Prefabricated building steel structure connecting joint

Abstract

The utility model discloses an assembly type building steel structure connecting joint, it includes pedestal, positioning module, adjusting assembly and locking device. Positioning module realizes preliminary positioning through the cooperation of guide column and adjusting assembly, and adjusting assembly utilizes rotating handle drive sleeve and moves along guide column to accurate adjustment position, and locking device fixes steel structure component through clamping block and elastic gasket. The stability is reinforced and the noise is reduced to base bottom recess and rubber coating, and the coaxiality is ensured to positioning plate through -hole inlaying metal lining. The application can improve the connecting precision, simplify the operation process, improve construction efficiency, and be applicable to large -scale assembly type building engineering.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a connection node for prefabricated building steel structure. Background Technology

[0002] In the field of prefabricated buildings, the design and construction of steel structure connection nodes play a crucial role in the stability and installation efficiency of the overall structure. Because prefabricated buildings require rapid on-site assembly, steel structure connection nodes are typically fixed using bolts or welding. However, in actual construction, dimensional deviations of steel structure components and limitations of on-site operating space can lead to inaccurate node connections, thus affecting the stability of the overall structure. Furthermore, traditional connection methods involve cumbersome bolt tightening or welding procedures, requiring construction workers to spend considerable time adjusting and operating, resulting in low construction efficiency. Simultaneously, as project scale expands, the number of connection nodes increases significantly, further increasing construction difficulty and workload. Therefore, designing a steel structure connection node that can improve connection accuracy, simplify operating procedures, and enhance construction efficiency has become an urgent problem to be solved. Utility Model Content

[0003] The purpose of this utility model is to provide a connection node for prefabricated building steel structures, which solves the problems mentioned in the background art.

[0004] This utility model is implemented as follows: a prefabricated building steel structure connection node, which mainly consists of the following components: a base, a positioning module disposed on the base, an adjustment component installed on the positioning module, and a locking device fixed on the adjustment component. The base, as the main structure, is used to support and connect adjacent steel structure components. The positioning module and the adjustment component are installed in a nested manner, and the locking device is used to finally fix the steel structure components after adjustment.

[0005] A further technical solution of this utility model is as follows: the positioning module includes a horizontally extending positioning plate and a guide post perpendicular to the positioning plate. The outer surface of the guide post is provided with a spiral groove, and the positioning plate has multiple through holes, the positions of which correspond to the mounting holes of the steel structure components to be connected. The guide post engages with the internal thread of the adjusting component through the spiral groove to form an adjustable axial displacement structure, thereby achieving the initial positioning of the steel structure components.

[0006] A further technical solution of this utility model is as follows: the adjusting assembly includes a sleeve and a driving mechanism disposed inside the sleeve. The inner wall of the sleeve is provided with an internal thread that matches the spiral groove of the guide post. The driving mechanism consists of a rotating handle and a transmission gear. The rotating handle drives the sleeve to move along the spiral groove of the guide post through the transmission gear. By operating the rotating handle, the axial position of the sleeve along the guide post can be precisely adjusted, thereby changing the relative distance between the steel structure components.

[0007] A further technical solution of this utility model is as follows: the locking device includes a clamping block and an elastic washer disposed at the bottom of the clamping block. The top of the clamping block is provided with a threaded hole, and a fastening bolt is disposed in the threaded hole. The surface of the elastic washer is provided with anti-slip protrusions to increase the friction between the contact surface and the steel structure component. After the steel structure component is adjusted to a suitable position by the adjusting assembly, the clamping block is pressed against the steel structure component by tightening the fastening bolt, thereby completing the final fixation.

[0008] A further technical solution of this utility model is: the bottom of the base is provided with a groove, the shape of which matches the cross-sectional profile of the steel structure component, to restrict the horizontal movement of the steel structure component. The inner wall of the groove is provided with a rubber coating, the thickness of which is 1-2 mm, which can effectively absorb vibration and reduce noise generated during installation.

[0009] A further technical solution of this utility model is: a metal bushing is embedded in the through hole of the positioning plate, and the inner diameter of the metal bushing is slightly larger than the diameter of the mounting hole of the steel structure component, ensuring good coaxiality between the mounting hole and the through hole of the steel structure component. The end of the metal bushing is chamfered to facilitate the quick insertion and alignment of the steel structure component.

