Fabricated building steel structure connecting component and using method thereof

Abstract

The invention discloses a fabricated building steel structure connecting component and a using method thereof. The fabricated building steel structure connecting component comprises a rectangular frame pipe, and a plurality of locking holes are formed in the inner wall of the rectangular frame pipe; positioning blocks are respectively arranged on the outer walls of the rectangular frame pipes; the cross beam is provided with a positioning head matched with the positioning block; the right-angle plate groups are arranged between the adjacent cross beams, so that the end parts of the two adjacent cross beams form a triangular connecting structure; the beam column connecting pipe communicates with the rectangular frame pipe, and a beam column body is detachably connected to the beam column connecting pipe; the self-locking mechanism comprises a push plate connected with the beam column connecting pipe through an elastic telescopic structure, a guide rod fixed to one side of the beam column connecting pipe through a connecting piece, two locking blocks symmetrically arranged on the guide rod and a connecting rod. The problem that bolts are difficult to install smoothly due to accumulated deviation in the process that a plurality of cross beams are installed on a rectangular frame pipe can be solved, and meanwhile the problem that the construction difficulty is large due to the fact that the space of an existing integrated beam column at a connecting joint is narrow is solved.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, and in particular to a prefabricated building steel structure connection component and its usage method. Background Technology

[0002] Prefabricated steel structure connection components are core parts that ensure the integrity and safety of the building. They function similarly to the "joints" of a building, efficiently and reliably connecting prefabricated components such as beams, columns, and slabs into a stable whole. Currently, commonly used connection methods mainly include bolting and welding: bolting (especially high-strength bolting) offers advantages such as convenient construction and controllable quality, making it key to achieving "dry construction" and rapid assembly; while welding creates rigid nodes with high load-bearing capacity, typically used for manufacturing large components in factories.

[0003] However, existing prefabricated steel structure connection components still have the following shortcomings: For cases where beams need to be connected around the central frame tube, in order to improve the overall connection between the four beams, the beams are usually fixed to the central frame tube with bolts, and then bolts are used in conjunction with other components to connect adjacent beams. In this case, bolt holes are reserved at the corresponding bolt installation points. However, positioning deviations are prone to occur during on-site installation of components. These deviations accumulate at the connection points, making it difficult for high-strength bolts to be inserted smoothly, or even forcing the holes to be enlarged, which seriously affects the connection quality and structural safety. Traditional structural connection components often use integrated beams and columns. During installation, the connection nodes are usually located in the core area where beams and columns intersect. The space is narrow, making it difficult for workers to operate and tools to reach in, resulting in high bolt tightening difficulty and increased time consumption.

[0004] In view of this, it is necessary to design a prefabricated building steel structure connection component and its usage method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated building steel structure connection component and its usage method, so as to solve the problem that bolts are difficult to install smoothly due to cumulative deviation during the installation of multiple beams on a rectangular frame tube, improve the overall connection between the rectangular frame tube and the beams, enhance the structural stability and load-bearing capacity, and at the same time solve the problem of high construction difficulty caused by narrow space at the connection nodes of existing integrated beams and columns.

[0006] To achieve the above-mentioned objectives, the present invention provides a prefabricated building steel structure connection component, comprising: A rectangular frame tube, wherein the interior of the rectangular frame tube is hollow and both the top and bottom are open, and a plurality of locking holes are provided on the inner wall of the rectangular frame tube; positioning blocks are provided on the outer wall of the rectangular frame tube respectively. A crossbeam, one end of which is provided with a positioning head that matches the positioning block, such that after the positioning heads of adjacent crossbeams are installed on the corresponding positioning blocks, a right-angle region is formed between the two positioning heads. A right-angle plate assembly is set in the right-angle region, so that the ends of two adjacent crossbeams form a triangular connection structure; A beam-column connector is connected to the rectangular frame tube, and the end of the beam-column connector away from the rectangular frame tube is detachably connected to the beam-column body; and The self-locking mechanism includes a push plate connected to the beam-column connector via an elastic telescopic structure, a guide rod fixed to the side of the beam-column connector near the rectangular frame tube via a connector, two locking blocks symmetrically arranged on the guide rod, and a connecting rod for controlling the movement of the two locking blocks in the same or opposite directions as the push plate moves. When the beam-column body is installed on the beam-column connector, the push plate is forced to compress the elastic telescopic mechanism and the connecting rod drives the two locking blocks to move in opposite directions until they are engaged in the corresponding locking holes of the rectangular frame tube and locked.

