Modular steel structure fast assembly joint device and installation method

Abstract

This invention discloses a modular steel structure rapid assembly node device and installation method, including a fixing mechanism and a rapid installation mechanism. The fixing mechanism engages with the supporting column, and the rapid installation mechanism includes an H-shaped steel structure rapid assembly mechanism. The H-shaped steel structure rapid assembly mechanism includes a sliding limit strip, an H-shaped steel structure plug-in seat, and a fixing plate. The sliding limit strip is fixed to the fixing mechanism, and the H-shaped steel structure plug-in seat is slidably connected to the sliding limit strip via a sliding limit rod and is used to connect with the H-shaped steel. The fixing plate is hinged to the plug-in seat and the sliding limit strip. This invention enables flexible node addition, compensates for errors, has a simple structure, and is highly efficient in installation.

Description

Technical fields: This invention relates to the field of steel structure construction technology for petrochemical plants, specifically to a modular steel structure rapid assembly node device and installation method. Background technology: Petrochemical plants are the core carriers of petrochemical production. Their steel structure systems are characterized by large spans, heavy loads, short construction periods, and high levels of explosion-proof and corrosion-resistant properties. With the development of modular construction technology, petrochemical plant steel structures are gradually adopting a construction mode of factory prefabrication and on-site assembly. By standardizing the processing of components such as columns and beams in the factory and transporting them to the site for splicing and installation, the amount of on-site work can be significantly reduced, the construction period can be shortened, and the quality of component processing can be guaranteed at the same time. Among them, the beam-column connection nodes are the core load-bearing components of the steel structure system. Their connection strength, installation efficiency, and adaptability directly determine the structural safety and construction progress of the entire petrochemical plant, especially for the connection of H-beams.

[0001] Therefore, there is an urgent need for a modular steel structure rapid assembly node device, which can help solve the technical problem of the lack of rapid docking H-beam steel node devices in the existing technology. Summary of the Invention: In one embodiment, the present invention provides a modular steel structure rapid assembly node device, which enables the support column to be quickly fixed and assembled with H-shaped steel profiles through the H-shaped steel structure rapid assembly mechanism, thereby helping to solve the technical problem of the lack of rapid docking H-shaped steel node devices in the prior art.

[0002] The modular steel structure rapid assembly node device includes: A fixed mechanism is used to hold and support the column; At least one quick-installation mechanism, with at least one of the quick-installation mechanisms disposed on one side of the fixing mechanism, the quick-installation mechanism including an H-beam steel structure quick-assembly mechanism, the H-beam steel structure quick-assembly mechanism comprising: At least one sliding limit bar is radially arranged along one side of the support column, and one end of the sliding limit bar is fixed to the fixing mechanism; An H-shaped steel structure plug-in seat is provided on one side with a sliding limit rod that matches the sliding limit bar. The sliding limit bar is inserted into the sliding limit rod and can slide along the axial direction. The H-shaped steel structure plug-in seat is also used to connect one end of an H-shaped steel. At least one fixing plate has one end hinged to the H-shaped steel structure plug-in seat, and the other end of the fixing plate is hinged to the sliding limit strip.

[0003] In one embodiment, there are four sliding limit bars arranged at the vertices of a rectangle, and four sliding limit rods, each capable of being inserted into the sliding limit rod of the sleeve structure. The sliding limit bars are provided with multiple first threaded insertion holes along their length, and there are four fixing pieces, each disposed on the H-shaped steel structure insertion seat and different first threaded insertion holes.

[0004] In one embodiment, the sliding limit rod is provided with a second threaded insertion hole, which is used for the hinge of the fixing piece.

[0005] In one embodiment, the fixing mechanism includes fixing sleeves arranged symmetrically on the left and right sides; After the fixing sleeve embraces the support column, the fixing sleeve is fixed to the support column by connecting the fixing bolts to the fixing holes on the fixing sleeve.

