Prefabricated composite floor slab for fabricated building

By designing connecting protrusions, grooves, and sealing gaskets on precast floor slabs, and combining them with sealing components and bolt connections, the problem of floor slab joint leakage was solved, achieving higher sealing performance and a more convenient construction process.

CN224532005UActive Publication Date: 2026-07-21ZHONGYUAN JIANGANG CONSTR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGYUAN JIANGANG CONSTR TECH CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing precast floor slabs are prone to leakage at the joints, which increases the difficulty of later maintenance.

Method used

The design incorporates a first connecting protrusion and a first slot on one side of the floor slab body, along with a first sealing gasket. Combined with a detachable sealing component and a sealing gasket, the joints are further tightened by connecting bolts to enhance the sealing performance of the floor slab joints.

Benefits of technology

It improves the sealing performance of floor slab joints, reduces the chance of leakage, simplifies later maintenance, and enhances ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concrete prefabricated part, and disclose a kind of prefabricated composite floor of fabricated building, including N floor piece, N=1, the floor piece includes floor body, the first connecting protrusion is formed in the recess of one side along the length direction of floor body, and the first clamping groove is formed in the recess of another side along the length direction of floor body, and the inner wall of first clamping groove is adhered with first gasket;The side of floor body close to first connecting protrusion is provided with detachable first plugging piece, and the side of floor body close to first clamping groove is provided with detachable second plugging piece, and the side of first plugging piece is recessed to form the second clamping groove matched with first connecting protrusion;The utility model is matched by first connecting protrusion, first clamping groove and first gasket, can increase the sealing between the adjacent two floor bodies, to reduce the probability of floor body joint leakage, reduce the maintenance difficulty of later period.
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Description

Technical Field

[0001] This utility model relates to the field of precast concrete components, and in particular to a precast composite floor slab for prefabricated buildings. Background Technology

[0002] Prefabricated construction, as an important direction in the development of modern building industrialization, significantly improves construction efficiency and quality through standardized design, factory production, assembly-line construction, and information-based management. Among these components, precast composite floor slabs, a key component of precast concrete structures, are composed of a precast base slab and a cast-in-place composite layer. They combine the ease of construction of precast components with the overall load-bearing capacity of cast-in-place structures and are widely used in residential, commercial, and industrial buildings. However, in existing precast floor slab systems, the slabs are laid in their designated positions, and then concrete is used to fill the joints. Therefore, these joints are prone to leakage, increasing the difficulty of later maintenance. Utility Model Content

[0003] This utility model proposes a prefabricated composite floor slab for prefabricated buildings to solve the problem of easy leakage at the joints of existing floor slabs.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated composite floor slab for prefabricated buildings, comprising N floor slab components, N≥1, wherein each floor slab component comprises a floor slab body, wherein a first connecting protrusion is formed by an indentation on one side of the floor slab body along its own length direction, and a first slot is formed by an indentation on the other side of the floor slab body along its own length direction, wherein a first sealing gasket is adhered to the inner wall of the first slot.

[0005] Preferably, a detachable first sealing member is provided on the side of the floor slab body near the first connecting protrusion, and a detachable second sealing member is provided on the side of the floor slab body near the first slot. One side of the first sealing member is recessed to form a second slot matching the first connecting protrusion, and one side of the second sealing member is recessed to form a second connecting protrusion matching the first slot. A second sealing gasket is adhered to the inner wall of the second slot.

[0006] Preferably, the top of the floor slab body has a recessed first connecting hole on one side and a recessed second connecting hole on the other side. The first connecting hole is located on one side of the first connecting protrusion, and the second connecting hole is located on one side of the first slot. A first connecting screw is screwed onto the first connecting hole, and the first connecting screw matches the second connecting hole.

[0007] Preferably, the floor slab body has an indentation along its length to form a through hole.

[0008] Preferably, the first sealing member includes a first sealing plate, and the second slot is formed on one side of the first sealing plate.

[0009] Preferably, the first sealing plate has a third connecting hole at both its top and bottom, the second sealing member includes a second sealing plate, and the second sealing plate has a fourth connecting hole at both its top and bottom. A second connecting screw is screwed into the fourth connecting hole, and the second connecting screw matches the third connecting hole.

[0010] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) When the floor slab is laid, the first connecting protrusion, the first slot and the first sealing gasket work together to increase the sealing between two adjacent floor slabs, reduce the chance of leakage at the joint of the floor slab, and reduce the difficulty of later maintenance.