[0007] As a further improvement of the present invention, the positioning block is provided with a plurality of vertical through slots at intervals; the width of the vertical through slots gradually decreases along the direction close to the rectangular frame tube.

[0008] As a further improvement of the present invention, the positioning block and the positioning head are respectively provided with horizontal holes for the fixing member to pass through.

[0009] As a further improvement of the present invention, the right-angle plate assembly is detachably mounted on the positioning head, including a first vertical plate and a second vertical plate perpendicularly connected to the first vertical plate, and a connecting plate is also provided between the two vertical plates; the vertical plates are pre-drilled with reserved holes at the positions corresponding to the horizontal holes of the positioning head.

[0010] As a further improvement of the present invention, a fixing block is provided at one end of the beam-column connector near the rectangular frame tube, and a movable through groove is provided on the fixing block for the connecting rod to extend into the rectangular frame tube.

[0011] As a further improvement of the present invention, the elastic telescopic structure includes a vertical rod with one end fixed to the push plate and the other end connected to the fixed block by a reciprocating elastic element.

[0012] As a further improvement of the present invention, the connecting rod includes two rods, one end of which is connected to the middle of the push plate via the same rotating joint, and the other end of which is connected to the corresponding locking block via a rotating joint.

[0013] As a further improvement of the present invention, a support structure is also provided between adjacent crossbeams. The support structure includes support plates symmetrically arranged on adjacent crossbeams. The two support plates are connected by elastic support members, so that the adjacent crossbeams and the support structure together form a triangular structure.

[0014] As a further improvement of the present invention, it also includes a shock-absorbing damper with one end connected to the beam-column body and the other end connected to the bottom surface of the beam.

[0015] The present invention also provides a method for using the aforementioned prefabricated building steel structure connection component, comprising the following steps: S1. Place the beam-column connector with the rectangular frame tube on the beam-column body so that the push plate abuts against the beam-column body and moves under force to compress the elastic telescopic mechanism. At the same time, the connecting rod drives the two locking blocks to move in opposite directions to engage in the corresponding locking holes of the rectangular frame tube. S2. Insert crossbeam one and crossbeam two into their corresponding positioning blocks, and attach right-angle plate assembly one between the positioning heads of the two crossbeams. After adjusting the upper and lower positions of the crossbeams, use a temporary support frame to fix the crossbeams. Then attach right-angle plate assembly two to the other side of crossbeam one. Use fasteners to simultaneously fix crossbeam one to the central frame tube and right-angle plate assembly one and right-angle plate assembly two. Fix crossbeam two to the central frame tube and right-angle plate assemblies on both sides of crossbeam two in the same way as crossbeam one. After the remaining crossbeams are inserted into the corresponding positioning blocks, their orientation is corrected by attaching them to the right-angle plate assemblies located on the adjacent crossbeams. Then, the crossbeams are fixed using temporary support frames. Finally, fasteners are used to fix the crossbeams to the central frame tube and the right-angle plate assemblies on both sides of the crossbeams.

[0016] The beneficial effects of this invention are: 1. This invention, by setting positioning blocks corresponding to the perimeter of the rectangular frame tube and connecting them to the crossbeams, utilizes the cooperation between the positioning blocks and positioning heads to initially position the crossbeams and the rectangular frame tube. Furthermore, it facilitates the use of fasteners to fix the crossbeams and the rectangular frame tube. Additionally, by setting right-angle plate assemblies between adjacent positioning heads, the right-angle area formed between the positioning heads of adjacent crossbeams is utilized. During the installation of the crossbeams and rectangular frame tube, the right-angle plate assemblies are used to correct the crossbeams. Simultaneously, fasteners can be used to simultaneously pass through the positioning blocks, positioning heads, and right-angle plate assemblies, quickly connecting adjacent crossbeams to form an integral structure. This creates a triangular connection at the ends of adjacent crossbeams, thereby enhancing the overall connection integrity between multiple crossbeams and the rectangular frame tube, improving structural stability and load-bearing capacity. It also solves the problem of cumulative deviations during installation causing difficulties in smoothly inserting fasteners, or even forcing the hole to be enlarged. This achieves the effects of improving connection accuracy, ensuring smooth insertion of fasteners, and improving construction efficiency.

