downward, the bolt fasteners of the upper building module are difficult to accurately insert into the openings. Consequently, misalignment between the upper and lower building modules can easily occur, ultimately preventing the aforementioned bolt assembly from connecting smoothly and causing the connection to fail. Summary of the Invention

[0006] The object of the present invention is to provide a connection structure for building modules, which can simultaneously meet the requirements of rapid stacking of adjacent building modules and improve the positioning and assembly accuracy during the stacking process.

[0007] The present invention also aims to provide a building module having the above connection structure and its characteristics.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A connection structure of building modules, which is used for connecting and fixing two adjacent layers of building modules, each of which is a frame structure formed by connecting pipes, including multiple vertical pipes and horizontal pipes connecting the vertical pipes; the connection structure includes: a connecting cone, which is used to connect the vertical pipes of the upper building module and the lower building module, the connecting cone includes a cone head, a cone tail and a first bolt member connected in sequence, the cone head is conical, and the cross-sectional area increases in the direction close to the cone tail, the cone head is provided with a cone head threaded hole, the cone tail has an inner cavity, the bolt head of the first bolt member is accommodated in the inner cavity, and the The screw rod of the first bolt member extends out of the inner cavity; the bolt assembly is arranged on the vertical tube, which includes a top plate protruding from the upper end of the vertical tube and a long rod member built into the vertical tube, the top plate is recessed with a top threaded hole for the screw rod of the first bolt member to pass through, the upper end surface of the top plate abuts against the bottom of the cone tail, the long rod member extends vertically and is fixedly arranged, the lower end of the long rod member is provided with a second bolt member, and a gap is provided between the second bolt member and the lower end of the vertical tube to form a docking cavity, the docking cavity is used to accommodate the cone head and the cone tail, so that the second bolt member can be correspondingly inserted into the cone head threaded hole and form a threaded connection.

[0010] According to one embodiment of the present invention, the tapered tail portion is cylindrical, and is provided with a column hole and a tapered tail threaded hole in sequence from top to bottom; the diameter of the column hole is larger than the diameter of the tapered tail threaded hole, the bolt head of the first bolt member is accommodated in the column hole, the upper end of the screw rod of the first bolt member is embedded in the tapered tail threaded hole, and the lower end of the screw rod extends downward out of the tapered tail threaded hole.

[0011] According to one embodiment of the present invention, the connecting cone also includes: a limiting member, which is built into the column hole, the limiting member is in the shape of a thin-walled cylinder, the outer peripheral edge of the limiting member is fitted and fixed to the inner peripheral wall of the column hole, the bottom surface of the cylinder of the limiting member is tightly pressed against the bolt head of the first bolt member, and the limiting member is circumferentially provided with a plurality of grooves at the upper end opening; a fastening nut, which is embedded in the limiting member, the fastening nut is in the shape of a polygonal column, each edge of the fastening nut is correspondingly clamped in each of the grooves, and the through hole of the fastening nut is connected to the threaded hole of the cone head for the second bolt member to pass through.

[0012] According to one embodiment of the present invention, the cone head portion is further provided with a guide chamfer at the upper end opening of the cone head threaded hole. The guide chamfer is conical, and the inner diameter of the guide chamfer increases in a direction away from the cone head threaded hole.

[0013] According to one embodiment of the present invention, the long rod member further includes a convex ring sleeved on the upper end of the second bolt member; the bolt assembly further includes a fixing ring, which is arranged inside the vertical tube and close to the lower end, the outer peripheral edge of the fixing ring is fixed to the inner peripheral wall of the vertical tube, and the middle part of the fixing ring is provided with a fixing hole for the second bolt member to pass through, and the diameter of the fixing hole is smaller than the diameter of the convex ring, so that the convex ring is fixed to the upper end surface of the fixing ring.

[0014] According to one embodiment of the present invention, the convex ring is provided with a stepped upper column hole and a lower column hole, and the size of the upper column hole is larger than the size of the lower column hole; the bolt head at the upper end of the second bolt member is clamped in the upper column hole, and the screw rod of the second bolt member is passed through the lower column hole.

[0015] According to one embodiment of the present invention, the long rod member also includes a main rod body; the main rod body includes an upper end plate, a lower end plate and a rod section vertically connecting the upper end plate and the lower end plate, the upper end surface of the upper end plate is recessed with a hexagonal hole, and the lower end plate is fitted and fixed with the convex ring.

[0016] According to one embodiment of the present invention, the bolt assembly further comprises a fixing rod; the fixing rod comprises a cylindrical rod body and an insertion rod extending from the lower end of the rod body, the upper end surface of the rod body is recessed with the fixing hole, the diameter of the rod body is consistent with the diameter of the top threaded hole, and the diameter of the rod body is larger than the diameter of the insertion rod, and the lower end of the insertion rod is chamfered;

[0017] The rod body extends into the interior of the vertical tube through the threaded hole, the upper end of the rod body is clamped in the threaded hole through threaded engagement, and the fixing hole is exposed on the upper end surface of the top plate, and the insertion rod is downwardly inserted into the hexagonal hole of the main rod body to limit the up and down movement of the main rod body.

