A quick detachable modular steel structure
By combining the gate-shaped locking fastener with the grooved slot design, the problems of rapid assembly and disassembly and stability of modular steel structures are solved, enabling tool-free operation and efficient connection, and improving the applicability and flexibility of modular steel structures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-19
AI Technical Summary
Existing modular steel structure connection methods have shortcomings in terms of rapid assembly and disassembly, tool dependence, stability and flexibility, which affect their application in terms of high turnover efficiency and ease of on-site operation.
The lock features a gate-shaped fastener design, combining internal friction and grooved locking. It allows for quick assembly and disassembly through the interlocking of the column and beam. The gate-shaped structure of the fastener fits tightly against the inner wall of the column to generate friction, while the equidistant grooves on the beam provide adjustment capabilities, simplifying operation and enhancing stability.
It significantly improves the assembly and disassembly speed and ease of operation of modular steel structures, ensures the rigidity of connection nodes and the stability of the overall structure, protects the surface of components, extends the service life, reduces costs and expands the applicability of application scenarios.
Smart Images

Figure CN224379116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of modular steel structure technology, and specifically discloses a modular steel structure that can be quickly assembled and disassembled. Background Technology
[0002] Modular steel structures, with their significant advantages such as high standardization, ease of transportation, reusability, and convenient on-site installation, have been widely used in temporary buildings (such as exhibition booths, stages, and sheds), event facilities, warehouse racking, and some rapid construction fields. Compared to traditional welded or heavily bolted steel structure systems, the core of the modular design concept lies in achieving rapid assembly and disassembly of structures through prefabricated components and simplified connection methods, thereby improving construction efficiency, reducing labor costs and reliance on specialized skills, and meeting flexible and ever-changing usage needs.
[0003] However, existing modular steel structure connection technologies still have some shortcomings that urgently need to be addressed. While common plug-in or bolted connections are simpler than traditional welding, they still have limitations in achieving truly rapid, tool-free assembly and disassembly: First, the connection process often still requires auxiliary tools (such as wrenches and hammers) or a large number of fasteners, making the operation relatively cumbersome and time-consuming; second, disassembly may be difficult due to overly tight interlocking components or the need to remove a large number of bolts, easily damaging the surface coating or structure of the components, affecting their lifespan and aesthetics after repeated use; third, the overall stability and lateral displacement resistance of the assembled structure sometimes rely on complex connectors or mechanisms that are difficult to lock quickly; fourth, existing structures lack flexibility in easily adjusting beam spacing, often requiring the replacement of the entire component or complex adjustments. These factors restrict the further promotion and application of modular steel structures in scenarios requiring extremely high turnover efficiency and ease of on-site operation. Utility Model Content
[0004] This utility model proposes a modular steel structure that can be quickly assembled and disassembled. The door-shaped locking fastener design combines internal filling friction with groove positioning to ensure the rigidity of the connection nodes and the stability and displacement resistance of the overall structure. The equidistant grooves on the crossbeam provide an adjustable structure with strong adaptability.
[0005] This utility model is implemented as follows: a modular steel structure that can be quickly assembled and disassembled includes two vertically arranged columns, a crossbeam erected between the two columns, and locking fasteners.
[0006] The top of the column has a top opening, and the side has a through-hole interface. The two ends of the crossbeam are inserted into the interface, and the crossbeam has multiple grooves.
[0007] As a preferred embodiment of the modular steel structure of this utility model that can be quickly assembled and disassembled, the columns and beams are both hollow steel structures with rectangular cross-sections.
[0008] As a preferred embodiment of the modular steel structure of this utility model that can be quickly assembled and disassembled, the cross-section of the locking fastener is in the shape of a "door", and the length and width of the locking fastener match the inner length and width of the column.
[0009] As a preferred embodiment of this utility model of a modular steel structure that can be quickly assembled and disassembled, the top of the locking fastener is fixedly connected with a handle.
