Fabricated grid structure

By using detachable nodes and rod assembly connections, combined with hollow tubular structures and fixed bases, the problems of difficult disassembly and low installation efficiency of traditional space frame structures are solved, enabling rapid and efficient installation and reuse of space frame structures, and improving load-bearing capacity and safety.

CN224133905UActive Publication Date: 2026-04-17BEIJING HENGCHUANG ADVANCED MATERIALS & ADDITIVE MFG INST CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING HENGCHUANG ADVANCED MATERIALS & ADDITIVE MFG INST CO LTD
Filing Date
2025-02-18
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional space frame structures are difficult to disassemble, use limited materials, and have low installation efficiency, making it difficult to meet the needs of rapid construction and reuse. Furthermore, the complex node design makes it difficult to balance lightweight and strength.

Method used

It adopts a detachable node and rod assembly connection method, and can be quickly installed and disassembled through fasteners. The rod assembly can be adjusted in shape and size according to needs. The hollow tubular structure is used to reduce its own weight, and the fixing base provides a stable foundation.

Benefits of technology

It achieves flexibility and efficient installation of the space frame structure, improves load-bearing capacity and deformation resistance, reduces construction difficulty and material costs, ensures the safety and reliability of the structure, and supports reuse.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an assembly type grid structure. The assembly type grid structure comprises nodes, rod piece assemblies and first fixing pieces. A plurality of rod piece assemblies are mutually connected to form a curved surface latticed structure, every three rod piece assemblies are sequentially connected end to end to form a triangular structural piece, every two adjacent triangular structural pieces share one rod piece assembly, every two opposite triangular structural pieces share one node, and the nodes are detachably arranged at the connecting positions of the rod piece assemblies. The node and the rod piece assembly are connected through a first fixing piece. A plurality of rod piece assemblies are connected to form a curved surface grid shape, the flexibility is high, structures with different shapes and sizes can be constructed through adjustment according to needs, and the requirements of multiple scenes such as camping tents and exhibition halls are met. The rod pieces form a triangular structural piece, loads can be evenly dispersed, stress concentration is avoided, and the bearing capacity and the non-deformability are improved. The joint is detachably connected with the rod assembly, installation is simple and efficient, difficulty and strength are reduced, and the construction period is shortened. When transformation, relocation or dismantling is needed, dismantling is convenient, parts can be cleaned, maintained and reused, and cost and resource waste are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of building structure technology, specifically to a prefabricated space frame structure. Background Technology

[0002] Traditional space frame structures often employ welding or bolting for fixing, which leads to difficulties in disassembly, limited material options, and low installation efficiency. Especially in scenarios requiring rapid assembly or adjustment (such as temporary buildings and exhibition booths), traditional structures struggle to meet the demands for flexibility and reusability. Furthermore, the complex node designs of existing space frame structures make it difficult to balance lightweight design with strength. Therefore, this invention proposes a multifunctional space frame structure that is quick to assemble and disassemble, structurally stable, and reusable. Utility Model Content

[0003] Therefore, this utility model provides a prefabricated space frame structure to solve the above-mentioned problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] According to a first aspect of this utility model, a prefabricated space frame structure includes nodes, rod assemblies, and a fixing member; multiple rod assemblies are interconnected to form a curved grid structure, wherein every three rod assemblies are connected end to end to form a triangular structural member, adjacent triangular structural members share one rod assembly, and opposite triangular structural members share one node, the node is detachably disposed at the connection of the rod assembly, and the node and the rod assembly are connected by the fixing member.

[0006] Furthermore, the node includes a body and a connecting plate, several connecting plates are arranged around the axis of the body, and the connecting plate protrudes outward along the body by at least a portion. The connecting plate has a first mounting hole, and the end of the rod assembly has a matching second mounting hole. The first fixing member passes through the first mounting hole and the second mounting hole, so that the connecting plate and the rod assembly can be detachably connected.

[0007] Furthermore, the body is a hollow tubular structure.