[0018] According to one embodiment of the present invention, the bolt assembly further includes: a sealing plate, which is built into the vertical tube and is located close to the bottom of the top plate, the sealing plate is provided with a through hole, and the outer periphery of the sealing plate is fixedly connected to the inner periphery of the vertical tube; a nut member, which is provided with a threaded hole, the nut member is fixedly inserted into the through hole of the sealing plate, the upper end of the nut member abuts against the lower end of the top plate, and the threaded hole of the nut member is aligned with the top threaded hole for the screw rod of the first bolt member to be inserted.

[0019] According to one embodiment of the present invention, the bolt assembly also includes a base plate; the base plate protrudes downwardly from the lower end surface of the vertical tube, a docking hole is provided on the base plate, the docking hole is communicated with the docking cavity, the size of the base plate is consistent with the size of the top plate, and the peripheries of both exceed the periphery of the vertical tube, so that the base plate of the upper building module can be aligned and stacked on the top plate of the lower building module.

[0020] According to one embodiment of the present invention, it also includes a gasket; a through hole is provided in the middle of the gasket, the gasket is sleeved on the outer periphery of the cone tail of the connecting cone, the gasket is clamped between the top plate and the bottom plate, and the through hole of the gasket is connected to the docking hole of the bottom plate.

[0021] According to one embodiment of the present invention, process holes are respectively opened at the upper and lower ends of the vertical pipe; the process holes are waist-shaped holes, and their length direction is consistent with the axis of the vertical pipe, and the connecting cone inside the vertical pipe can be observed through the process holes.

[0022] According to one embodiment of the present invention, it also includes a module connecting plate; the module connecting plate can connect and fix the two upper building modules and the two lower building modules accordingly, and the module connecting plate is provided with two spaced connection holes along the length direction, and the module connecting plate is horizontally clamped between the vertical pipes of the upper and lower building modules, and the two connection holes are respectively arranged corresponding to the upper and lower vertical pipes, and the connection hole is communicated with the top threaded hole for the connection cone to pass through.

[0023] This embodiment also provides a building module, including an upper building module, a lower building module and a connecting structure; the upper building module and the lower building module are both frame structures formed by connecting pipe fittings, including multiple vertical vertical pipes and horizontal pipes connecting the vertical pipes; the first bolt member of the connecting cone in the connecting structure is bolted to the top plate of the lower building module, and the cone head of the connecting cone forms a bolt connection with the second bolt member in the vertical pipe of the upper building module, thereby fixing the upper building module and stacking it on the top surface of the lower building module.

[0024] According to one embodiment of the present invention, the building module also includes a foundation module, and the connection structure can also be used for the connection and fixation between the foundation module and the lower building module; the foundation module includes: a base plate; a foundation connection box, which is hollow inside and protrudes on the base plate, the foundation connection box includes a plurality of side walls erected on the base plate and a foundation top plate sealed at the opening above the side walls, and a threaded hole is provided on the foundation top plate for the first bolt to pass through; a foundation sealing plate, which is built into the foundation connection box and is located close to the bottom of the foundation top plate, and its outer peripheral edge is fixedly connected to the inner peripheral wall of the side wall; a foundation nut member, which is built into the foundation connection box and passed through the through hole of the foundation sealing plate, the upper end of the foundation nut member abuts the lower end of the foundation top plate, and the foundation nut member is provided with a threaded hole, which is aligned with the threaded hole of the foundation top plate.

[0025] It can be seen from the above technical solutions that the connection structure provided by the present invention has at least the following advantages and positive effects:

[0026] This connection structure can be used to connect and secure adjacent upper and lower building modules. It is simple and fast to operate, improving the pre-assembly quantity and quality of the building modules. Specifically, the connection structure includes a bolt assembly mounted on the vertical tube of each building module and a connecting cone for connecting the upper and lower building modules. The top plate of the bolt assembly protrudes from the upper end of the vertical tube, allowing for quick and accurate engagement with the connecting cone. The conical design of the connecting cone serves as a guide, allowing each building module to be quickly positioned in a designated location, improving the efficiency and precision of the bolt connection. Specifically, the first bolt member of the connecting cone can be inserted downwardly into the top threaded hole of the lower building module, with the cone head and cone tail protruding from the top plate. This allows for precise connection of the subsequent upper building module with the cone head, minimizing positioning and assembly errors and preventing misalignment between the upper and lower building modules. Furthermore, the cone head engages with the second bolt member through the cone head threaded hole, ultimately enabling the rapid stacking and securing of the upper building modules. This connection is simple to operate, fast, and stable, significantly improving the construction efficiency of the building modules. In addition, whether it is a bolt assembly or a connecting cone, the various components have a simple structure and are all standard threaded fasteners, which do not require customization and are highly economical and applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the separation of the superstructure module, the substructure module, and the foundation module, which are respectively connected to the connection structure in an embodiment of the present invention.

[0028] Figure 2Schematic diagram of the connection between the connection structure and the upper building module and the lower building module in the embodiment of the present invention at a first bottom viewing angle.

[0029] Figure 3 Schematic diagram of the connection between the connection structure and the upper building module and the lower building module in an embodiment of the present invention at a second lower viewing angle.

