High-strength fabricated building steel structure

Abstract

The invention relates to the technical field of fabricated buildings, in particular to a high-strength fabricated building steel structure which comprises a multi-edge frame, a steel plate and a steel plate. The multiple connecting seats are fixed to the periphery, the top and the bottom of the multi-edge frame, mounting inserting grooves are formed in the middles of the connecting seats and the multi-edge frame, and steel structure module units are inserted into the inner walls of the mounting inserting grooves; the reinforcing assemblies are distributed on the multi-edge frame and the connecting seats in two layers at equal intervals and are used for reinforcing the multi-edge frame, the connecting seats and the steel structure module units; and the central frame is arranged at the center of the polygonal frame. Synchronous clamping and fixing of a plurality of steel structure module units can be achieved, compared with a traditional one-by-one fixing mode, the assembling procedure connection time is remarkably shortened, the working efficiency is improved, the problems that bolts are loosened, welding quality is difficult to guarantee, welding seam stress is concentrated and the like are solved, the structural safety is improved, the overall shear strength can be fully enhanced, and the service life is prolonged. And the structural stability is improved.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a high-strength prefabricated building steel structure. Background Technology

[0002] Prefabricated steel structure buildings refer to a building form mainly composed of integrated steel structure modular units assembled on-site. These steel structure modular units are prefabricated in a factory and include the main structure, enclosure walls, floor slab, and roof slab, forming a three-dimensional spatial entity with functional uses. In the modern construction field, steel structures are widely used due to their advantages such as high strength, light weight, and short construction period. However, the connection quality of steel structure nodes directly affects the stability and safety of the entire structure. Traditional steel structure connection methods, such as bolted connections and welded connections, have many defects: bolted connections are prone to loosening and failure due to vibration and load changes during long-term use; welded connections require high-level construction techniques, have complex on-site working environments, and are difficult to guarantee welding quality. Furthermore, stress concentration easily occurs at the weld seams, making the node areas weak points in the structure under extreme loads such as earthquakes, prone to brittle failure.

[0003] To address the shortcomings of traditional connection methods, a certain prefabricated building steel structure in the market uses positioning components for direct positioning and fixing, and has a certain market share.

[0004] For example, a search revealed that invention patent CN115787853B discloses a building steel structure connector, relating to the field of steel structures. It includes a rectangular block and several mounting blocks. Each side of the rectangular block is slidably connected to several locking blocks, which are circumferentially distributed. The mounting blocks have through holes for the locking blocks to pass through, and the locking blocks have grooves for the mounting blocks to engage. The mounting blocks have positioning components for positioning the locking blocks, and mounting blocks have mounting grooves for inserting steel. The mounting blocks also have positioning elements for positioning the steel within the mounting grooves. Depending on the connection requirements, the mounting block is installed on the side of the rectangular block where the steel needs to be connected. The steel is then inserted into the mounting groove on the mounting block, and the positioning elements position the steel within the groove, thus obtaining the corresponding steel connection structure. This allows for different steel structure connections, better meeting the diverse connection needs of steel structures and offering greater applicability.

[0005] However, based on the aforementioned patents, it is clear that the existing technology has the following shortcomings: the existing prefabricated steel structure is assembled from multiple steel structure module units. However, during the assembly process, the steel structure module units are often fixed one by one, and it is impossible to fix multiple steel structure module units at the same time. This increases the time for connecting assembly processes and reduces work efficiency. Therefore, a high-strength prefabricated steel structure is proposed to improve the above problems. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that in the existing prefabricated building steel structure, the steel structure module unit is often fixed one by one during the assembly process, and multiple steel structure module units cannot be fixed at the same time, which increases the time for connecting assembly processes and reduces work efficiency.

[0007] To address the above problems, this invention provides a high-strength prefabricated steel structure for buildings, comprising:

[0008] Multiple borders, designed in a polyhedral shape;

[0009] Multiple connectors are fixed around, at the top and bottom of the multi-frame, and mounting slots are provided in the middle of the connectors and on the multi-frame. Steel structure module units are inserted into the inner walls of the mounting slots.

[0010] The reinforcement components are distributed in two layers at equal intervals on the multi-frame and the connector, and are used to reinforce the multi-frame, the connector and the steel structure module unit.

[0011] A central frame is located at the center of the multi-frame, and each of the six sides of the central frame is fixed with a mounting bracket to one of the six side walls of the multi-frame. One end of the steel structure module unit is attached to one side of the mounting bracket.

