Limiting device of steel structure node component
By designing a cross-shaped fixing frame and a sliding hole limiting device, the problem of difficulty in fine-tuning steel structure node components after connection is solved, thereby improving flexibility and stability and adapting to different installation requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGYUN XINMAO STEEL STRUCTURE CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-05-12
AI Technical Summary
The existing steel structure node components are difficult to fine-tune after connection, resulting in poor flexibility of the device.
A limiting device is designed, comprising a cross-shaped fixing frame, a square tube, a sliding hole, and a sliding tube. The sliding hole and the sliding tube work together to limit the position of the sliding tube, and the connection with nuts and bolts enhances the flexibility of the device. The connection between the support rod and the fixing frame provides additional fixing methods to adapt to different installation requirements.
This allows for fine-tuning of steel structure node components after connection, increasing the flexibility and stability of the device and facilitating the connection and adjustment of the steel structure.
Smart Images

Figure CN224227979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure accessories technology, specifically to a limiting device for steel structure node components. Background Technology
[0002] Steel structures are the most industrialized type of structure. In use, they have advantages such as low cost and easy relocation. Therefore, most existing factory buildings are constructed using steel structures. During the construction of steel structures, a large number of nodes will appear. These nodes need to be connected by node components. Therefore, the quality of the node components directly affects the safety of the entire steel structure.
[0003] A safety-type steel structure node component with publication number CN217949319U has exhibited the following defects during use:
[0004] This utility model solves the problem that nuts are prone to loosening and detaching from the surface of bolts, causing loosening at the connection between node components and other components. However, in actual use, after the steel structure and node are connected, it is very difficult to make fine adjustments to the steel structure again, whether by welding or threaded connection. The device has poor flexibility. Therefore, we propose a limiting device for steel structure node components. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a limiting device for steel structure node components, which solves the problem that it is very difficult to make further fine adjustments to the steel structure after it has been connected to the node, whether by welding or threaded connection, during actual use.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A limiting device for a steel structure node component includes a fixed frame, which is a cross-shaped shell structure. Square tubes are fixedly installed on all four sides of the fixed frame. A sliding hole is opened on one side of the square tube. A sliding tube is sleeved inside the square tube. A threaded rod is fixedly installed on one side of the sliding tube. A nut is threaded onto the outer wall of the threaded rod.
[0008] Preferably, the top surface of the sliding tube has two first screw holes, and the internal threads of the first screw holes are connected to first bolts.
[0009] Preferably, a pad is fixedly installed on both the top and bottom surfaces of the sliding tube, and the pad is made of gel.
[0010] Preferably, a fixing block is fixedly installed on both sides of the square tube, and a second screw hole is opened on the top surface of the fixing block, and a second bolt is connected to the internal thread of the second screw hole.
[0011] Preferably, the top and bottom surfaces of the fixing frame are provided with connecting holes, and a support rod is provided inside the fixing frame, the support rod being connected to the two connecting holes.
[0012] Preferably, the top surface of the fixing frame is provided with two support blocks, and the top surface of the fixing frame is provided with a plurality of third screw holes, with two adjacent third screw holes forming a group. The bottom surface of the support blocks is provided with two fourth screw holes, and one side of the support blocks is provided with two fifth screw holes. The internal threads of the fourth screw holes are connected to third bolts, and the support blocks are fixedly installed on the top surface of the fixing frame by the third bolts. The internal threads of the fifth screw holes are connected to fourth bolts.
[0013] In summary, the present invention has the following main advantages:
[0014] 1. By setting sliding holes and using the design of sliding tubes, the sliding trajectory of the sliding tube inside the square tube can be restricted. At the same time, with the help of nuts, the position of the sliding tube can be limited when it is moved to a designated position. This ensures that the steel structure can still be finely adjusted after the sliding tube and the steel structure are fixed, making it more convenient to connect steel structures in actual use and increasing the flexibility of the device.
[0015] 2. By setting up support rods, the device can be fixed in a way that is inconvenient to install directly or does not conform to structural logic. The connection between the support rods and the fixed frame indirectly fixes the fixed frame. With the design of the fourth bolt, when the device needs to be fixed by the support rods, the relative position of the support rods and the fixed frame can be fixed by tightening the fourth bolts. On the one hand, the prism structure with a triangular cross section can increase the stability of the support rods and prevent them from tilting to the sides. On the other hand, it can ensure the stability of the fixed frame and prevent the support rods from sliding relative to the fixed frame when subjected to external forces. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the fixed frame structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the support block structure of this utility model;
[0019] Figure 4This is a schematic diagram of the sliding tube structure of this utility model.