[0030] Figure 4 Schematic diagram of the external structure of the connecting cone in an embodiment of the present invention.

[0031] Figure 5 Schematic diagram of the internal structure of the connecting cone in an embodiment of the present invention.

[0032] Figure 6 Schematic diagram of the structure of the limiting member in an embodiment of the present invention.

[0033] Figure 7 Schematic diagram of the structure of the bolt assembly in the embodiment of the present invention at a first lower viewing angle.

[0034] Figure 8 Schematic diagram of the structure of the bolt assembly in the second lower viewing angle according to the embodiment of the present invention.

[0035] Figure 9 Schematic diagram of the structure of the long rod in an embodiment of the present invention.

[0036] Figure 10 Schematic diagram of the structure of the fixing rod in an embodiment of the present invention.

[0037] Figure 11 Schematic diagram of the structure of the foundation module in an embodiment of the present invention.

[0038] Figure 12 Schematic diagram of the connection between the foundation module and the lower building module in the first downward viewing angle in an embodiment of the present invention.

[0039] Figure 13 Schematic diagram of the connection between the foundation module and the lower building module in the second lower viewing angle in an embodiment of the present invention.

[0040] Figure 14 Schematic diagram of the connection between two horizontally adjacent building modules in an embodiment of the present invention.

[0041] The accompanying drawings are as follows: 1. upper building module; 2. lower building module; 11. vertical pipe; 12. horizontal pipe; 110. process hole; 13. connecting column; 14. first side plate; 16. second side plate; 3. connecting cone; 30. cone head; 301. cone head threaded hole; 302. guide chamfer; 31. cone tail; 311. column hole; 312. cone tail threaded hole; 32. first bolt member; 33. limit member; 331. slot; 34. fastening nut; 4. bolt assembly; 40. top plate; 401. top threaded hole; 42. bottom Plate; 402, docking hole; 43, fixing ring; 44, long rod; 440, main rod body; 441, upper end plate; 442, lower end plate; 443, hexagonal hole; 45, convex ring; 46, second bolt; 471, closing plate; 472, nut; 48, fixing rod; 481, rod body; 482, plug rod; 5, gasket; 6, module connecting plate; 601, connecting hole; 7, foundation module; 71, base plate; 72, foundation connecting box; 721, foundation top plate; 722, side wall; 73, foundation closing plate; 74, foundation nut. DETAILED DESCRIPTION

[0042] Typical embodiments embodying the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative rather than limiting.

[0043] This embodiment provides a building module and its connection structure, which can be used to connect and fix adjacent building modules vertically and horizontally, as well as to connect and fix each building module to a foundation module. It has the advantages of fast and stable connection and precise positioning.

[0044] Please refer to Figure 1 The building modules mainly include an upper building module 1, a lower building module 2 and a foundation module 7 arranged from top to bottom, and the connecting structure is sandwiched between the upper building module 1 and the lower building module 2 and between the lower building module 2 and the foundation module 7 to play a connecting and fixing role.

[0045] Specifically, the connection structure primarily comprises a mating cone 3, bolt assembly 4, gasket 5, and module connection plate 6. The bolt assembly 4 is mounted on the risers 11 of the upper and lower building modules 1 and 2, respectively, while the cone 3, gasket 5, and other components are independent, offering flexible use and ease of operation.

[0046] Next, please refer to Figures 1 to 6The connecting cone 3 can be used to connect the upper building module 1 and the lower building module 2, and to connect the lower building module 2 and the foundation module 7. In this way, the connecting cone 3 can not only transmit the lateral force between adjacent building modules through the hole-pin fit, but also transmit the tensile force between the upper and lower building modules.

[0047] The connecting cone 3 includes a cone head 30 , a cone tail 31 and a first bolt 32 , which are sequentially connected from top to bottom, as well as a built-in limiting member 33 and a fastening nut 34 .

[0048] The cone head portion 30 is conical in shape, specifically, the outer contour of the cone head portion 30 is arc-shaped, and the lower end portion of the cone head portion 30 is hexagonal. The cross-sectional area of ​​the cone head portion 30 increases in the downward direction. The cone head portion 30 is provided with a cone head threaded hole 301 for connection of the bolt assembly 4, and a guide chamfer 302 is also provided at the upper end opening of the cone head threaded hole 301. The guide chamfer 302 is also conical in shape, and the inner diameter of the guide chamfer 302 tends to increase in the direction away from the cone head threaded hole 301. The purpose is that the conical design of the cone head portion 30 and the structural design of the guide chamfer 302 can play a guiding and positioning role, facilitate the rapid positioning of the bolt assembly 4, and improve the efficiency and accuracy of the bolt connection.

[0049] The tapered tail portion 31 is cylindrical, and its outer diameter is consistent with that of the lower end of the tapered head portion 30. The tapered tail portion 31 has a columnar hole 311 and a taper-end threaded hole 312 extending therethrough from top to bottom. The columnar hole 311 has a larger diameter than the taper-end threaded hole 312. The columnar hole 311 is configured to accommodate the bolt head, stopper 33, and fastening nut 34 of the first bolt member 32, while the taper-end threaded hole 312 is configured to threadably engage with the first bolt member 32.

