A prefabricated steel structure for construction sites

Abstract

This utility model relates to the field of building construction technology, and in particular to a prefabricated steel structure for construction sites, including a vertical beam. Connecting bases are installed in the inner cavities of both sides of the vertical beam. Each connecting base includes a base plate, with a limiting groove and a first threaded groove respectively formed on the outer side of the base plate. A flange is installed on the outer side of the base plate, and a crossbeam body is welded to the outer side of the flange. According to the installation height requirements, the base plate is pushed upwards, and a fourth bolt passes through the base plate and is screwed into the corresponding second threaded groove to fix the base plate. The base plate on the other side is pushed to the corresponding height for fixing. The flange on the crossbeam body contacts and fits against the base plate, and the second and third bolts are tightened one by one for fixation. This allows for adjustment of the installation height of the crossbeam bodies on both sides according to the actual installation situation to meet different installation height requirements.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a prefabricated steel structure for construction sites. Background Technology

[0002] Building construction is a key stage in engineering construction. Its core is to transform design drawings into physical buildings through technical means. Prefabricated steel structure buildings refer to buildings whose structural systems are mainly composed of steel components and are assembled on site using prefabricated components in a factory.

[0003] According to the search, the announcement number is CN220704748U, and the name is prefabricated beam and column steel structure for buildings. It includes columns, and the columns have several first threaded holes on both the left and right sides. Through research and analysis, it was found that although the steel structure is assembled with bolts, which is simple to operate, does not require welding, improves work efficiency, and is easy to disassemble and reuse, it still has the following defects to a certain extent.

[0004] For example, the installation position of the aforementioned steel structure beams is fixed and cannot be adjusted. Therefore, during actual installation, the beams on both sides of the vertical beam cannot be adjusted to different heights, requiring the creation of new mounting holes for fixing. This results in poor flexibility in actual use. Furthermore, the support structure on the beams may be installed at an angle during actual installation, but the aforementioned steel structure beams cannot be adjusted in angle; the support surface of the beams can only be installed horizontally, limiting their practical application and resulting in poor usability. To solve these technical problems, we have designed a prefabricated steel structure for on-site construction. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated steel structure for construction sites, which has the advantages that the height and angle of the crossbeams can be adjusted according to the actual situation, thereby increasing the scope of use, meeting different installation requirements, and improving practicality. It solves the problem that the installation height and angle of the steel structure crossbeams cannot be adjusted according to different installation conditions, resulting in a limited actual installation range and poor practical effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated steel structure for construction site use, comprising a vertical beam, with connecting bases installed in the inner cavities on both the left and right sides of the vertical beam. Each connecting base includes a base plate, with a limiting groove and a first threaded groove respectively opened on the outer side of the base plate. A flange is installed on the outer side of the base plate, and a crossbeam body is welded to the outer side of the flange. Reinforcing plates are installed around the outer perimeter of the flange. A first bolt is threaded between the reinforcing plate and the crossbeam body on the side of the reinforcing plate closest to the crossbeam body. A second bolt and a third bolt are slidably inserted into the outer side of the flange. A second threaded groove is opened on the inner side of both the left and right sides of the vertical beam. A fourth bolt is slidably inserted into the top and bottom of the outer side of the base plate.

[0007] Preferably, the vertical beam has limiting grooves on both the front and rear sides of the left and right inner cavities, and the limiting grooves have installation openings on the outer side of the bottom of the inner cavity. The top of the crossbeam body is fixedly connected to a supporting cross plate.

[0008] Preferably, limit sliders are welded to both the front and rear sides of the base plate, and the inner side of the fourth bolt extends into the inner cavity of the second threaded groove and is threadedly connected.

[0009] Preferably, the outer surface of the flange is provided with mounting holes, and the number of the first threaded groove and the mounting holes are both eight, and they are arranged at equal intervals.

[0010] Preferably, a third threaded groove is provided on the side of the crossbeam body near the flange, and the inner side of the first bolt extends into the inner cavity of the third threaded groove and is threadedly connected.

[0011] Preferably, there are four of each of the second and third bolts. The inner side of the third bolt penetrates the reinforcing plate, and the inner sides of both the second and third bolts extend into the inner cavity of the first threaded groove and are threaded together.

[0012] Preferably, there are several second threaded grooves arranged at equal intervals, and mounting grooves are provided at the top and bottom of the outer side of the base plate, and a limiting protrusion is fixedly connected to the inner side of the flange.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. Push the base plate upwards according to the installation height requirements. Screw the fourth bolt through the base plate into the corresponding second threaded groove to fix the base plate. Push the base plate on the other side to the corresponding height and fix it. The flange on the crossbeam body contacts and fits against the base plate. Tighten the second and third bolts one by one to fix it. This allows the installation height of the crossbeam body on both sides to be adjusted according to the actual installation situation to meet different installation heights of the crossbeam body.

