Quick connection structure of prefabricated concrete components of modular buildings

Abstract

The application discloses a kind of prefabricated concrete member quick connecting structure of modular building, belong to construction engineering technical field, including upper prefabricated concrete member, the bottom of upper prefabricated concrete member is embedded with connecting plate, the bottom of connecting plate is fixedly connected with mounting rod, and the end of mounting rod is fixedly provided with conical head;Upper pouring formwork, fixedly set in the bottom of connecting plate, with connecting plate together enclose and form upper pouring cavity;Lower prefabricated concrete member, it is below upper prefabricated concrete member, the top of lower prefabricated concrete member is provided with conical recess, and conical recess is embedded with conical recess sleeve compatible with conical head, by the orientation cooperation of conical head and conical recess sleeve, the quick alignment and assembly of upper prefabricated concrete member and lower prefabricated concrete member are realized, after assembly is completed, the post-cast area between components is poured with concrete, so that upper prefabricated concrete member and lower prefabricated concrete member form a whole, realize reliable connection.

Description

Technical Field

[0001] This invention relates to a rapid connection structure for precast concrete components in modular buildings, belonging to the field of building engineering technology. Background Technology

[0002] Modular construction is a building technology that uses prefabricated components as its core, and completes construction through factory production and on-site assembly. It can significantly shorten the construction period, reduce on-site labor intensity, and improve building quality and standardization. Among them, prefabricated concrete components are the most widely used in modular construction due to their high load-bearing capacity, good durability, and controllable cost. Their on-site assembly efficiency directly determines the overall construction speed and construction benefits.

[0003] When assembling precast concrete components on site, the component docking process relies on manual assistance for alignment, which results in low positioning accuracy, cumbersome operation, and difficulty in achieving rapid docking. At the same time, traditional connection methods have problems such as complex assembly procedures and numerous temporary supports, which cannot meet the construction requirements of efficient and rapid assembly of modular buildings and restrict the improvement of the overall industrialization level of buildings. Summary of the Invention

[0004] The purpose of this invention is to provide a quick connection structure for precast concrete components in modular buildings to solve the above problems. Through the guiding cooperation of the conical protrusion and the conical groove sleeve, the upper and lower precast concrete components can be quickly aligned and assembled.

[0005] This invention achieves the above objective through the following technical solution: a rapid connection structure for precast concrete components in modular buildings, comprising:

[0006] The upper precast concrete component has a connecting plate embedded in its bottom. The bottom of the connecting plate is fixedly connected to an installation rod, and the end of the installation rod is fixedly provided with a tapered protrusion.

[0007] The upper casting template is fixedly set at the bottom of the connecting plate, and together with the connecting plate, they enclose the upper casting cavity;

[0008] The lower precast concrete component is set below the upper precast concrete component. The top of the lower precast concrete component has a conical groove, and a conical groove sleeve that matches the conical protrusion is pre-embedded in the conical groove.

[0009] The lower pouring formwork is fixedly set on the top of the lower precast concrete component, and together with the lower precast concrete component, it encloses the lower pouring cavity. The upper pouring cavity is connected to the lower pouring cavity to form an integral post-pouring cavity.

[0010] Positioning components are installed on the upper and lower pouring formwork.

[0011] Preferably, a top embedded part is fixedly installed on the top of the connecting plate, and the top embedded part is embedded inside the upper precast concrete component.

[0012] Preferably, the bottom of the connecting plate is fixedly provided with top connecting steel bars in a matrix pattern, and the top connecting steel bars extend into the upper casting cavity.

[0013] Preferably, the side wall of the upper casting template is provided with a casting port, which is connected to the upper casting cavity.

[0014] Preferably, a bottom embedded part is fixedly installed at the bottom of the lower casting formwork, and the bottom embedded part is embedded inside the lower precast concrete component.

[0015] Preferably, bottom connecting steel bars are embedded in the lower precast concrete component in a matrix pattern, and the bottom connecting steel bars extend into the lower casting cavity.

[0016] Preferably, the positioning component includes a mounting plate located on one side of the upper and lower casting templates, with an extended positioning screw fixedly connected to one side of the mounting plate, and through holes for the extended positioning screw to pass through on both the upper and lower casting templates.

[0017] Preferably, one end of the extended positioning screw is inserted into the through hole, a positioning plate is fitted on the extended positioning screw, the positioning plate abuts against the other side of the upper and lower casting templates, and a nut for locking is threaded to the end of the extended positioning screw.

[0018] The beneficial effects of this invention are as follows: by setting a conical boss and a conical groove sleeve, during the docking process of the upper precast concrete component and the lower precast concrete component, the conical boss extends into the conical groove sleeve and forms a shape fit, realizing automatic centering and rapid assembly of the upper precast concrete component and the lower precast concrete component; after assembly, concrete is poured into the cavity formed by the upper pouring template and the lower pouring template, so that the upper precast concrete component and the lower precast concrete component form an integral structure, ensuring connection strength and stability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the exploded structure of the present invention.