[0050] The first bolt member 32 is a standard bolt fastener used to connect to the bolt assembly 4. It comprises an integrally formed bolt head and a screw shaft extending from the lower end of the bolt head. The bolt head is received and retained within the post hole 311. The upper end of the screw shaft is fixedly embedded in the tapered threaded hole 312 via external threads, limiting the screw shaft's rotational freedom. The lower end of the screw shaft extends downwardly out of the tapered threaded hole 312.

[0051] Please refer to the specific Figure 6 The stopper 33 is thin-walled and cylindrical, with multiple slots 331 circumferentially arranged around the upper opening. The stopper 33 is internally positioned within the post hole 311. The outer diameter of the stopper 33 matches the inner diameter of the post hole 311, so that the outer edge of the stopper 33 is securely engaged with the inner wall of the post hole 311. The bottom surface of the stopper 33 is in close contact with the upper end surface of the bolt head of the first bolt 32, thereby limiting the vertical movement of the first bolt 32.

[0052] The fastening nut 34 is embedded in the stopper 33. The through hole of the fastening nut 34 is upwardly connected to the tapered threaded hole 301, allowing the bolt assembly 4 to pass through. In this embodiment, the fastening nut 34 has a standard hexagonal prism shape, and each edge of the fastening nut 34 is correspondingly engaged with a corresponding slot 331, thereby limiting its own rotational freedom.

[0053] Please refer to Figures 7 to 10 The upper building module 1 and the lower building module 2 are both hollow frame structures formed by connecting pipes, including multiple vertical vertical pipes 11 and horizontal pipes 12 connecting the vertical pipes 11. The interior of the vertical pipes 11 is hollow to accommodate the bolt connection parts of the bolt assembly 4, such as the long rod 44. Figure 1 The upper building module 1 and the lower building module 2 are both two connected horizontally adjacent structures. Therefore, the number of the vertical pipe 11, the connecting cone 3, the gasket 5 and the connecting holes 601 of the module connecting plate 6 is correspondingly set to two.

[0054] In this embodiment, process holes 110 are respectively provided at the upper and lower ends of the vertical tube 11. The process holes 110 are waist-shaped holes, and their length direction is consistent with the axis of the vertical tube 11. Through the process holes 110, the second bolt member 46 and the connecting cone 3 located inside the vertical tube 11 can be observed. It should be noted that for a closed vertical tube 11, workers cannot inspect and repair the connection status of each component, which increases the risk of connection failure. After the process holes 110 for observation are provided on the vertical tube 11, workers can conveniently inspect and repair it, thereby facilitating the smooth connection of the bolt assembly 4 and the connecting cone 3. In addition, a connecting column 13 is also provided at the lower end of the vertical tube 11, and this end of the vertical tube 11 is connected to the cross tube 12 via the connecting column 13. The interior of the connecting column 13 is hollow so as to communicate with the vertical tube 11.

[0055] The bolt assembly 4 includes a top plate 40 protruding from the upper end of the vertical tube 11, a long rod 44 built into the vertical tube 11, a fixing rod 48, a fixing ring 43, a sealing plate 471 and a nut 472, and a bottom plate 42 provided at the lower end of the connecting column 13.

[0056] The top plate 40 is rectangular and covers the upper end of the vertical tube 11, with its outer edge extending beyond the outer edge of the vertical tube 11. A top threaded hole 401 is recessed into the upper end surface of the top plate 40, through which the connecting cone 3 passes. The bottom plate 42 is also rectangular and covers the lower end of the connecting column 13. A docking hole 402 is formed in the bottom plate 42, through which the connecting cone 3 passes. The bottom plate 42 and the top plate 40 have the same dimensions, allowing the bottom plate 42 of the upper building module 1 to be aligned and stacked on the top plate 40 of the lower building module 2.

[0057] The fixing ring 43 is arranged inside the vertical tube 11 and close to the bottom plate 42. The outer periphery of the fixing ring 43 is fixed to the inner peripheral wall of the vertical tube 11, and the middle part of the fixing ring 43 is penetrated by a fixing hole for the long rod 44 to pass through.

[0058] Please refer to the specific Figure 9 The long rod 44 extends vertically inside the vertical tube 11 and can be fixed in the vertical tube 11 through a fixing ring 43 .

[0059] In this embodiment, specifically, the long rod member 44 mainly includes a main rod body 440 , a second bolt member 46 , and a protruding ring 45 sleeved on the outer circumference of the second bolt member 46 .

[0060] The main rod body 440 includes an upper end plate 441, a lower end plate 442, and a rod section vertically connecting the upper end plate 441 and the lower end plate 442. The upper end plate 441 and the lower end plate 442 are both circular, and the diameter of the upper end plate 441 and the diameter of the lower end plate 442 are both larger than the diameter of the rod section. The upper end surface of the upper end plate 441 is recessed with a hexagonal hole 443, and the lower end plate 442 is fixed to the convex ring 45. The convex ring 45 is provided with a stepped upper column hole 311 and a lower column hole 311. The size of the upper column hole 311 is larger than the size of the lower column hole 311. The bolt head at the upper end of the second bolt member 46 is clamped in the upper column hole 311, and the screw rod of the second bolt member 46 is passed through the lower column hole 311. In addition, the outer diameter of the convex ring 45 is larger than the diameter of the fixing hole. The second bolt 46 can pass downward through the fixing hole, and the protruding ring 45 is clamped by the fixing ring 43 and located on the upper end surface of the fixing ring 43, so that the long rod 44 is fixed as a whole by the fixing ring 43, limiting downward displacement.

