An assembled large-span steel structure beam and a method of using the same

Abstract

This invention discloses a prefabricated large-span steel structure crossbeam and its usage method, relating to the field of steel structure beam technology. It includes two side beams, each with an installation cavity at its end and several reinforcing inner plates inside. An adjusting beam is slidably connected between the installation cavities on the two side beams. Both ends of the adjusting beam are equipped with fixing components for securing it to the side beams. This invention allows for adjustment of the extension length of the telescopic plates during use via the adjustable components. When the height difference between the two columns used to install the crossbeam is large, the telescopic plate on one side can be adjusted to compensate for the height error, thus preventing the crossbeam from tilting during installation. Simultaneous adjustment of the telescopic plates on both sides also allows for the raising and lowering of the side beams and the adjusting beam, enabling adjustments as needed during use and greatly increasing the flexibility during assembly.

Description

Technical Field

[0001] This invention relates to the field of steel structure beam technology, specifically to a prefabricated large-span steel structure beam and its application method. Background Technology

[0002] Steel structures are one of the main types of building structures. They are primarily composed of steel beams, columns, trusses, and other components made of shaped steel and steel plates. Steel beams, in particular, only need to be assembled into their required positions for use, significantly reducing construction time compared to concrete beams. Therefore, steel structure buildings are widely used.

[0003] The prior art CN112095917B proposes a prefabricated steel structure beam, including a mounting base, support rods, splicing kits, and strip beams. The support rods are installed on the mounting base by bolt connection, and the splicing kits are installed on the support rods. The strip beams are installed inside the splicing kits. This device can lift and lower the beams, saving time and cumbersome steps required for rework.

[0004] However, this device still has certain shortcomings in its use. In practical applications, steel structure beams generally need to be installed on two columns. However, errors are inevitable during the construction of the columns. When the height difference between the two columns is large, the installation of the beam will be tilted. When the distance difference between the two columns is large, the steel structure beam cannot be assembled and the columns must be dismantled and rebuilt. This not only wastes time and affects the construction period, but also causes a great waste of building materials. In order to address the above problems, we provide a prefabricated large-span steel structure beam and its usage method to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated large-span steel structure beam and its usage method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A prefabricated large-span steel structure crossbeam includes two side beams. The ends of the side beams are provided with mounting cavities. The side beams are also provided with several reinforcing inner plates. An adjusting beam is slidably connected between the mounting cavities on the two side beams. Both ends of the adjusting beam are provided with fixing components for fixing to the side beams.

[0008] A fixed side box is fixedly connected to the end of the side beam away from the adjusting beam. A telescopic plate is slidably connected to the lower end of the fixed side box. A mounting base plate is fixedly connected to the lower end of the telescopic plate. Fixing holes are provided at the four corners of the mounting base plate. An adjusting component for adjusting the height of the telescopic plate is provided inside the fixed side box.

[0009] Several limiting sliders are fixedly connected to both sides of the side beam. A bearing plate is provided on the top of the side beam. Sliding frames that are slidably connected to the limiting sliders are provided on both sides of the bearing plate. An external spring is installed between the upper end of the limiting slider and the upper end of the sliding frame.

[0010] As a further aspect of the present invention: the fixing component includes a strip-shaped toothed groove, which is formed on the upper and lower end faces of the mounting cavity. Fixed toothed blocks are slidably connected to both ends of the upper and lower end faces of the adjusting beam. Spring seats are fixedly connected to both sides of the fixed toothed block at one end inside the adjusting beam. An inner spring is installed between the spring seat and the adjusting beam. A roller is installed in the middle of the side of the fixed toothed block away from the tooth surface. A pushing component for moving the fixed toothed block is provided inside the adjusting beam.

[0011] As a further embodiment of the present invention: the pushing component includes a rotating seat, which is fixedly connected to both ends of the adjusting beam. A second bidirectional screw is rotatably connected between the two rotating seats. Trapezoidal blocks that cooperate with rollers are threaded onto the threads at both ends of the second bidirectional screw. A second bevel gear is fixedly connected in the middle of the second bidirectional screw. A driving component for driving the second bevel gear to rotate is provided at the lower end of the adjusting beam.

