Modularized assembly type building connection node structure

Abstract

The utility model relates to the technical field of modular buildings, and discloses a modular assembly type building connection node structure which comprises a connection pile, a butt joint mechanism is fixedly connected to the interior of the connection pile, and the upper end and the lower end of the connection pile are fixedly connected with two supporting sleeve shells respectively. Four extension plates are fixedly connected to the periphery of the supporting sleeve shell, and supporting mechanisms are detachably connected to the outer walls of the extension plates; the butt joint mechanism comprises a plurality of transverse grouting sleeves, the transverse grouting sleeves are fixedly connected to the interior of the connecting pile, longitudinal reinforcing ribs are fixedly connected to the interior of the connecting pile, and the upper end and the lower end of the connecting pile are each provided with two longitudinal cavities. According to the utility model, the quick assembly of the fabricated building in the construction process is realized, the modularization degree and the construction efficiency of the fabricated building are effectively improved, the investment of resources such as manpower and material resources is reduced, the construction cost is effectively reduced, and the economic benefit of a project is improved.

Description

Technical Field

[0001] This utility model relates to the field of modular building technology, and in particular to a modular prefabricated building connection node structure. Background Technology

[0002] Prefabricated construction refers to the transfer of a large amount of on-site work from traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, and stairs) are prefabricated in factories, then transported to the construction site and assembled using reliable connection methods. The connection node structure in prefabricated buildings is a crucial part used to connect these components, forming a stable whole. It is an essential link in ensuring the structural safety and overall performance of prefabricated buildings, and is closely connected to and indispensable to the construction process. Common types of prefabricated building connection node structures include grouted sleeve connection nodes, welded connection nodes, and bolted connection nodes.

[0003] The grouting sleeve connection structure mainly consists of a grouting sleeve, connecting reinforcing bars, and grout. Its working principle is as follows: In prefabricated building construction, connecting reinforcing bars are inserted into both ends of the grouting sleeve. One end of the reinforcing bar is initially fixed to the sleeve using a threaded connection or other method, while the other end is connected by insertion. Then, the grout is injected into the sleeve through a dedicated grouting port. The grout flows within the sleeve and fills the gap between the reinforcing bar and the sleeve. As the grout hardens, it tightly wraps around the reinforcing bar, firmly connecting the two bars together through adhesion and friction. This achieves a reliable connection between prefabricated building components, ensuring effective force transmission between components and maintaining the overall stability of the prefabricated building structure.

[0004] In existing technologies, the specifications of the grouting sleeves and matching grouting materials in the grouting sleeve connection node structure need to be precisely matched with the diameter of the reinforcing bars. The connection of components of different specifications often requires the storage of multiple models of sleeves and grouting materials, which affects the rapid assembly of modules. This makes it difficult for some building connection node structures to perform multi-directional modular assembly of prefabricated buildings, thereby limiting the flexibility of building design and making it difficult to fully utilize the advantages of efficient and flexible splicing of prefabricated buildings. This restricts the building shape and spatial layout, making it difficult to meet diverse building functional requirements. Therefore, a modular prefabricated building connection node structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a modular prefabricated building connection node structure, which aims to improve the problem that some building connection node structures in the prior art are difficult to use for multi-directional modular assembly of prefabricated buildings.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A modular prefabricated building connection node structure includes a connecting pile, a docking mechanism fixedly connected inside the connecting pile, two support shells fixedly connected to the upper and lower ends of the connecting pile, four extension plates fixedly connected to the four sides of the support shells, and a support mechanism detachably connected to the outer wall of the extension plates.

[0008] The docking mechanism includes multiple transverse grouting sleeves, which are fixedly connected inside the connecting pile. The connecting pile is fixedly connected with longitudinal reinforcing ribs. Two longitudinal chambers are opened at the upper and lower ends of the connecting pile, and multiple transverse chambers are opened around the connecting pile.

[0009] As a further description of the above technical solution:

[0010] The support mechanism includes multiple mounting plates, wherein the outer walls of the multiple mounting plates are detachably connected to the outer walls of the multiple extension plates, and the outer walls of the other multiple mounting plates are detachably connected to the outer wall of the support housing. Connecting rods are fixedly connected to adjacent sides of two mounting plates, and two transmission rods are fixedly connected to adjacent sides of two extension plates.

[0011] As a further description of the above technical solution:

[0012] The support shell has a longitudinal grouting cavity inside, and the two ends of the multiple longitudinal reinforcing ribs are respectively used to connect with two prefabricated building modules.

[0013] As a further description of the above technical solution:

[0014] The plurality of transverse grouting sleeves are semi-grouting sleeves, and the two ends of the plurality of transverse grouting sleeves are respectively used to dock with two prefabricated building modules;

[0015] As a further description of the above technical solution:

[0016] The mounting plates and the two support sleeves are each provided with multiple mounting slots inside. The mounting plates and support sleeves are connected by driving screws into the mounting slots.