[0012] Each mounting bracket is provided with a positioning component between itself and the central frame. The positioning component includes a fixed frame that is fixedly installed between the mounting bracket and the central frame. A first mounting hole is provided at the center of the mounting bracket and at the center of each of the six sides of the central frame. The inner walls of two adjacent first mounting holes are rotatably connected to the same threaded rod through a bearing. A through hole is provided on the fixed frame for the threaded rod to pass through. A clamping structure for clamping the steel structure module unit is provided on the fixed frame. One end of the threaded rod is provided with the same driving mechanism, and the driving mechanism drives the threaded rod to drive the clamping structure to work.

[0013] The above technical solutions enable the rapid positioning of multiple steel structure module units in a single operation, significantly reducing the assembly process connection time and improving work efficiency compared to the traditional method of fixing them one by one. Compared to traditional bolt and welding connections, they also avoid problems such as bolt loosening, difficulty in ensuring welding quality, and stress concentration in welds, thus improving structural safety.

[0014] The invention is further configured such that the clamping structure includes two L-shaped clamps symmetrically arranged on the fixed frame, and one end of each L-shaped clamp is fixed with a movable seat. Two second guide grooves for the L-shaped clamps to move are opened on one side of the fixed frame. First guide grooves are opened at both ends of the fixed frame, and traction seats are movably arranged on the inner walls of the two first guide grooves. A threaded hole for screwing a threaded rod is opened at the middle of the traction seat. Traction grooves are opened on both sides of the traction seat, and a traction block that is slidably arranged in the traction groove is fixed on one side of the movable seat. One end of each steel structure module unit is opened with a positioning port, and the other end of each L-shaped clamp is engaged in the positioning port.

[0015] The present invention is further configured such that both sides of the traction seat and one side of the movable seat are designed as inclined surfaces, and the inclined surface of the movable seat is in contact with the inclined surface of the traction seat.

[0016] The invention is further configured such that the inner walls of the two second guide grooves are each equipped with a plurality of slide rails, and the L-shaped clamps are each provided with a plurality of slide grooves through which the slide rails pass.

[0017] Through the above technical solution, the synchronous clamping and fixing of multiple steel structure module units can be achieved by linking the positioning components and the driving mechanism.

[0018] The present invention is further configured such that the driving mechanism includes a rotating shaft fixedly installed at the ends of two upper and lower threaded rods, and a second driving gear is fixedly installed on the outer wall of the rotating shaft. A second driven gear is fixedly installed at one end of each of the four threaded rods on the same plane. The second driven gears mesh with the second driving gears. The size of the second driven gears is smaller than that of the second driving gears. There is no contact between two adjacent second driven gears. A rotating component is provided on the rotating shaft.

[0019] The invention is further configured such that the rotating component includes a second mounting hole formed on the multi-frame and the center frame, and a drive shaft is rotatably connected to the inner wall of the second mounting hole. A first driving gear is fixedly mounted on one end of the drive shaft, and a first driven gear is fixedly mounted on the bottom of the outer wall of the rotating shaft, and the first driven gear meshes with the first driving gear. A knob is fixedly mounted on the other end of the rotating shaft, and an anti-loosening component for reinforcing the knob is provided on the outer wall of the multi-frame.

[0020] The above technical solution enables all threaded rods to rotate synchronously, facilitating the positioning assembly to perform positioning and reinforcement operations on the steel structure module units.

[0021] The present invention is further configured such that the anti-loosening component includes a fixing sleeve block fixed to the outer wall of the multi-frame, and a through hole is provided on the knob. The inner wall of the through hole and the inner wall of the fixing sleeve block are connected to the same anti-loosening screw, and multiple anti-loosening nuts are screwed to the bottom of the anti-loosening screw.

[0022] The above technical solutions ensure the stability of the drive mechanism, thereby ensuring the reliable fixation of the positioning components to the steel structure module unit.

[0023] The present invention is further configured such that the reinforcing component includes two layers of reinforcing plates evenly distributed on the multi-frame and the connecting seat, and the two ends of the reinforcing plates and the connecting seat are provided with insertion holes, and the inner walls of the insertion holes are provided with reinforcing screws. The top end and the bottom end of the steel structure module unit are provided with reinforcing screw holes, and the reinforcing screws are screwed into the reinforcing screw holes.