[0017] 2. This invention segments the beams and columns, and by setting a self-locking mechanism inside the beam-column connector that completes the connection between the beam-column connector and the rectangular frame tube, it solves the problems of narrow space at the connection node, inconvenience for workers, and difficulty in inserting tools in integrated beam-columns, thus achieving the effects of rapid installation and disassembly and reduced construction difficulty. Attached Figure Description

[0018] Figure 1 Structural diagram of steel structure connection components for prefabricated buildings Figure 1 .

[0019] Figure 2 Structural diagram of steel structure connection components for prefabricated buildings Figure 2 .

[0020] Figure 3 This is a partial disassembly diagram of the steel structure connection components of a prefabricated building.

[0021] Figure 4 This is a schematic diagram showing the breakdown of the beam-column body, beam-column connectors, and rectangular frame tubes.

[0022] Figure 5 This is a schematic diagram showing the connection between beams, columns, crossbeams, and rectangular frame tubes.

[0023] Figure 6 This is a schematic diagram of the internal structure of the beam-column joint.

[0024] Figure 7 This is a top view of the section where the beam and column are joined.

[0025] Figure 8 This is a structural diagram of the supporting structure.

[0026] Figure Labels 10. Rectangular frame tube; 11. Locking hole; 12. Positioning block; 121. Vertical through groove; 122. Fixing component; 20. Horizontal beam; 21. Positioning head; 22. Limiting plate; 23. Right angle area; 24. Reinforcing frame; 241. Horizontal beam one; 242. Horizontal beam two; 243. Horizontal beam three; 244. Horizontal beam four; 31. First vertical plate; 32. Second vertical plate; 33. Connecting plate; 341. Right angle plate group one; 342. Right angle plate group two; 343. Right angle plate group three; 344. Right angle plate group four; 41. Beam-column connector; 411. Fixing block; 412. Moving through slot; 413. First bolt hole; 42. Beam-column body; 421. Connector; 422. Second bolt hole; 51. Push plate; 521. Vertical rod; 522. Spring; 523. Groove; 53. Guide rod; 531. Connector; 54. Locking block; 541. Body part; 542. Locking head; 543. Sliding block; 55. Rod body; 61. Support plate; 611. Connecting part; 612. Angled part; 62. Mounting block; 631. Crossbar; 632. Limiting block; 633. Elastic element; 70. Vibration damper. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0029] Additionally, it should be noted that 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 process, method, article, or apparatus.

[0030] like Figures 1-8 As shown, the present invention provides a prefabricated building steel structure connection component, comprising: A rectangular frame tube 10 is hollow inside and open at both the top and bottom. Several locking holes 11 are provided on the inner wall of the rectangular frame tube 10. Positioning blocks 12 are provided on the outer wall of the rectangular frame tube 10. A crossbeam 20, one end of which is provided with a positioning head 21 that matches the positioning block 12, such that after the positioning heads 21 of adjacent crossbeams 20 are installed on the corresponding positioning blocks 12, a right-angle region 23 is formed between the two positioning heads 21. A right-angle plate assembly is provided in the right-angle region 23, such that two adjacent positioning blocks 12 form a triangular connection structure; A beam-column connector 41 is connected to the rectangular frame tube 10, and the end of the beam-column connector 41 away from the rectangular frame tube 10 is detachably connected to a beam-column body 42; and The self-locking mechanism includes a push plate 51 connected to the beam-column connector 41 via an elastic telescopic structure, a guide rod 53 fixed to the side of the beam-column connector 41 near the rectangular frame tube 10 via a connector 531, two locking blocks 54 symmetrically arranged on the guide rod 53, and a connecting rod for controlling the movement of the two locking blocks 54 in the same or opposite directions as the push plate 51 moves. When the beam-column body 42 is installed on the beam-column connector 41, the push plate 51 is forced to compress the elastic telescopic mechanism and drives the two locking blocks 54 to move in opposite directions through the connecting rod until they are locked in the corresponding locking holes 11 of the rectangular frame tube 10.