[0012] As a further embodiment of the present invention: the driving component includes a vertical shaft, which is rotatably connected to the middle of the lower end face of the adjusting beam. A first bevel gear is fixedly connected to the upper end of the vertical shaft, and the upper end of the first bevel gear meshes with a second bevel gear. A second rotating block is fixedly connected to the lower end of the vertical shaft.

[0013] As a further embodiment of the present invention: the adjustment component includes two sliding protrusions, which are fixedly connected to the upper end of the fixed side box. Two threaded blocks are slidably connected between the two sliding protrusions. The lower end of each threaded block is rotatably connected to a connecting rod. The lower end of each connecting rod is rotatably connected to both ends of the telescopic plate. The upper end of each threaded block is fixedly connected to a locking tooth. The upper end of the fixed side box is provided with a moving component for driving the threaded blocks to move in position.

[0014] As a further embodiment of the present invention: the moving component includes a first bidirectional screw, which is rotatably connected to the fixed side box at a position between two sliding protrusions. The threads at both ends of the first bidirectional screw are respectively threaded to threaded blocks, and a first rotating block is fixedly connected to the end of the first bidirectional screw away from the side beam.

[0015] As a further aspect of the present invention: reinforcing ribs are installed between the lower end face of the side beam and the fixed side box.

[0016] As a further aspect of the present invention, the upper surface of the support plate is provided with a plurality of mounting holes.

[0017] As a further embodiment of the present invention, both the second rotating block and the first rotating block are provided with hexagonal grooves.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The present invention allows for adjustment of the extension length of the telescopic plate during use through the set adjustment components. When the height difference between the two columns used to install the crossbeam is large, the telescopic plate on one side can be adjusted to compensate for the height difference caused by the column, thereby avoiding the problem of tilting during the installation of the crossbeam. At the same time, the telescopic plates on both sides can be adjusted simultaneously, and the side beam and the adjustment beam can be raised and lowered, so that corresponding changes can be made as needed during use, greatly increasing the flexibility during assembly.

[0020] 2. The present invention, through the setting of the adjustment beam and fixing components, allows the length of the crossbeam to be adjusted during use. This enables the length of the crossbeam to be adjusted accordingly based on the spacing between the columns. The length adjustment can effectively compensate for the errors generated during the construction of the columns and avoid the situation where the crossbeam cannot be installed due to excessive errors in the construction of the columns.

[0021] 3. The present invention, through the setting of the bearing plate and the locking rack, can lock the locking teeth when other components are installed on the bearing plate. The greater the weight of the component installed on the bearing plate, the stronger the locking force applied to the locking teeth, thereby ensuring that the threaded block will not be displaced and ensuring the stability of the telescopic plate extending out of the fixed side box. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention.

[0023] Figure 2 This is a cross-sectional view of the fixed side box in this invention.

[0024] Figure 3 This is a schematic cross-sectional view of the adjustable beam structure in this invention.

[0025] Figure 4 This is a schematic diagram of the structure of the support plate in this invention.

[0026] Figure 5 This is a cross-sectional structural diagram of the side beam in this invention.

[0027] Figure 6 For the present invention Figure 1 A magnified structural diagram at point A.

[0028] The components include: 1. Adjusting beam; 2. Side beam; 3. Fixed side box; 4. Limiting slider; 5. Sliding frame; 6. Bearing plate; 7. Reinforcing rib; 8. Mounting base plate; 9. Fixing hole; 10. Outer spring; 11. Sliding convex strip; 12. Locking tooth; 13. First bidirectional screw; 14. First rotating block; 15. Threaded block; 16. Connecting rod; 17. Telescopic plate; 18. First bevel gear; 19. Fixed tooth block; 20. Rotating seat; 21. Spring seat; 22. Roller; 23. Second bidirectional screw; 24. Vertical shaft; 25. Second bevel gear; 26. Second rotating block; 27. Trapezoidal block; 28. Inner spring; 29. ​​Locking rack; 30. Strip toothed groove; 31. Mounting cavity; 32. Reinforcing inner plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-6 In this embodiment of the invention, a prefabricated large-span steel structure beam includes two side beams 2. The ends of the side beams 2 are provided with mounting cavities 31. The side beams 2 are also provided with a plurality of reinforcing inner plates 32. An adjusting beam 1 is slidably connected between the mounting cavities 31 on the two side beams 2. Both ends of the adjusting beam 1 are provided with fixing components for fixing to the side beams 2. Reinforcing ribs 7 are installed between the lower end face of the side beams 2 and the fixed side box 3.

