Integrally-cast basement roof post-cast strip

Abstract

The utility model discloses an integrally cast basement roof post-cast strip, and relates to the technical field of roof post-cast strips, the top of a bearing platform is provided with a limiting mechanism, the top of a bearing platform body is provided with a post-cast strip body, and the limiting mechanism is located in the post-cast strip body; first bent steel bars are arranged on the inner side of the bearing platform, and the bearing platform supports the post-cast strip body through the first bent steel bars. The top plate mechanisms are connected to the left side and the right side of the bearing platform and fixedly connected with the bearing platform, a pipeline is arranged in the bearing platform and penetrates through the post-cast strip body, and four sets of supporting steel bars are arranged in the pipeline. Through the arrangement of the limiting mechanism, when the pipeline is fixed to the bearing platform, the position of the pipeline can be limited and fixed through the limiting mechanism, and the limiting mechanism is fixedly connected with the top plate mechanism, so that the top plate mechanism can support the limiting mechanism, and the limiting mechanism can be firmer when being fixed again.

Description

Technical Field

[0001] This utility model relates to the technical field of post-cast strips for roof slabs, specifically a post-cast strip for an integrally cast basement roof slab. Background Technology

[0002] Post-cast strips are structural members used in building construction to prevent harmful cracks that may occur in cast-in-place reinforced concrete structures due to uneven temperature and shrinkage. They serve as connections between building slabs. Generally, the concrete grade used in post-cast strips is one level higher than that of the original building. However, existing post-cast strips for roof slabs have some shortcomings, such as:

[0003] Application No.: CN202310705866.1 describes a pre-sealing structure for the post-cast strip of a basement roof slab and its implementation method. This equipment embeds one end of a screw rod into the roof slab body and installs a load-bearing plate at the bottom of the roof slab body to increase its load-bearing capacity and support, facilitating other projects within the basement, improving construction efficiency, and shortening the construction period. However, in actual use, the flow direction of concrete during the pouring process may affect the position of the pipes, potentially leading to positional shifts or angular tilts in the pipes after the post-cast strip is formed. This could affect the shape of the concrete, causing cracks, and may also damage the pipes themselves.

[0004] Therefore, we propose a post-cast strip for the basement roof slab that can be cast in one piece to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an integrally cast post-cast strip for basement roof slabs, in order to solve the problem mentioned in the background art that the flow direction of concrete may affect the position of the pipe during the casting process of the current post-cast strips on the market, which may lead to the pipe shifting or tilting after the post-cast strip is formed, which may affect the shape of the concrete and cause cracking, and may also cause damage to the pipe itself.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a post-cast strip for an integrally cast basement roof slab, comprising a foundation and a post-cast strip body connected to the top of the foundation. The top of the foundation is provided with a limiting mechanism, and the top of the foundation body is provided with the post-cast strip body, and the limiting mechanism is located inside the post-cast strip body. The inner side of the foundation is provided with a first bent steel bar, and the foundation supports the post-cast strip body through the first bent steel bar.

[0007] The left and right sides of the foundation are connected to the top plate mechanism, and the top plate mechanism is fixedly connected to the foundation. The foundation is equipped with pipes that pass through the post-cast strip body and have four sets of supporting steel bars inside.

[0008] By setting up a limiting mechanism, the position of the pipeline can be limited and fixed when it is fixed on the bearing platform. The limiting mechanism is also fixedly connected to the top plate mechanism, so the top plate mechanism can support the limiting mechanism, making the limiting mechanism more secure when it is fixed.

[0009] As a preferred technical solution of this utility model, the limiting mechanism includes a limiting ring, which is fixedly connected to the outside of the pipe, and a second bent steel bar is provided on the outside of the limiting ring. The limiting ring is fixedly connected to the top plate mechanism through the second bent steel bar.

[0010] The above technical solution enables the limiting ring to be more firmly fixed to the inside of the top plate, thereby increasing the stability of the limiting ring during pouring and preventing it from being eroded by concrete and thus shifting.