[0024] The above technical solutions achieve mechanical locking, significantly enhancing overall shear strength and further improving structural stability.

[0025] The present invention is further configured such that the mounting bracket, the central frame and the multi-frame are fixedly connected by welding, the multi-frame and the connecting seat are integrally formed of high-strength alloy steel, and the multi-frame and the central frame are both spliced ​​from two shells of the same specification.

[0026] The above technical solutions enable the connecting seat and the central frame to form a spatial grid system, allowing loads in all directions to be distributed and transferred, thereby improving the shear strength of the overall structure.

[0027] The present invention is further configured such that the surfaces of the multi-frame, connecting seat and steel structure module unit are provided with an anti-corrosion coating, and the anti-corrosion coating is a hot-dip galvanized coating.

[0028] The above technical solutions improve the strength and corrosion resistance of steel structures and extend their service life.

[0029] In summary, by adopting the above structure, the present invention has the following advantages compared with the prior art:

[0030] 1. In this invention, the drive mechanism uses a gear set (the first driving gear meshes with the first driven gear, and the second driving gear meshes with the second driven gear) to make multiple threaded rods rotate synchronously, driving the traction seat to move along the first guide groove. Through inclined plane transmission, it pushes two L-shaped clamps to synchronously engage in the positioning port of the steel structure module unit. Thus, through the linkage design of the positioning component and the drive mechanism, the synchronous clamping and fixing of multiple steel structure module units can be achieved. This not only enables the rapid positioning of multiple steel structure module units in a single operation, but also significantly reduces the assembly process connection time and improves work efficiency compared to the traditional method of fixing them one by one. It is especially suitable for the rapid construction of large-scale prefabricated buildings. Compared with traditional bolt and welding connections, this direct positioning method of steel structure avoids problems such as bolt loosening, difficulty in ensuring welding quality, and stress concentration in welds, thus improving structural safety.

[0031] 2. In this invention, a multi-faceted frame integrally formed from high-strength alloy steel is used, and a spatial grid system is formed with the central frame through connecting seats. Loads in all directions can be distributed and transferred, initially improving the shear strength of the overall structure. At the same time, the upper and lower reinforcing plates are mechanically locked to the reinforcing screw holes of the steel structure module unit through reinforcing screws. This not only fully enhances the overall shear strength, but also eliminates the connection gap through bolt pre-tightening force, so that the overall structure maintains a rigid connection under vibration load, further improving the stability of the structure.

[0032] 3. In this invention, the anti-loosening component adopts a combination of anti-loosening screws and multiple anti-loosening nuts. Through the dual mechanism of thread friction and mechanical interlocking, the stability of the drive mechanism is ensured, thereby ensuring the reliable fixation of the positioning component to the steel structure module unit.

[0033] 4. In this invention, the inclined surface design of the L-shaped clamp and the traction seat can automatically adjust the clamping force when the load changes, avoiding local stress concentration. Especially under sudden loads such as earthquakes, it can absorb energy through structural elastic deformation and reduce the risk of brittle failure of nodes.

[0034] 5. In this invention, the surfaces of the multi-frame, connecting seat, and steel structure module unit are all provided with hot-dip galvanized anti-corrosion coating, which can improve the strength and corrosion resistance of the steel structure and extend its service life. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of a high-strength prefabricated steel structure for buildings according to the present invention.

[0036] Figure 2 This is a front view of a high-strength prefabricated steel structure for buildings according to the present invention.

[0037] Figure 3 This is a schematic diagram of the mounting slot and socket structure of a high-strength prefabricated building steel structure according to the present invention;

[0038] Figure 4 This is a three-dimensional sectional view of a high-strength prefabricated steel structure for buildings according to the present invention.

[0039] Figure 5 This is a perspective view of the central frame and positioning components of a high-strength prefabricated steel structure for buildings according to the present invention.

[0040] Figure 6 This is a schematic diagram of the drive mechanism structure of a high-strength prefabricated building steel structure according to the present invention.

[0041] Figure 7 This is a schematic diagram of the rotating shaft and threaded rod structure of a high-strength prefabricated building steel structure according to the present invention;

[0042] Figure 8This is a schematic diagram of the first mounting hole and traction seat structure of a high-strength prefabricated building steel structure according to the present invention.

[0043] Figure 9 This is a schematic diagram of the first and second guide grooves of a high-strength prefabricated steel structure for buildings according to the present invention.