[0010] As a preferred embodiment of the modular steel structure of this invention that can be quickly assembled and disassembled, the top opening is a rectangular through slot.
[0011] As a preferred embodiment of this utility model of a modular steel structure that can be quickly assembled and disassembled, the dimensions of the insertion interface match the longitudinal section of the crossbeam.
[0012] As a preferred embodiment of the modular steel structure of this invention that can be quickly assembled and disassembled, the plurality of grooves are equidistantly distributed.
[0013] The beneficial effects of this utility model are:
[0014] This device significantly improves the assembly and disassembly speed and ease of operation of modular steel structures. The gate-shaped locking fastener design, through a combination of internal filling friction and groove positioning, ensures the rigidity of the connection nodes and the stability and displacement resistance of the overall structure. The equidistant grooves on the crossbeam provide an adjustable structure with strong adaptability. The plug-in and top-insertion locking methods maximize the protection of the component surface, avoid damage, and extend the service life. The structure has a clear principle, simplified components, and a high degree of standardization in processing and assembly. It not only reduces manufacturing and construction costs but also greatly expands its applicability in application scenarios that require rapid deployment and frequent adjustments. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is an exploded sectional view of the overall main view of this utility model;
[0018] Figure 3 This is a front view and sectional view of the overall assembly structure of this utility model;
[0019] Figure 4This is a three-dimensional structural diagram of the crossbeam of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the column of this utility model.
[0021] The markings in the diagram are: 1. Post; 2. Top opening; 3. Insertion port; 4. Crossbeam; 5. Groove; 6. Locking fastener; 7. Handle. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0023] Please see Figure 1-5 A modular steel structure that can be quickly assembled and disassembled includes two vertically arranged columns 1, a crossbeam 4 erected between the two columns 1, and fasteners 6.
[0024] The top of the column 1 is provided with a top opening 2, and the side is provided with an insertion interface 3 that passes through the column 1. The two ends of the crossbeam 4 are inserted into the insertion interface 3, and multiple grooves 5 are provided on the crossbeam 4.
[0025] In this embodiment: the rectangular top opening 2 and the through-type insertion interface 3 on the side of the column 1 are quickly inserted into the matching crossbeams 4 at both ends to achieve initial positioning. The equidistant grooves 5 on the crossbeams 4 provide adjustment points to facilitate the selection of the connection points between the crossbeams 4 and the column 1 as needed. The locking fastener 6, with a door-shaped cross section and dimensions matching the inner side of the column 1, is inserted vertically into the internal cavity of the column 1 through the top opening 2 and pressed down. The inner walls on both sides of its door-shaped structure are tightly fitted with the inner wall of the column 1 to generate friction. At the same time, its top crossbar will be stuck into the corresponding groove 5 at the end of the crossbeam 4 due to the pressing action, thereby forming a rigid filling inside the column 1 and directly locking the crossbeam 4, achieving a tool-free, fast and stable locking effect. The handle 7 fixed on the top of the locking fastener 6 greatly simplifies the insertion and removal operations.
[0026] As a technical optimization of this utility model, both the column 1 and the beam 4 are hollow steel structures with rectangular cross-sections.
[0027] In this embodiment, the column 1 and the beam 4 adopt a rectangular hollow section, which ensures the structural strength and stability of the components themselves. The rectangular section is conducive to uniform force transmission, and at the same time provides feasibility for the internal cavity (to accommodate the locking fastener 6) and the side insertion interface 3, and facilitates standardized production and nested transportation.
[0028] As a technical optimization of this utility model, the cross-section of the locking fastener 6 is in the shape of a "door", and the length and width of the locking fastener 6 match the inner length and width of the column 1.
[0029] In this embodiment, the locking fastener 6 is designed in the shape of a door, and its length and width are precisely matched with the length and width of the inner cavity of the column 1, ensuring that the locking fastener 6 can tightly fill the space of the inner cavity of the column 1 after insertion. The two side walls of its door shape generate a large area of contact friction with the inner wall of the column 1. This is the core mechanism to achieve strong resistance to lateral displacement and overall stability. At the same time, the matching size also ensures smooth insertion and accurate positioning.