[0031] For example, such as Figure 3 As shown, four positioning blocks 12 are provided. The four positioning blocks 12 are distributed on the four outer walls of the rectangular frame tube 10. Several vertical through slots 121 are provided on the positioning blocks 12 at intervals, and the width of the vertical through slots 121 gradually decreases along the direction close to the rectangular frame tube 10.

[0032] The positioning head 21 is structured to correspond to the positioning block 12, so that the positioning head 21 can be plugged into the positioning head 21; the positioning block 12 and the positioning head 21 are respectively provided with horizontal holes for the fixing member 122 to pass through.

[0033] By setting the vertical through slot 121 to gradually decrease in width along the direction close to the rectangular frame tube 10, the positioning block 12 and the positioning head 21 can be tightly connected.

[0034] For example, such as Figure 2 As shown, the right-angle plate assembly is detachably mounted on the positioning head 21, including a first vertical plate 31 and a second vertical plate 32 perpendicularly connected to the first vertical plate 31. A connecting plate 33 is also provided between the two vertical plates. Pre-drilled holes are pre-drilled on the vertical plates corresponding to the horizontal holes of the positioning head 21, so that the fasteners 122 can pass through the vertical plates, the positioning head 21 and the positioning block 12 in sequence to quickly complete the connection of the ends of adjacent crossbeams 20.

[0035] In this example, the connecting plate 33 is a triangular plate located at the bottom of the vertical plate. In other examples, the connecting plate 33 can be installed in the middle or upper part of the vertical plate.

[0036] The arrangement of two vertically connected plates in the right-angle plate assembly utilizes the right-angle region 23 formed between the positioning heads 21 of adjacent beams 20 to correct the beams 20 during the installation of the beams 20 and the rectangular frame tube 10. Simultaneously, the fasteners 122 pass through the positioning block 12, positioning head 21, and right-angle plate assembly, quickly connecting adjacent beams 20 to form an integral structure. This creates a triangular connection at the ends of adjacent beams 20, enhancing the overall connection between multiple beams 20 and the rectangular frame tube 10, improving structural stability and load-bearing capacity. It also solves the problem of cumulative deviations during installation causing the fasteners 122 to be difficult to insert smoothly, or even requiring forced hole enlargement. This achieves improved connection accuracy, ensures smooth insertion of the fasteners 122, and increases construction efficiency.

[0037] For example, such as Figure 4 As shown, the beam-column connector 41 is detachably connected to the rectangular frame tube 10. A fixing block 411 is provided on the beam-column connector 41, with one end extending outside the connector 41. The outer diameter of the fixing block 411 matches the inner diameter of the rectangular connector 10, creating a locking area at one end of the beam-column connector 41 that matches the rectangular frame tube 10. The fixing block extends into the rectangular frame tube 10, and the locking area abuts against the outer periphery of the rectangular frame tube 10, thus initially completing the connection between the rectangular frame tube 10 and the beam-column connector 41.

[0038] The fixed block 411 is provided with a movable through slot 412 for the connecting rod to extend into the rectangular frame, so that the beam-column pipe 41 and the rectangular frame pipe 10 are connected through the movable through slot 412.

[0039] For example, such as Figure 6 As shown, the elastic telescopic structure includes a vertical rod 521 with one end fixed to the push plate 51 and the other end connected to the fixed block 411 via a reciprocating elastic member. The reciprocating elastic member includes a groove 523 provided on the side of the fixed block 411 facing the push plate 51 and a spring 522 with one end connected to the groove 523 and the other end connected to the vertical rod 521 extending into the groove 523. The diameter of the opening of the groove 523 is smaller than the diameter of the vertical rod 521, so that the end of the vertical rod 521 is confined in the groove 523.