[0015] 2. Before fixing the flange, rotate the crossbeam body to tilt it to the appropriate support angle, install the support structure on the surface of the crossbeam body, and adjust the installation angle of the crossbeam body to tilt the support surface to meet different installation requirements. This makes the installation range wider and the practical effect better. Attached Figure Description

[0016] Figure 1 This is an axonometric view of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the connecting base and the vertical beam of this utility model;

[0018] Figure 3 This is a side axonometric view of the crossbeam body and flange of this utility model;

[0019] Figure 4 This is a left axonometric view of the crossbeam body and flange of this utility model.

[0020] In the diagram: 1. Vertical beam; 2. Connecting base; 3. Horizontal beam body; 4. Fourth bolt; 5. Limiting groove; 6. Supporting horizontal plate; 7. Reinforcing plate; 8. Mounting opening; 9. Limiting slider; 10. Base plate; 11. Limiting groove; 12. First threaded groove; 13. Flange; 14. Second threaded groove; 15. First bolt; 16. Mounting hole; 17. Limiting protrusion; 18. Third threaded groove; 19. Third bolt; 20. Second bolt. Detailed Implementation

[0021] Please see Figures 1-4 A prefabricated steel structure for construction site use includes a vertical beam 1. Connecting bases 2 are installed in the inner cavities on both sides of the vertical beam 1. Each connecting base 2 includes a base plate 10. Limiting grooves 11 and first threaded grooves 12 are respectively formed on the outer side of the base plate 10. By setting the limiting grooves 11, a limiting protrusion 17 on the end face can be inserted into the flange 13 during installation, thus limiting the flange 13 and quickly aligning the mounting hole 16 with the first threaded groove 12. A flange 13 is installed on the outer side of the base plate 10, and a crossbeam body 3 is welded to the outer side of the flange 13. Reinforcing plates 7 are installed around the entire beam body 3. By setting the reinforcing plates 7, the beam body 3 can be supported and positioned around the entire beam body 3, making the installation between it and the flange 13 more secure. A first bolt 15 is threaded between the reinforcing plate 7 and the beam body 3 on the side close to the beam body 3. By setting the first bolt 15, the reinforcing plate 7 can be easily fixed to the surface of the beam body 3. A second bolt 20 and a third bolt 19 are slidably inserted into the outer side of the flange 13. A second threaded groove 14 is opened on the inner side of both the left and right sides of the vertical beam 1. A fourth bolt 4 is slidably inserted into the top and bottom of the outer side of the base plate 10.

[0022] Please see Figure 1 and Figure 2 Limiting grooves 5 are provided on the front and rear sides of the left and right inner cavities of the vertical beam 1. An installation opening 8 is provided on the outer side of the bottom of the inner cavity of the limiting groove 5. By setting the installation opening 8, the limiting sliders 9 on both sides of the base plate 10 can be easily installed into the limiting groove 5. A supporting horizontal plate 6 is fixedly connected to the top of the crossbeam body 3. By setting the supporting horizontal plate 6, the external supporting structure can be easily installed onto the crossbeam body 3.

[0023] Please see Figure 2 Limiting sliders 9 are welded on both the front and rear sides of the base plate 10. By setting the limiting sliders 9, the up and down movement of the base plate 10 can be limited. The inner side of the fourth bolt 4 extends into the inner cavity of the second threaded groove 14 and is threadedly connected.

[0024] Please see Figure 2 and Figure 4 The outer surface of the flange 13 is provided with mounting holes 16. There are eight first threaded grooves 12 and eight mounting holes 16, which are arranged at equal intervals.

[0025] Please see Figure 3 and Figure 4 The beam body 3 is provided with a third threaded groove 18 on one side near the flange 13. By providing the third threaded groove 18, the first bolt 15 can be screwed in to fix the reinforcing plate 7. The inner side of the first bolt 15 extends into the inner cavity of the third threaded groove 18 and is threadedly connected.

[0026] Please see Figure 2 and Figure 3 There are four second bolts 20 and four third bolts 19. The inner side of the third bolt 19 penetrates the reinforcing plate 7. The inner sides of the second bolt 20 and the third bolt 19 extend into the inner cavity of the first threaded groove 12 and are threadedly connected. By setting the third bolt 19, the other end of the reinforcing plate 7 can be fixedly installed while the flange 13 is fixed.

