Prefabricated beam-slab-column joint structure

Abstract

The utility model discloses an assembly type beam slab column node structure belongs to assembly type building structure technical field, including the load -bearing block, the outside of load -bearing block is provided with four docking frames, and the inner wall of every docking frame all is with the inner wall of load -bearing block jointly screw -thread connection has two pre -assembled bolt, and the inside of every docking frame all slidingly connects with three positioning pins, and the inside of every docking frame all is provided with three back -up springs. The assembly type beam slab column node structure, through the mutual cooperation of load -bearing block, docking frame, pre -assembled bolt, back -up spring, positioning pin, wedge -shaped clamping block, first pre -assembled board and locating groove, pre -assembled bolt can give the four faces of load -bearing block horizontal direction assembly the docking frame that horizontal structure docking needs, and first pre -assembled board can cooperate other assembly structure and fix the docking of the beam slab column structure that needs and load -bearing block to carry out, and then when the beam slab column structure and load -bearing block splice, wedge -shaped clamping block inserts into the inside of docking frame from the top of docking frame.

Description

Technical Field

[0001] This application belongs to the field of prefabricated building structure technology, and particularly relates to prefabricated beam-slab-column joint structures. Background Technology

[0002] Prefabricated building structures refer to building structures assembled and connected on the construction site from prefabricated components (such as beams, slabs, columns, etc.) in a factory. When prefabricated beams, slabs, and columns are used as the main load-bearing components, and these prefabricated components need to be reliably connected through specific nodes to form an overall load-bearing system, prefabricated beam-slab-column joint structures are used.

[0003] The existing utility model with authorization announcement number CN220266846U discloses a prefabricated beam-slab-column joint structure. By prefabricating hollow bottom columns, hollow column caps, floor slabs and structural beams, and assembling them by hoisting, concrete is poured. This effectively solves the defects existing in the prior art. By reducing the weight of the column components, it is easier to install and position, reduces the assembly difficulty, simplifies the process, and strengthens the overall integrity of the joint, thereby effectively improving the seismic resistance of the structure to achieve the ideal effect, and further reasonably reducing the construction cost.

[0004] Although the above technical solution improves installation convenience by pouring concrete after assembly and also has a certain seismic resistance, the bolt structure in the assembled structure still requires external tools and lacks an automatic locking structure for convenient assembly, resulting in low assembly efficiency when connecting beams, slabs and columns in the relevant horizontal direction.

[0005] Therefore, we propose a prefabricated beam-slab-column joint structure to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to solve the problem that in the prior art, the bolt structure in the assembled structure still requires the operation of external tools and lacks an automatic locking structure for convenient assembly, resulting in low assembly efficiency when connecting beam, slab and column structures in the relevant horizontal direction. The proposed model is a prefabricated beam, slab and column joint structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] The prefabricated beam-slab-column joint structure includes a load-bearing block. Four connecting brackets are provided on the outer side of the load-bearing block. The inner wall of each connecting bracket is threadedly connected to the inner wall of the load-bearing block with two pre-installed bolts. Three positioning pins are slidably connected inside each connecting bracket. Three return springs are provided inside each connecting bracket. A wedge-shaped locking block is engaged inside each connecting bracket. A first pre-installed plate is fixedly connected to the side of each wedge-shaped locking block away from the connecting bracket. Three positioning grooves are opened on the side of each wedge-shaped locking block near the connecting bracket.

[0009] Preferably, the side of each docking frame near the load-bearing block is in contact with the outer surface of the load-bearing block, the two ends of each return spring are fixedly connected to the inner wall of the docking frame and the end of the positioning pin away from the wedge-shaped block, the side of each first pre-installed plate near the docking frame is in contact with the outer surface of the docking frame, the outer surface of each positioning pin is in contact with the inner wall of the positioning groove, and a second pre-installed plate is provided above and below the load-bearing block, and a docking block is fixedly connected to the side of the two second pre-installed plates that are close to each other.

[0010] Preferably, a docking box is fixedly connected to both the upper surface and the bottom surface of the load-bearing block, and the inner wall of each docking box is in contact with the outer surface of the docking block.