[0061] A gap is formed between the second bolt member 46 and the base plate 42, forming a docking cavity. The docking cavity communicates with the docking hole 402 of the base plate 42. Thus, the docking cavity is used to accommodate the upwardly extending cone head 30 and cone tail 31, so that the second bolt member 46 is inserted into the corresponding cone head threaded hole 301 to form a threaded connection.

[0062] Please refer to the specific Figure 10 A fixing rod 48 is positioned between the top plate 40 and the long rod 44 to limit the upward displacement of the long rod 44. Together with the fixing ring 43, the fixing rod 48 secures the long rod 44, ensuring that the long rod 44 remains stably positioned within the riser 11 during transportation of the building modules. Furthermore, during the installation of the building modules, the fixing rod 48 needs to be removed from the riser 11 to make room for the connecting cone 3.

[0063] The fixing rod 48 includes a cylindrical rod body 481 from top to bottom and an insert rod 482 extending from the lower end of the rod body 481. The diameter of the insert rod 482 is smaller than the diameter of the rod body 481, and the lower end of the insert rod 482 is provided with a chamfer. The insert rod 482 can pass downwardly through the hexagonal hole 443 at the upper end of the long rod member 44 and cooperate with the internal threaded hole of the long rod member 44 to achieve connection and fixation with the long rod member 44. The rod body 481 is inserted upward into the top threaded hole 401 of the top plate 40. The upper end surface of the rod body 481 is recessed with a fixing hole for a wrench and a screwdriver to twist, and the fixing hole is exposed to the top threaded hole 401. In addition, the rod body 481 is fixed to the top plate 40 by a sealing plate 471 and a nut member 472 to enhance the connection effect.

[0064] The sealing plate 471 is a hexagonal plate, built into the vertical tube 11 and positioned just below the top plate 40. The outer periphery of the sealing plate 471 is fixedly connected to the inner periphery of the vertical tube 11. A nut 472 is fixedly inserted through a through-hole in the sealing plate 471, with the upper end of the nut 472 abutting the lower end of the top plate 40. A threaded hole is defined through the nut 472, which aligns with the top threaded hole 401 to accommodate the insertion of the screw of the first bolt 32.

[0065] Please refer back to Figure 2 In the process of connecting the connecting cone 3 with the vertical pipes 11 of the upper and lower building modules, it is also necessary to configure the gasket 5 and the module connecting plate 6.

[0066] The module connecting plate 6 can connect and fix two adjacent upper building modules 1 and two adjacent lower building modules 2 accordingly. The module connecting plate 6 is clamped between the top plate 40 and the bottom plate 42. The module connecting plate 6 has two spaced-apart connection holes 601 along the length direction. The module connecting plate 6 is horizontally clamped between the vertical pipes 11 of the upper and lower building modules 2. The two connection holes 601 are respectively arranged corresponding to the upper and lower vertical pipes 11. Each connection hole 601 is respectively connected to the docking hole 402 of the bottom plate 42 and the threaded hole of the top plate 40 for the connection cone 3 to pass through. Each gasket 5 is adapted to be connected to each vertical pipe 11. The gasket 5 is clamped between the module connecting plate 6 and the top plate 40 to adjust the assembly gap, prevent loosening, and enhance the connection effect. A through hole is provided in the middle of the gasket 5, and it can be sleeved on the outer periphery of the cone tail 31 of the connection cone 3 through the through hole.

[0067] In order to further enable those skilled in the art to understand in detail how the connection structure provided in this embodiment realizes the connection and fixation between the upper building module 1 and the lower building module 2, the specific connection process will be described below.

[0068] First, on the top surface of the top plate 40 of the lower building module 2, the cone tail 31 of the connecting cone 3 is passed through the connecting hole 601 of the module connecting plate 6 and the through hole of the gasket 5 in sequence, thereby limiting the relative position in the horizontal direction between the subsequent two adjacent upper building modules 1 and the lower building module 2.

[0069] Furthermore, the screw extending from the first bolt member 32 at the rear of the connecting cone 3 is inserted downwardly into the corresponding threaded hole 401 at the top of the top plate 40 to form a bolted connection. At this point, the bottom of the cone tail 31 abuts the upper end surface of the top plate 40, meaning that both the cone tail 31 and the cone head 30 protrude from the top plate 40. The protruding cone head 30, as well as the conical structure of the cone head 30 itself, serve as a guide and positioning mechanism, allowing the upper building module 1 to be quickly positioned at the designated location. This reduces misalignment between the upper and lower building modules 2, improving positioning accuracy.

[0070] Next, the upper building module 1 is stacked on top of the lower building module 2, and the upper building module 1 is moved downward, aligning its vertical tube 11 with the cone head 30. In this manner, the docking cavity at the bottom of the vertical tube 11 of the upper building module 1 is lowered until it completely accommodates the cone head 30 and the cone tail 31. The second bolt 46, also located in the docking cavity, is then inserted downward into the cone head threaded hole 301 of the cone head 30, forming a bolted connection.

