Building frame connecting piece of steel structure

Abstract

The utility model discloses a building frame connecting piece of a steel structure, which comprises a plurality of frame steel pipes which are arranged in a crisscross mode, and the intersection positions of the plurality of frame steel pipes are fixedly connected through two fixing sleeve pieces. Connecting plates are arranged at the left ends and the right ends of the multiple fixing sleeve pieces on the front side and the upper ends and the lower ends of the multiple fixing sleeve pieces on the rear side correspondingly, the fixing sleeve pieces on the front side and the fixing sleeve pieces on the rear side are connected through four connecting threaded sleeves and four connecting bolts at the four corners, and the fixing sleeve pieces on the front side and the fixing sleeve pieces on the rear side are arranged in a crossed mode. The connecting threaded sleeve and the connecting bolt are connected in a double-layer threaded mode, namely, the inner-layer threaded hole of the connecting bolt is in primary threaded connection with the outer-layer threaded hole of the connecting threaded sleeve, and the connecting stud is in secondary threaded connection with the inner-layer threaded hole. By means of the design, the firmness of connection is enhanced, the torque bearing capacity of the connecting piece is improved, the thread loosening phenomenon is effectively prevented, and the stability of the structure when bearing a large load is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field related to construction, and in particular relates to a building frame connector of a steel structure. Background Art

[0002] In modern buildings and engineering structures, steel pipes are one of the main structural materials, and the stability and reliability of their connections are crucial to ensuring the safety of the entire structure. Traditional steel pipe connection methods, such as welding and bolting, can meet structural requirements under certain conditions. However, these connection methods may exhibit shortcomings in complex environments and high load conditions. For example, welding may introduce stress concentration, affecting structural integrity; bolted connections are prone to loosening under long-term stress or vibration, reducing structural stability. Therefore, developing a new type of steel pipe connector that can improve the stability and reliability of the connection point has become an important research direction in the fields of construction and engineering.

[0003] In recent years, advances in materials science and structural engineering have led to the emergence of innovative steel pipe connection technologies designed to address these challenges. These technologies typically include improved fixing kits, elastic clamping systems, and enhanced threaded connection mechanisms to improve connection strength and structural stability. For example, by using fixing kits at steel pipe intersections, combined with elastic clamping sliders and springs, the steel pipes can be effectively secured while reducing the risk of loosening due to vibration or external forces. Furthermore, the use of a double-threaded connection design can enhance the connection's robustness and torque-carrying capacity, effectively preventing thread slippage and ensuring structural stability under heavy loads.

[0004] However, existing technologies still have limitations, such as the potential performance degradation of the elastic clamping system at extreme temperatures, the high complexity of the double-threaded connection mechanism in processing and installation, and the adaptability of the overall structure. Therefore, developing a new type of steel pipe connector that combines the technical advantages of multi-directional cross-fixation, elastic clamping, and a double-threaded connection mechanism while overcoming the limitations of existing technologies is of great significance for improving the stability and safety of buildings and engineering structures.

[0005] To sum up, the background technology of this patent aims to address the limitations of existing steel pipe connection technology and propose an innovative steel pipe connector design. This design achieves efficient, stable and reliable fixation of steel pipe connection points by integrating technical points such as multi-directional cross-fixing structure, elastic clamping system, and double-layer threaded connection mechanism. It is suitable for a variety of buildings and engineering structures, especially in situations where high stability and bearing capacity are required. Utility Model Content

[0006] The purpose of the utility model is to provide a steel structure building frame connector to solve the problem that the traditional building frame is prone to loosening and reduces structural stability proposed in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a steel structure building frame connector, including a frame steel pipe, wherein a plurality of the frame steel pipes are provided and arranged in a cross shape, and the intersections of the plurality of frame steel pipes are fixedly connected by two fixing kits, and the left and right ends of the plurality of fixing kits on the front side and the upper and lower ends of the plurality of fixing kits on the rear side are provided with connecting plates, and are connected to each other by four connecting screw sleeves and four connecting bolts at the four corners.

[0008] Preferably, the fixing kit on the front side and the fixing kit on the rear side are arranged in a cross shape and wrapped around the outside of the two intersecting frame steel pipes.

[0009] Preferably, the plurality of connecting screw sleeves are all passed through the interior of the connecting plates on the left and right sides of the front fixing kit, and are also passed through the interior of the upper and lower sides of the front end of the connecting plate.

[0010] Preferably, the plurality of connecting bolts are passed through the interior of the connecting plates on the upper and lower sides of the rear fixing kit, and are passed through the interior of the left and right sides of the rear end of the connecting plate.

[0011] Preferably, the fixing kit is provided with a plurality of telescopic slots inside the inner wall near one end of the frame steel pipe, the plurality of telescopic slots are all slidably connected with clamping sliders, and the plurality of clamping sliders are all tightly fitted on the outer wall of the frame steel pipe.