[0011] As a preferred technical solution of this utility model, the top plate mechanism includes a top plate body, and the top plate body is provided with horizontal ribs, and the top of the horizontal ribs is overlapped with longitudinal ribs. The top of the first bent steel bar passes through the post-cast strip body and is overlapped and fixed with the longitudinal ribs.

[0012] The main body of the top plate is provided with a support plate at the bottom, and the support plate is provided with a steel mesh inside. The middle part of the steel mesh is fixedly connected to the foundation, and the top of the steel mesh is lapped and fixed with the second bent steel bar.

[0013] The above technical solution enables the post-pouring strip body to be fixedly connected to the main body of the top slab through the first bent steel bar, thereby allowing the main body of the top slab to support the post-pouring strip body and increasing the stability of the post-pouring strip.

[0014] As a preferred technical solution of this utility model, an embedded part is provided on the outside of the steel mesh, and the embedded part is located at the bottom of the main body of the top plate.

[0015] The above technical solution enables the roof slab to be connected to other equipment through embedded parts when connected to other building structures, thereby making the roof slab more stable when connected to other equipment.

[0016] As a preferred technical solution of this utility model, the top of the top plate body is provided with a top plate surface, and the top plate surface is made of a scratch-resistant material, and the top of the top plate surface is fixedly connected to the bottom of the post-pouring strip body.

[0017] The above technical solution enables the top of the main body of the top plate to be protected by the surface of the top plate, thereby increasing the protective performance of the equipment.

[0018] As a preferred technical solution of this utility model, the bottom of the post-pouring strip body is provided with an adhesive mortar layer, and the post-pouring strip body is fixedly connected to the inner groove of the foundation through the adhesive mortar layer.

[0019] The above technical solution enables the post-pouring strip to be more firmly connected to the foundation, thereby increasing the stability of the equipment.

[0020] As a preferred technical solution of this utility model, a protective layer is provided on the top of the post-pouring strip body, and a sealing mortar layer is provided at the connection between the post-pouring strip body and the surface of the top plate.

[0021] The above technical solution enables the connection between the post-cast strip body and the top slab surface to be filled with a sealing mortar layer, thereby increasing the density of the post-cast strip structure.

[0022] Compared with the prior art, the beneficial effects of this utility model are: by setting the limiting mechanism, the position of the pipe can be limited and fixed when the pipe is fixed on the bearing platform. The limiting mechanism is also fixedly connected to the top plate mechanism, so the top plate mechanism can support the limiting mechanism, making the limiting mechanism more secure when it is fixed.

[0023] Furthermore, by setting the second bent steel bar, the limiting ring can be more firmly fixed to the inside of the top plate, thereby increasing the stability of the limiting ring when it is poured and preventing it from being eroded by the concrete and thus shifting.

[0024] Furthermore, by setting up embedded parts, the roof slab can be connected to other equipment when connected to other building structures, thus making the roof slab more stable when connected to other equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the elevation structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the elevation structure of the main body of the top plate of this utility model;

[0027] Figure 3 This is a schematic diagram of the elevation structure of the support plate of this utility model;

[0028] Figure 4 This is a schematic diagram of the elevation structure of the post-cast strip body of this utility model;

[0029] Figure 5 This is a front view cross-sectional structural diagram of the post-pouring strip body of this utility model;

[0030] Figure 6 This is a schematic diagram of the elevation structure of the pipe of this utility model.

[0031] In the diagram: 1. Foundation; 2. Bonding mortar layer; 3. Post-cast strip body; 4. Pipe; 5. Main body of the top slab; 6. Top slab surface; 7. Support plate; 8. First bent reinforcing bar; 9. Horizontal bar; 10. Longitudinal bar; 11. Limiting ring; 12. Second bent reinforcing bar; 13. Supporting reinforcing bar; 14. Reinforcing mesh; 15. Embedded parts; 16. Protective layer; 17. Sealing mortar layer. Detailed Implementation

[0032] 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.