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 4 This is a schematic diagram of the connecting plate in this invention.

[0023] Figure 5 This is a schematic diagram of the positioning component in this invention.

[0024] Figure 6 This is a schematic cross-sectional view of the precast concrete component in this invention.

[0025] In the diagram: 1. Upper precast concrete component, 2. Connecting plate, 3. Mounting rod, 4. Conical protrusion, 5. Upper casting template, 6. Lower precast concrete component, 7. Conical groove sleeve, 8. Lower casting template, 9. Positioning component, 9. Mounting plate, 901. Extended positioning screw, 901. Positioning plate, 903. Top embedded part, 10. Top connecting steel bar, 11. Casting port, 12. Bottom embedded part, 13. Bottom connecting steel bar, 14. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-6 As shown, a modular building precast concrete component quick connection structure includes an upper precast concrete component 1, with a connecting plate 2 embedded in the bottom of the upper precast concrete component 1. An installation rod 3 is fixedly connected to the bottom of the connecting plate 2, and a conical protrusion 4 is fixedly provided at the end of the installation rod 3; an upper casting template 5 is fixedly set at the bottom of the connecting plate 2, and together with the connecting plate 2, it encloses the upper casting cavity; a lower precast concrete component 6 is set below the upper precast concrete component 1, with a conical groove on the top of the lower precast concrete component 6, and a conical groove sleeve 7 adapted to the conical protrusion 4 is embedded in the conical groove; a lower casting template 8 is fixedly set at the top of the lower precast concrete component 6, and together with the lower precast concrete component 6, it encloses the lower casting cavity, and the upper casting cavity and the lower casting cavity are connected to form an integral post-cast cavity; and a positioning component 9 is set on the upper casting template 5 and the lower casting template 8.

[0028] In use, the upper precast concrete component 1 is first lifted and moved to a position directly above the lower precast concrete component 6 using hoisting equipment. The upper precast concrete component 1 is then slowly lowered. During this process, the conical protrusion 4 at the bottom of the upper precast concrete component 1 gradually approaches the conical groove sleeve 7 within the conical groove at the top of the lower precast concrete component 6. Utilizing the shape compatibility between the conical protrusion 4 and the conical groove sleeve 7, the conical protrusion 4 can automatically guide and extend into the conical groove sleeve 7, eliminating the need for repeated manual adjustments and quickly achieving the initial docking and positioning of the upper precast concrete component 1 and the lower precast concrete component 6. After the initial docking is completed, the positioning component 9 is used to further lock the upper casting template 5 and the lower casting template 8. Positioning ensures precise connection between the upper and lower pouring cavities, forming a complete integrated post-pouring cavity. After positioning, concrete is poured into the integrated post-pouring cavity, filling both the upper and lower cavities. Once the concrete has solidified, the upper precast concrete component 1 is firmly connected to the lower precast concrete component 6 via the connecting plate 2, installation rod 3, and conical protrusion 4, along with the conical groove sleeve 7 and lower pouring template 8. This not only effectively improves the docking efficiency between the upper and lower precast concrete components 1 and 6 and reduces the amount of manual alignment work, but also significantly improves the accuracy and stability of the connection, ensuring the load-bearing capacity of the connection structure and meeting the construction requirements of efficient modular building assembly.

[0029] A top embedded part 10 is fixedly installed on the top of the connecting plate 2. The top embedded part 10 is embedded inside the upper precast concrete component 1. The top embedded part 10 can evenly transfer the load on the connecting plate 2 to the body of the upper precast concrete component 1, so as to avoid stress concentration or pull-out at the connection between the connecting plate 2 and the upper precast concrete component 1.

[0030] The bottom of the connecting plate 2 is fixedly provided with top connecting steel bars 11 in a matrix pattern. The top connecting steel bars 11 extend into the upper pouring cavity. The lower precast concrete component 6 is embedded with bottom connecting steel bars 14 in a matrix pattern. The bottom connecting steel bars 14 extend into the lower pouring cavity. The side wall of the upper pouring template 5 is provided with a pouring port 12, which is connected to the upper pouring cavity.

[0031] In use, the top connecting steel bar 11 is evenly distributed and extends into the upper casting cavity formed by the upper casting formwork 5 and the connecting plate 2 after being hoisted into place with the upper precast concrete component 1. The bottom connecting steel bar 14 is embedded in the lower precast concrete component 6 and extends into the lower casting cavity formed by the lower casting formwork 8 and the lower precast concrete component 6. After the upper precast concrete component 1 and the lower precast concrete component 6 are aligned and assembled, the upper casting cavity and the lower casting cavity are connected to form an integral post-casting cavity. Subsequently, concrete is poured into the cavity through the pouring port 12 on the side wall of the upper casting formwork 5. The concrete pouring port 12 smoothly flows into the upper pouring cavity and fills the entire post-pouring cavity, completely enclosing and solidifying the top connecting steel bar 11 and the bottom connecting steel bar 14 into one. After the concrete solidifies, the top connecting steel bar 11 and the bottom connecting steel bar 14 together form an integral load-bearing steel skeleton, which greatly improves the structural strength and shear and tensile properties of the post-pouring area, and makes the upper precast concrete component 1 and the lower precast concrete component 6 form a firm and reliable integral connection. At the same time, the pouring port 12 ensures convenient concrete pouring operation and dense filling, improving the assembly construction efficiency and the overall stability of the connection structure.