[0012] Preferably, the inner wall of the clamping slider away from the frame steel pipe is provided with multiple spring grooves, the multiple spring grooves are each provided with a clamping spring, and the clamping slider is elastically connected to the telescopic slide groove through the multiple clamping springs.

[0013] Preferably, an inner threaded hole is passed through the front end of the connecting bolt, an outer threaded hole is passed through the rear end of the connecting nut, and the connecting bolt is threadedly connected to the outer threaded hole.

[0014] Preferably, a connecting stud is fixedly connected to the center of the inner wall of the front end of the outer threaded hole, and the rear end of the connecting stud is flush with the rear end of the connecting screw sleeve and is threadedly connected to the inside of the inner threaded hole.

[0015] Compared with the prior art, the present invention provides a steel structure building frame connector with the following advantages:

[0016] 1. Multi-directional cross-fixing structure: By using fixing kits at multiple steel pipe intersections, a cross-cross structure is formed, which enhances the overall stability and bearing capacity of the structure.

[0017] 2. Elastic Clamping System: The fixing kit is designed with a telescopic slide and elastic clamping sliders. Clamping springs provide a tight fit and secondary clamping against the outer wall of the steel pipe. This design improves the strength and stability of the connection between the fixing kit and the steel pipe, reducing the risk of loosening due to vibration or external forces.

[0018] 3. Double-threaded connection mechanism: The connecting sleeve and the connecting bolt adopt a double-threaded connection design, which is a primary threaded connection between the inner threaded hole of the connecting bolt and the outer threaded hole of the connecting sleeve, and a secondary threaded connection between the connecting stud and the inner threaded hole. This design not only enhances the firmness of the connection, but also improves the torque bearing capacity of the connector, effectively prevents thread slippage, and ensures the stability of the structure under heavy loads.

[0019] 4. Multi-component coordinated fixing: The connecting plate and fixing kit, connecting screw sleeve and connecting bolt work together to form an integrated fixing system. This multi-component coordinated fixing design not only simplifies the construction process, but also improves the stability and safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the steel structure building frame connector of the present invention.

[0021] Figure 2 This is a schematic diagram of the connection structure of the fixing kit of the present invention.

[0022] Figure 3 For the utility model Figure 2 Enlarged schematic diagram of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the outer threaded hole connection structure of the utility model.

[0024] In the figure: 1. Frame steel pipe; 2. Fixing kit; 3. Connecting plate; 4. Connecting screw sleeve; 5. Connecting bolt; 6. Telescopic slide; 7. Clamping slider; 8. Spring slot; 9. Clamping spring; 10. Inner threaded hole; 11. Outer threaded hole; 12. Connecting stud. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The utility model provides Figure 1-Figure 4 The figure shows: a steel structure building frame connector, including a frame steel pipe 1, a plurality of frame steel pipes 1 are provided, and are arranged in a cross-shaped manner, and the intersections of the plurality of frame steel pipes 1 are fixedly connected by two fixing kits 2, and the left and right ends of the plurality of fixing kits 2 on the front side and the upper and lower ends of the plurality of fixing kits 2 on the rear side are provided with connecting plates 3, and are connected to each other through four connecting screw sleeves 4 and four connecting bolts 5 at the four corners, and the front fixing kit 2 and the rear fixing kit 2 are arranged in a cross-shaped manner and wrapped around the outside of the two intersecting frame steel pipes 1, and the plurality of connecting screw sleeves 4 are all passed through the left and right ends of the front fixing kit 2 The inside of the connecting plates 3 on the right sides, and pass through the upper and lower sides of the front end of the connecting plates 3, multiple connecting bolts 5 are passed through the connecting plates 3 on the upper and lower sides of the rear fixing kit 2, and pass through the left and right sides of the rear end of the connecting plate 3. The building frame is constructed by connecting multiple frame steel pipes 1 to each other, and the intersections of the multiple frame steel pipes 1 are fixed and connected to each other through two fixing kits 2, and are connected through the connecting plates 3 on both sides of the fixing kit 2, as well as the connecting screw sleeves 4 and connecting bolts 5 passing through the front and back of the connecting plates 3, so that the multiple frame steel pipes 1 can be stably connected to ensure the stability of the building frame.