[0010] A further technical solution of this utility model is: the outer surface of the rotary handle is provided with anti-slip texture, which is distributed in a wave shape to improve the feel and stability during operation. One end of the rotary handle is provided with a scale, which is marked with the scale value corresponding to the sleeve displacement, so that construction personnel can accurately adjust the position of the steel structure components according to actual needs.

[0011] A further technical solution of this utility model is: an observation window made of transparent material is provided on the side of the clamping block for real-time monitoring of the installation status of the steel structure components. A sealing ring is provided at the edge of the observation window to prevent dust or impurities from entering the locking device and affecting its normal operation.

[0012] The beneficial effects of this utility model are as follows: This utility model's prefabricated building steel structure connection node, through the synergistic action of the positioning module and adjustment components, achieves precise positioning and rapid adjustment of steel structure components, significantly improving connection accuracy. The groove design of the base, combined with the rubber coating, not only enhances the overall structural stability but also effectively reduces vibration and noise during installation. The elastic pads and anti-slip protrusions of the locking device further enhance the fixing effect, preventing loosening caused by external factors. Furthermore, the dial design of the rotating handle makes the adjustment process more intuitive and efficient, significantly shortening construction time. In summary, this utility model has significant advantages in improving connection accuracy, simplifying operation procedures, and increasing construction efficiency, making it suitable for large-scale prefabricated building projects. Attached Figure Description Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partially enlarged view of the present invention; Figure 3 This is a side view of the present invention.

[0013] The attached figures are labeled as follows: 1. Base; 2. Positioning module; 3. Adjustment component; 4. Locking device; 5. Guide column; 6. Sleeve; 7. Rotating handle; 8. Clamping block; 9. Elastic gasket; 10. Fastening bolt; 11. Observation window. Detailed Implementation A specific embodiment of the prefabricated building steel structure connection node of this utility model is described in conjunction with the appendix. Figure 1 To be continued Figure 3 Please provide a detailed explanation. For example... Figure 1 As shown, the connection node mainly consists of a base 1, a positioning module 2, an adjustment component 3, and a locking device 4. The components are assembled through nesting, threaded connection, or fixed installation, and work together to achieve precise positioning and final fixation of the steel structure components.

[0014] The base 1, serving as the main structure of the entire connection node, has a groove at its bottom. The shape of the groove matches the cross-sectional profile of the steel structural member to be connected, thus restricting the horizontal movement of the steel structural member. The inner wall of the groove is coated with a 1-2 mm thick rubber coating, preferably made of highly elastic natural rubber, which absorbs vibration and reduces noise during installation. A positioning module 2 is located at the top of the base 1. The positioning module 2 includes a horizontally extending positioning plate and a guide post 5 perpendicular to the positioning plate. The outer surface of the guide post 5 is machined with a spiral groove with a pitch of 2 mm to ensure high precision during adjustment. Multiple through holes are formed on the positioning plate, their positions designed according to the mounting hole positions of the steel structural member to be connected. Metal bushings are embedded within the through holes, with an inner diameter slightly larger than the diameter of the mounting hole of the steel structural member for easy insertion and alignment. The ends of the metal bushings are chamfered at a 45° angle for quick insertion of the steel structural member.

[0015] like Figure 2 As shown, the guide post 5 of the positioning module 2 is installed with the adjustment component 3 via a threaded connection. The adjustment component 3 includes a sleeve 6 and a drive mechanism disposed inside the sleeve 6. The inner wall of the sleeve 6 is provided with an internal thread that matches the spiral groove of the guide post 5. The pitch of the internal thread is the same as that of the spiral groove, both being 2 mm, thus forming an adjustable axial displacement structure. The drive mechanism consists of a rotating handle 7 and a transmission gear. One end of the rotating handle 7 is fixed to the transmission gear via a key connection, and the transmission gear meshes with the internal thread of the sleeve 6. When the operator operates the rotating handle 7, the transmission gear drives the sleeve 6 to move along the spiral groove of the guide post 5, thereby achieving precise adjustment of the relative distance between the steel structure components. The outer surface of the rotating handle 7 is provided with a wavy anti-slip texture with a depth of 0.5 mm, which can improve the feel and stability during operation. In addition, one end of the rotating handle 7 is provided with a dial, which is marked with the scale value corresponding to the displacement of the sleeve 6. The accuracy of the scale value is 0.1 mm, which facilitates the construction personnel to accurately adjust the position of the steel structure components according to actual needs.