[0006] In one embodiment, the H-shaped steel structure rapid assembly mechanism further includes: A pair of semi-rectangular snap-fit ​​frames are connected to one side of the fixed sleeve by protrusions and strip limiting grooves, and the pair of semi-rectangular snap-fit ​​frames have snap-fit ​​grooves; A snap-fit ​​plate is snapped into the snap-fit ​​groove by the two halves of the rectangular snap-fit ​​frame on both sides, and one end of the sliding limit strip is fixed on the snap-fit ​​plate. The two halves of the rectangular snap-fit ​​frame are fastened by the threaded limiting rod on the threaded fixing seat using a bidirectional thread.

[0007] In one embodiment, the H-shaped steel structure plug-in base is provided with an H-shaped steel structure slot for connecting one end of the H-shaped steel. The shape of the H-shaped steel structure slot matches the flange and web of the H-shaped steel structure member; the H-shaped steel structure plug-in seat is provided with at least one locking screw hole that extends into the interior of the H-shaped steel structure slot, and a locking bolt is threaded into each locking screw hole.

[0008] In one embodiment, the sliding limit bar is a rectangular channel steel, and the sliding limit rod is slidably connected to the rectangular groove inside the sliding limit bar; four sliding limit bars are fixedly installed on each of the snap-fit ​​plates.

[0009] In one embodiment, the present invention also provides an installation method for a modular rapid assembly node device for steel structures. Based on the modular rapid assembly node device for steel structures, the installation method includes: At least two separate fixing parts are joined together and fitted into the predetermined position of the support column along the radial direction of the support column, and the fixing bolts are screwed into the preset threaded holes on the support column through the fixing holes. Slide the snap-fit ​​frames on the front, back, left, and right sides of each of the split fixing parts to the preset position along the guide fit structure, then insert the two ends of the snap-fit ​​plate into the snap-fit ​​grooves of the two horizontally adjacent snap-fit ​​frames respectively, and then connect the two horizontally adjacent threaded fixing seats through the threaded limiting rod. Insert each sliding limit rod into the corresponding sliding limit strip, and slide the sliding limit rod to the required extension length so that the first threaded insertion hole is aligned with the second threaded insertion hole; Rotate the fixing plate above the position where the first threaded insertion hole and the second threaded insertion hole are aligned, and rotate the fastening bolt so that the fastening bolt passes through the fixing plate and is simultaneously screwed into the first threaded insertion hole and the second threaded insertion hole. Attached image description: Figure 1 This is an overall schematic diagram of one embodiment of the present invention; Figure 2 This is a schematic diagram of the fixing mechanism structure in another embodiment of the present invention; Figure 3 This is a schematic diagram of a semi-rectangular snap-fit ​​frame and an H-shaped steel structure quick assembly mechanism in another embodiment of the present invention; Figure 4 This is a partial schematic diagram of the semi-rectangular snap-fit ​​frame and the H-shaped steel structure quick assembly mechanism in another embodiment of the present invention; Figure 5 This is a schematic diagram of a semi-rectangular snap-fit ​​frame structure in another embodiment of the present invention; Figure 6 This is a schematic diagram of the snap-fit ​​plate and sliding limit strip structure in another embodiment of the present invention; Figure 7 This is a schematic diagram of the sliding limit rod and H-shaped steel structure plug-in seat in another embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the fixing rod, fixing plate and fastening bolt in another embodiment of the present invention.

[0010] In the diagram: 1. Support column; 2. Fixing mechanism; 201. Fixing sleeve; 202. Fixing hole; 203. Fixing bolt; 3. Quick installation mechanism; 301. Semi-rectangular snap-fit ​​frame; 302. Strip-shaped limiting groove; 303. Threaded fixing seat; 304. Threaded limiting hole; 305. Threaded limiting rod; 306. Snap-fit ​​groove; 307. Snap-fit ​​plate; 4. H-shaped steel structure quick assembly mechanism; 401. Sliding limiting strip; 402. First threaded insertion hole; 403. Sliding limiting rod; 404. Second threaded insertion hole; 405. H-shaped steel structure insertion seat; 4051. Locking screw hole; 4052. Locking bolt; 406. Fixing rod; 407. Fixing plate; 408. Fastening bolt; 409. H-shaped steel structure slot; 5. H-shaped steel structure component. Detailed implementation method: The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the following embodiments are used to illustrate the technical solutions of the present application, and are not intended to limit the scope of protection of the present application.