[0011] Preferably, each of the docking boxes has two assembly screws slidably connected inside, and the outer surface of each assembly screw is in contact with the inner wall of the docking block.

[0012] Preferably, each of the assembly screws has an assembly nut threaded onto its outer surface, and the end of each assembly nut near the docking box is in contact with the outer surface of the docking box.

[0013] Preferably, each of the assembly screws is fitted with a washer on its outer surface, and the side of each washer near the docking box is in contact with the outer surface of the docking box.

[0014] Preferably, four first assembly plates are fixedly connected to the outer surface of each first pre-assembly plate, and each first assembly plate has a plurality of identical first assembly holes on its outer surface.

[0015] Preferably, four second assembly plates are fixedly connected to the outer surface of each second pre-assembly plate, and each second assembly plate has a plurality of identical second assembly holes on its outer surface.

[0016] In summary, the technical effects and advantages of this application are as follows:

[0017] Through the cooperation of the load-bearing block, docking frame, pre-installed bolts, return spring, positioning pin, wedge-shaped locking block, first pre-installed plate, and positioning groove, the pre-installed bolts can assemble the docking frame required for horizontal structural docking on the four horizontal surfaces of the load-bearing block. The first pre-installed plate can cooperate with other assembly structures to pre-fix the beam, slab, and column structures that need to dock with the load-bearing block. Then, when the beam, slab, and column structures are spliced ​​with the load-bearing block, the wedge-shaped locking block is inserted into the docking frame from above. During this process, each positioning pin is gradually and completely embedded into the interior of the docking frame under the pressure of the wedge-shaped locking block until each positioning pin is parallel to the corresponding positioning groove on the wedge-shaped locking block. The return spring can push each positioning pin into the corresponding positioning groove, thereby realizing the rapid and automatic locking docking of the beam, slab, and column structures assembled on the first pre-installed plate with the load-bearing block. This greatly improves the docking efficiency of the beam, slab, and column structures in the horizontal direction of the load-bearing block and avoids the problem of low assembly efficiency when docking beam, slab, and column structures in the relevant horizontal direction due to the lack of a convenient automatic locking structure. Attached Figure Description

[0018] Figure 1 This is a three-dimensional overall structural diagram of the prefabricated beam-slab-column joint structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the load-bearing block of this utility model;

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of the docking frame of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the wedge-shaped card block of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the docking box of this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the docking block of this utility model.

[0024] In the diagram: 1. Load-bearing block; 2. Connecting frame; 3. Pre-installation bolt; 4. Return spring; 5. Positioning pin; 6. Wedge-shaped locking block; 7. First pre-installation plate; 8. Positioning groove; 9. Second pre-installation plate; 10. Connecting block; 11. Connecting box; 12. Assembly screw; 13. Assembly nut; 14. Washer; 15. Second assembly plate; 16. Second assembly hole; 17. First assembly plate; 18. First assembly hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-6 The prefabricated beam-slab-column joint structure includes a load-bearing block 1. Four connecting frames 2 are provided on the outer side of the load-bearing block 1. The side of each connecting frame 2 closest to the load-bearing block 1 is in contact with the outer surface of the load-bearing block 1. A second pre-installed plate 9 is provided above and below the load-bearing block 1. Connecting blocks 10 are fixedly connected to the side of the two second pre-installed plates 9 that are close to each other. By setting the second pre-installed plates 9, it is possible to cooperate with other prefabricated structures to pre-connect with the beam-slab-column structure in the vertical direction of the load-bearing block 1. The connecting blocks 10 can cooperate with other structures to enable the aforementioned beam-slab-column structure to be quickly positioned and connected with the load-bearing block 1.

[0027] Each docking frame 2 has two pre-installed bolts 3 that are threadedly connected to the inner wall of the load-bearing block 1. The upper surface and the bottom surface of the load-bearing block 1 are fixedly connected with docking boxes 11. The inner wall of each docking box 11 is in contact with the outer surface of the docking block 10. By setting docking boxes 11, they can be quickly and accurately docked with the docking block 10, so that the beam, slab and column structure in the vertical direction of the load-bearing block 1 can be quickly positioned and docked with the load-bearing block 1.