[0011] (2) By setting the first sealing component, the second sealing component, the second slot, the second connecting protrusion, and the second sealing gasket, after the floor slab body is laid, it can be connected to the two outermost floor slab bodies through the first sealing component and the second sealing component, making the device easy to lay and use, and improving the convenience of use.

[0012] (3) By setting the first connecting hole, the second connecting hole, the first connecting screw, the third connection, the fourth connecting hole and the second connecting screw, the connection between the floor slab body, the first sealing plate and the second sealing plate is more secure, further reducing the probability of leakage at the joint of the floor slab body and further reducing the difficulty of later maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is one of the perspective views of this utility model; Figure 2 This is a second perspective view of the present invention; Figure 3 This is one of the three-dimensional views after the first sealing component, the floor slab component, and the second sealing component have been separated. Figure 4 This is the second perspective view after the first sealing component, the floor slab component, and the second sealing component have been separated. Figure 5 This is one of the three-dimensional views of the floor slab components; Figure 6 This is the second 3D view of the floor slab components; Figure 7 for Figure 5 Enlarged view of section A in the middle; Figure 8 for Figure 6 Enlarged view of section B; Figure 9 This is a three-dimensional view of the first sealing component; Figure 10 This is a three-dimensional view of the second sealing component; Figure 11 for Figure 9 Enlarged view of section C; Figure 12 for Figure 10 Enlarged view of section D in the middle; Figure 13 This is a perspective view of the present invention after adjusting the number of floor slab components; In the diagram: 1. Floor slab component; 11. Floor slab body; 12. First slot; 13. First sealing gasket; 14. Through hole; 15. First connecting protrusion; 16. First connecting hole; 17. First connecting screw; 18. Second connecting hole; 2. First sealing component; 21. First sealing plate; 22. Second sealing gasket; 23. Second slot; 24. Third connecting hole; 3. Second sealing component; 31. Second sealing plate; 32. Second connecting protrusion; 33. Fourth connecting hole; 34. Second connecting screw. Detailed Implementation

[0015] 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.

[0016] like Figures 1-13 As shown, a prefabricated composite floor slab for prefabricated buildings includes N floor slab components 1, where N ≥ 1. Each floor slab component 1 includes a floor slab body 11. The floor slab body 11 has a first connecting protrusion 15 recessed on one side along its own length direction, and a first slot 12 recessed on the other side along its own length direction. A first sealing gasket 13 is adhered to the inner wall of the first slot 12.

[0017] According to the above technical solution, when constructing a building, the required number of floor slabs 11 are laid sequentially to the construction location based on the construction requirements. The first connecting protrusion 15 on the adjacent floor slabs 11 contacts the first slot 12, and the first sealing gasket 13 cooperates to make the adjacent floor slabs 11 firmly contact each other and fix the floor slabs 11. After the floor slabs 11 are fixed, concrete is poured into the gap between the two adjacent floor slabs 11, thereby making the two floor slabs 11 firmly connected and completing the laying of the floor slabs 11.

[0018] Furthermore, in this utility model, in order to block and seal the first slot 12 and the first connecting protrusion 15 on the outermost floor slab body 11, such as... Figures 1-6 As shown, a detachable first sealing member 2 is provided on the side of the floor slab body 11 near the first connecting protrusion 15, and a detachable second sealing member 3 is provided on the side of the floor slab body 11 near the first slot 12. One side of the first sealing member 2 is recessed to form a second slot 23 matching the first connecting protrusion 15, and one side of the second sealing member 3 is recessed to form a second connecting protrusion 32 matching the first slot 12. A second sealing gasket 22 is adhered to the inner wall of the second slot 23.

[0019] In this embodiment, after multiple floor slab bodies 11 are laid sequentially to the erection position, the first sealing member 2 is placed on the side of the outermost floor slab body 11 near the first connecting protrusion 15, so that the second slot 23 on the first sealing member 2 engages with the first connecting protrusion 15 on the floor slab body 11. Then, the second sealing member 3 is placed on the side of the outermost floor slab body 11 near the first slot 12, so that the second connecting protrusion 32 on the second sealing member 3 engages with the first slot 12 on the floor slab body 11, thereby connecting the first sealing member 2 and the second sealing member 3 to the floor slab body 11.

[0020] Furthermore, in this utility model, when multiple floor slab bodies 11 are connected, in order to make the floor slab bodies 11 more secure, such as... Figures 1-8 As shown, the top of the floor slab body 11 is recessed on one side to form a first connecting hole 16, and recessed on the other side to form a second connecting hole 18. The first connecting hole 16 is located on one side of the first connecting protrusion 15, and the second connecting hole 18 is located on one side of the first slot 12. A first connecting screw 17 is screwed onto the first connecting hole 16, and the first connecting screw 17 matches the second connecting hole 18.