[0011] Figure 1 This is an overall schematic diagram of one embodiment of the present invention; Figure 2 This is a schematic diagram of the fixing mechanism structure in another embodiment of the present invention; Figure 3 This is a schematic diagram of a semi-rectangular snap-fit ​​frame and an H-shaped steel structure quick assembly mechanism in another embodiment of the present invention; Figure 4 This is a partial schematic diagram of the semi-rectangular snap-fit ​​frame and the H-shaped steel structure quick assembly mechanism in another embodiment of the present invention; Figure 5 This is a schematic diagram of a semi-rectangular snap-fit ​​frame structure in another embodiment of the present invention; Figure 6 This is a schematic diagram of the snap-fit ​​plate and sliding limit strip structure in another embodiment of the present invention; Figure 7 This is a schematic diagram of the sliding limit rod and H-shaped steel structure plug-in seat in another embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the fixing rod, fixing plate and fastening bolt in another embodiment of the present invention.

[0012] like Figures 1 to 8 As shown, a modular steel structure rapid assembly node device includes a support column 1, a fixing mechanism 2 movably installed on the outside of the support column 1, and rapid installation mechanisms 3 provided on the front, back, left, and right sides of the fixing mechanism 2. Each rapid installation mechanism 3 is movably installed with an H-shaped steel structure rapid assembly mechanism 4 on its outside, and each H-shaped steel structure rapid assembly mechanism 4 is movably installed with an H-shaped steel structure component 5 inside. The above five levels of components are assembled sequentially from the inside to the outside to form a symmetrical beam-column connection node whole with the support column 1 as the center and extending in four directions.

[0013] The fixing mechanism 2 includes two fixing sleeves 201 that fit together on the outside of the support column 1. Each fixing sleeve 201 has a fixing hole 202, and a fixing bolt 203 is threaded into each fixing hole 202. The fixing bolt 203 passes through the fixing hole 202 and is threaded to the outer surface of the support column 1. Each quick installation mechanism 3 includes a semi-rectangular snap-fit ​​frame 301, a strip-shaped limiting groove 302, a threaded fixing seat 303, a threaded limiting hole 304, a threaded limiting rod 305, a snap-fit ​​groove 306, and a snap-fit ​​plate 307. The fixed sleeve 201 has a semi-rectangular snap-fit ​​frame 301 slidably connected to its side. A strip-shaped limiting groove 302 is provided on the fixed sleeve 201. Threaded fixing seats 303 are fixedly installed at the top and bottom of the semi-rectangular snap-fit ​​frame 301. Two horizontally adjacent threaded fixing seats 303 are connected by a threaded limiting rod 305. Each semi-rectangular snap-fit ​​frame 301 has a snap-fit ​​groove 306 inside. A snap-fit ​​plate 307 is snapped between each horizontally adjacent semi-rectangular snap-fit ​​frame 301 through the snap-fit ​​groove 306. Each H-shaped steel structure quick assembly mechanism 4 Each includes a sliding limit strip 401, a first threaded insertion hole 402, a sliding limit rod 403, a second threaded insertion hole 404, an H-shaped steel structure insertion seat 405, a fixing rod 406, a fixing piece 407, a fastening bolt 408, and an H-shaped steel structure slot 409. Four sliding limit strips 401 are fixedly installed on each snap-fit ​​plate 307. Each sliding limit strip 401 has multiple first threaded insertion holes 402. A sliding limit rod 403 is slidably connected inside each sliding limit strip 401. The sliding limit rod 403... A second threaded insertion hole 404 is provided. The ends of four sliding limit rods 403 are fixedly connected to an H-shaped steel structure insertion seat 405. A fixing rod 406 is provided on the H-shaped steel structure insertion seat 405. A fixing plate 407 is sleeved on the fixing rod 406. A fastening bolt 408 is rotatably connected to the fixing plate 407. The fastening bolt 408 passes through the fixing plate 407 and is threadedly engaged with one of the first threaded insertion holes 402 and the second threaded insertion hole 404. An H-shaped steel structure slot 409 is provided inside the H-shaped steel structure insertion seat 405.