[0028] Each docking frame 2 has three locating pins 5 slidably connected inside, and each docking box 11 has two assembly screws 12 slidably connected inside. The outer surface of each assembly screw 12 is in contact with the inner wall of the docking block 10. By setting the assembly screws 12, the docking block 10 and the docking box 11 can be passed through respectively, thereby temporarily locking the relative position of the two.

[0029] Each docking frame 2 is equipped with three return springs 4 inside, and each assembly screw 12 is threaded with an assembly nut 13 on its outer surface. The end of each assembly nut 13 near the docking box 11 is in contact with the outer surface of the docking box 11. By setting the assembly nut 13, the docking block 10 and the docking box 11 can be locked together with the assembly screw 12, thereby increasing the relative stability between the two.

[0030] Each docking frame 2 has a wedge-shaped locking block 6 inside. The two ends of each return spring 4 are fixedly connected to the inner wall of the docking frame 2 and the end of the positioning pin 5 away from the wedge-shaped locking block 6, respectively. Each assembly screw 12 has a washer 14 on its outer surface. The side of each washer 14 near the docking box 11 is in contact with the outer surface of the docking box 11. By setting the washer 14, it can be placed between the docking box 11 and the assembly screw 12 and increase the contact area between the two, thereby improving the fastening effect of the assembly screw 12.

[0031] Each wedge-shaped locking block 6 has a first pre-installed plate 7 fixedly connected to the side away from the docking frame 2. Each first pre-installed plate 7 has a side close to the docking frame 2 in contact with the outer surface of the docking frame 2. Each first pre-installed plate 7 has four first assembly plates 17 fixedly connected to its outer surface. Each first assembly plate 17 has several identical first assembly holes 18 on its outer surface. By setting the first assembly holes 18, the first assembly plate 17 can be pre-assembled with the beam-plate-column structure in the horizontal direction that will be docked with the load-bearing block 1 in conjunction with external bolts and other positioning rod structures. This allows the beam-plate-column structure to be pre-fixed and docked with the first pre-installed plate 7 and the wedge-shaped locking block 6.

[0032] Each wedge-shaped block 6 has three positioning slots 8 on one side near the docking frame 2. The outer surface of each positioning pin 5 is in contact with the inner wall of the positioning slot 8. Each second pre-assembly plate 9 has four second assembly plates 15 fixedly connected to its outer surface. Each second assembly plate 15 has several identical second assembly holes 16 on its outer surface. By setting the second assembly holes 16, the second assembly plate 15 can be pre-assembled with the beam-plate-column structure in the vertical direction that will be docked with the load-bearing block 1, in conjunction with external bolts and other positioning rod structures. This allows the beam-plate-column structure to be pre-fixed and docked with the second pre-assembly plate 9 and the docking block 10.

[0033] The working principle of this utility model is as follows: When using it, during horizontal assembly, the docking frame 2 is first fixed to the four outer sides of the load-bearing block 1 by the pre-installed bolts 3, so that the docking frame 2 is in close contact with the outer surface of the load-bearing block 1. The first pre-installed plate 7 is fixed to the horizontal beam-plate-column structure to be docked in advance through the first assembly plate 17 and the first assembly hole 18. The wedge-shaped locking block 6 is fixedly connected to the first pre-installed plate 7 and moves together with the beam-plate-column.

[0034] When the horizontal beam-slab-column approaches the load-bearing block 1, the wedge-shaped locking block 6 is inserted into the docking frame 2 from above. During the insertion process, the inclined surface of the wedge-shaped locking block 6 presses against the positioning pin 5 inside the docking frame 2, causing the positioning pin 5 to slide into the docking frame 2. The return spring 4 is compressed until the wedge-shaped locking block 6 is fully inserted into the docking frame 2. The positioning pin 5 is aligned with the positioning groove 8 on the wedge-shaped locking block 6. The return spring 4 releases its elastic force, pushing the positioning pin 5 into the positioning groove 8, thereby achieving automatic locking and docking between the horizontal beam-slab-column and the load-bearing block 1.

