Modularized building system and connecting joints, connecting rods and construction method thereof

Abstract

The invention discloses a modular building system and a connecting node, a connecting rod and a construction method thereof. The modular building system comprises the connecting node, the connecting rod and a plate; the connecting node is of a three-dimensional node structure extending in multiple directions, and a node pin hole is formed in the connecting node; the connecting rod is a long rod piece with a rectangular section, the interior of the connecting rod is hollow so as to form an assembling cavity used for being connected with the connecting joint in a sleeving mode, and an on-rod pin hole matched with the joint pin hole is formed in the rod wall of the connecting rod; at least one side wall of the connecting rod is provided with a mounting groove for mounting a plate along the length direction of the connecting rod; the edge of the plate is inserted into the mounting groove to form an enclosure face of a building.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and in particular to modular building systems and their connection nodes, connecting rods, construction methods, and construction techniques. Background Technology

[0002] Traditional construction methods typically involve wet work such as on-site concrete pouring or bricklaying, which results in long construction periods, high labor intensity, severe environmental pollution, and significant material waste. With the development of industrialized construction, modular building systems are gradually gaining importance.

[0003] Existing modular building systems mostly use bolted or welded connections to link members and nodes, which has drawbacks such as complex connections, high installation precision requirements, and difficult disassembly. Furthermore, traditional modular building systems typically require separate piping systems, occupying building space and affecting interior aesthetics. Panel installation also often uses additional connectors, increasing construction steps and costs.

[0004] Therefore, there is an urgent need for a modular building system that is simple and reliable to connect, highly integrated, and easy to construct. Summary of the Invention

[0005] The purpose of this invention is to provide a modular building system and its connecting nodes, connecting rods, and construction methods to solve the aforementioned problems existing in the prior art.

[0006] The modular building system provided by this invention includes connecting nodes, connecting rods, and panels. The connecting nodes are multi-directionally extending three-dimensional node structures with node pin holes. The connecting rods are long rods with rectangular cross-sections, hollow inside to form an assembly cavity for fitting the connecting nodes. The connecting rod walls have pin holes that mate with the node pin holes. At least one side wall of the connecting rod has a mounting groove along its length for installing the panels.

[0007] The connection nodes include right-angle nodes and oblique-angle nodes; the connection axes of the right-angle nodes are perpendicular to each other, forming the vertical and horizontal frames of the building; the oblique-angle nodes form an angle greater than 30° and less than 90° between at least two connection axes, forming a sloping roof.

[0008] The connecting rod is sleeved on the outside of the connecting node through the assembly cavity, and is limited by positioning pins or positioning bolts set in the pin holes of the node and the pin holes on the rod, so that multiple connecting rods are connected to form a spatial frame through the connecting node, and the plate is inserted into the mounting groove through its edge to form the building's enclosure surface.

[0009] Furthermore, the node pin hole is a smooth hole, and the pin hole on the rod is a smooth hole or a threaded hole. The positioning pin or positioning bolt passes through the node pin hole and the pin hole on the rod and is fixed, thereby locking the connecting rod to the connecting node.

[0010] Furthermore, the connecting node is provided with a limiting boss on the outer side of its end in each connecting direction. When the connecting rod is sleeved in place, its end face abuts against the limiting boss to limit the sleeve depth and bear the axial pressure.

[0011] Furthermore, the cross-sectional shape of the assembly cavity of the connecting rod is adapted to the outer contour shape of the corresponding connecting end of the connecting node, both being rectangular, and there is a tiny gap between them for accommodating sealant.

[0012] Furthermore, the system includes a concealed pipeline system, which is formed by connecting a first cavity inside the connecting node and a first channel inside the connecting rod, for laying electrical wires and pipelines.

[0013] Furthermore, the first cavity has an openable inspection port at a corresponding position on the outer wall of the connecting node; the connecting rod has an openable inspection port at a position corresponding to the first cavity of the inner node after sleeve connection.

[0014] Furthermore, an elastic sealing strip is embedded inside the groove of the mounting slot, forming a waterproof barrier to prevent liquid from seeping in.

[0015] The present invention also provides a connection node for the above-mentioned modular building system, which is a multi-directionally extending three-dimensional structure, including a node body, wherein the node body is provided with a plurality of connection ends, each connection end having a rectangular outer contour and a node pin hole; a first cavity for wiring is formed inside the node body; the node body is integrally cast from metal.

[0016] The present invention also provides a connecting rod for the above-mentioned modular building system, which is a long rod with a rectangular cross-section, including a rod body, wherein an assembly cavity for fitting a connecting node is formed inside the rod body, and a pin hole for fitting a node pin hole is provided on the rod wall; at least one side wall of the rod body is provided with a plate mounting groove extending along its length direction; a first channel for wiring is formed inside the rod body; and the rod body is extruded from a metal profile.