[0014] This embodiment addresses the technical problem that existing nodes need to be prefabricated as an integral part of the column and cannot be flexibly adjusted in terms of elevation, and explains the operating principle and technical effect of the fixing mechanism 2.

[0015] After the support column 1 arrives at the construction site, according to the construction drawings of the petrochemical plant steel structure and the final layout plan of the pipelines and equipment on site, threaded holes are first drilled at the predetermined elevation position of the support column 1 using a special magnetic drill and tapping tools; after the threaded holes are drilled and pass the quality inspection, the support column 1 is then hoisted and fixed.

[0016] When the two semi-rectangular fixing sleeves 201 are joined together and tightly hugged on the outer surface of the support column 1, their inner walls form surface contact with the outer wall of the support column 1, and the vertical and horizontal loads on the node are evenly transferred to the support column 1 body. After the fixing bolts 203 pass through the fixing holes 202 and are screwed into the threaded holes opened on site in the support column 1, they not only provide axial tensile force to firmly lock the two fixing sleeves 201 on the support column 1, but also bear the horizontal shear force transmitted by the node through the shear resistance of the bolts, so as to prevent the node from vertically slipping and horizontally deflecting.

[0017] This on-site drilling and split-type fixing design completely breaks away from the limitations of traditional integrated prefabrication of nodes and columns. It enables precise installation of nodes across the entire height range of the supporting column 1. Construction personnel can adjust the position of the threaded holes at any time according to the actual site conditions, fully adapting to the complex and ever-changing pipeline and equipment layout requirements of petrochemical plants. This avoids rework problems caused by discrepancies between the factory-prefabricated threaded hole positions and actual site requirements, significantly improving construction flexibility and adaptability. Simultaneously, the on-site drilling utilizes standardized magnetic drilling and tapping processes, ensuring thread accuracy and perpendicularity, and guaranteeing that the connection strength of the fixing bolt 203 meets design requirements.

[0018] This embodiment addresses the technical problems of complex existing node constraint mechanisms and cumbersome installation steps by explaining the operating principle and technical effect of the rapid installation mechanism 3.

[0019] The semi-rectangular snap-fit ​​frame 301 forms a sliding fit with the strip-shaped limiting groove 302 on the fixing sleeve 201 through the protrusion on its inner side. The protrusion and the strip-shaped limiting groove 302 adopt a clearance fit tolerance of H7 / h6, which not only ensures that the semi-rectangular snap-fit ​​frame 301 can smoothly slide and adjust its position along the strip-shaped limiting groove 302, but also restricts the displacement of the semi-rectangular snap-fit ​​frame 301 in the direction perpendicular to the sliding direction.

[0020] When the two ends of the snap-fit ​​plate 307 are respectively inserted into the snap-fit ​​slots 306 of the two horizontally adjacent semi-rectangular snap-fit ​​frames 301, the snap-fit ​​plate 307 and the snap-fit ​​slots 306 form an interference fit, initially realizing the horizontal positioning of the two semi-rectangular snap-fit ​​frames 301; at this time, the thread limit rod 305 of the rotating bidirectional threaded rod structure, because the threads at both ends are turned in opposite directions, will simultaneously pull the two adjacent threaded fixing seats 303 to move towards each other when rotating, thereby driving the two semi-rectangular snap-fit ​​frames 301 to further clamp the snap-fit ​​plate 307, realizing the final locking of the quick installation mechanism 3.

[0021] The locking process requires only three steps: sliding the semi-rectangular locking frame 301, inserting the locking plate 307, and rotating the threaded limit rod 305. It eliminates the need for complex rotating parts and rope assemblies, significantly simplifying the installation process. The installation time of the unidirectional quick-installation mechanism 3 is greatly reduced, perfectly meeting the construction requirements for rapid assembly in petrochemical plants. Furthermore, the purely mechanical insertion + threaded locking structure offers higher reliability, preventing issues such as rope slack and jamming of rotating parts during long-term use, thus significantly improving the service life and safety of the connection point.

[0022] This embodiment addresses the technical problem that existing nodes cannot compensate for prefabrication and construction deviations, and are prone to beam misalignment. It explains the length adjustment principle and technical effect of the H-shaped steel structure rapid assembly mechanism 4.

