Fabricated steel structure beam for civil engineering

Abstract

The invention relates to the field of fabricated steel structure beams, and discloses a civil engineering fabricated steel structure beam which comprises two vertical rods, supporting rods are rotatably mounted at the bottoms of the vertical rods, bases are fixedly connected to the bottoms of the vertical rods, rectangular holes are formed in the upper portions of the vertical rods, and fixing seats are fixedly connected to the bottoms of the rectangular holes. A rotating rod is rotationally installed between the two fixing bases, and a worm is fixedly installed in the middle of the rotating rod. Adjusting discs on the two sides are rotated positively and negatively to drive a rotating rod to rotate, the rotating rod drives a worm to rotate, the worm drives a worm wheel on the upper portion to rotate, and therefore a mounting base and a moving mechanism are driven to rotate around a connecting rod, the levelness of a transverse rod is adjusted, and the problem that the transverse rod is not horizontal after being mounted and cannot be adjusted easily is solved. The problems that a beam needs to be detached or jacked for adjustment, a large amount of manpower, time and equipment are consumed, and an installed connecting piece or an installed anti-corrosion coating can be damaged are solved.

Description

Technical Field

[0001] This application relates to the field of prefabricated steel structure beam technology, and more particularly to a prefabricated steel structure beam for civil engineering. Background Technology

[0002] To facilitate civil engineering construction, various steel structure beams are typically used to provide stable support for the construction. Some steel structure beams not only facilitate the operation of civil engineering construction workers but also provide stable support for the entire building project. In addition, to facilitate repeated use by construction personnel, steel structure beams are usually designed to be prefabricated and detachable. Therefore, steel structure beams are very important in the process of civil engineering construction.

[0003] Currently, when connecting the horizontal members of prefabricated steel structure beams used in civil engineering, the horizontal members are usually directly inserted into the vertical members and then fixed to the vertical members with bolts. Although this method can stably connect and install the entire prefabricated steel structure, it is difficult to make fine adjustments. Adjustments require dismantling or lifting the beam, which consumes a lot of manpower, time, and equipment (such as large jacks and cranes). Moreover, it can damage the installed connectors or anti-corrosion coatings, making it quite cumbersome. Summary of the Invention

[0004] This application proposes a prefabricated steel structure beam for civil engineering, which has the advantages of rapid installation and fine-tuning, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a prefabricated steel structure beam for civil engineering, comprising two uprights, a support rod rotatably mounted on the bottom of the uprights, a base fixedly connected to the bottom of the uprights, a rectangular hole opened in the upper part of the uprights, a fixed seat fixedly connected to the bottom of the rectangular hole, a rotating rod rotatably mounted between the two fixed seats, a worm gear fixedly mounted in the middle of the rotating rod, and adjusting discs fixedly connected to both ends of the rotating rod, rectangular grooves opened on the front and rear inner walls of the rectangular hole, a fixed rod threadedly connected to the top of the uprights, and a fixed plate rotatably mounted on the bottom of the fixed rod; A connecting rod, wherein a mounting base is fixedly connected to the middle of the connecting rod, and a mounting groove is provided in the middle of the mounting base. A turbine fixedly connected to the connecting rod is provided inside the mounting groove, and a moving mechanism is provided on the upper surface of the mounting groove. The crossbar has its two ends located on the lower surface of the fixed plate. During operation, the structure allows the adjusting discs on both sides to rotate in opposite directions, causing the rotating rod to rotate. The rotating rod then drives the worm gear to rotate, which in turn drives the upper turbine to rotate. This causes the mounting base and the moving mechanism to rotate around the connecting rod, thereby adjusting the levelness of the crossbar and solving the problem of the crossbar not being level after installation.

[0006] Preferably, the moving mechanism includes two moving seats and a double-ended screw. The bottom of each moving seat has multiple sliding grooves, and a slide rail is installed inside each sliding groove. A mounting hole is located in the middle of each moving seat, and a threaded sleeve is fixedly installed inside the mounting hole. Both threaded sleeves are threadedly connected to the double-ended screw. A rotating knob is fixedly connected to the outer end of the double-ended screw, and baffles are fixedly connected to the outer sides of the slide rails on both sides. This structure allows the double-ended screw to rotate during operation by rotating the rotating knob, thereby moving the threaded sleeves towards the center. This, in turn, causes the moving seats on both sides to slide along the slide rails. At this time, the moving seats will move the crossbar upwards, thus allowing for fine-tuning of the crossbar in the vertical direction.