[0017] As a further description of the above technical solution:

[0018] The extension plate has a rebar insertion hole in the middle, which is used to reinforce the horizontal prefabricated building module.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the six external cavities of the connecting pile provide installation space, and the transverse building modules are connected and installed by the transverse grouting sleeves, and the longitudinal reinforcing ribs are assembled to form a standardized modular unit that can flexibly adapt to diverse module specifications and meet all-round construction needs. This enables the prefabricated building to be quickly assembled during the construction process, effectively improving the modularity and construction efficiency of the prefabricated building, shortening the construction cycle, reducing the input of manpower, material resources, etc., effectively reducing construction costs, and improving the economic benefits of the project.

[0021] 2. In this utility model, by vertically connecting the longitudinal reinforcing bars, simultaneously grouting the longitudinal grouting cavity and the transverse grouting sleeve, and reinforcing the insertion holes of the extension plate reinforcing bars, the connection and load-bearing capacity are enhanced from different directions, prestressing is applied to the overall structure, and additional support is provided to the transverse building modules through the action of the mounting plate and connecting rod. The stress brought about by the installation of the transverse building modules is dispersed through the transmission rod, thereby achieving the effect of improving the prestress of the overall structure, and thus achieving the purpose of improving the stability and seismic resistance of the building under various loads. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a modular prefabricated building connection node structure proposed in this utility model.

[0023] Figure 2 This is a structural schematic diagram of the longitudinal stiffener of a modular prefabricated building connection node structure proposed in this utility model.

[0024] Figure 3 This is a structural schematic diagram of the transverse cavity of a modular prefabricated building connection node structure proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the longitudinal chamber of a modular prefabricated building connection node structure proposed in this utility model.

[0026] Legend:

[0027] 1. Connecting pile; 2. Longitudinal chamber; 3. Transverse chamber; 4. Transverse grouting sleeve; 5. Longitudinal reinforcing bar; 6. Support sleeve; 7. Mounting plate; 8. Connecting rod; 9. Mounting groove; 10. Longitudinal grouting cavity; 11. Transmission rod; 12. Rebar insertion hole; 13. Extension plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figure 1 , Figure 2 , Figure 4 This utility model provides an embodiment of a modular prefabricated building connection node structure, including a connecting pile 1. The connecting pile 1 is used to connect prefabricated building modules in all directions, so that the building modules in different directions can be assembled according to actual needs, and the load generated during the assembly process can be transferred and mitigated. A docking mechanism is fixedly connected inside the connecting pile 1, and two support shells 6 are fixedly connected to the upper and lower ends of the connecting pile 1, respectively. The support shells 6 are used to provide stable lateral support for the prefabricated building modules. A longitudinal grouting cavity 10 is opened inside the support shell 6. During construction, high-strength grouting material can be injected into the longitudinal grouting cavity 10 to make the grouting material tightly bonded to the prefabricated building modules and the support shells 6, thereby enhancing the integrity and stability of the longitudinal connection. Four extension plates 13 are fixedly connected to the four sides of the support shell 6. The outer wall of the extension plates 13 is detachably connected to a support mechanism. The extension plates 13 are used to increase the contact area between the support structure and the prefabricated building modules, so that the support force can be more evenly distributed on the modules. The detachable connection of the support mechanism facilitates the installation, adjustment and maintenance of the support mechanism during construction.

[0030] The docking mechanism includes multiple transverse grouting sleeves 4, which are fixedly connected inside the connecting pile 1. These sleeves transmit horizontal shear and tensile forces, ensuring the structural integrity of the prefabricated building under horizontal loads. The transverse grouting sleeves 4 are semi-grouting sleeves, with each end used to dock with one of the two prefabricated building modules. Through the filling and hardening of the grout within the sleeves 4, and the combined effect of the threaded connection, effective connection between the reinforcing bars is achieved, ensuring that the strength of the connection reaches or exceeds the strength of the parent material. This enhances the structural strength and seismic resistance after the transverse building modules are installed.

[0031] The connecting pile 1 is internally fixed with longitudinal reinforcing ribs 5. The two ends of each longitudinal reinforcing rib 5 are used to connect with two prefabricated building modules. The longitudinal reinforcing ribs 5 effectively improve the vertical load-bearing capacity of the connecting pile 1 and reduce the risk of deformation due to vertical pressure. Two longitudinal chambers 2 are respectively opened at the top and bottom of the connecting pile 1, providing installation space for the longitudinal building modules. Multiple transverse chambers 3 are opened around the connecting pile 1, providing installation space for the transverse building modules and reducing the weight of the connecting pile 1 itself.

[0032] Reference Figures 1 to 4 The support mechanism includes multiple mounting plates 7, whose outer walls are detachably connected to the outer walls of multiple extension plates 13. During the construction of prefabricated buildings, the mounting plates 7 can be quickly installed, adjusted, or disassembled according to different project requirements, building module specifications, and actual site conditions. This allows the support mechanism to adapt to diverse building structural systems, effectively improving construction efficiency and reducing construction difficulty. Multiple mounting slots 9 are provided inside both the mounting plates 7 and the two support housings 6. Screws are driven into the mounting slots 9 to connect the mounting plates 7 to the support housings 6. The mounting slots 9 provide precise positioning for the screws, ensuring the connection's firmness and stability. A rebar insertion hole 12 is provided in the middle of the extension plate 13. The rebar insertion hole 12 is used to reinforce the horizontal prefabricated building modules. By inserting the horizontal rebar into the rebar insertion hole 12 and then pouring concrete or other reinforcing materials, the rebar is tightly integrated with the extension plate 13 and the horizontal prefabricated building modules, improving the overall resistance of the prefabricated building to horizontal loads.