[0044] Figure 10 This is a schematic diagram of the traction groove and traction block structure of a high-strength prefabricated building steel structure according to the present invention;

[0045] Figure 11 This is a schematic diagram of the anti-loosening component of a high-strength prefabricated steel structure for buildings according to the present invention.

[0046] Figure 12 This is a schematic diagram of the positioning port and reinforcing screw hole structure of a high-strength prefabricated building steel structure according to the present invention.

[0047] Explanation of the labels in the diagram:

[0048] 1. Multi-frame; 2. Connecting seat; 3. Steel structure module unit; 4. Drive mechanism; 41. Knob; 42. Drive shaft; 43. Rotating shaft; 44. Second driving gear; 45. Second driven gear; 46. First driven gear; 47. First driving gear; 5. Anti-loosening component; 51. Fixing sleeve; 52. Anti-loosening screw; 53. Through hole; 54. Anti-loosening nut; 6. Reinforcing plate; 7. Reinforcing screw; 8. Mounting slot; 9. 120. Insertion hole; 121. Mounting bracket; 122. Center frame; 123. Positioning component; 124. Fixing frame; 125. L-shaped clamp; 126. Slide rail; 127. Threaded rod; 128. Traction seat; 129. Movable seat; 120. First mounting hole; 1211. First guide groove; 122. Second guide groove; 123. Slide groove; 1214. Traction groove; 1215. Traction block; 1216. Positioning port; 127. Reinforcing screw hole. Detailed Implementation

[0049] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0050] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] Implementation method 1:

[0053] Please see Figures 1-12 This invention provides a high-strength prefabricated steel structure for buildings, comprising:

[0054] Multi-border 1, which is designed in the shape of a polyhedron;

[0055] Multiple connecting seats 2 are fixed around, on top and at bottom of the multi-frame 1, and mounting slots 8 are provided in the middle of the connecting seats 2 and on the multi-frame 1. Steel structure module units 3 are inserted into the inner wall of the mounting slots 8.

[0056] The reinforcing components are distributed in two layers at equal intervals on the multi-frame 1 and the connecting seat 2, and are used to reinforce the multi-frame 1, the connecting seat 2 and the steel structure module unit 3;

[0057] The central frame 11 is located at the center of the multi-sided frame 1, and the six sides of the central frame 11 are fixed with mounting brackets 10 to the six side walls of the multi-sided frame 1. One end of the steel structure module unit 3 is attached to one side of the mounting bracket 10. The mounting bracket 10, the central frame 11 and the multi-sided frame 1 are fixedly connected by welding. The multi-sided frame 1 and the connecting seat 2 are integrally formed of high-strength alloy steel, and the multi-sided frame 1 and the central frame 11 are both spliced ​​from two shells of the same specification.

[0058] Positioning components 12 are provided between each mounting bracket 10 and the central frame 11. Each positioning component 12 includes a fixed frame 121 fixedly installed between the mounting bracket 10 and the central frame 11. First mounting holes 127 are provided at the center of the mounting bracket 10 and at the center of each of the six sides of the central frame 11. The inner walls of two adjacent first mounting holes 127 are rotatably connected by the same threaded rod 124 through bearings. The fixed frame 121 has through holes for the threaded rod 124 to pass through. The fixed frame 121 is provided with a clamping structure for clamping the steel structure module unit 3. One end of the threaded rod 124 is provided with the same driving mechanism 4, and the driving mechanism 4 drives the threaded rod 124 to move the clamping mechanism. The clamping structure includes two L-shaped clamps 122 symmetrically arranged on a fixed frame 121, with a movable seat 126 fixed to one end of each L-shaped clamp 122. Two second guide grooves 129 for the L-shaped clamps 122 to move are provided on one side of the fixed frame 121. First guide grooves 128 are provided at both ends of the fixed frame 121, and traction seats 125 are movably arranged on the inner walls of the two first guide grooves 128. A threaded hole for screwing a threaded rod 124 is provided in the middle of the traction seat 125. Traction grooves 1211 are provided on both sides of the traction seat 125, and a movable seat 126 is fixedly and slidably disposed within one of the traction grooves 1211. The traction block 1212 and the steel structure module unit 3 each have a positioning port 1213 at one end, and the other ends of the two L-shaped clamps 122 are engaged in the positioning port 1213. The two sides of the traction seat 125 and one side of the movable seat 126 are designed as inclined surfaces, and the inclined surface of the movable seat 126 fits against the inclined surface of the traction seat 125. The inner walls of the two second guide grooves 129 are each equipped with multiple slide rails 123, and the L-shaped clamps 122 each have multiple grooves 1210 for the slide rails 123 to pass through. The rotation of the threaded rod 124 synchronously drives the traction seat 125 to move along the first guide groove 128, and the inclined surfaces on both sides push the movable seat 126 to slide. The L-shaped clamp 122 moves within the second guide groove 129 via the slide rail 123, causing one end of the L-shaped clamp 122 to engage with the positioning port 1213 of the steel structure module unit 3. Through the linkage design of the positioning component 12 and the drive mechanism 4, multiple steel structure module units 3 can be clamped and fixed synchronously. This not only enables the rapid positioning of multiple steel structure module units 3 in a single operation, but also significantly reduces the assembly process connection time and improves work efficiency compared to the traditional method of fixing them one by one. Furthermore, compared to traditional bolt and welding connections, it avoids problems such as bolt loosening, difficulty in ensuring welding quality, and stress concentration in welds, thus improving structural safety.

