Prefabricated building beam-column rapid connecting joint

Abstract

This utility model discloses a quick-connection node for prefabricated building beams and columns, including a steel column, an I-beam, and a connecting seat. The connecting seat is fixed to the outer wall of the steel column by four sets of first bolts. Two sets of slidable mounting seats are symmetrically arranged inside the connecting seat. Each mounting seat has a groove, and connecting blocks are slidably installed on the upper and lower sides of the groove. An adjusting seat is centrally located inside the groove, and a nut is rotatably installed inside the adjusting seat. Both ends of the nut have screws. A screw hole is provided on the connecting block near the nut, and the screws are screwed into the screw hole. This utility model can flexibly adapt to the installation of I-beams of different sizes through adjustable connecting blocks and mounting seats, eliminating the need for a large number of specialized connecting components and significantly improving the versatility of the node. At the same time, the multiple fixing structures and anti-loosening, high-strength connection design ensure the stability and safety of the beam-column connection, enabling it to withstand larger loads to meet building structural requirements.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a quick connection node for beams and columns in prefabricated buildings. Background Technology

[0002] In the field of prefabricated buildings, beam-column connection nodes are key components to ensure the stability and safety of building structures. Their connection efficiency, versatility, and reliability directly affect the overall construction progress and building quality.

[0003] Currently, traditional prefabricated building beam-column connection nodes are mostly fixed using special connectors. These connectors are often only suitable for beams and columns of specific specifications. When facing I-beams of different sizes, it is necessary to replace them with corresponding special connectors. This results in the need to stock a large number of different types of connectors during construction, which not only increases construction costs but also reduces the flexibility and versatility of construction, making it difficult to adapt to diverse engineering needs.

[0004] Meanwhile, existing beam-column connection nodes have certain deficiencies in terms of stability and safety. Some connection nodes are fixed only by a single bolt connection or welding method, which can easily lead to problems such as loosening of the connection and insufficient load-bearing capacity when used for a long time or subjected to large loads.

[0005] For example, the screws in some adjustment structures are prone to loosening under the influence of factors such as vibration, and the connection strength of some connecting parts is limited, making it difficult to meet the requirements of building structures for high load-bearing capacity, thus posing a hidden danger to building safety.

[0006] In addition, the adjustment and maintenance process of traditional connection nodes is relatively cumbersome. The position adjustment of the connection block and the mounting base often requires the use of professional and complex equipment, which is difficult to operate and time-consuming. In the later maintenance or when beam and column components need to be replaced, the disassembly of the connection parts is difficult, and the process of adjusting or repairing the connection node is complicated. This not only increases the maintenance cost, but also affects the normal use of the building.

[0007] Therefore, how to provide a quick connection node for beams and columns in prefabricated buildings is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] One objective of this invention is to provide a quick-connection node for prefabricated building beams and columns. This invention can flexibly adapt to the installation of I-beams of different sizes through adjustable connecting blocks and mounting bases, without relying on a large number of special connecting parts, thus significantly improving the versatility of the node. At the same time, with the help of multiple fixing structures and anti-loosening, high-strength connection design, the stability and safety of the beam-column connection are guaranteed, and it can withstand large loads to meet the requirements of building structure.

[0009] According to an embodiment of the present invention, a quick-connection node for prefabricated building beams and columns includes a steel column, an I-beam, and a connecting seat. The connecting seat is fixedly installed on the outer wall of the steel column by four sets of first bolts. Two sets of slidable mounting seats are symmetrically arranged on the inner side of the connecting seat. Each set of mounting seats has a groove. Connecting blocks are slidably installed on the upper and lower sides of the groove. An adjusting seat is arranged in the center of the inner side of the groove. A nut is rotatably installed inside the adjusting seat. Both ends of the nut are provided with screws. A screw hole is opened on the side of the connecting block near the nut. The screw is screwed into the screw hole. The steel beam is inserted and installed in the four sets of connecting blocks.

[0010] Furthermore, the outer walls of the steel column are provided with first mounting holes, and the four corners of the connecting seat are provided with first through holes. A first bolt is inserted into the first through hole and screwed into the first mounting hole after passing through the first through hole.

[0011] Furthermore, each of the connecting blocks in each group has a second mounting hole on its outer side, and the I-beam has a second through hole at both the top and bottom ends. A second bolt is inserted into the second through hole, and the second bolt passes through the second through hole and is screwed into the second mounting hole. The I-beam and the connecting block are fixedly connected by the second bolt.

[0012] Furthermore, support rods are installed through both sides of the connecting seat, and the two ends of the support rods are fixedly connected to the side wall of the mounting seat. An adjusting screw is rotatably installed in the center of the support rod, and an adjusting screw hole is opened in the center of the outer wall on both sides of the connecting seat. The adjusting screw is screwed into the adjusting screw hole.