[0016] like Figure 3As shown, a locking device 4 is fixed to the top of the adjusting assembly 3. The locking device 4 includes a clamping block 8 and an elastic washer 9 located at the bottom of the clamping block 8. The top of the clamping block 8 has a threaded hole, into which a fastening bolt 10 is fitted. The fastening bolt 10 has an M10 thread. When the fastening bolt 10 is tightened, the clamping block 8 presses down on the steel structure component, thus completing the final fixation. The elastic washer 9 is made of polyurethane, and its surface has anti-slip protrusions with a height of 1 mm, which increases the friction with the contact surface of the steel structure component and prevents loosening due to external vibration. An observation window 11 is provided on the side of the clamping block 8. The observation window 11 is made of transparent material, preferably tempered glass, for real-time monitoring of the installation status of the steel structure component. A sealing ring is provided at the edge of the observation window 11. The sealing ring is made of silicone and is 2 mm thick, which effectively prevents dust or impurities from entering the locking device 4 and affecting its normal operation.

[0017] In practical applications, firstly, the groove of the base 1 is aligned with the cross-sectional profile of the steel structure component to be connected, thus confining the steel structure component within the groove. Then, the mounting hole of the steel structure component is aligned with the through hole of the positioning module 2, and the chamfered metal bushing is used to guide its quick insertion and initial alignment. Next, by rotating the rotating handle 7 of the adjusting assembly 3, the transmission gear drives the sleeve 6 to move along the spiral groove of the guide post 5, adjusting the relative distance between the steel structure components until the required dimensions are achieved. During this process, the construction personnel can read the displacement of the sleeve 6 through the dial on the rotating handle 7 to ensure the accuracy of the adjustment. After adjustment, the clamping block 8 is pressed against the steel structure component using the fastening bolts 10 of the locking device 4, and the anti-slip protrusions of the elastic pad 9 contact the steel structure component, further enhancing the fixing effect. Finally, the installation status of the steel structure component is checked through the observation window 11 of the locking device 4 to ensure correct installation and complete the entire connection process.

[0018] The groove design of the base 1, combined with the rubber coating, effectively absorbs vibration and reduces noise during installation. Meanwhile, the through hole of the positioning module 2 is fitted with a metal bushing, ensuring good coaxiality between the mounting hole and the through hole of the steel structure component. The spiral groove and internal thread of the adjusting component 3 make the adjustment process smoother and more precise, while the elastic pad 9 and anti-slip protrusion of the locking device 4 significantly improve the fixing effect. Furthermore, the anti-slip texture and dial design of the rotating handle 7 improve the convenience and intuitiveness of operation, greatly shortening construction time. To better enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below with reference to a specific application scenario.

[0019] In actual construction, the groove of base 1 is first aligned with the cross-sectional contour of the steel structure component to be connected, and then embedded into the groove. Because the shape of the groove at the bottom of base 1 matches the cross-section of the steel structure component, and the inner wall of the groove is coated with a 1-2 mm thick high-elasticity natural rubber coating, it effectively restricts the horizontal movement of the steel structure component and absorbs vibrations caused by installation operations or the external environment, thereby reducing noise generation. This design not only improves the overall stability of the structure but also improves the operating environment at the construction site.

[0020] Subsequently, the mounting holes of the steel structure component are aligned with the through holes of positioning module 2. A metal bushing is embedded in the through hole, its inner diameter being slightly larger than the diameter of the mounting hole in the steel structure component, and the end of the metal bushing has a 45° chamfer for easy insertion and initial alignment. The design of the metal bushing ensures good coaxiality between the mounting holes and the through holes of the steel structure component, thereby avoiding installation errors caused by dimensional deviations. Through this design, the steel structure component can be initially positioned in a short time, significantly improving construction efficiency.

[0021] Next, by rotating the handle 7 of the adjusting assembly 3, the transmission gear drives the sleeve 6 to move along the spiral groove of the guide post 5, thereby adjusting the relative distance between the steel structure components. The mating structure between the spiral groove of the guide post 5 and the internal thread of the sleeve 6 has a pitch of 2 mm, enabling precise axial displacement adjustment. The outer surface of the rotating handle 7 is provided with a wavy anti-slip texture with a depth of 0.5 mm, which improves the feel and stability during operation. In addition, one end of the rotating handle 7 is equipped with a scale with a scale accuracy of 0.1 mm. Construction personnel can visually read the displacement of the sleeve 6 through the scale, thereby accurately adjusting the position of the steel structure components to the design requirements. This adjustment method not only simplifies the operation process but also significantly improves the accuracy and efficiency of the adjustment.