[0021] In this embodiment, after the first connecting protrusion 15 on the floor slab body 11 engages with the first slot 12 on the other floor slab body 11, the first connecting screw 17 is inserted into the first connecting hole 16 and the second connecting hole 18 and screwed together, thereby making the connection of the two floor slab bodies 11 more secure.

[0022] After the floor slab body 11 is laid, in order to facilitate the installation of reinforcing bars into the floor slab body 11, such as Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the floor slab body 11 is recessed inward along its own length to form a through hole 14.

[0023] Specifically, in one embodiment, regarding the aforementioned first sealing element 2, as... Figures 1-7As shown, the first sealing member 2 includes a first sealing plate 21, and a second slot 23 is formed on one side of the first sealing plate 21.

[0024] In this embodiment, when it is necessary to connect the first sealing plate 21 to the floor slab body 11, the second slot 23 on the first sealing plate 21 engages with the first connecting protrusion 15 on the floor slab body 11, thereby connecting the first sealing plate 21 to the floor slab body 11. Then, the first connecting screw 17 is inserted into the first connecting hole 16 and the second connecting hole 18 and screwed together, thereby connecting the first sealing plate 21 to the floor slab body 11.

[0025] Specifically, in one embodiment, regarding the aforementioned second sealing element 3, as... Figures 1-4 And such as Figures 11-13 As shown, the first sealing plate 21 has a third connecting hole 24 formed at both the top and bottom. The second sealing component 3 includes a second sealing plate 31, and the second sealing plate 31 has a fourth connecting hole 33 formed at both the top and bottom. A second connecting screw 34 is screwed into the fourth connecting hole 33, and the second connecting screw 34 matches the third connecting hole 24.

[0026] In this embodiment, when it is necessary to connect the second sealing plate 31 to the floor slab body 11, the second sealing plate 31 is placed on the outermost side of the floor slab body 11 closest to the first slot 12, so that the fourth connecting hole 33 and the second connecting hole 18 are aligned. Then, the second connecting screw 34 is inserted between the fourth connecting hole 33 and the second connecting hole 18 and rotated to fix the second sealing plate 31 on the floor slab body 11.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 prefabricated composite floor slab for prefabricated buildings, comprising N floor slab components (1), where N≥1, characterized in that: The floor slab component (1) includes a floor slab body (11), the floor slab body (11) is recessed on one side along its own length direction to form a first connecting protrusion (15), and the floor slab body (11) is recessed on the other side along its own length direction to form a first slot (12), and a first sealing gasket (13) is adhered to the inner wall of the first slot (12).

2. The prefabricated composite floor slab for prefabricated buildings according to claim 1, characterized in that: The floor slab body (11) is provided with a detachable first sealing member (2) on the side near the first connecting protrusion (15), and the floor slab body (11) is provided with a detachable second sealing member (3) on the side near the first slot (12). The first sealing member (2) is recessed on one side to form a second slot (23) matching the first connecting protrusion (15), and the second sealing member (3) is recessed on one side to form a second connecting protrusion (32) matching the first slot (12). The inner wall of the second slot (23) is bonded with a second sealing gasket (22).

3. A prefabricated composite floor slab for prefabricated buildings according to claim 2, characterized in that: The top of the floor slab body (11) is recessed on one side to form a first connecting hole (16) and recessed on the other side to form a second connecting hole (18). The first connecting hole (16) is located on one side of the first connecting protrusion (15), and the second connecting hole (18) is located on one side of the first slot (12). A first connecting screw (17) is screwed onto the first connecting hole (16), and the first connecting screw (17) matches the second connecting hole (18).

4. A prefabricated composite floor slab for prefabricated buildings according to any one of claims 1-3, characterized in that: The floor slab body (11) has a through hole (14) formed by recessing inward along its own length direction.

5. A prefabricated composite floor slab for prefabricated buildings according to claim 2 or 3, characterized in that: The first sealing member (2) includes a first sealing plate (21) and a second slot (23) is formed on one side of the first sealing plate (21).

6. A prefabricated composite floor slab for prefabricated buildings according to claim 5, characterized in that: The first sealing plate (21) has a third connecting hole (24) formed at the top and bottom. The second sealing member (3) includes a second sealing plate (31). The second sealing plate (31) has a fourth connecting hole (33) formed at the top and bottom. A second connecting screw (34) is screwed into the fourth connecting hole (33). The second connecting screw (34) matches the third connecting hole (24).