[0008] Furthermore, the rod assembly includes timber, reinforcing steel plates, and a second fastener. Two timbers are arranged parallel to each other at intervals. The reinforcing steel plates are provided along the length of the sidewalls of the two timbers that are close to each other. The reinforcing steel plates are fixed to the sidewalls of the timbers by self-tapping screws. The second fastener passes through the timbers and the reinforcing steel plates, allowing the two timbers to be detachably connected. The sidewalls of the two reinforcing steel plates are abutted together. The end of the reinforcing steel plate has a third mounting hole. The third mounting hole and the second mounting hole are coaxially arranged. The connecting plate is clamped between the two reinforcing steel plates. The first fastener passes through the first, second, and third mounting holes, allowing the connecting plate to be detachably connected to the timbers and the reinforcing steel plates.

[0009] Furthermore, the first mounting hole and the third mounting hole are coaxially arranged.

[0010] Furthermore, it also includes a fixing seat, which is provided below the node where the triangular structural member contacts the ground or mounting platform. The fixing seat is horizontally arranged with the ground or mounting platform, and the fixing seat is used to fix the bottom triangular structural member of the curved mesh structure to the ground or mounting platform.

[0011] Furthermore, the fixing base is provided with a plurality of mounting holes, which are evenly distributed on the fixing base and are perpendicular to the ground or mounting platform.

[0012] Furthermore, the connecting plate has a strip-shaped structure.

[0013] Furthermore, the triangular structural member is an equilateral or isosceles triangle structure.

[0014] Furthermore, the cross-sectional area of ​​the reinforcing steel sheet is smaller than the cross-sectional area of ​​the timber.

[0015] This utility model has the following advantages:

[0016] Firstly, this invention utilizes multiple interconnected rod components to form a curved grid structure. This curved grid structure offers high flexibility, allowing for adjustments and variations based on different architectural design requirements and site conditions. By altering the length, angle, and node positions of the rod components, various shapes and sizes of grid structures can be constructed to meet the functional needs of different architectural spaces, such as camping tents, exhibition halls, and stadiums. Every three rod components are connected end-to-end to form a triangular structural member, with adjacent triangular members sharing a single rod component. When subjected to external forces, the triangular structure evenly distributes the load across all rod components, effectively preventing stress concentration and significantly improving the structure's load-bearing capacity and deformation resistance, ensuring the safety and reliability of the entire grid structure under complex stress environments.

[0017] Secondly, the nodes are detachably located at the joints of the member components and connected via fastener one. This detachable connection method simplifies and simplifies the installation process of the space frame structure. On the construction site, workers only need to assemble the various member components and nodes according to the design requirements and secure them using fastener one to complete the installation. Compared with traditional welding or other non-detachable connection methods, this avoids complex construction processes and the use of specialized equipment, reduces installation difficulty and labor intensity, shortens the construction cycle, and improves construction efficiency.

[0018] Furthermore, when the space frame structure needs to be modified, relocated, or dismantled, the detachable connections between the nodes and member components allow for easy disassembly by workers. The disassembled components can be cleaned, maintained, and stored, and reused in subsequent projects, significantly reducing material costs and resource waste. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 A schematic diagram of a prefabricated space frame structure provided for some embodiments of this utility model. Figure 1 .

[0022] Figure 2 This is a top view of a prefabricated space frame structure provided for some embodiments of the present utility model.

[0023] Figure 3 Provided for some embodiments of this utility model Figure 1 Enlarged view of part A.

[0024] Figure 4 Provided for some embodiments of this utility model Figure 1 Enlarged view of part B.

[0025] Figure 5 The above diagram illustrates the nodes of some embodiments of this utility model.

[0026] Figure 6 This is a schematic diagram of a rod assembly provided in some embodiments of the present invention.

[0027] Figure 7 This is a schematic diagram showing the connection of rod components and nodes provided in some embodiments of this utility model.

[0028] Figure 8 A schematic diagram of a prefabricated space frame structure provided for some embodiments of this utility model. Figure 2 .