[0031] By adjusting the beam body 1 and fixing components, the length of the crossbeam can be adjusted during use. This allows the length of the crossbeam to be adjusted according to the spacing between the columns. The length adjustment can effectively compensate for errors caused during column construction and avoid situations where the crossbeam cannot be installed due to excessive column construction errors.

[0032] The fixing component includes a strip-shaped toothed groove 30, which is formed on the upper and lower ends of the mounting cavity 31. Fixed toothed blocks 19 are slidably connected to both ends of the upper and lower ends of the adjusting beam 1. Spring seats 21 are fixedly connected to both sides of the fixed toothed block 19 located inside the adjusting beam 1. An inner spring 28 is installed between the spring seat 21 and the adjusting beam 1. A roller 22 is installed in the middle of the side of the fixed toothed block 19 away from the tooth surface. A pushing component for moving the fixed toothed block 19 is provided inside the adjusting beam 1.

[0033] When it is necessary to adjust the extension length of the beam 1 during operation, simply retract the fixed tooth block 19 into the beam 1, and then slide the beam 1 for adjustment. After the adjustment is completed, the trapezoidal block 27 is moved by pushing the component. The movement of the trapezoidal block 27 causes the fixed tooth block 19 to extend and engage in the strip tooth groove 30, thereby fixing the position of the beam 1. This allows the length of the beam to be adjusted accordingly during use.

[0034] The pushing assembly includes a rotating seat 20, which is fixedly connected to both ends of the adjusting beam 1. A second bidirectional screw 23 is rotatably connected between the two rotating seats 20. Trapezoidal blocks 27 that cooperate with rollers 22 are threaded onto the threads at both ends of the second bidirectional screw 23. A second bevel gear 25 is fixedly connected in the middle of the second bidirectional screw 23. A driving assembly for driving the second bevel gear 25 to rotate is provided at the lower end of the adjusting beam 1. The driving assembly includes a vertical shaft 24, which is rotatably connected to the middle of the lower end face of the adjusting beam 1. A first bevel gear 18 is fixedly connected to the upper end of the vertical shaft 24, and the upper end of the first bevel gear 18 meshes with the second bevel gear 25. A second rotating block 26 is fixedly connected to the lower end of the vertical shaft 24.

[0035] During operation, a tool is used to rotate the second rotating block 26. The rotation of the second rotating block 26 can drive the vertical shaft 24, which in turn drives the second bevel gear 25 to rotate. The rotation of the second bevel gear 25 can drive the second bidirectional screw 23 to rotate, which in turn drives the trapezoidal block 27 to move. The movement of the trapezoidal block 27 can push the fixed tooth block 19 to extend or retract.

[0036] The side beam 2 is fixedly connected to a fixed side box 3 at the end away from the adjusting beam 1. A telescopic plate 17 is slidably connected to the lower end of the fixed side box 3. An installation base plate 8 is fixedly connected to the lower end of the telescopic plate 17. Fixing holes 9 are provided at the four corners of the installation base plate 8. An adjustment component for adjusting the height of the telescopic plate 17 is provided inside the fixed side box 3. In use, the installation base plate 8 and fixing holes 9 make it easy to fix and connect to the column, which is convenient to use.

[0037] The adjustment assembly includes two sliding protrusions 11, which are fixedly connected to the upper end of the fixed side box 3. Two threaded blocks 15 are slidably connected between the two sliding protrusions 11. Each threaded block 15 has a connecting rod 16 rotatably connected to its lower end. The lower ends of the connecting rods 16 are rotatably connected to both ends of the telescopic plate 17. The upper end of each threaded block 15 is fixedly connected to a locking tooth 12. The upper end of the fixed side box 3 is provided with a moving assembly for driving the threaded blocks 15 to move. The adjustment assembly allows for adjustment of the extension length of the telescopic plate 17 during use. When the height error between the two columns used to install the crossbeam is large, the telescopic plate 17 on one side can be adjusted to compensate for the height error of the columns, thereby avoiding the problem of tilting during the installation of the crossbeam. Simultaneously adjusting the telescopic plates 17 on both sides also allows the side beam 2 and the adjusting beam 1 to be raised and lowered, enabling corresponding changes as needed during use and greatly increasing the flexibility during assembly.