[0027] Preferably, the fixing kit 2 is provided with a plurality of telescopic slide grooves 6 on the inner wall near one end of the frame steel pipe 1, and the plurality of telescopic slide grooves 6 are slidably connected with clamping sliders 7, and the plurality of clamping sliders 7 are tightly fitted on the outer wall of the frame steel pipe 1, and the clamping slider 7 is provided with a plurality of spring grooves 8 on the inner wall away from the end of the frame steel pipe 1, and clamping springs 9 are arranged inside the plurality of spring grooves 8, and the clamping slider 7 is elastically connected to the inside of the telescopic slide groove 6 through a plurality of clamping springs 9. Since the clamping slider 7 is elastically connected to the inner wall of the end of the fixing kit 2 close to the frame steel pipe 1 through the clamping springs 9, and the clamping slider 7 is tightly fitted on the outer wall of the frame steel pipe 1, when the fixing kit 2 clamps and fixes the frame steel pipe 1, the clamping slider 7 can perform secondary clamping on the frame steel pipe 1 through the clamping springs 9, which can not only make the fixing of the fixing kit 2 to the frame steel pipe 1 more firmly, but also prevent the fixing kit 2 and the frame steel pipe 1 from loosening, further ensuring the firmness and stability of the building structure.

[0028] Preferably, an inner threaded hole 10 is passed through the front end of the connecting bolt 5 forward, and an outer threaded hole 11 is passed through the rear end of the connecting screw sleeve 4 backward, and the connecting bolt 5 is threadedly connected to the outer threaded hole 11, and a connecting stud 12 is fixedly connected at the center of the inner wall of the front end of the outer threaded hole 11, and the rear end of the connecting stud 12 is flush with the rear end of the connecting screw sleeve 4 and is threadedly connected to the inner threaded hole 10. In the process of connecting the two fixing kits 2, the connecting screw sleeve 4 and the connecting bolt 5 can be fixed once by the thread between the connecting bolt 5 and the inner wall of the outer threaded hole 11, and can be fixed twice by the thread between the connecting stud 12 and the inner wall of the inner threaded hole 10, so that the connection between the connecting screw sleeve 4 and the connecting bolt 5 is more firm and stable, preventing slippage, and the connecting thread between the connecting screw sleeve 4 and the connecting bolt 5 can bear a greater extrusion force, so that the connecting screw sleeve 4 and the connecting bolt 5 can withstand a greater torque, thereby increasing the connection torque between the two fixing kits 2 at the intersection of the frame steel pipe 1.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A steel structure building frame connector, characterized in that: The invention comprises a frame steel pipe (1), wherein the frame steel pipe (1) is provided in plurality and arranged in a cross-shaped manner, wherein the intersections of the plurality of frame steel pipes (1) are fixedly connected by two fixing kits (2), and the left and right ends of the plurality of fixing kits (2) on the front side and the upper and lower ends of the plurality of fixing kits (2) on the rear side are provided with connecting plates (3), and are connected to each other by four connecting screw sleeves (4) and four connecting bolts (5) at the four corners.

2. A steel structure building frame connector according to claim 1, characterized in that: The fixing kit (2) on the front side and the fixing kit (2) on the rear side are arranged in a cross-like manner and wrapped around the outside of the two intersecting frame steel pipes (1).

3. The steel structure building frame connector according to claim 2, characterized in that: The plurality of connecting screw sleeves (4) are all passed through the interior of the connecting plates (3) on the left and right sides of the front fixing kit (2) and are also passed through the interior of the upper and lower sides of the front end of the connecting plate (3).

4. A steel structure building frame connector according to claim 3, characterized in that: The plurality of connecting bolts (5) are all passed through the interior of the connecting plate (3) on the upper and lower sides of the rear fixing kit (2) and are also passed through the interior of the left and right sides of the rear end of the connecting plate (3).

5. The steel structure building frame connector according to claim 4, characterized in that: The fixing kit (2) is provided with a plurality of telescopic sliding grooves (6) on the inner wall of one end of the frame steel pipe (1), and the interiors of the plurality of telescopic sliding grooves (6) are all slidably connected with clamping sliders (7), and the plurality of clamping sliders (7) are all tightly fitted on the outer wall of the frame steel pipe (1).

6. The steel structure building frame connector according to claim 5, characterized in that: The inner wall of the clamping slide block (7) away from the frame steel pipe (1) is provided with a plurality of spring grooves (8), and the plurality of spring grooves (8) are provided with clamping springs (9). The clamping slide block (7) is elastically connected to the inside of the telescopic slide groove (6) through the plurality of clamping springs (9).

7. The steel structure building frame connector according to claim 4, characterized in that: An inner threaded hole (10) is passed through the front end of the connecting bolt (5) and an outer threaded hole (11) is passed through the rear end of the connecting screw sleeve (4) and the connecting bolt (5) is threadedly connected to the outer threaded hole (11).

8. The steel structure building frame connector according to claim 7, characterized in that: A connecting stud (12) is fixedly connected to the center of the inner wall of the front end of the outer threaded hole (11), and the rear end of the connecting stud (12) is flush with the rear end of the connecting screw sleeve (4) and is threadedly connected to the inside of the inner threaded hole (10).

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