[0013] Furthermore, an anti-loosening nut is rotatably mounted on the adjusting screw, and the anti-loosening nut can rotate and move on the adjusting screw.

[0014] Furthermore, the sliding fit clearance between the connecting block and the slide groove is no greater than 0.mm, and both the outer wall of the connecting block and the inner wall of the slide groove are polished.

[0015] Furthermore, the screws at both ends of the nut rotate in opposite directions.

[0016] Furthermore, the support rod and the mounting base are fixed by welding.

[0017] Furthermore, the depth of the screw hole is .-. times the screw insertion length, and an unloading groove is provided at the bottom of the screw hole.

[0018] Furthermore, the anti-loosening nut is located on the adjusting screw near the outer wall of the connecting seat, and the anti-loosening nut is tightly fitted to the outer wall of the connecting seat when tightened.

[0019] The beneficial effects of this utility model are:

[0020] 1. In this utility model, the adjustable connecting block and mounting base can adapt to the installation of I-beams of different sizes. Rotating the nut can drive the connecting block to slide in the groove, changing the size of the enclosed space formed by the connecting block. Rotating the adjusting screw can adjust the position of the mounting base, so that the connection node can meet the connection requirements of beams and columns of various specifications, reducing the dependence on special connecting parts in different projects and improving the versatility of the node.

[0021] 2. In this utility model, the connecting seat is firmly fixed to the steel column by four sets of first bolts. After the steel beam is inserted into the enclosed space formed by the four sets of connecting blocks, it is tightly connected to the connecting blocks by second bolts. The multiple fixing structure ensures the stability of the beam-column connection. At the same time, the anti-loosening nut can prevent the adjusting screw from loosening. The welding and fixing of the support rod and the mounting seat enhances the load-bearing capacity of the overall structure. The close cooperation and reasonable design between the components enable the connection node to withstand a large load, meet the stress requirements of the building structure, and ensure the safety of the building.

[0022] 3. In this utility model, the position adjustment of the connecting block is achieved by rotating the nut, and the position adjustment of the mounting base is completed by adjusting the screw. The adjustment process is simple and labor-saving, requiring no professional or complex equipment. In later maintenance or when beam and column components need to be replaced, bolts and other connecting parts can be easily disassembled to adjust or repair the connection nodes, reducing maintenance costs and difficulty. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a quick-connection node for prefabricated building beams and columns proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the steel beam disassembly structure for a quick connection node between beams and columns in a prefabricated building, as proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the disassembly structure of the connecting seat for a quick connection node of prefabricated building beams and columns proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the disassembly structure of the connecting block for a quick connection node of prefabricated building beams and columns proposed in this utility model.

[0028] Figure 5 This is a schematic diagram showing the disassembled structure of the support rod and mounting base of a quick connection node for prefabricated building beams and columns proposed in this utility model.

[0029] In the diagram: 1. Steel column; 2. I-beam; 3. Connecting seat; 4. Second through hole; 5. Second bolt; 6. Connecting block; 7. Second mounting hole; 8. First mounting hole; 9. First through hole; 10. First bolt; 11. Mounting seat; 12. Slide groove; 13. Adjusting seat; 14. Nut; 15. Screw; 16. Screw hole; 17. Support rod; 18. Adjusting screw; 19. Adjusting screw hole; 20. Anti-loosening nut. Detailed Implementation

[0030] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures.

[0031] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] like Figure 1-5As shown, this utility model discloses a quick connection node for prefabricated building beams and columns, including a steel column 1, an I-beam 2, and a connecting seat 3. The connecting seat 3 is fixedly installed on the outer wall of the steel column 1 by four sets of first bolts 10. Two sets of slidable mounting seats 11 are symmetrically arranged on the inner side of the connecting seat 3. Each set of mounting seats 11 has a groove 12. Connecting blocks 6 are slidably installed on the upper and lower sides of the groove 12. An adjusting seat 13 is arranged in the center of the inner side of the groove 12. A nut 14 is rotatably installed inside the adjusting seat 13. A screw 15 is provided at both the upper and lower ends of the nut 14. A screw hole 16 is opened on the side of the connecting block 6 near the nut 14. The screw 15 is screwed into the screw hole 16. The steel beam 2 is inserted and installed in the four sets of connecting blocks 6.