[0017] This invention also provides a construction method for the above-mentioned modular building system, comprising the following steps: (1) Align the assembly cavity of the connecting rod with the connecting end of the connecting node; (2) Adjust the angle of the connecting rod so that the pin hole on the rod is aligned with the node pin hole; (3) Insert the locating pin or screw in the locating bolt to complete the mechanical locking; (4) Repeat the above steps to assemble the main vertical and horizontal frames of the building using right-angle nodes and connecting rods, and assemble the inclined roof frame of the building using oblique-angle nodes and connecting rods. (5) Insert the edge of the plate directly into the mounting groove on the side wall of the connecting rod; (6) The wires are installed in a concealed pipeline system consisting of the first channel of the connecting rod and the first cavity of the node.

[0018] The beneficial effects of this invention are as follows: 1. It adopts a socket-type connection method, which is easy to install and reliable. 2. Integrated pipeline system improves space utilization; 3. The sheet metal is directly inserted into the mounting slot, simplifying the installation process; 4. Modular design facilitates standardized production and rapid construction; 5. It is detachable and reusable, which aligns with the concept of green building. Attached Figure Description

[0019] Figure 1 This is a partial assembly diagram of the modular building system of the present invention; Figure 2 This is a schematic diagram of a three-dimensional structure with three right-angle nodes; Figure 3 A schematic diagram of a three-dimensional structure with four right-angle nodes; Figure 4 A schematic diagram of a three-dimensional structure with five right-angle nodes; Figure 5 This is a schematic diagram of a three-dimensional structure with three oblique angle nodes; Figure 6 This is a schematic diagram of a three-dimensional structure with four oblique angle nodes; Figure 7 This is a schematic diagram of a three-dimensional structure with five oblique angle nodes; Figure 8-11 This is a schematic diagram of the connecting rod. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Example 1: Basic Building Frame System like Figure 1 As shown, the modular building system of this embodiment includes a connecting node 1, a connecting rod 2, and a plate 3. The connecting node 1 is a multi-directionally extending three-dimensional node structure, the connecting rod 2 is a long rod with a rectangular cross-section, and the plate 3 is fixed by inserting it into the mounting groove on the side wall of the connecting rod 2.

[0022] Connection node 1 includes two basic types: right-angle nodes and beveled nodes. Right-angle nodes are used to form the vertical and horizontal frames of a building, while beveled nodes are used to form sloping roofs.

[0023] like Figure 2 As shown, the three-way right-angle node 11 is a typical spatial L-shaped node, comprising three mutually perpendicular straight connection ends 111. These three straight connection ends 111 extend along the three positive directions of the spatial rectangular coordinate system (X, Y, and Z), forming a spatial corner structure. The outer contour of each straight connection end 111 is rectangular, and its dimensions match the assembly cavity 22 of the connecting rod 2. Two node pin holes 112 are provided on the straight connection ends 111; the node pin holes 112 are light holes. A first cavity 113 for wiring is formed inside the node body. The three-way right-angle node 11 is integrally cast from aluminum alloy, making it lightweight and high-strength, suitable for corner positions in architectural spaces.

[0024] like Figure 3 As shown, the four-way right-angle node 12 is a typical spatial T-shaped node, comprising four straight connecting ends 111. Three of these connecting ends extend along the positive X, Y, and Z directions of the spatial rectangular coordinate system, respectively, while the fourth connecting end extends along the negative Z-axis. This structure forms a spatial cross-shaped connection node capable of connecting members in four spatial directions. Two node pin holes 112 are provided on the straight connecting ends 111, and a first cavity 113 is formed inside the node body. The four-way right-angle node 12 is also cast from aluminum alloy and is suitable for connecting spatial grid frames, particularly for connecting floors and columns.

[0025] like Figure 4 As shown, the five-way right-angle node 13 is a typical spatial cross-shaped node, comprising five straight connecting ends 111. Three or four of these connecting ends extend along the positive and negative directions of the X, Y, and Z axes of the spatial rectangular coordinate system, respectively. This structure forms a complete spatial connection node capable of connecting rods in five spatial directions. Two node pin holes 112 are provided on the straight connecting ends 111, and a first cavity 113 is formed inside the node body. The five-way right-angle node 13 is integrally cast from high-strength aluminum alloy and undergoes heat treatment, resulting in excellent mechanical properties.

[0026] like Figure 5 As shown, the three-way beveled node 14 includes two straight connecting ends 111 and one inclined connecting end 142. The two straight connecting ends 111 are perpendicular to each other and extend along the X and Y directions respectively; the inclined connecting end 142 forms an angle of 1°-60° with the horizontal plane and is used to connect the roof diagonal bracing. This node structure is particularly suitable for the edge of the roof, enabling a smooth transition from the wall to the roof. Both connecting ends 111 and 142 are provided with node pin holes 112. The three-way beveled node 14 has a first cavity 113 formed inside, which is cast from aluminum alloy.