[0007] Preferably, the connecting rod is rotatably connected to the upright, the turbine meshes with the worm gear, and the front and rear parts of the fixing plate are slidably connected to the rectangular groove.

[0008] Preferably, the two movable seats are symmetrically arranged, the multiple slide rails are fixedly connected to the mounting base, and the baffles on both sides are fixedly connected to the mounting base.

[0009] Preferably, the threads at both ends of the double-ended screw have opposite directions of rotation and equal pitch.

[0010] Preferably, the lower surface of the crossbar contacts the upper surface of the plurality of movable seats, and the width of the crossbar is equal to the width of the rectangular groove.

[0011] Preferably, the mounting hole is located in the middle of the movable seat, and the turbine is located in the middle of the connecting rod. The above structure enables the upper fixed rod to be rotated when the crossbar is finely adjusted to a suitable height during operation, so that the fixed plate moves downward along the rectangular groove until the crossbar is fixed, thereby allowing the crossbar to be installed quickly.

[0012] The beneficial effects of this invention are as follows: 1. This invention uses the adjusting discs on both sides to rotate in opposite directions, causing the rotating rod to rotate. The rotating rod then drives the worm gear to rotate, which in turn drives the upper turbine to rotate. This causes the mounting base and the moving mechanism to rotate around the connecting rod, thereby adjusting the level of the crossbar. This solves the problem of crossbars not being level after installation, requiring removal or lifting of the beam for adjustment, which consumes a lot of manpower, time, and equipment (such as large jacks and cranes), and may also damage the installed connecting parts or anti-corrosion coating. Furthermore, it solves the problem that a level crossbar can lead to misalignment at the connection point, and forced connection can result in uneven stress at the connection point, with some parts overloaded and some unloaded, reducing the overall connection rigidity and anti-slip ability. If welding is performed at an inclined position, the molten metal in the pool is prone to flow, resulting in poor weld formation (such as undercut, lack of fusion), uneven distribution of welding residual stress, and increased risk of deformation and cracking.

[0013] 2. This invention utilizes a rotating knob to drive a double-ended screw, which in turn moves the threaded sleeve towards the center. This, in turn, causes the two movable seats on either side to slide along the slide rail. The movable seats then move the crossbar upwards, allowing for fine-tuning of the crossbar's vertical direction. During this process, rotating the knob and the double-ended screw follow the upward movement, significantly shortening the installation, alignment, and fixing time for a single beam. This reduces rework, waiting, and downtime caused by uneven adjustments, enabling a streamlined "hoisting-positioning-fixing" operation. This significantly accelerates the overall construction progress, and the rapid fine-tuning capability allows the construction team to respond flexibly without waiting for design changes or large-scale rework. For complex nodes such as multi-beam intersections, inclined beams, and curved beams, rapid adjustment is crucial for achieving precise alignment. Attached Figure Description

[0014] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles of this application in a clear and understandable manner.

[0015] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a schematic diagram of the overall appearance of the invention; Figure 2 This is a half-sectional schematic diagram of the pole of the present invention; Figure 3 This is a schematic diagram of the moving mechanism of the present invention; Figure 4 This is a half-sectional schematic diagram of the mounting base of the present invention; Figure 5 This is a schematic diagram of the slide rail structure of the present invention; Figure 6 This is a schematic diagram of the movable seat structure of the present invention; Figure 7 This is a schematic diagram of the rectangular groove structure of the present invention.