[0023] The sliding limit bar 401 adopts a rectangular channel steel structure. Its internal rectangular groove forms a sliding fit with the sliding limit rod 403. The upper and lower inner walls and the left and right inner walls of the rectangular groove respectively restrict the vertical and horizontal displacement of the sliding limit rod 403, allowing it to slide only along the length direction of the sliding limit bar 401. This ensures that the H-shaped steel structure plug-in seat 405 always remains horizontal during the adjustment process, preventing tilting during beam installation.

[0024] Multiple first threaded holes 402 spaced along the length of the sliding limit bar 401 form a multi-level adjustment range. The adjustment accuracy of each range is 50mm, and the total adjustment range can reach 300mm, which can cover most factory prefabrication errors and on-site construction deviations.

[0025] When it is necessary to adjust the extension length of the H-shaped steel structure connector 405, slide the sliding limit rod 403 to the desired position, aligning the second threaded insertion hole 404 with the corresponding first threaded insertion hole 402; then rotate the fixing plate 407 sleeved on the fixing rod 406 to directly above the two insertion holes, and rotate the fastening bolt 408 so that it passes through the fixing plate 407, the first threaded insertion hole 402, and the second threaded insertion hole 404 simultaneously and tighten it. The fastening bolt 408 not only provides axial tensile force to firmly lock the sliding limit rod 403 within the sliding limit strip 401, but also bears the vertical and horizontal loads transmitted by the H-shaped steel structure component 5 through its shear resistance, ensuring the connection strength of the node. This telescopic length adjustment structure can effectively compensate for dimensional errors during factory prefabrication and positional deviations during on-site installation, avoiding beam misalignment problems, completely eliminating secondary cutting and welding operations on-site, significantly reducing on-site construction work, and ensuring the overall construction quality of the steel structure.

[0026] This embodiment illustrates the operating principle and overall force coordination mechanism of the node of the present invention in the scenario of simultaneous assembly of multi-directional beams in a petrochemical plant.

[0027] The fixing sleeve 201 has symmetrically arranged strip-shaped limiting grooves 302 on its four sides, allowing for the simultaneous installation of four sets of quick-installation mechanisms 3 and H-shaped steel structure quick-assembly mechanisms 4, enabling the simultaneous assembly of H-shaped steel structure components 5 in four directions of the supporting column 1. The nodal loads in the four directions are transferred to the snap-fit ​​plate 307 through their respective H-shaped steel structure quick-assembly mechanisms 4, then to the semi-rectangular snap-fit ​​frame 301, and finally evenly distributed to the supporting column 1 body through the fixing sleeve 201. Because the fixing sleeve 201 adopts a symmetrical clamping structure, the loads in the four directions can be balanced, preventing bending deformation of the supporting column 1 due to excessive force on one side, and significantly improving the stability of the entire steel structure system.

[0028] After the H-shaped steel structural member 5 is inserted into the H-shaped steel structural slot 409 of the H-shaped steel structural connector 405, the inner wall of the H-shaped steel structural slot 409 fits tightly with the flange and web of the H-shaped steel structural member 5, restricting the vertical and horizontal displacement of the H-shaped steel structural member 5. After tightening the locking bolt 4052, the end of the locking bolt 4052 presses against the surface of the web of the H-shaped steel structural member 5, and the resulting friction can effectively prevent the H-shaped steel structural member 5 from axial movement and rotation, further enhancing the connection rigidity of the node.

[0029] After all components are installed, they are finally tightened in the following order: first, fixing bolt 203; then, threaded limit rod 305; and finally, tightening bolt 408 and locking bolt 4052. This ensures that the preload of all bolts is consistent, avoiding node deformation and stress concentration caused by uneven preload. This multi-directional collaborative assembly and overall force balance design enables the nodes of this invention to meet the construction requirements of large-span, heavy-load steel structures in petrochemical plants, while ensuring construction efficiency and structural safety.