[0059] In this invention, the drive mechanism 4 includes a rotating shaft 43 fixedly mounted on the ends of two upper and lower threaded rods 124. A second driving gear 44 is fixedly mounted on the outer wall of the rotating shaft 43. A second driven gear 45 is fixedly mounted on one end of each of the four threaded rods 124 on the same plane. The second driven gears 45 mesh with the second driving gears 44. The size of the second driven gears 45 is smaller than that of the second driving gears 44. Adjacent second driven gears 45 do not contact each other. A rotating assembly is provided on the rotating shaft 43. The rotating assembly includes a second mounting hole opened on the polygonal frame 1 and the central frame 11. A drive shaft 42 is rotatably connected to the inner wall of the second mounting hole. A first driving gear 42 is fixedly mounted on one end of the drive shaft 42. The drive gear 47 and the bottom of the outer wall of the rotating shaft 43 are fixedly installed with a first driven gear 46, which meshes with the first drive gear 47. The other end of the rotating shaft 43 is fixedly installed with a knob 41, and the outer wall of the multi-frame 1 is provided with an anti-loosening component 5 for reinforcing the knob 41. When the knob 41 is rotated, the first drive gear 47 is driven to mesh with the first driven gear 46 through the rotating shaft 43, which drives the upper and lower threaded rods 124 to rotate. At the same time, the threaded rods 124 on the same plane are synchronously rotated through the second drive gear 44 meshing with the second driven gear 45, thereby driving all the threaded rods 124 to rotate synchronously, which facilitates the positioning component 12 to perform the positioning and reinforcement operation of the steel structure module unit 3.

[0060] In this invention, the anti-loosening component 5 includes a fixing sleeve 51 fixed to the outer wall of the multi-frame 1, and a through hole 53 is provided on the knob 41. The inner wall of the through hole 53 and the inner wall of the fixing sleeve 51 are connected to the same anti-loosening screw 52. Multiple anti-loosening nuts 54 are screwed to the bottom of the anti-loosening screw 52. The anti-loosening screw 52 in the anti-loosening component 5 is passed through the through hole 53 of the fixing sleeve 51 and the knob 41, and multiple anti-loosening nuts 54 are screwed to its bottom. The knob 41 is prevented from loosening by the thread friction and mechanical interlock, thereby reinforcing the drive mechanism 4, ensuring the stability of the drive mechanism 4, and thus ensuring the reliable fixing of the positioning component 12 to the steel structure module unit 3.

[0061] In this invention, the surfaces of the multi-frame 1, the connecting seat 2, and the steel structure module unit 3 are provided with anti-corrosion coatings, and the anti-corrosion coatings are hot-dip galvanized coatings. The hot-dip galvanized anti-corrosion coatings improve the strength and corrosion resistance of the steel structure and extend its service life.