[0035] During vertical assembly, the second pre-installed plate 9 is pre-fixed to the vertical beam-plate-column structure to be connected via the second assembly plate 15 and the second assembly hole 16. The connecting block 10 is fixed to the second pre-installed plate 9. The connecting block 10 is inserted into the connecting box 11 on the upper and lower surfaces of the load-bearing block 1, so that the connecting block 10 fits against the inner wall of the connecting box 11. Then, the assembly screw 12 is passed through the connecting box 11 and the connecting block 10. After the washer 14 is put on, the assembly nut 13 is tightened. The vertical beam-plate-column is fixed to the load-bearing block 1 through the tight contact between the assembly nut 13 and the outer surface of the connecting box 11.

[0036] Throughout the process, the horizontal direction relies on the return spring 4 and the positioning pin 5 to achieve automatic locking, reducing the dependence on external tools. The vertical direction is strengthened by the assembly screw 12 and the assembly nut 13 to enhance the connection stability, which greatly improves the docking efficiency of beams, slabs and columns with the node structure. The design of the entire prefabricated beam, slab and column node structure effectively solves the problem of low assembly efficiency when docking beams, slabs and columns in the relevant horizontal direction due to the lack of an automatic locking structure for convenient assembly.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] 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 prefabricated beam-slab-column joint structure, including a load-bearing block (1), characterized in that: Four docking frames (2) are provided on the outer side of the load-bearing block (1). The inner wall of each docking frame (2) is threadedly connected to the inner wall of the load-bearing block (1) with two pre-installed bolts (3). Three positioning pins (5) are slidably connected inside each docking frame (2). Three return springs (4) are provided inside each docking frame (2). A wedge-shaped locking block (6) is snapped inside each docking frame (2). A first pre-installed plate (7) is fixedly connected to the side of each wedge-shaped locking block (6) away from the docking frame (2). Three positioning grooves (8) are opened on the side of each wedge-shaped locking block (6) close to the docking frame (2).

2. The prefabricated beam-slab-column joint structure according to claim 1, characterized in that: Each of the docking frames (2) has one side close to the load-bearing block (1) in contact with the outer surface of the load-bearing block (1). The two ends of each of the return springs (4) are fixedly connected to the inner wall of the docking frame (2) and the end of the positioning pin (5) away from the wedge-shaped block (6), respectively. Each of the first pre-installed plates (7) has one side close to the docking frame (2) in contact with the outer surface of the docking frame (2). The outer surface of each of the positioning pins (5) is in contact with the inner wall of the positioning groove (8). A second pre-installed plate (9) is provided above and below the load-bearing block (1). A docking block (10) is fixedly connected to one side of each of the two second pre-installed plates (9) that are close to each other.

3. The prefabricated beam-slab-column joint structure according to claim 2, characterized in that: The upper surface and the bottom surface of the load-bearing block (1) are both fixedly connected to docking boxes (11), and the inner wall of each docking box (11) is in contact with the outer surface of the docking block (10).

4. The prefabricated beam-slab-column joint structure according to claim 3, characterized in that: Each of the docking boxes (11) has two slidably connected assembly screws (12) inside, and the outer surface of each assembly screw (12) is in contact with the inner wall of the docking block (10).

5. The prefabricated beam-slab-column joint structure according to claim 4, characterized in that: Each of the assembly screws (12) has an assembly nut (13) threaded onto its outer surface, and the end of each assembly nut (13) near the docking box (11) is in contact with the outer surface of the docking box (11).

6. The prefabricated beam-slab-column joint structure according to claim 4, characterized in that: Each of the assembly screws (12) has a washer (14) fitted on its outer surface, and the side of each washer (14) near the docking box (11) is in contact with the outer surface of the docking box (11).

7. The prefabricated beam-slab-column joint structure according to claim 1, characterized in that: Each of the first pre-installed plates (7) has four first assembly plates (17) fixedly connected to its outer surface, and each of the first assembly plates (17) has several identical first assembly holes (18) on its outer surface.

8. The prefabricated beam-slab-column joint structure according to claim 2, characterized in that: Each of the second pre-mounted plates (9) has four second assembly plates (15) fixedly connected to its outer surface, and each of the second assembly plates (15) has several identical second assembly holes (16) on its outer surface.

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