[0030] As a technical optimization of this utility model, the top of the locking device 6 is fixedly connected with a handle 7.
[0031] In this embodiment, a handle 7 is fixedly connected to the top of the locking device 6. The handle 7 provides a force application point, allowing the operator to easily hold the device and perform pressing and lifting actions on the locking device 6 without tools, which significantly improves the convenience and efficiency of operation.
[0032] As a technical optimization of this utility model, the top opening 2 is a rectangular through groove.
[0033] In this embodiment: the top opening 2 is a rectangular through slot for inserting the locking fastener 6.
[0034] As a technical optimization of this utility model, the dimensions of the insertion interface 3 are matched with the longitudinal section of the crossbeam 4.
[0035] In this embodiment, the size of the insertion interface 3 is designed to match the longitudinal section of the crossbeam 4, ensuring that the end of the crossbeam 4 can be smoothly and accurately inserted into the insertion interface 3, achieving initial positioning and support, avoiding shaking, and providing a good foundation for the subsequent locking of the fastener 6.
[0036] As a technical optimization of this utility model, multiple grooves 5 are distributed at equal intervals.
[0037] In this embodiment, the multiple grooves 5 on the crossbeam 4 are distributed at equal intervals. This equal distribution provides standardized and regular adjustment points, making it easy to find the corresponding locking point (locking piece 6 snaps into groove 5) when the column 1 is installed at different positions on the crossbeam 4, which greatly enhances the flexible adjustment capability of the structure.
[0038] The working principle and usage process of this utility model are as follows: The rectangular top opening 2 and the through-type insertion interface 3 on the side of the column 1 are quickly inserted into the matching crossbeams 4 at both ends to achieve initial positioning. The equidistant grooves 5 on the crossbeams 4 provide adjustment points, making it easy to select the connection point between the crossbeams 4 and the column 1 according to the situation. The locking fastener 6 with a door-shaped cross section and matching size to the inner side of the column 1 is inserted vertically into the internal cavity of the column 1 through the top opening 2 and pressed down. The inner walls on both sides of its door-shaped structure are tightly fitted with the inner wall of the column 1 to generate friction. At the same time, its top crossbar will be stuck into the corresponding groove 5 at the end of the crossbeam 4 due to the pressing action, thereby forming a rigid filling inside the column 1 and directly locking the crossbeam 4, achieving a tool-free, fast and stable locking effect. The handle 7 fixed on the top of the locking fastener 6 greatly simplifies the insertion and removal operation.
[0039] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A modular steel structure that can be quickly disassembled, characterized by: It includes two vertically set columns (1), a crossbeam (4) erected between the two columns (1), and a locking device (6); The top of the column (1) is provided with a top opening (2), and the side is provided with an insertion interface (3) that penetrates the column (1). The two ends of the crossbeam (4) are inserted into the insertion interface (3), and multiple grooves (5) are provided on the crossbeam (4).
2. The quick detachable modular steel structure as claimed in claim 1, wherein: The columns (1) and beams (4) are both hollow steel structures with rectangular cross sections.
3. The quick detachable modular steel structure as claimed in claim 1, wherein: The cross-section of the locking fastener (6) is in the shape of a "door", and the length and width of the locking fastener (6) match the inner length and width of the column (1).
4. A modular steel structure that can be quickly assembled and disassembled according to claim 1, characterized in that: A handle (7) is fixedly connected to the top of the locking fastener (6).
5. A modular steel structure capable of quick assembly and disassembly according to claim 1, characterized in that: The top opening (2) is a rectangular through groove.
6. A modular steel structure capable of quick assembly and disassembly according to claim 1, characterized in that: The dimensions of the insertion interface (3) match the longitudinal section of the crossbeam (4).
7. A modular steel structure that can be quickly assembled and disassembled according to claim 2, characterized in that: The multiple grooves (5) are equidistantly distributed.