[0040] The connecting rod includes two rod bodies 55, one end of which is connected to the middle of the push plate 51 via a common revolute joint, and the other end of which is connected to a corresponding locking block 54 via a revolute joint. For example... Figure 6 As shown, the two connecting rods are V-shaped, and correspondingly, the movable slot 412 on the fixed block 411 is also V-shaped; the guide rod 53 is located in the middle of the beam-column connector 41 near the rectangular frame tube 10, and one end of the connector 531 is connected to the middle of the guide rod 53, while the other end is connected to the fixed block 411 located in the middle of the V-shaped movable slot 412. Figure 7 ).

[0041] For example, such as Figure 4 and Figure 5 As shown, the beam-column body 42 is provided with a connector 421 that matches the beam-column connecting pipe 41. When the connector 421 is inserted into the beam-column connecting pipe 41 until the beam-column body 42 is engaged with the beam-column connecting pipe 41, the connector 421 pushes the push plate 51 to move, compressing the spring 522 and causing the two connecting rods to move in opposite directions, so that the locking block 54 moves in opposite directions along the guide rod 53 to be inserted into the corresponding locking hole 11, thereby locking the beam-column part with the rectangular frame tube 10. When disassembly is required, the beam-column body 42 is moved out of the beam-column connecting pipe 41. At this time, under the action of the restoring force of the spring 522, the push plate 51 is moved away from the rectangular frame tube 10 in the opposite direction. The linkage moves in the same direction, causing the locking block 54 to move out of the locking hole 11. This allows the structure's own weight to achieve self-locking between the rectangular frame tube 10 and the beam and column. Specifically, for the beam and column above the rectangular frame tube 10, the weight of the beam and column causes the beam and column body 42 to engage with the beam and column connecting pipe 41, while simultaneously enabling the self-locking mechanism to lock itself, thus completing the connection between the beam and column and the rectangular frame tube 10. For the beam and column below the rectangular frame tube 10, the weight of the rectangular frame tube 10 and the structure above it is used to keep the push plate 51 in the beam and column connecting pipe 41 below the rectangular frame tube 10 under pressure. The spring 522 drives the locking block 54 to be in a locked state.

[0042] The beam-column connector 41 has a first bolt hole 413 pre-drilled on it, and the connector 421 of the beam-column body 42 has a corresponding second bolt hole 422 pre-drilled on it, so that after the beam-column body 42 and the beam-column connector 41 are snapped together, the beam-column connector 41 and the beam-column body 42 can be further connected and fixed with bolts.

[0043] For example, such as Figure 6 As shown, the locking block 54 includes a body part 541 connected to the guide rod 53 via a slider 543. The body part 541 is provided with a locking head 542 that matches the shape of the locking hole 11 at a position away from the center of the guide rod 53. The body part 541 is also connected to the rod body 55 via a rotating joint.

[0044] For example, such as Figure 8 As shown, the crossbeam 20 is an I-beam, and a limit plate 22 is provided in the middle of the crossbeam 20.

[0045] A support structure is also provided between adjacent crossbeams 20. The support structure includes support plates 61 symmetrically arranged on adjacent crossbeams 20. The two support plates 61 are connected by elastic support members, so that the adjacent crossbeams 20 and the support structure together form a triangular structure. In this example, the support plate 61 includes a connecting part 611 for abutting against the limiting plate 22 and an inclined part 612 connected to the connecting part 611 at a certain angle. An installation block 62 is provided at the end of the inclined part 612 away from the connecting part 611. The elastic support member includes a crossbar 631 passing through the installation blocks 62 of the two support plates 61, so that the crossbar 631 is divided into three segments by the two installation blocks 62. Limiting blocks 632 are provided at both ends of the crossbar 631. An elastic member 633 is fixedly provided in each of the three segments of the crossbar 631. The extension and contraction direction of the elastic member 633 is parallel to the crossbar 631.