[0030] In summary, this modular steel structure rapid assembly node device and installation method, by pre-setting threaded holes on the support column 1, allows two fixing sleeves 201 to fit together tightly on the outside of the installed support column 1, and the fixing bolts 203 are screwed directly into the pre-set threaded holes through the fixing holes 202. This design eliminates the need for prefabrication of the node as an integral part of the column, enabling flexible installation at any elevation of the support column 1, thereby greatly improving construction flexibility and meeting the node adjustment needs under the complex pipeline and equipment layout of petrochemical plants. Furthermore, by setting a telescopic adjustment structure consisting of a sliding limit strip 401, a sliding limit rod 403, and fastening bolts 408 between the snap-fit ​​plate 307 and the H-shaped steel structure plug-in seat 405, the H-shaped steel structure plug-in seat 405 can slide along the length direction of the sliding limit strip 401, thus providing a length adjustment function. This effectively compensates for factory prefabrication errors and on-site construction deviations, avoiding beam misalignment and on-site secondary processing. Furthermore, by adopting a plug-in mating structure of a semi-rectangular snap-fit ​​frame 301, a snap-fit ​​plate 307, and an H-shaped steel structure plug-in base 405, and using a threaded limit rod 305 and a locking bolt 4052 for locking, the complex rotating parts and rope assemblies are replaced, making the constraint mechanism simple and reliable, significantly reducing manufacturing costs and on-site installation steps, and perfectly meeting the rapid assembly goals pursued by petrochemical plants.

[0031] Beneficial effects Compared with the prior art, the present invention provides a modular steel structure rapid assembly node device and installation method, which has the following beneficial effects: 1. The modular steel structure quick assembly node device, by pre-setting threaded holes on the support column (1), allows two fixing sleeves (201) to be aligned and tightly held on the outside of the installed support column (1), and the fixing bolts (203) are screwed directly into the preset threaded holes through the fixing holes (202). This design allows the node to be prefabricated as an integral part of the column, realizing flexible installation at any elevation position of the support column (1), thereby greatly improving the construction flexibility and meeting the node adjustment needs under the complex pipeline and equipment layout of the petrochemical plant.

[0032] 2. This modular steel structure rapid assembly node device, by setting a telescopic adjustment structure consisting of a sliding limit strip (401), a sliding limit rod (403) and a fastening bolt (408) between the snap-fit ​​plate (307) and the H-shaped steel structure plug-in seat (405), enables the H-shaped steel structure plug-in seat (405) to slide along the length direction of the sliding limit strip (401), thereby having a length adjustment function, effectively compensating for factory prefabrication errors and on-site construction deviations, and avoiding beam misalignment and on-site secondary processing.

[0033] 3. This modular steel structure rapid assembly node device adopts a plug-in mating structure of a semi-rectangular snap-fit ​​frame (301), snap-fit ​​plate (307) and H-shaped steel structure plug-in seat (405), and uses threaded limit rod (305) and locking bolt (4052) for locking, replacing complex rotating parts and rope assemblies. This makes the constraint mechanism simple and reliable, greatly reducing manufacturing costs and on-site installation steps, and perfectly meeting the rapid assembly goal pursued by petrochemical plants.

[0034] In one embodiment, the present invention provides a modular steel structure rapid assembly node device, which enables the support column to be quickly fixed and assembled with H-shaped steel profiles through the H-shaped steel structure rapid assembly mechanism, thereby helping to solve the technical problem of the lack of rapid docking H-shaped steel node devices in the prior art.

[0035] The modular steel structure rapid assembly node device includes: A fixed mechanism is used to hold and support the column; At least one quick-installation mechanism, with at least one of the quick-installation mechanisms disposed on one side of the fixing mechanism, the quick-installation mechanism including an H-beam steel structure quick-assembly mechanism, the H-beam steel structure quick-assembly mechanism comprising: At least one sliding limit bar is radially arranged along one side of the support column, and one end of the sliding limit bar is fixed to the fixing mechanism; An H-shaped steel structure plug-in seat is provided on one side with a sliding limit rod that matches the sliding limit bar. The sliding limit bar is inserted into the sliding limit rod and can slide along the axial direction. The H-shaped steel structure plug-in seat is also used to connect one end of an H-shaped steel. At least one fixing plate has one end hinged to the H-shaped steel structure plug-in seat, and the other end of the fixing plate is hinged to the sliding limit strip.