[0071] After the upper building module 1 is stacked on the top surface of the lower building module 2, a hexagonal wrench is used to engage the hexagonal socket 443 of the long rod 44 of the bolt assembly 4 on the top surface of the upper building module 1. By rotating the long rod 44, the second bolt 46 at the lower end of the long rod 44 is twisted, thereby completing the threaded connection between the screw of the second bolt 46 and the fastening nut 34 in the connecting cone 3. The connecting cone 3 is then pressed downward against the top plate 40 to further ensure the strength of the bolt connection. At this point, a clamping force is generated between the bottom plate 42 of the upper building module 1, the connecting cone 3, the gasket 5, the module connecting plate 6, and the top plate 40 of the lower building module 2, limiting the vertical relative displacement between the upper and lower building modules 2, and ultimately achieving the fixed stacking of the upper building module 1 on the top surface of the lower building module 2.

[0072] Please refer to Figures 11 to 13 The foundation module 7 includes a base plate 71 , a foundation connection box 72 , a foundation sealing plate 73 and a foundation nut 74 .

[0073] The base plate 71 is a flat rectangular plate-like structure. The foundation connection box 72 is protruding from the base plate 71. The foundation connection box 72 is also rectangular and smaller in size than the base plate 71. The interior of the foundation connection box 72 is hollow and includes a plurality of side walls 722 erected on the base plate 71 and a foundation top plate 721 sealed at the opening above the side walls 722. Threaded holes are provided through the foundation top plate 721. The foundation sealing plate 73 is a hexagonal hole plate. The foundation sealing plate 73 is built into the foundation connection box 72 and is located close to the bottom of the foundation top plate 721. Its outer peripheral edge is fixedly connected to the inner peripheral wall of the side wall 722. The foundation nut member 74 is built into the foundation connection box 72 and is passed through the through hole of the foundation sealing plate 73. The upper end of the foundation nut member 74 abuts against the lower end of the foundation top plate 721. A threaded hole is opened through the foundation nut member 74, and the threaded hole is aligned with the threaded hole of the foundation top plate 721 for the first bolt member 32 of the connecting cone 3 to pass through.

[0074] The specific connection process between foundation module 7 and lower building module 2 is as follows: First, on the top surface of foundation top plate 721 of foundation module 7, the tail portion 31 of connecting cone 3 is sequentially passed through the connection hole 601 of module connecting plate 6 and the through hole of gasket 5, thereby limiting the horizontal relative position between the two lower building modules 2. Then, using a wrench tool to engage the hexagonal prism of the cone head 30 of connecting cone 3, by tightening the connecting cone 3, the screw rod extending from the first bolt member 32 at the tail of connecting cone 3 is inserted downward into the corresponding threaded hole in the foundation top plate 721, forming a bolt connection, thereby completing the connection between connecting cone 3 and the foundation. At this point, the tail portion 31 and the cone head 30 both protrude from the foundation top plate 721. Then, the lower building module 2 is moved downward toward the foundation top plate 721, so that the second bolt member 46 located in the vertical tube 11 is aligned with the cone head 30. Finally, on the top surface of the lower building module 2, a hexagonal wrench tool is used in conjunction with the hexagonal hole 443 of the long rod 44, and the second bolt 46 at the lower end of the long rod 44 is rotated to complete the threaded connection between the screw of the second bolt 46 and the fastening nut 34 in the connecting cone 3, and the connecting cone 3 is pressed downward onto the foundation top plate 721. At this point, a clamping force is generated between the bottom plate 42 of the lower building module 2, the connecting cone 3, the gasket 5, the module connecting plate 6 and the foundation top plate 721, which limits the up and down displacement of the lower building module 2 relative to the foundation module 7, and finally the lower building module 2 is fixedly stacked on the top surface of the foundation module 7.

[0075] like Figure 14 As shown, in addition to being used for the vertical connection and fixation of each building module, the connection structure can also be used for the horizontal connection and fixation between two adjacent upper building modules 1 (lower building modules 2), as well as the horizontal connection and fixation between the upper building module 1 (lower building module 2) and the foundation module 7.

[0076] A connecting post 13 is provided at one end of the transverse tube 12, connecting it to the vertical tube 11. The interior of the connecting post 13 is hollow, allowing communication with the transverse tube 12. A first side plate 14 is provided on one side of the crossbeam, with threaded holes formed in the first side plate 14 for threading the first bolt 32 of the connecting cone 3. A second side plate 16 is also provided on one side of the connecting post 13 on the other side. A long rod 44 is also fixedly mounted within the transverse tube 12, with a gap between the second bolt 46 of the long rod 44 and the second side plate 16.

[0077] The first side panels 14 and the second side panels 16 of two adjacent upper building modules 1 (lower building modules 2) are arranged opposite to each other.