[0033] Example 1:

[0034] To address the issue of pipe displacement caused by post-cast strips during the pouring process in existing technologies, the following solution is disclosed. Please refer to [link / reference]. Figure 1-6 This utility model provides a technical solution: an integrally cast-in-place post-cast strip for the roof slab of a basement, including a foundation 1 and a post-cast strip body 3 connected to the top of the foundation 1. The top of the foundation 1 is provided with a limiting mechanism, and the top of the foundation body 1 is provided with the post-cast strip body 3, and the limiting mechanism is located inside the post-cast strip body 3; the inner side of the foundation 1 is provided with a first bent steel bar 8, and the foundation 1 supports the post-cast strip body 3 through the first bent steel bar 8.

[0035] The left and right sides of the foundation 1 are connected to the top plate mechanism, and the top plate mechanism is fixedly connected to the foundation 1. The foundation 1 is equipped with a pipe 4, which passes through the post-pouring strip body 3. The pipe 4 is equipped with four sets of supporting steel bars 13.

[0036] The limiting mechanism includes a limiting ring 11, which is fixedly connected to the outside of the pipe 4, and a second bent steel bar 12 is provided on the outside of the limiting ring 11. The limiting ring 11 is fixedly connected to the top plate mechanism through the second bent steel bar 12.

[0037] The top plate mechanism includes a top plate body 5, and the top plate body 5 is provided with horizontal ribs 9 inside, and the top of the horizontal ribs 9 is overlapped with longitudinal ribs 10. The top of the first bent steel bar 8 passes through the post-cast strip body 3 and is overlapped and fixed with the longitudinal ribs 10. The bottom of the top plate body 5 is provided with a support plate 7, and the support plate 7 is provided with a steel mesh 14 inside. The middle part of the steel mesh 14 is fixedly connected to the foundation 1, and the top of the steel mesh 14 is overlapped and fixed with the second bent steel bar 12.

[0038] An embedded part 15 is provided on the outside of the steel mesh 14, and the embedded part 15 is located at the bottom of the main body of the top slab 5; the top of the main body of the top slab 5 is provided with a top slab surface 6, and the top slab surface 6 is made of a scratch-resistant material, and the top of the top slab surface 6 is fixedly connected to the bottom of the post-pouring strip body 3; the bottom of the post-pouring strip body 3 is provided with a bonding mortar layer 2, and the post-pouring strip body 3 is fixedly connected to the inner groove of the foundation 1 through the bonding mortar layer 2; the top of the post-pouring strip body 3 is provided with a protective layer 16, and a sealing mortar layer 17 is provided at the connection between the post-pouring strip body 3 and the top slab surface 6;

[0039] When using the post-cast strip of the basement roof slab cast in one piece, firstly, holes are opened in the empty groove of the foundation 1 so that the holes are aligned with the limiting mechanism. Then, pipe 4 is passed through the foundation 1 and the limiting mechanism. Subsequently, bonding mortar layer 2 is poured in the empty groove inside the foundation 1. When the bonding mortar layer 2 is in a semi-dry state, the post-cast strip body 3 is poured again so that the first bent steel bar 8 is mixed with the concrete poured in the post-cast strip body 3, thereby fixing the post-cast strip body 3 under the support of the horizontal bar 9 and the longitudinal bar 10.

[0040] When the concrete of the post-pouring strip body 3 is poured, the limiting ring 11 inside the limiting mechanism is fixedly connected to the second bent steel bar 12, and the second bent steel bar 12 is overlapped and fixed with the steel mesh 14. Therefore, the second bent steel bar 12 will fix the limiting ring 11 with the support force of the steel mesh 14, thereby ensuring that the pipe 4 will not tilt when the concrete of the post-pouring strip body 3 is poured. In addition, since the pipe 4 is provided with supporting steel bars 13, the supporting steel bars 13 will support the pipe 4 from the inside, thereby increasing the strength of the pipe 4.