[0036] In one embodiment, there are four sliding limit bars arranged at the vertices of a rectangle, and four sliding limit rods, each capable of being inserted into the sliding limit rod of the sleeve structure. The sliding limit bars are provided with multiple first threaded insertion holes along their length, and there are four fixing pieces, each disposed on the H-shaped steel structure insertion seat and different first threaded insertion holes.

[0037] In one embodiment, the sliding limit rod is provided with a second threaded insertion hole, which is used for the hinge of the fixing piece.

[0038] In one embodiment, the fixing mechanism includes fixing sleeves arranged symmetrically on the left and right sides; After the fixing sleeve embraces the support column, the fixing sleeve is fixed to the support column by connecting the fixing bolts to the fixing holes on the fixing sleeve.

[0039] In one embodiment, the H-shaped steel structure rapid assembly mechanism further includes: A pair of semi-rectangular snap-fit ​​frames are connected to one side of the fixed sleeve by protrusions and strip limiting grooves, and the pair of semi-rectangular snap-fit ​​frames have snap-fit ​​grooves; A snap-fit ​​plate is snapped into the snap-fit ​​groove by the two halves of the rectangular snap-fit ​​frame on both sides, and one end of the sliding limit strip is fixed on the snap-fit ​​plate. The two halves of the rectangular snap-fit ​​frame are fastened by the threaded limiting rod on the threaded fixing seat using a bidirectional thread.

[0040] In one embodiment, the H-shaped steel structure plug-in base is provided with an H-shaped steel structure slot for connecting one end of the H-shaped steel. The shape of the H-shaped steel structure slot matches the flange and web of the H-shaped steel structure member; the H-shaped steel structure plug-in seat is provided with at least one locking screw hole that extends into the interior of the H-shaped steel structure slot, and a locking bolt is threaded into each locking screw hole.

[0041] In one embodiment, the sliding limit bar is a rectangular channel steel, and the sliding limit rod is slidably connected to the rectangular groove inside the sliding limit bar; four sliding limit bars are fixedly installed on each of the snap-fit ​​plates.

[0042] In one embodiment, the present invention also provides an installation method for a modular rapid assembly node device for steel structures. Based on the modular rapid assembly node device for steel structures, the installation method includes: At least two separate fixing parts are joined together and fitted into the predetermined position of the support column along the radial direction of the support column, and the fixing bolts are screwed into the preset threaded holes on the support column through the fixing holes. Slide the snap-fit ​​frames on the front, back, left, and right sides of each of the split fixing parts to the preset position along the guide fit structure, then insert the two ends of the snap-fit ​​plate into the snap-fit ​​grooves of the two horizontally adjacent snap-fit ​​frames respectively, and then connect the two horizontally adjacent threaded fixing seats through the threaded limiting rod. Insert each sliding limit rod into the corresponding sliding limit strip, and slide the sliding limit rod to the required extension length so that the first threaded insertion hole is aligned with the second threaded insertion hole; Rotate the fixing plate above the position where the first threaded insertion hole and the second threaded insertion hole are aligned, and rotate the fastening bolt so that the fastening bolt passes through the fixing plate and is simultaneously screwed into the first threaded insertion hole and the second threaded insertion hole.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular rapid assembly node device for steel structures, characterized in that, The modular steel structure rapid assembly node device includes: A fixed mechanism is used to hold and support the column; At least one quick-installation mechanism, with at least one of the quick-installation mechanisms disposed on one side of the fixing mechanism, the quick-installation mechanism including an H-beam steel structure quick-assembly mechanism, the H-beam steel structure quick-assembly mechanism comprising: At least one sliding limit bar is radially arranged along one side of the support column, and one end of the sliding limit bar is fixed to the fixing mechanism; An H-shaped steel structure plug-in seat is provided on one side with a sliding limit rod that matches the sliding limit bar. The sliding limit bar is inserted into the sliding limit rod and can slide along the axial direction. The H-shaped steel structure plug-in seat is also used to connect one end of an H-shaped steel. At least one fixing plate has one end hinged to the H-shaped steel structure plug-in seat, and the other end of the fixing plate is hinged to the sliding limit strip.