[0078] The first bolt member 32 of the connecting cone 3 is laterally inserted into the threaded hole of the first side panel 14 of one upper building module 1 (lower building module 2) to form a bolted connection. The cone head 30 and cone tail 31 of the connecting cone 3 then extend laterally through the through-hole of the second side panel 16 of the other upper building module 1 (lower building module 2) into the interior of the transverse tube 12 thereof, where they are bolted together with the second bolt member 46, thereby achieving a fixed connection between two horizontally adjacent upper building modules 1 (lower building modules 2).

[0079] In summary, the connection structure of the building modules has at least the following advantages and positive effects:

[0080] This connection structure is compact, easy to operate, has high force transmission efficiency, and is easy to maintain. It allows for vertical and horizontal connection and fixation of adjacent building modules at the tops of the upper and lower building modules 1 and 2, as well as at the tops of the foundation modules 7, thereby improving the pre-assembly effort and quality of the building modules.

[0081] The conical design of the connecting cone 3 serves as a guide, allowing each building module to be quickly positioned in its designated location, improving the efficiency and precision of the bolted connections. Specifically, the first bolt member 32 of the connecting cone 3 can be inserted downwardly into the top threaded hole 401 of the lower building module 2, with the cone head 30 and cone tail 31 protruding above the top plate 40. This allows the subsequent upper building module 1 to be precisely connected to the cone head 30, reducing positioning and assembly errors. Furthermore, the cone head 30 extends upward into the vertical tube 11 of the upper building module 1 and, through the cone head threaded hole 301, engages with the second bolt member 46, thereby securing the upper building module 1 to the top plate 40 of the lower building module 2. In this way, the connecting cone 3 not only transmits lateral forces between horizontally adjacent building modules through the pin-hole engagement, but also transmits tensile forces between the upper and lower building modules 2, resulting in a fast and stable connection and improved construction efficiency. Furthermore, process holes 110 are provided at the upper and lower ends of the vertical tube 11. Through process hole 110, the second bolt member 46 and connecting cone 3 located inside standpipe 11 can be observed, facilitating inspection and maintenance, thereby facilitating the smooth connection of bolt assembly 4 and connecting cone 3. Furthermore, both the first bolt member 32 and the second bolt member 46 in both the bolt assembly 4 and the connecting cone 3 are standard threaded fasteners, eliminating the need for customization and providing high economical applicability.

[0082] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are intended to be illustrative and exemplary rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. All changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

[0083] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are intended to be illustrative and exemplary rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. All changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A connection structure for building modules, used for connecting and fixing two adjacent layers of building modules, wherein each of the building modules is a frame structure formed by connecting pipes, including a plurality of vertical risers and horizontal pipes connecting the risers; characterized in that: The connection structure includes: A connecting cone, used for connecting the vertical pipes of the upper building module and the lower building module, the connecting cone comprising a cone head, a cone tail, and a first bolt member connected in sequence, the cone head being conical in shape, and the cross-sectional area increasing in a direction approaching the cone tail, the cone head being provided with a cone threaded hole, the cone tail having an inner cavity, the bolt head of the first bolt member being accommodated in the inner cavity, and the screw rod of the first bolt member extending out of the inner cavity; The bolt assembly is arranged on the vertical tube, and includes a top plate protruding from the upper end of the vertical tube and a long rod member built into the vertical tube. The top plate is recessed with a top threaded hole for the screw rod of the first bolt member to pass through. The upper end surface of the top plate abuts against the bottom of the cone tail portion. The long rod member extends vertically and is fixedly arranged. The lower end of the long rod member is provided with a second bolt member. A gap is provided between the second bolt member and the lower end of the vertical tube to form a docking cavity. The docking cavity is used to accommodate the cone head portion and the cone tail portion, so that the second bolt member is correspondingly inserted into the cone head threaded hole to form a threaded connection.

2. The connection structure according to claim 1, wherein: The tapered tail is cylindrical and has a column hole and a tapered tail threaded hole running through it from top to bottom. The diameter of the column hole is larger than the diameter of the tapered threaded hole. The bolt head of the first bolt member is accommodated in the column hole. The upper end of the screw rod of the first bolt member is embedded in the tapered threaded hole, and the lower end of the screw rod extends downward from the tapered threaded hole.

3. The connection structure according to claim 2, wherein: The connecting cone further comprises: A limiting member is built into the column hole, the limiting member is in the shape of a thin-walled cylinder, the outer peripheral edge of the limiting member is fixedly fitted with the inner peripheral wall of the column hole, the bottom surface of the cylinder of the limiting member is tightly abutted against the bolt head of the first bolt member, and the limiting member is circumferentially provided with a plurality of slots at the upper end opening; A fastening nut is embedded in the limiting member, and the fastening nut is in a polygonal column shape. Each edge of the fastening nut is correspondingly clamped in each of the clamping grooves. The through hole of the fastening nut is connected to the cone head threaded hole for the second bolt member to pass through.

4. The connection structure according to claim 1, wherein: The cone head portion is further provided with a guide chamfer at the upper end opening of the cone head threaded hole. The guide chamfer is conical, and the inner diameter of the guide chamfer increases in a direction away from the cone head threaded hole.