[0046] For example, a damping device 70 is also provided between the beam-column body 42 and the crossbeam 20. Both ends of the damping device 70 are fixed to the side wall of the beam-column body 42 and the bottom surface of the crossbeam 20 respectively in a detachable connection manner.

[0047] For example, the end of the crossbeam 20 away from the rectangular frame tube 10 is detachably connected to a reinforcing frame 24. The shape of the reinforcing frame 24 matches the I-shaped structure of the crossbeam 20, so that when the crossbeam 20 needs to be extended, the reinforcing frame 24 can be used to lock and fix the two crossbeams 20, extending the length of the crossbeam 20 while ensuring the alignment and overall firmness of the crossbeam 20 connection.

[0048] This invention also provides a method for using prefabricated building steel structure connecting components, taking the rectangular frame tube 10 as an example where beams and columns need to be connected at both the top and bottom, including the following steps: S1. Before construction, clean the installation site to ensure the work surface is flat and free of obstacles. Check the size, specifications and integrity of all components to confirm that there is no deformation, rust or damage. According to the design drawings, determine the installation position and direction of the beam and column body 42, and use measuring tools such as a total station or level to accurately position it to ensure that the verticality and horizontality of the beam and column body 42 meet the specifications. After that, install the beam and column body 42. S2. Connect the rectangular frame tube 10 to the beam-column connector 41. Then, hoist the integral structure formed by the beam-column connector 41 and the rectangular frame tube 10 to the beam-column connector 41 and insert it into the beam-column body 42. At this time, the push plate 51 abuts against the beam-column body 42 and moves under force to squeeze the elastic telescopic mechanism. At the same time, the connecting rod drives the two locking blocks 54 to move in opposite directions to engage in the corresponding locking holes 11 of the rectangular frame tube 10. Then, use bolts to fix the beam-column connector 41 and the beam-column body 42. S3, such as Figure 3 As shown, insert two adjacent crossbeams 241 and 242 into their corresponding positioning blocks 12, and attach right-angle plate group 341 between the positioning heads 21 of the two crossbeams 20. After adjusting the vertical position of the crossbeams 20, fix the crossbeams 20 with a temporary support frame. Then attach right-angle plate group 342 to the other side of crossbeam 241. Use fastener 122 to simultaneously fix crossbeam 241 to the central frame tube, as well as right-angle plate group 341 and right-angle plate group 342. Attach right-angle plate group 343 to the other side of crossbeam 242. Use fastener 122 to simultaneously fix crossbeam 242 to the central frame tube, as well as right-angle plate group 341 and right-angle plate group 343. Insert the crossbeam 243 into the corresponding positioning block 12 and attach one side of it to the right angle plate assembly 343. Attach the right angle plate assembly 344 to the other side of the crossbeam 243. Use the fastener 122 to simultaneously fix the crossbeam 243 to the central frame tube, as well as the right angle plate assembly 343 and the right angle plate assembly 344. Insert the crossbeam 244 into the corresponding positioning block 12, and make its two sides fit the right angle plate group 344 and the right angle plate group 341. Use the fastener 122 to simultaneously fix the crossbeam 244 to the central frame tube, as well as the right angle plate group 341 and the right angle plate group 344. S4. Install another beam-column connector 41 above the rectangular frame tube 10, and then insert the beam-column body 42 into the top of the beam-column connector 41 so that the beam-column body 42 pushes the push plate 51 to move the locking block 54 during the process of inserting the beam-column body 42 into the beam-column connector 41 to lock the beam-column connector 41 and the rectangular frame tube 10. Then use bolts to fix the beam-column connector 41 and the beam-column body 42. S5. Install a support structure between adjacent crossbeams 20, specifically: compress the elastic element 633 to make the two support plates 61 retract inward, place the support plates 61 between adjacent crossbeams 20, and then release the elastic element 633 so that the connecting part 611 of the two support plates 61 extends into the I-beam and abuts against the limiting plate 22. S6. Install a damper 70 between the side wall of the beam-column body 42 and the bottom surface of the crossbeam 20.