[0016] The components are as follows: 1. Upright pole; 2. Support rod; 3. Base; 4. Rectangular hole; 5. Fixed seat; 6. Rotating rod; 7. Worm rod; 8. Adjusting disc; 9. Rectangular groove; 10. Fixed rod; 11. Fixed plate; 12. Connecting rod; 13. Mounting seat; 14. Mounting groove; 15. Turbine; 16. Moving mechanism; 161. Moving seat; 162. Sliding groove; 163. Slide rail; 164. Mounting hole; 165. Threaded sleeve; 166. Double-ended screw; 167. Rotating knob; 168. Baffle; 17. Crossbar. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] Please see Figure 1-7 This application discloses a prefabricated steel structure beam for civil engineering, including two uprights 1, a support rod 2 rotatably installed at the bottom of the uprights 1, a base 3 fixedly connected to the bottom of the uprights 1, a rectangular hole 4 opened at the top of the uprights 1, a fixed seat 5 fixedly connected to the bottom of the rectangular hole 4, a rotating rod 6 rotatably installed between the two fixed seats 5, a worm gear 7 fixedly installed in the middle of the rotating rod 6, and an adjusting plate 8 fixedly connected to both ends of the rotating rod 6. Rectangular grooves 9 are opened on the front and rear inner walls of the rectangular hole 4, a fixed rod 10 is threadedly connected to the top of the uprights 1, and a fixed plate 11 is rotatably installed at the bottom of the fixed rod 10. A connecting rod 12 is fixedly connected to a mounting base 13 in the middle of the connecting rod 12. A mounting groove 14 is provided in the middle of the mounting base 13. A turbine 15 fixedly connected to the connecting rod 12 is provided inside the mounting groove 14. A moving mechanism 16 is provided on the upper surface of the mounting groove 14. The horizontal bar 17, with both ends located on the lower surface of the fixed plate 11, functions to rotate the adjusting discs 8 on both sides in opposite directions, thereby causing the rotating rod 6 to rotate. The rotating rod 6 will then drive the worm gear 7 to rotate, which in turn will drive the upper turbine 15 to rotate. This will cause the mounting base 13 and the moving mechanism 16 to rotate around the connecting rod 12, thus adjusting the levelness of the horizontal bar 17. This solves the problem of the horizontal bar 17 not being level after installation, requiring removal or jacking the beam for adjustment, which consumes a lot of manpower, time, and equipment (such as large jacks and cranes), and may also damage the installed connecting parts or anti-corrosion coating.

[0019] The moving mechanism 16 includes two moving seats 161 and a double-ended screw 166. The bottom of the moving seat 161 is provided with multiple sliding grooves 162. The sliding grooves 162 are provided with slide rails 163. The middle of the moving seat 161 is provided with a mounting hole 164. A threaded sleeve 165 is fixedly installed inside the mounting hole 164. Both threaded sleeves 165 are threadedly connected to the double-ended screw 166. A rotating knob 167 is fixedly connected to the outer end of the double-ended screw 166. Baffles 168 are fixedly connected to the outer sides of the slide rails 163 on both sides. Its function is that by rotating the rotary knob 167, the double-headed screw 166 is rotated, thereby moving the threaded sleeve 165 towards the center, which in turn causes the movable seats 161 on both sides to slide along the slide rail 163. At this time, the movable seats 161 will drive the crossbar 17 to move upward, thereby making fine adjustments to the crossbar 17 in the vertical direction. During the process, rotating the rotary knob 167 and the double-headed screw 166 will move upward accordingly, thereby greatly shortening the installation, correction and fixing time of a single beam, reducing rework, waiting and downtime caused by uneven adjustment, realizing the assembly line operation of "hoisting-positioning-fixing", and significantly accelerating the overall construction progress.

[0020] Among them, the connecting rod 12 is rotatably connected to the upright 1, the turbine 15 is engaged with the worm gear 7, and the front and rear parts of the fixing plate 11 are slidably connected to the rectangular groove 9.

[0021] Among them, two movable seats 161 are symmetrically arranged, multiple slide rails 163 are fixedly connected to the mounting base 13, and the baffles 168 on both sides are fixedly connected to the mounting base 13.

[0022] In particular, the threads at both ends of the double-ended screw 166 have opposite directions and equal pitch.

[0023] The lower surface of the crossbar 17 contacts the upper surface of the multiple movable seats 161. The width of the crossbar 17 is equal to the width of the rectangular groove 9. The mounting hole 164 is located in the middle of the movable seat 161. The turbine 15 is located in the middle of the connecting rod 12. Its function is to rotate the upper fixed rod 10 when the crossbar 17 is finely adjusted to a suitable height, so that it drives the fixed plate 11 to move downward along the rectangular groove 9 until the crossbar 17 is fixed, thereby allowing the crossbar 17 to be installed quickly.