5. The connection structure according to claim 1, wherein: The long rod member further includes a convex ring sleeved on the upper end of the second bolt member; The bolt assembly also includes a fixing ring, which is arranged inside the vertical pipe and close to the lower end. The outer periphery of the fixing ring is fixed to the inner peripheral wall of the vertical pipe. A fixing hole for the second bolt to pass through is provided through the middle of the fixing ring. The diameter of the fixing hole is smaller than the diameter of the convex ring, so that the convex ring is fixed to the upper end surface of the fixing ring.

6. The connection structure according to claim 5, characterized in that: The convex ring is provided with a stepped upper column hole and a lower column hole, wherein the size of the upper column hole is larger than that of the lower column hole; The bolt head at the upper end of the second bolt member is clamped in the upper column hole, and the screw rod of the second bolt member is passed through the lower column hole.

7. The connection structure according to claim 5, characterized in that: The long rod also includes a main rod body; The main rod body includes an upper end plate, a lower end plate and a rod section vertically connecting the upper end plate and the lower end plate. The upper end surface of the upper end plate is concavely provided with a hexagonal hole, and the lower end plate is fitted and fixed with the convex ring.

8. The connection structure according to claim 7, characterized in that: The bolt assembly also includes a fixing rod; The fixing rod includes a cylindrical rod body and an insertion rod extending from the lower end of the rod body, the upper end surface of the rod body is concavely provided with the fixing hole, the diameter of the rod body is consistent with the diameter of the top threaded hole, and the diameter of the rod body is larger than the diameter of the insertion rod, and the lower end of the insertion rod is chamfered; The rod body extends into the interior of the vertical tube through the threaded hole, the upper end of the rod body is clamped in the threaded hole through threaded engagement, and the fixing hole is exposed on the upper end surface of the top plate, and the insertion rod is downwardly inserted into the hexagonal hole of the main rod body to limit the up and down movement of the main rod body.

9. The connection structure according to claim 1, characterized in that: The bolt assembly further comprises: a sealing plate, which is built into the vertical pipe and located close to the bottom of the top plate, the sealing plate having a through hole formed therethrough, and the outer periphery of the sealing plate being fixedly connected to the inner periphery of the vertical pipe; A nut member is provided with a threaded hole therethrough. The nut member is fixedly inserted into the through hole of the sealing plate. The upper end of the nut member abuts against the lower end of the top plate. The threaded hole of the nut member is aligned with and communicates with the top threaded hole for the screw rod of the first bolt member to be inserted.

10. The connection structure according to claim 1, characterized in that: The bolt assembly also includes a base plate; The bottom plate protrudes downward from the lower end surface of the vertical tube, and a docking hole is provided on the bottom plate, which is communicated with the docking cavity. The size of the bottom plate is consistent with that of the top plate, and the peripheries of both exceed the periphery of the vertical tube, so that the bottom plate of the upper building module can be aligned and stacked on the top plate of the lower building module.

11. The connection structure according to claim 10, characterized in that: Also includes spacers; A through hole is provided in the middle of the gasket, the gasket is sleeved on the outer periphery of the cone tail of the connecting cone, the gasket is clamped between the top plate and the bottom plate, and the through hole of the gasket is connected to the docking hole of the bottom plate.

12. The connection structure according to claim 1, characterized in that: Process holes are respectively provided at the upper and lower ends of the vertical pipe; The process hole is a waist-shaped hole, the length direction of which is consistent with the axis of the vertical pipe. The connecting cone located inside the vertical pipe can be observed through the process hole.

13. The connection structure according to claim 1, wherein: Also included is a module connection plate; The module connecting plate can connect and fix the two upper building modules and the two lower building modules accordingly. The module connecting plate is provided with two spaced-apart connecting holes along the length direction. The module connecting plate is horizontally clamped between the vertical pipes of the upper and lower building modules. The two connecting holes are respectively arranged corresponding to the upper and lower vertical pipes. The connecting hole is communicated with the top threaded hole for the connection cone to pass through.

14. A building module, characterized in that: comprising an upper building module, a lower building module and a connection structure as claimed in any one of claims 1 to 13; The upper building module and the lower building module are both frame structures formed by connecting pipes, including multiple vertical vertical pipes and horizontal pipes connecting the vertical pipes; The first bolt member of the connecting cone in the connecting structure is bolted to the top plate of the lower building module, and the cone head of the connecting cone is bolted to the second bolt member in the vertical tube of the upper building module, thereby fixing the upper building module to be stacked on the top surface of the lower building module.

15. The building module according to claim 14, characterized in that: The building module also includes a foundation module, and the connection structure can also be used to connect and fix the foundation module with the lower building module; The foundation module comprises: substrate; a foundation connection box, which is hollow inside and protrudes from the base plate, comprising a plurality of side walls erected on the base plate and a foundation top plate sealed at openings above the side walls, wherein the foundation top plate is provided with threaded holes for the first bolts to pass through; A foundation sealing plate, which is built into the foundation connection box and is located close to the bottom of the foundation top plate, with its outer peripheral edge fixedly connected to the inner peripheral wall of the side wall; The foundation nut is built into the foundation connection box and passed through the through hole of the foundation sealing plate. The upper end of the foundation nut abuts the lower end of the foundation top plate. The foundation nut is provided with a threaded hole, which is aligned with the threaded hole of the foundation top plate.

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