[0027] Please see Figure 1 and Figure 4 The number of second threaded grooves 14 is several and they are arranged at equal intervals. The top and bottom of the outer side of the base plate 10 are provided with mounting grooves. By setting the mounting grooves, the fourth bolt 4 can be easily fixed and installed. The inner side of the flange 13 is fixedly connected to the limiting protrusion plate 17.

[0028] During use, after the vertical beam 1 is installed and fixed, the installation height of the two horizontal beam bodies 3 may be inconsistent depending on the actual installation situation. In this case, insert the limiting sliders 9 on both sides into the limiting grooves 5 on both sides, and then push the base plate 10 upward to the corresponding position according to the installation height requirements. Then, pass the fourth bolt 4 through the base plate 10 and screw it into the corresponding second thread groove 14 with a tool. After tightening, the base plate 10 can be fixed and installed. Then, insert the base plate 10 on the other side into the other side of the vertical beam 1 through the above operation and push it to the corresponding height for fixed installation. Finally, remove the flange 13 on the horizontal beam body 3. The crossbeam body 3 is installed on the base plate 10 by tightening the second bolt 20 and the third bolt 19 one by one. This allows for adjustment of the installation height of the crossbeam body 3 on both sides according to the actual installation situation. When the support structure on the crossbeam body 3 needs to be installed at an angle, the crossbeam body 3 is rotated to tilt to an appropriate support angle before fixing the flange 13. Finally, the support structure can be installed on the surface of the crossbeam body 3. This allows the support surface to be tilted by adjusting the installation angle of the crossbeam body 3 to meet different installation requirements, thus expanding the range of applications and improving the practical effect.

[0029] In summary, this prefabricated steel structure for construction sites, through the coordinated use of vertical beam 1, connecting base 2, horizontal beam body 3, limiting slide groove 5, flange 13, second threaded groove 14, third bolt 19, and second bolt 20, solves the problem of the inability to adjust the installation height and angle of the steel structure horizontal beam according to different installation conditions, resulting in a limited actual installation range and poor practical effect.

Claims

1. A prefabricated steel structure for construction site use, comprising vertical beams (1), characterized in that: The vertical beam (1) has connecting bases (2) installed in the inner cavities on both sides. The connecting bases (2) include base plates (10). The outer side of the base plates (10) is provided with a limiting groove (11) and a first threaded groove (12). The outer side of the base plates (10) is provided with a flange (13). The outer side of the flange (13) is welded with a crossbeam body (3). The outer perimeter of the flange (13) is provided with reinforcing plates (7). The side of the reinforcing plates (7) close to the crossbeam body (3) is threaded with a first bolt (15). The outer side of the flange (13) is slidably inserted with a second bolt (20) and a third bolt (19). The inner side of both sides of the vertical beam (1) is provided with a second threaded groove (14). The top and bottom of the outer side of the base plates (10) are slidably inserted with a fourth bolt (4).

2. The prefabricated steel structure for on-site construction as described in claim 1, characterized in that: Limiting grooves (5) are provided on the front and rear sides of the inner cavity of the vertical beam (1). An installation opening (8) is provided on the outer side of the bottom of the inner cavity of the limiting groove (5). A supporting horizontal plate (6) is fixedly connected to the top of the crossbeam body (3).

3. A prefabricated steel structure for on-site construction as described in claim 1, characterized in that: Limiting sliders (9) are welded to both the front and rear sides of the base plate (10), and the inner side of the fourth bolt (4) extends into the inner cavity of the second threaded groove (14) and is threadedly connected.

4. A prefabricated steel structure for on-site construction as described in claim 1, characterized in that: The outer surface of the flange (13) is provided with mounting holes (16), and the number of the first threaded groove (12) and the mounting holes (16) are both eight, and they are arranged at equal intervals.

5. A prefabricated steel structure for on-site construction according to claim 1, characterized in that: The beam body (3) has a third threaded groove (18) on one side of the flange (13) around its perimeter. The inner side of the first bolt (15) extends into the inner cavity of the third threaded groove (18) and is threadedly connected.

6. A prefabricated steel structure for on-site construction according to claim 1, characterized in that: There are four of the second bolt (20) and the third bolt (19). The inner side of the third bolt (19) penetrates the reinforcing plate (7). The inner sides of the second bolt (20) and the third bolt (19) extend into the inner cavity of the first threaded groove (12) and are threaded together.

7. A prefabricated steel structure for on-site construction according to claim 1, characterized in that: The number of the second threaded grooves (14) is several and they are arranged at equal intervals. The top and bottom of the outer side of the base plate (10) are provided with mounting grooves. The inner side of the flange (13) is fixedly connected to the limiting protrusion plate (17).

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