[0062] The second implementation method:

[0063] Based on the first embodiment, this embodiment adds the following structure to make the present application highly stable. The specific settings are as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 12As shown, the reinforcement component includes two layers of reinforcement plates 6 evenly distributed on the multi-frame 1 and the connecting seat 2. Insertion holes 9 are provided at both ends of the reinforcement plates 6 and on the connecting seat 2. Reinforcing screws 7 are inserted into the inner walls of the insertion holes 9. Reinforcing screw holes 13 are provided at the top and bottom ends of the steel structure module unit 3, and the reinforcing screws 7 are screwed into the reinforcing screw holes 13. The two layers of reinforcement plates 6 are distributed on the multi-frame 1 and the connecting seat 2, and the reinforcing screws 7 are screwed into the reinforcing screw holes 13 of the steel structure module unit 3 after passing through the insertion holes 9. The bolt preload forces the reinforcement plates 6 to press tightly against the steel structure module unit 3, thereby forming a mechanical lock. This not only significantly enhances the overall shear strength but also eliminates connection gaps through bolt preload, ensuring a rigid connection of the overall structure under vibration loads and further improving the stability of the structure.

[0064] In summary, the working principle of the present invention is as follows: During initial assembly, since the multi-sided frame 1 has a polyhedral structure, the fixed connecting seats 2 are provided on its four sides, top and bottom, and both of them have mounting slots 8. At this time, the steel structure module unit 3 can be inserted along the mounting slots 8 and one end of it can be attached to the mounting frame 10.

[0065] Next, the drive positioning component 12 is activated by rotating the knob 41, which drives the first drive gear 47 to mesh with the first driven gear 46 through the rotating shaft 43, driving the upper and lower threaded rods 124 to rotate. At the same time, the threaded rods 124 on the same plane rotate synchronously through the second drive gear 44 meshing with the second driven gear 45, thereby driving all the threaded rods 124 to rotate synchronously. When the threaded rods 124 rotate, they synchronously drive the traction seat 125 to move along the first guide groove 128. The inclined surfaces on both sides of the traction seat 125 will push the movable seat 126 to slide, so that the L-shaped clamp 122 moves in the second guide groove 129 through the slide rail 123, and finally gets into the positioning port 1213 of the steel structure module unit 3, completing the synchronous clamping of multiple steel structure module units 3.

[0066] After clamping is completed, the anti-loosening screw 52 in the anti-loosening component 5 is passed through the through hole 53 of the fixing sleeve 51 and the knob 41, and multiple anti-loosening nuts 54 are screwed to the bottom. The knob 41 is prevented from loosening by the friction of the threads and mechanical interlocking, thereby reinforcing the drive mechanism 4 and ensuring stability.

[0067] Finally, the upper and lower reinforcing plates 6 are distributed on the multi-frame 1 and the connecting seat 2, and the reinforcing screws 7 are screwed into the reinforcing screw holes 13 of the steel structure module unit 3 after passing through the insertion hole 9. The reinforcing plates 6 are pressed tightly against the steel structure module unit 3 by the bolt pre-tightening force, so as to reinforce the entire prefabricated building structure with high strength.

[0068] In light of current practical needs, the above-described embodiments adopted in this application are not limited to this scope of protection. Various changes made within the knowledge of those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A high-strength prefabricated steel structure for buildings, characterized in that, include: Multi-border (1), which is designed as a polyhedron; Multiple connecting seats (2) are fixed around, at the top and bottom of the multi-frame (1), and mounting slots (8) are provided in the middle of the connecting seats (2) and on the multi-frame (1). Steel structure module units (3) are inserted into the inner wall of the mounting slots (8). The reinforcing components are distributed in two layers at equal intervals on the multi-frame (1) and the connector (2) to reinforce the multi-frame (1), the connector (2) and the steel structure module unit (3); A central frame (11) is located at the center of the multi-sided frame (1), and six sides of the central frame (11) are fixed with mounting brackets (10) to the six side walls of the multi-sided frame (1). One end of the steel structure module unit (3) is attached to one side of the mounting bracket (10). Each mounting bracket (10) is provided with a positioning component (12) between it and the center frame (11). The positioning component (12) includes a fixed frame (121) fixedly installed between the mounting bracket (10) and the center frame (11). The mounting bracket (10) and the center of the six sides of the center frame (11) are provided with first mounting holes (127). The inner walls of two adjacent first mounting holes (127) are rotatably connected to the same threaded rod (124) through bearings. The fixed frame (121) is provided with a through hole for the threaded rod (124) to pass through. The fixed frame (121) is provided with a clamping structure for clamping the steel structure module unit (3). One end of the threaded rod (124) is provided with the same driving mechanism (4), and the driving mechanism (4) drives the threaded rod (124) to drive the clamping structure to work.