[0038] The movable component includes a first bidirectional screw 13, which is rotatably connected to the fixed side box 3 between two sliding protrusions 11. The threads at both ends of the first bidirectional screw 13 are respectively threaded to threaded blocks 15. A first rotating block 14 is fixedly connected to the end of the first bidirectional screw 13 away from the side beam 2. Both the second rotating block 26 and the first rotating block 14 are provided with hexagonal slots. During operation, the first rotating block 14 is rotated using a tool, which drives the first bidirectional screw 13 to rotate. The rotation of the first bidirectional screw 13 can drive the threaded block 15 to move relative to or in opposite directions, thereby driving the telescopic plate 17 to move. Thus, the position of the mounting base plate 8 can be adjusted accordingly as needed during use.

[0039] Several limiting sliders 4 are fixedly connected to both sides of the side beam 2. A bearing plate 6 is provided on the top of the side beam 2. Sliding frames 5 that are slidably connected to the limiting sliders 4 are provided on both sides of the bearing plate 6. An external spring 10 is installed between the upper end face of the limiting slider 4 and the upper end of the sliding frame 5. Several mounting holes are opened on the upper end face of the bearing plate 6. With the bearing plate 6 and the locking rack 29, the locking teeth 12 can be locked when other components are installed on the bearing plate 6. The greater the weight of the component installed on the bearing plate 6, the stronger the locking force applied to the locking teeth 12, thereby ensuring that the threaded block 15 will not be displaced and ensuring the stability of the telescopic plate 17 extending out of the fixed side box 3.

[0040] The working principle of this invention is as follows: In use, the position of the mounting base plate 8 is first adjusted as needed. During adjustment, a tool is used to rotate the first rotating block 14, which drives the first bidirectional screw 13 to rotate. The rotation of the first bidirectional screw 13 can drive the threaded block 15 to move in opposite directions, thereby displacing the telescopic plate 17. Thus, the position of the mounting base plate 8 can be adjusted accordingly during use. Then, the two side beams 2 are adjusted according to the distance between the columns. Finally, a tool is used to rotate the second rotating block 26, which drives the vertical shaft... The vertical shaft 24 rotates, which drives the second bevel gear 25 to rotate. The rotation of the second bevel gear 25 drives the second bidirectional screw 23 to rotate. The rotation of the second bidirectional screw 23 drives the trapezoidal block 27 to move. When it is necessary to adjust the extension length of the adjusting beam 1, simply retract the fixed tooth block 19 into the adjusting beam 1, and then slide the adjusting beam 1 for adjustment. After the adjustment is completed, push the component to drive the trapezoidal block 27 to move. The movement of the trapezoidal block 27 drives the fixed tooth block 19 to extend and engage in the strip tooth groove 30, thereby fixing the position of the adjusting beam 1. After the adjustment is completed, install the mounting base plate 8 on the top of the column.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A prefabricated large-span steel structure beam, comprising two side beams (2), characterized in that: The side beam (2) has an installation cavity (31) at its end. The side beam (2) also has several reinforcing inner plates (32). An adjustment beam (1) is slidably connected between the installation cavities (31) on the two side beams (2). Both ends of the adjustment beam (1) are provided with fixing components for fixing to the side beam (2). The side beam (2) is fixedly connected to a fixed side box (3) at one end away from the adjusting beam (1). The lower end of the fixed side box (3) is slidably connected to a telescopic plate (17). The lower end of the telescopic plate (17) is fixedly connected to an installation base plate (8). The four corners of the installation base plate (8) are provided with fixing holes (9). The fixed side box (3) is provided with an adjustment component for adjusting the height of the telescopic plate (17). Several limiting sliders (4) are fixedly connected to both sides of the side beam (2). A bearing plate (6) is provided above the side beam (2). A sliding frame (5) is provided on both sides of the bearing plate (6) and is slidably connected to the limiting slider (4). An external spring (10) is installed between the upper end of the limiting slider (4) and the upper end of the sliding frame (5). The fixing component includes a strip toothed groove (30), which is opened on the upper and lower end faces of the mounting cavity (31). The upper and lower end faces of the adjusting beam (1) are slidably connected with fixing teeth (19). The two sides of the fixing teeth (19) located inside the adjusting beam (1) are fixedly connected with spring seats (21). The spring seats (21) and the adjusting beam (1) are both equipped with inner springs (28). The middle of the side of the fixing teeth (19) away from the tooth surface is equipped with rollers (22). The adjusting beam (1) is provided with a pushing component for pushing the fixing teeth (19) to move. The pushing component includes a rotating seat (20), which is fixedly connected to both ends of the adjusting beam (1). A second bidirectional screw (23) is rotatably connected between the two rotating seats (20). Trapezoidal blocks (27) that cooperate with rollers (22) are threaded onto the threads at both ends of the second bidirectional screw (23). A second bevel gear (25) is fixedly connected in the middle of the second bidirectional screw (23). A driving component for driving the second bevel gear (25) to rotate is provided at the lower end of the adjusting beam (1). The drive assembly includes a vertical shaft (24), which is rotatably connected to the middle of the lower end face of the adjusting beam (1). A first bevel gear (18) is fixedly connected to the upper end of the vertical shaft (24), and the upper end of the first bevel gear (18) meshes with a second bevel gear (25). A second rotating block (26) is fixedly connected to the lower end of the vertical shaft (24). The adjustment assembly includes two sliding protrusions (11), which are fixedly connected to the upper end of the fixed side box (3). Two threaded blocks (15) are slidably connected between the two sliding protrusions (11). The lower end of each threaded block (15) is rotatably connected to a connecting rod (16). The lower end of the connecting rod (16) is rotatably connected to both ends of the telescopic plate (17). The upper end of the threaded block (15) is fixedly connected to a locking tooth (12). The upper end of the fixed side box (3) is provided with a moving assembly for driving the threaded block (15) to move in position. The moving component includes a first bidirectional screw (13), which is rotatably connected to the fixed side box (3) at a position between two sliding protrusions (11). The threads at both ends of the first bidirectional screw (13) are respectively threaded to threaded blocks (15). A first rotating block (14) is fixedly connected to one end of the first bidirectional screw (13) away from the side beam (2).