[0033] In addition, the outer walls of multiple mounting plates 7 are detachably connected to the outer wall of the support housing 6, thereby further enhancing the overall connection between the support mechanism and the support housing 6. Connecting rods 8 are fixedly connected to adjacent sides of two mounting plates 7, forming a stable triangular structure with the mounting plates 7 connected to their ends. This ensures the installation stability of the entire lateral building module through the tensile force provided by the top connecting rod 8 and the upward thrust provided by the bottom connecting rod 8. Two transmission rods 11 are fixedly connected to adjacent sides of two extension plates 13. The transmission rods 11 can transfer force from one extension plate 13 to the other, enabling the entire support mechanism to more evenly bear and resist lateral forces, ensuring a balanced distribution of support force in all directions.

[0034] Working Principle: Using the connecting pile 1 as the core connecting component, its upper and lower supporting sleeves 6 can be docked and assembled with prefabricated building modules in different directions, meeting comprehensive construction needs. The extension plates 13 around the supporting sleeves 6 and the detachably connected supporting mechanisms can be flexibly adjusted according to the actual project requirements to adapt to diverse module specifications. The transverse grouting sleeve 4 and the longitudinal reinforcing ribs 5 are responsible for the connection and force transmission of the transverse and longitudinal modules, respectively. The longitudinal chamber 2 and transverse chamber 3 of the connecting pile 1 provide space for the installation of modules in the corresponding directions. All components cooperate to form standardized, combinable modular units, allowing for rapid assembly during construction, greatly improving the modularity and construction efficiency of prefabricated buildings.

[0035] During construction, components such as connecting pile 1 and support sleeve 6 are first installed. The longitudinal reinforcing rib 5 is vertically connected to the prefabricated building module to improve vertical load-bearing capacity and reduce deformation. The longitudinal grouting cavity 10 of the support sleeve 6 is filled with grout to enhance longitudinal integrity. The transverse grouting sleeve 4 is connected to the transverse module connecting steel bars through a semi-grouting method. The connection strength is ensured by filling and hardening with grout and threaded connection. Then, the transverse module connection is strengthened by inserting steel bars into the steel bar insertion hole 12 of the extension plate 13 and filling with reinforcing material. The connection of the mounting plate 7 with the support sleeve 6 and the extension plate 13, as well as the setting of the connecting rod 8 and the transmission rod 11, enable the entire support mechanism to evenly transmit and distribute force when subjected to lateral force. The coordinated action of each structure effectively enhances the prestress of the overall structure and improves the stability and seismic resistance of the building under various loads.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular prefabricated building connection node structure, comprising connecting piles (1), characterized in that: The connecting pile (1) is fixedly connected to a docking mechanism inside. The upper and lower ends of the connecting pile (1) are respectively fixedly connected to two support shells (6). The support shells (6) are respectively fixedly connected to four extension plates (13) around their perimeter. The outer wall of the extension plates (13) is detachably connected to a support mechanism. The docking mechanism includes multiple transverse grouting sleeves (4), which are fixedly connected inside the connecting pile (1). The connecting pile (1) is fixedly connected with longitudinal reinforcing ribs (5). Two longitudinal chambers (2) are opened at the upper and lower ends of the connecting pile (1), and multiple transverse chambers (3) are opened around the connecting pile (1).

2. The modular prefabricated building connection node structure according to claim 1, characterized in that: The support mechanism includes multiple mounting plates (7), wherein the outer walls of the multiple mounting plates (7) are detachably connected to the outer walls of the multiple extension plates (13), and the outer walls of the multiple mounting plates (7) are detachably connected to the outer wall of the support housing (6). A connecting rod (8) is fixedly connected to one side of two mounting plates (7), and two transmission rods (11) are fixedly connected to one side of two extension plates (13).

3. The modular prefabricated building connection node structure according to claim 1, characterized in that: The support shell (6) has a longitudinal grouting cavity (10) inside, and the two ends of the multiple longitudinal reinforcing ribs (5) are respectively used to connect with two prefabricated building modules.

4. The modular prefabricated building connection node structure according to claim 1, characterized in that: The plurality of transverse grouting sleeves (4) are semi-grouting sleeves, and the two ends of the plurality of transverse grouting sleeves (4) are respectively used to dock with two prefabricated building modules.

5. A modular prefabricated building connection node structure according to claim 2, characterized in that: Multiple mounting plates (7) and two support sleeves (6) are provided with multiple mounting slots (9) inside. The mounting plates (7) and support sleeves (6) are connected by driving screws into the mounting slots (9).

6. A modular prefabricated building connection node structure according to claim 2, characterized in that: The extension plate (13) has a steel bar insertion hole (12) in the middle, which is used to reinforce the horizontal prefabricated building module.

Images