2. The modular steel structure rapid assembly node device according to claim 1, characterized in that, There are four sliding limit strips arranged at the vertices of a rectangle. There are four sliding limit rods, each capable of being inserted into the sliding limit rod of the sleeve structure. The sliding limit strips have multiple first threaded insertion holes along their length. There are four fixing pieces, each disposed on the H-shaped steel structure insertion seat and on different first threaded insertion holes.

3. The modular steel structure rapid assembly node device according to claim 2, characterized in that, The sliding limit rod has a second threaded insertion hole, which is used for the hinge of the fixing plate.

4. The modular steel structure rapid assembly node device according to claim 3, characterized in that, The fixing mechanism includes fixing sleeves arranged symmetrically on the left and right sides; After the fixing sleeve embraces the support column, the fixing sleeve is fixed to the support column by connecting the fixing bolts to the fixing holes on the fixing sleeve.

5. The modular steel structure rapid assembly node device according to claim 4, characterized in that, The rapid assembly mechanism for the H-shaped steel structure also includes: A pair of semi-rectangular snap-fit ​​frames are connected to one side of the fixed sleeve by protrusions and strip limiting grooves, and the pair of semi-rectangular snap-fit ​​frames have snap-fit ​​grooves; A snap-fit ​​plate is snapped into the snap-fit ​​groove by the two halves of the rectangular snap-fit ​​frame on both sides, and one end of the sliding limit strip is fixed on the snap-fit ​​plate. The two halves of the rectangular snap-fit ​​frame are fastened by the threaded limiting rod on the threaded fixing seat using a bidirectional thread.

6. The modular steel structure rapid assembly node device according to claim 5, characterized in that, The H-shaped steel structure plug-in base is equipped with an H-shaped steel structure slot for connecting one end of the H-shaped steel. The shape of the H-shaped steel structure slot matches the flange and web of the H-shaped steel structure member; the H-shaped steel structure plug-in seat is provided with at least one locking screw hole that extends into the interior of the H-shaped steel structure slot, and a locking bolt is threaded into each locking screw hole.

7. The modular steel structure rapid assembly node device according to claim 6, characterized in that, The sliding limit bar is a rectangular channel steel, and the sliding limit rod is slidably connected to the rectangular groove inside the sliding limit bar; four sliding limit bars are fixedly installed on each of the snap-fit ​​plates.

8. An installation method for a modular steel structure rapid assembly node device, characterized in that, Based on the modular steel structure rapid assembly node device as described in claim 7, the installation method includes: At least two separate fixing parts are joined together and fitted into the predetermined position of the support column along the radial direction of the support column, and the fixing bolts are screwed into the preset threaded holes on the support column through the fixing holes. Slide the snap-fit ​​frames on the front, back, left, and right sides of each of the split fixing parts to the preset position along the guide fit structure, then insert the two ends of the snap-fit ​​plate into the snap-fit ​​grooves of the two horizontally adjacent snap-fit ​​frames respectively, and then connect the two horizontally adjacent threaded fixing seats through the threaded limiting rod. Insert each sliding limit rod into the corresponding sliding limit strip, and slide the sliding limit rod to the required extension length so that the first threaded insertion hole is aligned with the second threaded insertion hole; Rotate the fixing plate above the position where the first threaded insertion hole and the second threaded insertion hole are aligned, and rotate the fastening bolt so that the fastening bolt passes through the fixing plate and is simultaneously screwed into the first threaded insertion hole and the second threaded insertion hole.

9. The installation method of the modular steel structure rapid assembly node device according to claim 8, characterized in that, Before the step of rotating the fixing plate above the position where the first threaded insertion hole and the second threaded insertion hole are aligned, and rotating the fastening bolt so that the fastening bolt passes through the fixing plate and is simultaneously screwed into the first threaded insertion hole and the second threaded insertion hole, the method further includes: Insert the H-shaped steel structure component into the H-shaped steel structure slot of the H-shaped steel structure connector and tighten the locking bolts.

10. The installation method of the modular steel structure rapid assembly node device according to claim 9, characterized in that, After the step of inserting the H-shaped steel structural member into the H-shaped steel structural slot of the H-shaped steel structural connector and tightening the locking bolt, the method further includes: Tighten all the fastening bolts, fixing bolts and locking bolts.

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