[0024] Working principle: Connect the support rod 2 and base 3 at the bottom of the upright 1 to the ground. Then, place both ends of the crossbar 17 on the upper surface of each movable seat 161. Use a level to check the levelness of the crossbar 17. When the crossbar 17 is not level, rotate the adjusting discs 8 on both sides in both directions to make them rotate the rotating rod 6. The rotating rod 6 will drive the worm gear 7 to rotate, and the worm gear 7 will drive the upper turbine 15 to rotate. This will cause the mounting base 13 and the moving mechanism 16 to rotate around the connecting rod 12, thereby adjusting the levelness of the crossbar 17 and preventing it from being horizontal. After installation, pole 17 was found to be uneven, requiring removal or jacking of the beam for adjustment. This consumed a significant amount of manpower, time, and equipment (such as large jacks and cranes), and could also damage the installed connectors or anti-corrosion coating. Secondly, uneven beam ends can lead to misalignment at the connection points. Forcing the connection will result in uneven stress distribution at the connection points, with some areas overloaded and others unloaded, reducing the overall connection stiffness and anti-slip capability. If welding is performed at an inclined position, the molten metal is prone to flow, leading to poor weld formation (such as undercut and lack of fusion), uneven distribution of residual welding stress, and increased risk of deformation and cracking. After the crossbar 17 is adjusted to be horizontal, the rotating knob 167 is turned to drive the double-ended screw 166 to rotate, thereby driving the threaded sleeve 165 to move towards the center, and then driving the moving seats 161 on both sides to slide along the slide rail 163. At this time, the moving seats 161 will drive the crossbar 17 to move upward, thereby making a fine adjustment of the crossbar 17 in the vertical direction. During the process, rotating the knob 167 will cause the double-ended screw 166 to move upward. When the crossbar 17 is finely adjusted to the appropriate height, the upper fixed rod 10 is rotated, causing the fixed plate 11 to move downward along the rectangular groove 9 until the crossbar 17 is fixed. This greatly shortens the installation, correction and fixing time of a single beam, and reduces rework, waiting and downtime caused by uneven adjustment. It realizes the assembly line operation of "hoisting-positioning-fixing" and significantly speeds up the overall construction progress.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A prefabricated steel structure beam for civil engineering, characterized in that, It includes two uprights (1), a support rod (2) is rotatably installed at the bottom of the uprights (1), a base (3) is fixedly connected to the bottom of the uprights (1), a rectangular hole (4) is opened at the top of the uprights (1), a fixed seat (5) is fixedly connected to the bottom of the rectangular hole (4), a rotating rod (6) is rotatably installed between the two fixed seats (5), a worm gear (7) is fixedly installed in the middle of the rotating rod (6), an adjusting plate (8) is fixedly connected to both ends of the rotating rod (6), a rectangular groove (9) is opened on the front and rear inner walls of the rectangular hole (4), a fixed rod (10) is threadedly connected to the top of the uprights (1), and a fixed plate (11) is rotatably installed at the bottom of the fixed rod (10). A connecting rod (12) is fixedly connected to a mounting base (13) in the middle. A mounting groove (14) is provided in the middle of the mounting base (13). A turbine (15) fixedly connected to the connecting rod (12) is provided inside the mounting groove (14). A moving mechanism (16) is provided on the upper surface of the mounting groove (14). A crossbar (17) with both ends located on the lower surface of a fixing plate (11).

2. The prefabricated steel structure beam for civil engineering according to claim 1, characterized in that, The moving mechanism (16) includes two moving seats (161) and a double-ended screw (166). The bottom of the moving seat (161) is provided with multiple sliding grooves (162). The sliding grooves (162) are provided with slide rails (163). The middle part of the moving seat (161) is provided with a mounting hole (164). A threaded sleeve (165) is fixedly installed inside the mounting hole (164). Both threaded sleeves (165) are threadedly connected to the double-ended screw (166). A rotating knob (167) is fixedly connected to the outer end of the double-ended screw (166). Baffles (168) are fixedly connected to the outer sides of the slide rails (163) on both sides.

3. A prefabricated steel structure beam for civil engineering according to claim 2, characterized in that, The connecting rod (12) is rotatably connected to the upright (1), the turbine (15) meshes with the worm gear (7), and the front and rear parts of the fixing plate (11) are slidably connected to the rectangular groove (9).

4. A prefabricated steel structure beam for civil engineering according to claim 3, characterized in that, The two movable seats (161) are symmetrically arranged, and the multiple slide rails (163) are fixedly connected to the mounting base (13). The baffles (168) on both sides are fixedly connected to the mounting base (13).

5. A prefabricated steel structure beam for civil engineering according to claim 4, characterized in that, The threads at both ends of the double-ended screw (166) have opposite directions and equal pitch.

6. A prefabricated steel structure beam for civil engineering according to claim 5, characterized in that, The lower surface of the crossbar (17) contacts the upper surface of the plurality of movable seats (161), and the width of the crossbar (17) is equal to the width of the rectangular groove (9).

7. A prefabricated steel structure beam for civil engineering according to claim 6, characterized in that, The mounting hole (164) is located in the middle of the movable seat (161), and the turbine (15) is located in the middle of the connecting rod (12).

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