[0027] like Figure 6 As shown, the four-way angled node 15 includes 2-3 straight connecting ends 111 and one inclined connecting end 142. The straight connecting ends 111 are perpendicular to each other; the inclined connecting end 142 forms an angle of 1°-60° with the horizontal plane and is used to connect the roof diagonal bracing. This node structure forms a spatial angled connection, capable of simultaneously connecting three horizontal members and one member of an inclined roof, suitable for complex roof intersections. Connecting ends 111 and 142 are both provided with node pin holes 112. The four-way angled node 15 has a first cavity 113 formed inside, which is cast from aluminum alloy.

[0028] like Figure 7 As shown, the five-way oblique node 16 includes 2-4 straight connecting ends 111 and oblique connecting ends 142. The straight connecting ends extend along the positive and negative X-axis and Y-axis directions respectively, forming a complete connecting surface; the oblique connecting ends 142 form an angle of 1°-60° with the horizontal plane and are used to connect roof diagonal braces. Both connecting ends 111 and 142 are provided with node pin holes 112, and a first cavity 113 is formed inside the node body. The five-way oblique node is made of cast aluminum alloy, which is lightweight and high-strength. A reinforcing partition is installed inside the node cavity to ensure structural rigidity.

[0029] like Figure 8 As shown, the connecting rod 2 is a long rod with a rectangular cross-section, including a rod body 21. An assembly cavity 22 for fitting the connecting node is formed inside the rod body 21. The cross-sectional shape of the assembly cavity 22 is rectangular, matching the outer contour of the connecting end of the connecting node. Each of the four side walls of the rod body 21 has a plate mounting groove 23 extending along its length. The rod body 21 is extruded from aluminum alloy profiles, ensuring consistency in cross-sectional shape and production efficiency.

[0030] An elastic sealing strip is embedded inside the groove of the mounting slot 23, forming a waterproof barrier to prevent liquid ingress. The sealing strip 231 is made of EPDM rubber, which has good weather resistance and sealing performance.

[0031] The connecting rod 2 is sleeved onto the outside of the connecting end 111 of the connecting node 1 through the assembly cavity 22. The connecting node 1 has a limiting boss 114 on the outer side of its end in each connecting direction. When the connecting rod 2 is sleeved in place, its end face abuts against the limiting boss 114 and bears the axial pressure.

[0032] After the node pin hole 112 is aligned with the pin hole 26 on the rod, the stainless steel locating pin 4 is inserted to complete the mechanical locking. There is a small gap of 0.5mm between the assembly cavity 22 and the connecting end 111 to accommodate silicone sealant, which enhances the sealing and waterproof performance of the connection.

[0033] The edge of the panel 3 is directly inserted into the mounting groove 23 on the side wall of the connecting rod 2 and secured by an elastic sealing strip to form the building's enclosure. The panel 3 can be a glass panel, metal panel, or composite panel, with a thickness matching the width of the mounting groove 23. This installation method eliminates the need for additional connectors, simplifying the installation process and improving construction efficiency.

[0034] The construction method of the modular building system of the present invention includes the following steps: (1) Foundation preparation: Arrange the foundation embedded parts according to the design drawings, and adjust the level and elevation; (2) Frame assembly: Align the assembly cavity of the connecting rod with the connecting end of the connecting node until the rod end contacts the limiting boss; (3) Positioning and fixing: Adjust the angle of the connecting rod so that the pin hole on the rod is aligned with the node pin hole, insert the positioning pin or screw in the positioning bolt to complete the mechanical locking; (4) Frame expansion: Repeat the above steps, first use right-angle nodes and connecting rods to assemble the main vertical and horizontal frames of the building, and then use oblique-angle nodes and connecting rods to assemble the sloping roof frame of the building. (5) Plate installation: Insert the edge of the plate directly into the installation groove on the side wall of the connecting rod, and install it layer by layer from bottom to top; (6) Pipeline installation: The wires are installed in a concealed pipeline system consisting of the first channel of the connecting rod and the first cavity of the node, and are connected and inspected through the inspection port; (7) Sealing treatment: Apply sealant to all joints to complete the system sealing; (8) Final inspection: Check the firmness and sealing of all connection points to ensure construction quality.

[0035] Advantages of the present invention 1. Simple and reliable connection: The connection method adopts a socket and pin / bolt locking method, which is simple and quick to install, and has high connection reliability, improving efficiency by more than 50% compared with traditional welding or complex bolt connection.

[0036] 2. Integrated Piping System: The piping system is integrated inside the poles and nodes, which does not occupy the building's usable space, is aesthetically pleasing and practical, and is easy to maintain.

[0037] 3. Convenient and efficient construction: The panels are directly inserted into the installation slots without the need for additional connectors, resulting in fast construction speed, which is more than 40% faster than traditional curtain wall installation.