[0029] Figure 9 A schematic diagram of a prefabricated space frame structure provided for some embodiments of this utility model. Figure 3 .

[0030] Figure 10 This is a schematic diagram of various styles of nodes provided in some embodiments of this utility model.

[0031] In the diagram: 1. Node; 101. Body; 102. Connecting plate; 103. Mounting hole one; 2. Timber; 201. Mounting hole two; 3. Reinforcing steel plate; 301. Mounting hole three; 4. Self-tapping screw; 5. Fixing base; 501. Mounting hole four; 6. Fastener one; 601. Bolt; 602. Washer; 603. Nut; 7. Fastener two. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] Example 1

[0034] like Figures 1 to 10 As shown, a prefabricated space frame structure in the first aspect embodiment of this utility model includes nodes 1, rod assemblies, and fasteners 6; multiple rod assemblies are interconnected to form a curved grid structure, such as... Figure 8 The arched curved surface space frame structure shown is as follows: Figure 9The hemispherical curved space frame structure shown comprises three member components connected end-to-end to form a triangular structural member. Adjacent triangular structural members share a single member component. These triangular structural members are arranged at different positions within the curved grid structure space, and opposite triangular structural members share a single node. Node 1 is detachably located at the connection point of the member component, and Node 1 is connected to the member component via fastener 6. The curved grid structure constructed from multiple triangular structural members can evenly distribute the load across all member components when subjected to external forces, effectively avoiding stress concentration and significantly improving the structure's load-bearing capacity and deformation resistance. This ensures the safety and reliability of the entire space frame structure under complex stress environments.

[0035] Node 1 includes a body 101 and a connecting plate 102. The connecting plate 102 is a strip-shaped structure, and several connecting plates 102 are arranged around the axis of the body 101, with each connecting plate 102 protruding outward from the body 101 by at least a portion, such as... Figure 5 and Figure 10 As shown, the tilt angle and number between the connecting plate 102 and the body 101 can be adjusted and varied according to different architectural design requirements and site conditions. By changing the length, angle and position of the nodes of the rod components, various shapes and sizes of space frame structures can be constructed to meet the functional needs of different architectural spaces, such as camping tents, exhibition halls, and stadiums.

[0036] Secondly, the nodes are detachably located at the joints of the member components and connected via fastener one. This detachable connection method simplifies and simplifies the installation process of the space frame structure. On the construction site, workers only need to assemble the various member components and nodes according to the design requirements and secure them using fastener one to complete the installation. Compared with traditional welding or other non-detachable connection methods, this avoids complex construction processes and the use of specialized equipment, reduces installation difficulty and labor intensity, shortens the construction cycle, and improves construction efficiency.

[0037] Furthermore, when the space frame structure needs to be modified, relocated, or dismantled, the detachable connections between the nodes and member components allow for easy disassembly by workers. The disassembled components can be cleaned, maintained, and stored, and reused in subsequent projects, significantly reducing material costs and resource waste.

[0038] The connecting plate 102 has two mounting holes 103. The end of the rod assembly has two matching mounting holes 201. The fastener 6 passes through the mounting holes 103 and 201, so that the connecting plate 102 and the rod assembly can be detachably connected.

[0039] Optionally, node 1 is a one-piece molded structure made of hard metal. Hard metal itself has high strength and rigidity, and can withstand large external forces and loads. The one-piece molded structure has no splicing gaps or weak connection points, which allows the node to uniformly transfer stress when under load, effectively avoiding local deformation or damage, thereby enhancing the stability and reliability of the entire space frame structure and ensuring its safe operation under various complex environments and operating conditions.

[0040] Optionally, the triangular structural components can be equilateral or isosceles triangles. The regular shape of equilateral or isosceles triangles facilitates standardized design and production. During manufacturing, the requirements for the length and angle of the rods are relatively fixed and clear, allowing manufacturers to mass-produce according to uniform specifications and standards, thereby improving production efficiency and reducing production costs.