2. The high-strength prefabricated steel structure for buildings according to claim 1, characterized in that, The clamping structure includes two L-shaped clamps (122) symmetrically arranged on the fixed frame (121), and a movable seat (126) is fixed to one end of each L-shaped clamp (122). Two second guide grooves (129) are provided on one side of the fixed frame (121) for the L-shaped clamps (122) to move. First guide grooves (128) are provided at both ends of the fixed frame (121), and traction seats (125) are movably arranged on the inner walls of the two first guide grooves (128). The traction seat (125) has a threaded hole in the middle that is screwed to the threaded rod (124). The traction seat (125) has traction grooves (1211) on both sides. The movable seat (126) has a traction block (1212) that is slidably disposed in the traction groove (1211) on one side. The steel structure module unit (3) has a positioning port (1213) at one end. The other ends of the two L-shaped clamps (122) are engaged in the positioning port (1213).

3. A high-strength prefabricated steel structure for buildings according to claim 2, characterized in that, Both sides of the traction seat (125) and one side of the movable seat (126) are designed as inclined surfaces, and the inclined surface of the movable seat (126) is in contact with the inclined surface of the traction seat (125).

4. A high-strength prefabricated steel structure for buildings according to claim 3, characterized in that, The inner walls of the two second guide grooves (129) are each equipped with multiple slide rails (123), and the L-shaped clamps (122) are each provided with multiple slide grooves (1210) for the slide rails (123) to pass through.

5. A high-strength prefabricated steel structure for buildings according to claim 4, characterized in that, The drive mechanism (4) includes a rotating shaft (43) fixedly installed at the ends of two upper and lower threaded rods (124), and a second driving gear (44) is fixedly installed on the outer wall of the rotating shaft (43). A second driven gear (45) is fixedly installed at one end of each of the four threaded rods (124) on the same plane. The second driven gear (45) meshes with the second driving gear (44). The size of the second driven gear (45) is smaller than that of the second driving gear (44). There is no contact between two adjacent second driven gears (45). A rotating component is provided on the rotating shaft (43).

6. A high-strength prefabricated steel structure for buildings according to claim 5, characterized in that, The rotating assembly includes a second mounting hole opened on the multi-frame (1) and the center frame (11), and a drive shaft (42) is rotatably connected to the inner wall of the second mounting hole. A first driving gear (47) is fixedly installed at one end of the drive shaft (42), and a first driven gear (46) is fixedly installed at the bottom of the outer wall of the rotating shaft (43), and the first driven gear (46) meshes with the first driving gear (47). A knob (41) is fixedly installed at the other end of the rotating shaft (43), and an anti-loosening component (5) for reinforcing the knob (41) is provided on the outer wall of the multi-frame (1).

7. A high-strength prefabricated steel structure for buildings according to claim 6, characterized in that, The anti-loosening component (5) includes a fixing sleeve (51) fixed to the outer wall of the polygonal frame (1), and a through hole (53) is provided on the knob (41). The inner wall of the through hole (53) and the inner wall of the fixing sleeve (51) are connected to the same anti-loosening screw (52), and multiple anti-loosening nuts (54) are screwed to the bottom of the anti-loosening screw (52).

8. A high-strength prefabricated steel structure for buildings according to claim 7, characterized in that, The reinforcement component includes two layers of reinforcement plates (6) evenly distributed on the multi-frame (1) and the connecting seat (2), and the two ends of the reinforcement plate (6) and the connecting seat (2) are provided with insertion holes (9), and the inner walls of the insertion holes (9) are all inserted with reinforcement screws (7). The top end and the bottom end of the steel structure module unit (3) are provided with reinforcement screw holes (13), and the reinforcement screws (7) are screwed into the reinforcement screw holes (13).

9. A high-strength prefabricated steel structure for buildings according to claim 8, characterized in that, The mounting bracket (10), the central frame (11) and the multi-frame (1) are fixedly connected by welding. The multi-frame (1) and the connecting seat (2) are integrally formed of high-strength alloy steel, and the multi-frame (1) and the central frame (11) are both spliced ​​from two shells of the same specification.

10. A high-strength prefabricated steel structure for buildings according to claim 9, characterized in that, The surfaces of the multi-frame (1), connecting seat (2) and steel structure module unit (3) are provided with anti-corrosion coatings, and the anti-corrosion coatings are hot-dip galvanized coatings.

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