[0022] After the relative positions of the steel structural components are adjusted, the locking device 4 is used for final fixing. The clamping block 8 of the locking device 4 presses the steel structural components downwards via the fastening bolts 10, and the elastic pad 9 at the bottom of the clamping block 8 contacts the steel structural components. The elastic pad 9 is made of polyurethane material, and its surface has anti-slip protrusions with a height of 1 mm, which increases the friction between the contact surface and the steel structural components, preventing loosening due to external vibration. This design significantly enhances the fixing effect, ensuring the stability of the connection joint during long-term use.

[0023] Finally, the installation status of the steel structure components is checked through the observation window 11 on the side of the clamping block 8. The observation window 11 is made of tempered glass, is transparent and durable, and allows for real-time monitoring of the installation. The edges of the observation window 11 are equipped with 2mm thick silicone sealing rings, which effectively prevent dust or impurities from entering the locking device 4, thus ensuring its normal working performance. This design allows construction personnel to quickly confirm whether the installation meets the requirements and ensures that the entire connection process is error-free.

[0024] In summary, in the specific application scenarios described above, the groove design of the base 1, combined with the rubber coating, effectively absorbs vibration and reduces noise. The through hole of the positioning module 2, with its embedded metal bushing, ensures good coaxiality between the mounting holes and the through hole of the steel structure component. The spiral groove and internal thread of the adjusting component 3 achieve smooth and precise adjustment, while the elastic pad 9 and anti-slip protrusion of the locking device 4 significantly improve the fixing effect. Furthermore, the anti-slip texture and dial design of the rotating handle 7 enhance the ease and intuitiveness of operation, greatly shortening construction time. These designs work together to solve the problems of insufficient connection accuracy, low construction efficiency, and cumbersome operation mentioned in the background technology, making it suitable for large-scale prefabricated building engineering applications.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel structure connection node for prefabricated buildings, characterized in that, The connection node mainly consists of a base (1), a positioning module (2) set on the base (1), an adjustment component (3) installed on the positioning module (2), and a locking device (4) fixed on the adjustment component (3); the positioning module (2) includes a positioning plate and a guide post (5), and the outer surface of the guide post (5) is provided with a spiral groove; the adjustment component (3) includes a sleeve (6) and a driving mechanism, and the inner wall of the sleeve (6) is provided with an internal thread that matches the spiral groove of the guide post (5); the locking device (4) includes a clamping block (8) and an elastic washer (9), and the top of the clamping block (8) is provided with a threaded hole, and a fastening bolt (10) is provided in the threaded hole.

2. The prefabricated building steel structure connection node according to claim 1, characterized in that: The base (1) has a groove at its bottom, the shape of which matches the cross-sectional profile of the steel structure component, and the inner wall of the groove is provided with a rubber coating with a thickness of 1 mm to 2 mm.

3. A prefabricated building steel structure connection node according to claim 1, characterized in that: The positioning module (2) has multiple through holes on its positioning plate, and a metal bushing is embedded in the through hole. The end of the metal bushing is chamfered, and the chamfer angle is 45 degrees.

4. A prefabricated building steel structure connection node according to claim 1, characterized in that: The driving mechanism of the adjustment component (3) consists of a rotating handle (7) and a transmission gear. The rotating handle (7) meshes with the internal thread of the sleeve (6) through the transmission gear. One end of the rotating handle (7) is provided with a scale, and the accuracy of the scale is 0.1 mm.

5. A prefabricated building steel structure connection node according to claim 1, characterized in that: The surface of the elastic pad (9) of the locking device (4) is provided with anti-slip protrusions, the height of which is 1 mm. The side of the clamping block (8) is provided with an observation window (11), which is made of transparent material and has a sealing ring with a thickness of 2 mm at the edge.

6. A prefabricated building steel structure connection node according to claim 1, characterized in that: The pitch of the spiral groove of the guide post (5) is 2 mm, and the pitch of the internal thread of the sleeve (6) is 2 mm.

7. A prefabricated building steel structure connection node according to claim 4, characterized in that: The outer surface of the rotating handle (7) is provided with anti-slip texture, the depth of the anti-slip texture is 0.5 mm, and the anti-slip texture is distributed in a wave shape.

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