[0020] Reference numerals: 1. Fixed frame; 2. Square tube; 3. Sliding hole; 4. Sliding tube; 5. Threaded rod; 6. Nut; 7. First screw hole; 8. First bolt; 9. Pad; 10. Fixed block; 11. Second screw hole; 12. Second bolt; 13. Connecting hole; 14. Support rod; 15. Support block; 16. Third screw hole; 17. Fourth screw hole; 18. Fifth screw hole; 19. Third bolt; 20. Fourth bolt. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] refer to Figures 1-4 A limiting device for steel structure node components includes a fixed frame 1, which is a cross-shaped shell structure. Square tubes 2 are fixedly installed on all four sides of the fixed frame 1. A sliding hole 3 is opened on one side of the square tube 2. A sliding tube 4 is sleeved inside the square tube 2. A threaded rod 5 is fixedly installed on one side of the sliding tube 4. A nut 6 is threadedly connected to the outer wall of the threaded rod 5. Through the design of the sliding hole 3 and the sliding tube 4, the sliding trajectory of the sliding tube 4 inside the square tube 2 can be limited. At the same time, in conjunction with the nut 6, the position of the sliding tube 4 can be limited when it moves to a designated position. This ensures that after the sliding tube 4 and the steel structure are fixed, the steel structure can still be finely adjusted, which is more convenient for the connection between steel structures in actual use and increases the flexibility of the device.
[0023] Two first screw holes 7 are formed on the top surface of the sliding tube 4. First bolts 8 are threaded into the internal threads of the first screw holes 7. The design of the first bolts 8 allows for the fixing of the steel structure inserted into the sliding tube 4 by tightening the first bolts 8, ensuring the normal use of this node component. Pads 9 are fixedly installed on both the top and bottom surfaces inside the sliding tube 4. The pads 9 are made of gel. The design of the pads 9 protects the parts of the sliding tube 4 that come into contact with the steel structure. The smooth and easily deformable nature of the gel reduces friction at the contact points inside the sliding tube 4, minimizing friction. To minimize wear and tear, fixing blocks 10 are fixedly installed on both sides of the square tube 2. The top surface of each fixing block 10 has a second screw hole 11, and a second bolt 12 is threaded into the second screw hole 11. The design of the second bolt 12 allows for direct fixing of the device to locations such as ceilings by aligning the second screw hole 11 with the fixing position and tightening the second bolt 12. The top and bottom surfaces of the fixing frame 1 both have connecting holes 13. A support rod 14 is installed inside the fixing frame 1, connecting the support rod 14 to the two connecting holes 13. The design of the support rod 14... The device can be fixed by fixing the support rod 14. When it is inconvenient to directly install the device or direct installation does not conform to the structural logic, the fixed frame 1 can be indirectly fixed through the connection between the support rod 14 and the fixed frame 1. The top surface of the fixed frame 1 is provided with two support blocks 15. The top surface of the fixed frame 1 is provided with several third screw holes 16. Two adjacent third screw holes 16 form a group. The bottom surface of the support block 15 is provided with two fourth screw holes 17. Two fifth screw holes 18 are provided on one side of the support block 15. The internal threads of the fourth screw holes 17 are connected to third bolts 19. 15 is fixedly installed on the top surface of the fixed frame 1 by the third bolt 19. The internal thread of the fifth screw hole 18 is connected to the fourth bolt 20. Through the design of the fourth bolt 20, when it is necessary to fix the device by the support rod 14, the relative position of the support rod 14 and the fixed frame 1 can be fixed by tightening the fourth bolt 20. On the one hand, the prism structure with a triangular cross section can increase the stability of the support rod 14 and prevent it from tilting to both sides. On the other hand, it can ensure the stability of the fixed frame 1 and prevent the support rod 14 from sliding relative to the fixed frame 1 after being subjected to external force.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A limiting device for a steel structure node component, comprising a fixing frame (1), characterized in that, The fixed frame (1) is a cross-shaped shell structure. Square tubes (2) are fixedly installed around the fixed frame (1). A sliding hole (3) is opened on one side of the square tube (2). A sliding tube (4) is sleeved inside the square tube (2). A threaded rod (5) is fixedly installed on one side of the sliding tube (4). A nut (6) is threadedly connected to the outer wall of the threaded rod (5).
2. The limiting device for a steel structure node component according to claim 1, characterized in that, The top surface of the sliding tube (4) has two first screw holes (7), and the first screw holes (7) are threaded with first bolts (8).
3. The limiting device for a steel structure node component according to claim 1, characterized in that, The sliding tube (4) has a pad (9) fixedly installed on its inner top and bottom surfaces. The pad (9) is made of gel.
4. The limiting device for a steel structure node component according to claim 1, characterized in that, Both sides of the square tube (2) are fixedly installed with fixing blocks (10). The top surface of the fixing block (10) is provided with a second screw hole (11), and the second screw hole (11) is internally threaded with a second bolt (12).
5. The limiting device for a steel structure node component according to claim 1, characterized in that, The top and bottom surfaces of the fixed frame (1) are provided with connection holes (13), and a support rod (14) is provided inside the fixed frame (1). The support rod (14) and the two connection holes (13) are connected together.
6. The limiting device for a steel structure node component according to claim 1, characterized in that, The top surface of the fixed frame (1) is provided with two support blocks (15). The top surface of the fixed frame (1) is provided with several third screw holes (16). Two adjacent third screw holes (16) form a group. The bottom surface of the support block (15) is provided with two fourth screw holes (17). The side of the support block (15) is provided with two fifth screw holes (18). The internal threads of the fourth screw hole (17) are connected with a third bolt (19). The support block (15) is fixedly installed on the top surface of the fixed frame (1) by the third bolt (19). The internal threads of the fifth screw hole (18) are connected with a fourth bolt (20).