2. The prefabricated large-span steel structure beam according to claim 1, characterized in that, Reinforcing ribs (7) are installed between the lower end face of the side beam (2) and the fixed side box (3).

3. The prefabricated large-span steel structure beam according to claim 1, characterized in that, The upper surface of the support plate (6) has several mounting holes.

4. The prefabricated large-span steel structure beam according to claim 1, characterized in that, Both the second rotating block (26) and the first rotating block (14) have hexagonal slots.

5. A method of using a prefabricated large-span steel structure beam as described in any one of claims 1-4, characterized in that, Includes the following steps; Step 1: When using the device, first adjust the position of the mounting base plate (8) as needed. When adjusting, use a tool to rotate the first rotating block (14). The first rotating block (14) drives the first bidirectional screw (13) to rotate. The rotation of the first bidirectional screw (13) can drive the threaded block (15) to move in the opposite direction, which can then drive the telescopic plate (17) to move. Therefore, the position of the mounting base plate (8) can be adjusted accordingly when using the device. Step 2: Then, adjust the two side beams (2) according to the distance of the columns. Then, use a tool to rotate the second rotating block (26). The rotation of the second rotating block (26) can drive the vertical shaft (24) to rotate. The rotation of the vertical shaft (24) can drive the second bevel gear (25) to rotate. The rotation of the second bevel gear (25) can drive the second double-acting screw (23) to rotate. The rotation of the second double-acting screw (23) can drive the trapezoidal block (27) to move. When it is necessary to adjust the extension length of the adjusting beam (1), simply retract the fixed tooth block (19) into the adjusting beam (1), and then slide the adjusting beam (1) to adjust. After the adjustment is completed; Step 3: By pushing the component, the trapezoidal block (27) moves. The movement of the trapezoidal block (27) causes the fixed tooth block (19) to extend and be inserted into the strip tooth groove (30), thereby fixing the position of the adjustment beam (1). After the adjustment is completed, the mounting base plate (8) is installed on the top of the column.

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