[0049] Specifically, during the installation of the crossbeam 20, the right-angle plate assembly is used as a correction component and, in conjunction with the sequential installation of the crossbeam 20, the adjacent crossbeams 20 can maintain a relatively perpendicular state, thus solving the problem that the fastener 122 is difficult to insert smoothly due to accumulated deviations during installation, or even forced to enlarge the hole.

[0050] Specifically, the support structure can further improve the connection stability of adjacent beams 20, and the elastic element 633 can achieve the effect of shock absorption.

[0051] The damper 70 is used to improve the connection stability between the beam-column body 42 and the crossbeam 20, and to provide a certain degree of shock absorption.

[0052] 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.

Claims

1. A fabricated building steel structure connecting member, characterized by, The utility model provides a kind of self-locking mechanism for rectangular frame tube, which comprises a rectangular frame tube, a beam column connector, a push plate connected to the beam column connector via an elastic extension structure, a guide rod fixed to the beam column connector near the rectangular frame tube via a connecting piece, two locking blocks symmetrically arranged on the guide rod, and a connecting rod for controlling the two locking blocks to move in the same direction or opposite directions when the push plate moves. The positioning block is provided with a plurality of vertical through-slots at intervals. The positioning block and the positioning head are provided with horizontal holes corresponding to the fixing pieces. The right-angle plate group is detachably arranged on the positioning head and comprises a first vertical plate and a second vertical plate connected perpendicularly to the first vertical plate. The beam column connector is provided with a fixed block near the rectangular frame tube, and the fixed block is provided with a moving through-slot for the connecting rod to extend into the rectangular frame tube. The elastic extension structure comprises a vertical rod fixed at one end to the push plate and connected at the other end to the fixed block via a reciprocating elastic member.

2. The prefabricated building steel structure connecting component according to claim 1, characterized in that: The connecting rod comprises two rod bodies connected at one end to the middle of the push plate via the same rotary pair and at the other end to the corresponding locking blocks via rotary pairs.

3. The prefabricated building steel structure connecting member according to claim 2, characterized in that: A support structure is arranged between adjacent beams, and the support structure comprises support plates symmetrically arranged on the adjacent beams and connected by elastic support members, so that the adjacent beams and the support structure form a triangular structure together.

4. The prefabricated building steel structure connecting member according to claim 3, characterized in that: A shock absorber is further included, which is connected at one end to the beam column body and at the other end to the bottom surface of the beam.

5. The prefabricated building steel structure connecting member according to claim 1, characterized in that: The utility model comprises the following steps:

6. The prefabricated building steel structure connecting member according to claim 5, characterized in that: S1, place the beam column connector connected to the rectangular frame tube on the beam column body, so that the push plate abuts against the beam column body and moves under stress to compress the elastic extension structure, and simultaneously drive the two locking blocks to move in opposite directions to be engaged in the corresponding locking holes of the rectangular frame tube via the connecting rod; 7. The prefabricated building steel structure connecting member according to claim 5, characterized in that: S2, insert beam one and beam two into the corresponding positioning blocks, respectively, and attach right-angle plate group one between the positioning heads of the two beams, adjust the up-down orientation of the beams, and then use temporary support frames to fix the beams, after that, attach right-angle plate group two on the other side of beam one, and simultaneously complete the fixation of beam one and the center frame tube, as well as right-angle plate group one and right-angle plate group two using fixing pieces; complete the fixation of beam two and the center frame tube, as well as the right-angle plate groups on both sides of beam two in the same way as beam one.

8. The prefabricated building steel structure connecting member according to claim 1, characterized in that: ​ 9. The prefabricated building steel structure connecting member according to claim 1, characterized in that: ​ 10. A method of using the fabricated building steel structure connecting member according to claim 1, characterized by, ​ ​ ​ After the remaining cross beams are inserted into the corresponding positioning blocks, the orientation of the cross beams is corrected by fitting the right-angle plate sets on the adjacent cross beams, and then the cross beams are fixed using temporary support frames. Subsequently, the fixation of the cross beams to the center frame tube and the right-angle plate sets on both sides of the cross beams is completed using fixation members.

Images