[0041] Working principle: When using the post-cast strip of the basement roof slab cast in one piece, firstly, holes are opened in the empty groove of the foundation 1 so that the holes are aligned with the limiting mechanism. Then, pipe 4 is passed through the foundation 1 and the limiting mechanism. Subsequently, bonding mortar layer 2 is poured in the empty groove inside the foundation 1. When the bonding mortar layer 2 is in a semi-dry state, the post-cast strip body 3 is poured again, so that the first bent steel bar 8 is mixed with the concrete poured in the post-cast strip body 3, thereby fixing the post-cast strip body 3 under the support of the horizontal bar 9 and the longitudinal bar 10.

[0042] When the concrete of the post-pouring strip body 3 is poured, the limiting ring 11 inside the limiting mechanism is fixedly connected to the second bent steel bar 12, and the second bent steel bar 12 is overlapped and fixed with the steel mesh 14. Therefore, the second bent steel bar 12 will fix the limiting ring 11 with the support force of the steel mesh 14, thereby ensuring that the pipe 4 will not tilt when the concrete of the post-pouring strip body 3 is poured. In addition, since the pipe 4 is provided with supporting steel bars 13, the supporting steel bars 13 will support the pipe 4 from the inside, thereby increasing the strength of the pipe 4.

[0043] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cast-in-place post-cast strip for a basement roof slab, comprising a foundation (1) and a post-cast strip body (3) connected to the top of the foundation (1), characterized in that, The top of the foundation (1) is provided with a limiting mechanism, and the top of the foundation body (1) is provided with a post-pouring strip body (3), and the limiting mechanism is located inside the post-pouring strip body (3); the inner side of the foundation (1) is provided with a first bent steel bar (8), and the foundation (1) supports the post-pouring strip body (3) through the first bent steel bar (8). The foundation (1) is connected to a top plate mechanism on the left and right sides, and the top plate mechanism is fixedly connected to the foundation (1). The foundation (1) is provided with a pipe (4), which passes through the post-pouring strip body (3). The pipe (4) is provided with four sets of supporting steel bars (13).

2. The post-cast strip of the integrally cast basement roof slab according to claim 1, characterized in that, The limiting mechanism includes a limiting ring (11), and the limiting ring (11) is fixedly connected to the outside of the pipe (4). A second bent steel bar (12) is provided on the outside of the limiting ring (11), and the limiting ring (11) is fixedly connected to the top plate mechanism through the second bent steel bar (12).

3. The post-cast strip of the integrally cast basement roof slab according to claim 2, characterized in that, The top plate mechanism includes a top plate body (5), and the top plate body (5) is provided with a horizontal bar (9), and the top of the horizontal bar (9) is overlapped with a longitudinal bar (10). The top of the first bent bar (8) passes through the post-cast strip body (3) and overlaps with the longitudinal bar (10) for fixation. The bottom of the main body of the top plate (5) is provided with a support plate (7), and the support plate (7) is provided with a steel mesh (14). The middle part of the steel mesh (14) is fixedly connected to the foundation (1), and the top of the steel mesh (14) is lapped and fixed with the second bent steel bar (12).

4. The post-cast strip of the integrally cast basement roof slab according to claim 3, characterized in that, The steel mesh (14) is provided with embedded parts (15) on the outside, and the embedded parts (15) are located at the bottom of the main body of the top plate (5).

5. The post-cast strip of the integrally cast basement roof slab according to claim 4, characterized in that, The top of the top plate body (5) is provided with a top plate surface (6), and the top plate surface (6) is made of a scratch-resistant material, and the top of the top plate surface (6) is fixedly connected to the bottom of the post-pouring strip body (3).

6. The post-cast strip of the integrally cast basement roof slab according to claim 5, characterized in that, The bottom of the post-cast strip body (3) is provided with a bonding mortar layer (2), and the post-cast strip body (3) is fixedly connected to the inner groove of the foundation (1) through the bonding mortar layer (2).

7. The post-cast strip of the integrally cast basement roof slab according to claim 6, characterized in that, The top of the post-cast strip body (3) is provided with a protective layer (16), and a sealing mortar layer (17) is provided at the connection between the post-cast strip body (3) and the top plate surface (6).

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