[0038] 4. Highly flexible and adaptable: Through the combination of various types of nodes, it can adapt to different architectural forms, from simple cubes to complex spatial structures.

[0039] 5. Excellent spatial stiffness: The five-way nodes and other spatial connection nodes form a stable spatial force system with good seismic performance.

[0040] 6. Reusable: All connections are mechanical, facilitating disassembly and reuse, in line with green building principles.

[0041] 7. Good economic performance: fast construction speed, low labor cost, high material utilization rate, and overall cost is reduced by more than 20% compared with traditional building systems.

[0042] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A modular building system and its connecting node, connecting rod and construction method, comprising connecting nodes, connecting rods and panels; characterized in that: The connecting node is a multi-directional extending three-dimensional node structure, which is provided with a node pin hole; the connecting rod is a long rod member with rectangular cross section, which is hollow inside to form an assembly cavity for sleeving the connecting node, and a rod upper pin hole is formed on the rod wall of the connecting rod to cooperate with the node pin hole; at least one side wall of the connecting rod is provided with a mounting groove for mounting the plate along the length direction thereof; the plate is inserted into the mounting groove through the edge thereof to form the envelope surface of the building.

2. The modular building system of claim 1, and its connecting nodes, connecting rods and method of construction, wherein, The connecting node includes a right-angle node for forming vertical and horizontal frames and a roof node for forming an inclined roof; the connecting direction axes of the right-angle node are perpendicular to each other; the included angle between at least two connecting direction axes of the roof node is greater than 30° and less than 90°; wherein the connecting rod is sleeved outside the connecting node through the assembly cavity, and is limited by the positioning pin or positioning bolt arranged in the node pin hole and the rod upper pin hole, so that a plurality of connecting rods are connected into a space frame through the connecting node.

3. The modular building system of claim 1, and its connecting nodes, connecting rods and method of construction, wherein, The node pin hole is a light hole, and the rod upper pin hole is a light hole or a threaded hole, and the positioning pin or positioning bolt passes through the node pin hole and the rod upper pin hole and is fixed, thereby locking the connecting rod and the connecting node.

4. The modular building system of claim 1, and its connecting nodes, connecting rods and method of construction, wherein, The connecting node is further provided with a limiting boss outside the end of each connecting direction, and the end surface thereof abuts against the limiting boss when the connecting rod is sleeved in place, so as to limit the sleeving depth and bear the axial pressure.

5. The modular building system of claim 1, and its connecting nodes, connecting rods and method of construction, wherein, The system includes a concealed pipeline system formed by the first cavity formed in the connecting node and the first channel formed in the connecting rod, which are connected in communication, for laying electric wires and pipelines.

6. The modular building system of claim 5, and its connecting nodes, connecting rods and method of construction, wherein, The first cavity is provided with an openable inspection opening at the corresponding position of the outer wall of the connecting node; the connecting rod is provided with an openable inspection opening at the position corresponding to the internal node first cavity after being sleeved.

7. The modular building system of claim 1, and its connecting nodes, connecting rods and method of construction, wherein, An elastic sealing strip is embedded in the inner side of the groove of the mounting groove, to form the first waterproof barrier for preventing liquid from penetrating.

8. A connection node for the modular building system of any one of claims 1-7 and its connection nodes, connection rods and construction method, which is a multi-directionally extending three-dimensional structure, characterized by: The node body is provided with a plurality of connecting ends, the outer contour of each connecting end is rectangular, and the node body is provided with a node pin hole; a first cavity for wiring is formed in the node body; the node body is integrally cast formed by metal.

9. A connecting rod for use in a modular building system according to any one of claims 1-7 and its connecting nodes, connecting rods and construction method, which is a long rod member of rectangular cross-section, characterised in that: The rod body is provided with a mounting groove for mounting the plate along the length direction thereof on at least one side wall of the rod body; a first channel for wiring is formed in or outside the rod body; the rod body is extruded formed by metal profile.

10. A method of construction of a modular building system according to any one of claims 5 to 7, and its connecting nodes, connecting rods and method of construction, characterised in that, The method comprises the following steps: (1) aligning and sleeving the assembly cavity of the connecting rod to the connecting end of the connecting node; (2) adjusting the angle of the connecting rod to align the rod upper pin hole with the node pin hole; (3) inserting the positioning pin or screwing the positioning bolt to complete the mechanical locking; (4) repeating the above steps to assemble the vertical and horizontal frames of the building body using the right-angle node and the connecting rod, and to assemble the inclined roof frame of the building using the roof node and the connecting rod; (5) directly inserting the edge of the plate into the mounting groove of the side wall of the connecting rod; (6) The electric wire is arranged in the concealed pipeline system composed of the first passageway of the connecting rod and the first cavity of the node.

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