[0032] The bottom of the lower casting formwork 8 is fixedly provided with a bottom embedded part 13. The bottom embedded part 13 is embedded inside the lower precast concrete component 6. The bottom embedded part 13 can evenly transfer the load on the lower casting formwork 8 to the body of the lower precast concrete component 6, and prevent the lower casting formwork 8 and the lower precast concrete component 6 from becoming loose.

[0033] The positioning component 9 includes a mounting plate 901 located on one side of the upper casting template 5 and the lower casting template 8. An extended positioning screw 902 is fixedly connected to one side of the mounting plate 901. Both the upper casting template 5 and the lower casting template 8 have through holes for the extended positioning screw 902 to pass through. One end of the extended positioning screw 902 passes through the through hole. A positioning plate 903 is sleeved on the extended positioning screw 902. The positioning plate 903 abuts against the other side of the upper casting template 5 and the lower casting template 8. A nut for locking is threaded to the end of the extended positioning screw 902.

[0034] In use, after the upper precast concrete component 1 and the lower precast concrete component 6 have completed their initial alignment and before pouring concrete, the extended positioning screw 902 in the positioning component 9 is passed through the corresponding through holes on the upper pouring template 5 and the lower pouring template 8. The positioning plate 903 is then fitted onto the extended positioning screw 902 and placed tightly against the outside of the upper pouring template 5 and the lower pouring template 8. The nut at the end of the extended positioning screw 902 is then tightened. The upper pouring template 5 and the lower pouring template 8 are firmly clamped and positioned by the cooperation of the nut and the positioning plate 903.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid connection structure for precast concrete components in modular buildings, characterized in that, include: The upper precast concrete component (1) has a connecting plate (2) embedded at the bottom of the upper precast concrete component (1), and an installation rod (3) is fixedly connected to the bottom of the connecting plate (2). A conical protrusion (4) is fixedly provided at the end of the installation rod (3). The upper casting template (5) is fixedly set at the bottom of the connecting plate (2) and together with the connecting plate (2) encloses the upper casting cavity; The lower precast concrete component (6) is located below the upper precast concrete component (1). The top of the lower precast concrete component (6) is provided with a conical groove, and a conical groove sleeve (7) adapted to the conical protrusion (4) is embedded in the conical groove. The lower pouring formwork (8) is fixedly set on the top of the lower precast concrete component (6) and together with the lower precast concrete component (6) encloses the lower pouring cavity. The upper pouring cavity is connected to the lower pouring cavity to form an integral post-pouring cavity. Positioning component (9) is set on the upper casting template (5) and the lower casting template (8).

2. The rapid connection structure for precast concrete components of modular buildings according to claim 1, characterized in that: The top of the connecting plate (2) is fixedly provided with a top embedded part (10), which is embedded inside the upper precast concrete component (1).

3. The rapid connection structure for precast concrete components of modular buildings according to claim 1, characterized in that: The bottom of the connecting plate (2) is fixed with top connecting steel bars (11) in a matrix pattern, and the top connecting steel bars (11) extend into the upper casting cavity.

4. The rapid connection structure for precast concrete components of modular buildings according to claim 1, characterized in that: The side wall of the upper casting template (5) is provided with a casting port (12), which is connected to the upper casting cavity.

5. The rapid connection structure for precast concrete components of modular buildings according to claim 1, characterized in that: The bottom of the lower casting formwork (8) is fixedly provided with a bottom embedded part (13), which is embedded inside the lower precast concrete component (6).

6. The rapid connection structure for precast concrete components of modular buildings according to claim 1, characterized in that: The lower precast concrete component (6) has a matrix of pre-embedded bottom connecting steel bars (14), which extend into the lower casting cavity.

7. The rapid connection structure for precast concrete components of modular buildings according to claim 1, characterized in that: The positioning component (9) includes a mounting plate (901) located on one side of the upper casting template (5) and the lower casting template (8). An extended positioning screw (902) is fixedly connected to one side of the mounting plate (901). Both the upper casting template (5) and the lower casting template (8) have through holes for the extended positioning screw (902) to pass through.

8. The rapid connection structure for precast concrete components of modular buildings according to claim 7, characterized in that: One end of the extended positioning screw (902) is inserted into the through hole, and a positioning plate (903) is fitted on the extended positioning screw (902). The positioning plate (903) abuts against the other side of the upper casting template (5) and the lower casting template (8). The end of the extended positioning screw (902) is threaded with a nut for locking.

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