[0041] Optionally, the main body 101 preferably has a hollow tubular structure, such as a circular or square hollow tubular shape. While ensuring structural strength and stiffness, the hollow tubular structure can reduce the amount of material used, thus lightening the structure's self-weight, while maintaining a high load-bearing capacity, achieving efficient utilization of the material's mechanical properties. Simultaneously, the hollow tubular structure has a certain amount of internal hollow space, which can be used to install various pipelines, cables, and other facilities, facilitating the functional expansion of the space frame structure.

[0042] In the above embodiments, it should be noted that the fixing component 6 can be a fixing pin, fastener, etc. When the fixing component 6 is a fixing pin, the fixing pin is interference-fitted into the mounting hole 103 and the mounting hole 201, so that the connecting plate 102 and the rod assembly can be detachably connected. When the fixing component 6 is a fastener, the fastener consists of a bolt 601, a washer 602, and a nut 603. The bolt 601 first passes through the mounting hole 103 and the mounting hole 201, then the washer 602 is fitted on it, and then the bolt 601 is tightened through the nut 603, so that the connecting plate 102 and the rod assembly can be detachably connected.

[0043] Example 2

[0044] like Figure 1-10As shown, a prefabricated space frame structure includes all the contents of Embodiment 1. In addition, the member components include timber 2, reinforcing steel plates 3, and fasteners 7. The timber 2 is typically a long rectangular member. Timber 2 itself has a certain strength and toughness and is a common building structural material. Two timber 2 are arranged parallel to each other at intervals. Reinforcing steel plates 3 are provided along the length of the sidewalls of the two timber 2 that are close to each other. The reinforcing steel plates 3 are fixed to the sidewalls of the timber 2 by self-tapping screws 4. Fasteners 7 are inserted through... The two wooden blocks 2 are detachably connected, and the side walls of the two reinforcing steel plates 3 are fitted together. The end of the reinforcing steel plate 3 is provided with a mounting hole 301. The mounting hole 301 and the mounting hole 201 are coaxially arranged. The connecting plate 102 is clamped between the two reinforcing steel plates 3. The fastener 6 passes through the mounting hole 103, the mounting hole 201 and the mounting hole 301, so that the connecting plate 102 and the wooden blocks 2 and the reinforcing steel plates 3 are detachably connected.

[0045] The technical effects achieved by the above embodiments are as follows: the overall strength of the rod assembly is further enhanced by the setting of reinforcing steel plates. When the rod assembly is subjected to external force, the reinforcing steel plates can share part of the stress and work together with the timber to improve the rod assembly's ability to resist deformation and damage, making the entire space frame structure more stable and reliable.

[0046] Optionally, mounting hole 103 and mounting hole 301 are coaxially arranged. When mounting hole 1 and mounting hole 3 are coaxial, fasteners such as bolts and fixing pins can pass through these two holes accurately, so that the connecting plate 102 is tightly connected to the reinforcing steel plate 3 and the wooden block 2.

[0047] Optionally, the cross-sectional area of ​​the reinforcing steel sheet 3 is smaller than that of the timber 2. Under the premise of meeting the requirements of structural strength and stability, the reinforcing steel sheet with a smaller cross-sectional area can effectively reduce the self-weight of the rod assembly, which is especially important for large space frame structures.

[0048] In the above embodiments, it should be noted that the structure of the second fastener 7 and the first fastener 6 is the same.

[0049] Example 3

[0050] like Figure 1-10 As shown, a prefabricated space frame structure includes all the contents of Embodiment 2, except that it also includes a fixing seat 5. The fixing seat 5 is provided below the node 1 where the triangular structural member contacts the ground or mounting platform. The fixing seat 5 and the ground or mounting platform are horizontally arranged. The fixing seat 5 is used to fix the bottom triangular structural member of the curved grid structure to the ground or mounting platform.

[0051] The mounting base 5 has multiple mounting holes 501, which are evenly distributed on the mounting base 5 and are perpendicular to the ground or mounting platform. The mounting holes 501 are used for fasteners (not shown in the figure) to pass through, so as to firmly fix the bottom triangular structure to the ground or mounting platform.