[0035] This application discloses a quick-connection node for prefabricated building beams and columns. During beam-column connection installation, the connecting seat 3 is first fixed to the outer wall of the steel column 1 using four sets of first bolts 10, completing the initial fixation between the connecting seat and the steel column. Next, according to the dimensions of the I-beam 2, the position of the connecting block 6 is adjusted. By rotating the nut 14 inside the adjusting seat 13, the screws 15 at the upper and lower ends of the nut 14 rotate in opposite directions, causing the screws 15 to rotate within the screw holes 16, thereby driving the connecting block 6 to slide up and down within the sliding groove 12, so that the four sets of connecting blocks 6 form an enclosed space matching the steel beam 2. Then, the end of the steel beam 2 is inserted into the enclosed space formed by the four sets of connecting blocks 6, and the steel beam 2 is fixedly connected to the connecting block 6 using second bolts 5 and other connecting components, completing the quick beam-column connection. If the position of the mounting seat 11 needs adjustment, the adjusting screw 18 can be rotated. The adjusting screw 18 rotates within the adjusting screw hole 19, causing the support rod 17 and the mounting seat 11 to slide inside the connecting seat 3, adapting to different installation requirements. Throughout the connection process, the anti-loosening nut 20 is tightly fitted to the outer wall of the connecting seat 3 when tightened, which can prevent the adjusting screw 18 from loosening and ensure the stability of the connection.

[0036] The prefabricated building beam-column quick-connection node described in this application, through the setting of adjustable connecting blocks 6 and mounting bases 11, can adapt to the installation of steel beams 2 of different sizes, improving the versatility and flexibility of the connection node. Simultaneously, the use of bolts and other connectors for fixing ensures a simple and reliable connection method, facilitating rapid installation and disassembly, greatly improving the construction efficiency of prefabricated buildings. Furthermore, the tight fit between components and the rational structural design guarantee the stability and safety of the beam-column connection, meeting the stress requirements of the building structure.

[0037] As a preferred example of this application, the outer walls of the steel column 1 are provided with first mounting holes 8, and the four corners of the connecting seat 3 are provided with first through holes 9. First bolts 10 are inserted into the first through holes 9, and the first bolts 10 pass through the first through holes 9 and are then screwed into the first mounting holes 8. This arrangement, by providing corresponding mounting holes and through holes on the steel column 1 and the connecting seat 3 respectively, ensures that the first bolts 10 can accurately fix the connecting seat 3 to the steel column 1, guaranteeing the firmness and accuracy of the connection between the connecting seat and the steel column.

[0038] As a preferred example of this application, each of the connecting blocks 6 has a second mounting hole 7 on its outer side, and the I-beam 2 has a second through hole 4 at both its upper and lower ends. A second bolt 5 is inserted into the second through hole 4, and the second bolt 5 passes through the second through hole 4 and is screwed into the second mounting hole 7. The I-beam 2 and the connecting block 6 are fixedly connected by the second bolt 5. This arrangement, by using the second bolt 5 to tightly fix the steel beam 2 and the connecting block 6, further enhances the connection strength between the steel beam and the connecting node, and ensures the stability of the beam-column connection.

[0039] As a preferred example of this application, support rods 17 are installed through both sides of the connecting seat 3. The two ends of the support rods 17 are fixedly connected to the side walls of the mounting seat 11. An adjusting screw 18 is rotatably mounted in the center of each support rod 17. Adjusting screw holes 19 are centrally located on the outer walls of both sides of the connecting seat 3, and the adjusting screw 18 is screwed into the adjusting screw holes 19. This arrangement connects the mounting seat 11 and the adjusting screw 18 via the support rods 17. Rotating the adjusting screw 18 causes the mounting seat 11 to slide, making the adjustment simple and convenient, and enabling quick adjustment of the position of the mounting seat 11.

[0040] As a preferred example of this application, an anti-loosening nut 20 is rotatably mounted on the adjusting screw 18. The anti-loosening nut 20 can rotate on the adjusting screw 18 and abut against the side wall of the connecting seat 3. This arrangement, through the anti-loosening effect of the anti-loosening nut 20, can effectively prevent the adjusting screw 18 from loosening due to vibration or other reasons during use, ensuring the stability of the mounting seat 11 position, and thus ensuring the structural safety of the entire connection node.

[0041] As a preferred example of this application, the sliding fit clearance between the connecting block 6 and the slide groove 12 is no greater than 0.5 mm, and both the outer wall of the connecting block 6 and the inner wall of the slide groove 12 are polished. This design reduces the frictional resistance between the connecting block 6 and the slide groove 12, making the sliding of the connecting block 6 smoother, while also ensuring the stability of the connecting block 6 during the sliding process and preventing shaking.

[0042] As a preferred example of this application, the screws 15 at both ends of the nut 14 rotate in opposite directions. This arrangement allows the upper and lower sets of connecting blocks 6 to move simultaneously in opposite directions when the nut 14 is rotated, improving the efficiency and synchronicity of the position adjustment of the connecting blocks 6 and ensuring the symmetry of the enclosed space.

[0043] As a preferred example of this application, the support rod 17 and the mounting base 11 are fixed by welding. Welding ensures the connection strength between the support rod 17 and the mounting base 11, preventing loosening or breakage during stress, and improving the overall load-bearing capacity of the connection node.

[0044] As a preferred example of this application, the depth of the screw hole 16 is 1.2-1.5 times the screw length of the screw 15, and an unloading groove is provided at the bottom of the screw hole 16. The depth of the screw hole 16 ensures that the screw 15 has sufficient screw length, improving the reliability of the connection; the unloading groove reduces stress concentration at the bottom of the screw hole 16, extending the service life of the connecting block 6.

[0045] As a preferred example of this application, the anti-loosening nut 20 is located on the adjusting screw 18 near the outer wall of the connecting seat 3, and the anti-loosening nut 20 is tightly fitted to the outer wall of the connecting seat 3 when tightened. This arrangement allows the anti-loosening nut 20 to better perform its anti-loosening function, tightly pressing against the outer wall of the connecting seat 3 to prevent the adjusting screw 18 from loosening and to ensure the stability of the mounting seat 11.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-connection node for beams and columns in prefabricated buildings, characterized in that, The system includes a steel column (1), an I-beam (2), and a connecting seat (3). The connecting seat (3) is fixedly installed on the outer wall of the steel column (1) by four sets of first bolts (10). Two sets of slidable mounting seats (11) are symmetrically arranged on the inner side of the connecting seat (3). Each set of mounting seats (11) has a groove (12) inside. Connecting blocks (6) are slidably installed on the upper and lower sides inside the groove (12). An adjusting seat (13) is arranged in the center inside the groove (12). A nut (14) is rotatably installed inside the adjusting seat (13). A screw (15) is provided at both the upper and lower ends of the nut (14). A screw hole (16) is opened on the side of the connecting block (6) near the nut (14). The screw (15) is screwed into the screw hole (16). The steel beam (2) is inserted and installed in the four sets of connecting blocks (6).

2. The prefabricated building beam-column quick connection node according to claim 1, characterized in that, The steel column (1) has a first mounting hole (8) on all four sides of its outer wall. The connecting seat (3) has a first through hole (9) at each of its four corners. A first bolt (10) is inserted into the first through hole (9). The first bolt (10) passes through the first through hole (9) and is screwed into the first mounting hole (8).

3. The prefabricated building beam-column quick connection node according to claim 1, characterized in that, Each of the connecting blocks (6) has a second mounting hole (7) on its outer side. The I-beam (2) has a second through hole (4) at both the top and bottom. A second bolt (5) is inserted into the second through hole (4). The second bolt (5) passes through the second through hole (4) and is screwed into the second mounting hole (7). The I-beam (2) and the connecting block (6) are fixedly connected by the second bolt (5).

4. The prefabricated building beam-column quick connection node according to claim 1, characterized in that, Both sides of the connecting seat (3) are fitted with support rods (17). The two ends of the support rods (17) are fixedly connected to the side wall of the mounting seat (11). An adjusting screw (18) is rotatably installed in the center of the support rods (17). An adjusting screw hole (19) is opened in the center of the outer wall of both sides of the connecting seat (3). The adjusting screw (18) is screwed into the adjusting screw hole (19).

5. A quick-connection node for prefabricated building beams and columns according to claim 4, characterized in that, An anti-loosening nut (20) is rotatably mounted on the adjusting screw (18), and the anti-loosening nut (20) can rotate and move on the adjusting screw (18).

6. A quick-connection node for prefabricated building beams and columns according to claim 1, characterized in that, The sliding fit gap between the connecting block (6) and the slide groove (12) is no more than 0.5 mm, and the outer wall of the connecting block (6) and the inner wall of the slide groove (12) are both polished.

7. A quick-connection node for prefabricated building beams and columns according to claim 1, characterized in that, The screws (15) at both ends of the nut (14) rotate in opposite directions.

8. A quick-connection node for prefabricated building beams and columns according to claim 4, characterized in that, The support rod (17) and the mounting base (11) are fixed by welding.

9. A quick-connection node for prefabricated building beams and columns according to claim 1, characterized in that, The depth of the screw hole (16) is 1.2-1.5 times the screw length of the screw (15), and the bottom of the screw hole (16) is provided with a load relief groove.

10. A quick-connection node for prefabricated building beams and columns according to claim 5, characterized in that, The anti-loosening nut (20) is located on the adjusting screw (18) near the outer wall of the connecting seat (3), and the anti-loosening nut (20) is tightly fitted to the outer wall of the connecting seat (3) when tightened.

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