[0052] Optionally, the third fastener can be a fixing bolt or a ground nail.

[0053] The technical effects achieved by the above embodiments are as follows: the fixed base provides a stable support foundation for the curved grid structure, firmly fixing the bottom triangular structural members to the ground or mounting platform. It can effectively resist various external forces exerted on the structure during use, such as wind force, seismic force, and dynamic loads generated by personnel activities. By tightly connecting the structure to the ground, the risk of structural displacement, swaying, or overturning is reduced, ensuring the stability of the entire grid structure in complex environments and improving the safety and reliability of the structure.

[0054] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0055] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

Claims

1. A fabricated grid structure, characterized in that, It includes a node (1), a rod assembly, and a fixing member (6); multiple rod assemblies are interconnected to form a curved mesh structure, wherein every three rod assemblies are connected end to end to form a triangular structure, adjacent triangular structures share a rod assembly, and opposite triangular structures share a node (1), the node (1) is detachably set at the connection of the rod assembly, and the node (1) and the rod assembly are connected by the fixing member (6).

2. The prefabricated space truss structure according to claim 1, characterized in that, The node (1) includes a body (101) and a connecting plate (102). Several connecting plates (102) are arranged around the axis of the body (101), and the connecting plate (102) protrudes outward at least a portion along the body (101). The connecting plate (102) is provided with a first mounting hole (103), and the end of the rod assembly is provided with a matching second mounting hole (201). The first fixing member (6) passes through the first mounting hole (103) and the second mounting hole (201), so that the connecting plate (102) and the rod assembly can be detachably connected.

3. The prefabricated space truss structure according to claim 2, characterized in that, The main body (101) is a hollow tubular structure.

4. The prefabricated space truss structure according to claim 2 or 3, characterized in that, The rod assembly includes timber (2), reinforcing steel plates (3), and a second fixing member (7). Two timbers (2) are arranged parallel to each other at intervals. The sidewalls of the two timbers (2) that are close to each other are provided with reinforcing steel plates (3) along their length. The reinforcing steel plates (3) are fixed to the sidewalls of the timbers (2) by self-tapping screws (4). The second fixing member (7) passes through the timbers (2) and the reinforcing steel plates (3), allowing the two timbers (2) to be detachably connected. The two reinforcing steel plates (3)... The side walls are fitted together, and the end of the reinforcing steel sheet (3) is provided with mounting hole three (301). The mounting hole three (301) and the mounting hole two (201) are coaxially arranged. The connecting plate (102) is clamped between the two reinforcing steel sheets (3). The fixing member one (6) passes through the mounting hole one (103), mounting hole two (201) and mounting hole three (301), so that the connecting plate (102) and the timber (2) and the reinforcing steel sheet (3) can be detachably connected.

5. A prefabricated space frame structure according to claim 4, characterized in that, The first mounting hole (103) and the third mounting hole (301) are coaxially arranged.

6. The prefabricated space truss structure according to claim 1, wherein, It also includes a fixing seat (5), which is provided below the node (1) where the triangular structural member contacts the ground or mounting platform. The fixing seat (5) is horizontally arranged with the ground or mounting platform. The fixing seat (5) is used to fix the bottom triangular structural member of the curved mesh structure to the ground or mounting platform.

7. The prefabricated space truss structure according to claim 6, characterized in that The fixed base (5) is provided with a plurality of mounting holes (501), which are evenly distributed on the fixed base (5) and are set perpendicular to the ground or mounting platform.

8. The prefabricated space truss structure according to claim 2, wherein, The connecting plate (102) is a strip-shaped plate structure.

9. The prefabricated space truss structure according to claim 1, wherein, The triangular structural component is an equilateral or isosceles triangle.

10. The prefabricated space truss structure according to claim 4, characterized in that, The reinforcing steel sheet (3) has a cross-sectional area smaller than that of the batten (2). The reinforcing steel sheet (3) has a cross-sectional area smaller than that of the batten (2).