Basement high-low span bottom plate combined connecting piece

By installing a steel frame reinforcement mechanism and a pouring mechanism between the high and low span slabs of the basement, the problem of low tensile strength of the shear wall was solved, and the stability and durability of the structure were improved.

CN223937314UActive Publication Date: 2026-02-24CHINA CONSTR FIFTH ENG DIV CORP LTD
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Patent Information

Application Number
CN202520530540.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-24
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The existing basement shear walls lack tensile and seismic resistance structures, resulting in low tensile strength of the infill. They are prone to shear failure under earthquakes or wind loads, leading to wall cracking or even collapse, which affects the structural durability and functionality.

Method used

The steel frame reinforcement mechanism and the pouring mechanism are adopted. The steel frame consists of four main rods, multiple horizontal rods and diagonal rods. It is fixed between the high-span base plate and the low-span base plate through positioning holes, fixing hoops and fixing bolts. Combined with the pouring mechanism, the pouring port, chute, sliding frame and sealing plate realize the filling and fixing of concrete to form a solid overall structure.

Benefits of technology

It enhances the tensile strength of the shear wall, prevents shear failure, improves the durability and functionality of the structure, and avoids wall cracking or collapse.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223937314U_ABST
    Figure CN223937314U_ABST
Patent Text Reader

Abstract

The utility model belongs to the field of basement construction, particularly relates to a basement high-low span bottom plate combined connecting piece, and aims to solve the problems that the existing shear wall is not provided with a tensile structure and an anti-seismic structure, so that the filling tensile strength of the shear wall is lower, and the shear wall is easy to shear and damage under the action of earthquake or wind load, so that the wall body cracks and even collapses. According to the technical scheme, the side slope comprises a side slope body, a high-span bottom plate and a low-span bottom plate are arranged on the top and one side of the side slope body respectively, and a pre-supporting plate is arranged between the high-span bottom plate and the low-span bottom plate. When in use, the position of the steel bar steel frame can be ensured to be accurate, the steel bar steel frame can be firmly fixed, the tensile strength of a shear wall formed in the later period can be enhanced, the situation that under the action of earthquakes or wind loads, shear damage is prone to occurring is avoided, the wall body is prevented from cracking or even collapsing, and then the structural durability and the use function are enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of basement construction technology, and in particular to a combination connector for basement floor slabs with varying heights. Background Technology

[0002] A basement is a room whose floor level is more than half the height of the room below the outdoor ground level. By building a basement under the ground floor of a building, the usable area of ​​the building can be increased, and the backfill soil in the center of the room can be saved, thereby improving the economic efficiency and usability of the building.

[0003] A search revealed that patent CN219157761U proposes a connection structure for different heights of a basement floor slab. This technical solution has the following problems:

[0004] The existing shear wall lacks tensile and seismic resistance structures, resulting in low infill tensile strength. Under earthquake or wind loads, it is prone to shear failure, leading to wall cracking or even collapse, which in turn affects the structural durability and functionality.

[0005] To address the aforementioned issues, this utility model document proposes a combined connector for basement slabs with varying heights. Utility Model Content

[0006] This utility model provides a combination connector for basement high and low span floor slabs, which solves the shortcomings of the prior art. Because the shear wall does not have a tensile structure and a seismic structure, the infill tensile strength of the shear wall is low, and it is prone to shear failure under earthquake or wind load, resulting in wall cracking or even collapse, which in turn affects the structural durability and functionality.

[0007] This utility model provides the following technical solution:

[0008] A basement floor slab connection component with varying floor heights includes:

[0009] The slope body has a high-span bottom plate and a low-span bottom plate respectively provided on its top and one side. A pre-support plate is provided between the high-span bottom plate and the low-span bottom plate, and a filling cavity is formed between the pre-support plate and the slope body.

[0010] The reinforcement mechanism is installed on one side of the slope body to strengthen the connection between the high-span bottom slab and the low-span bottom slab.

[0011] The pouring mechanism is set on the pre-support plate to facilitate the pouring of filling material into the filling cavity.

[0012] In one possible design, the reinforcement mechanism includes a steel frame, positioning holes, fixing hoops, and fixing bolts. The steel frame is located inside the filling cavity and consists of four main rods, multiple crossbars, and multiple diagonal rods to enhance the strength. The filling cavity is filled with concrete that integrates with the steel frame.

[0013] In one possible design, all four positioning holes are opened on the top side of the low-span base plate for positioning and insertion of steel reinforcement frames. Each fixing hoop is fixedly sleeved on the outer wall of the main rod. The fixing bolt passes through the bottom side of the fixing hoop. The bottom side of the high-span base plate has fixing holes symmetrically arranged in pairs for threaded connection of fixing bolts.

[0014] In one possible design, the pouring mechanism includes a pouring port, a chute, a sliding frame, a sealing plate, a lifting plate, a limiting groove, a magnet, an iron block, and a recess. The pouring port is located on one side of the pre-supported plate to facilitate pouring concrete. The chute is located inside the pre-supported plate. The sliding frame is slidably connected to the inside of the chute. The sealing plate is fixedly located on the inside of the sliding frame to facilitate opening or closing the pouring port.

[0015] In one possible design, the lifting plate is fixedly mounted on one side of the sealing plate, the limiting groove is opened on one side of the pre-support plate for limiting the sliding of the lifting plate, the groove is opened on one side of the lifting plate, the magnet is set on the top side of the lifting plate, and the iron block is set on the bottom side of one side of the limiting groove and is attracted to the magnet.

[0016] In one possible design, two insert rods are fixedly installed on the bottom side of the pre-supported plate, and two insertion holes for positioning and inserting the insert rods are opened on the top side of the low-span base plate.

[0017] In one possible design, a mounting bolt passes through one side of the pre-supported plate, and a threaded hole for threaded connection of the mounting bolt is provided on one side of the high-span base plate.

[0018] In this application, during use, the steel reinforcement frame is first placed inside the filling cavity. The steel reinforcement frame consists of four main rods, multiple horizontal rods, and diagonal rods to improve the overall structural strength and stability. Simultaneously, the steel reinforcement frame is inserted into the low-span base plate through positioning holes to ensure accurate positioning. Then, using fixing hoops on the outer wall and fixing bolts, the steel reinforcement frame is connected and fixed to the high-span base plate, thus achieving a firm fixation of the steel reinforcement frame. This enhances the tensile strength of the shear wall after later forming, preventing shear failure under earthquake or wind loads, avoiding wall cracking or even collapse, thereby enhancing structural durability and functionality. Subsequently, the pre-supported plate is placed between the high-span and low-span base plates. The bottom insert of the pre-supported plate is inserted into the insertion hole in the low-span base plate for initial positioning. Then, installation bolts are used to fix the pre-supported plate to the high-span base plate, thus achieving installation and fixation of the pre-supported plate for easy disassembly and improved convenience.

[0019] Next, a pouring port is located on one side of the pre-supported slab to facilitate concrete pouring. A sliding frame slides within a groove, and a sealing plate is fixed inside the sliding frame. The opening and closing of the pouring port can be controlled by sliding the sliding frame. A lifting plate is fixed on one side of the sealing plate, and a limiting groove is located on one side of the pre-supported slab. The limiting groove is used to limit the sliding of the lifting plate, ensuring that the sealing plate remains stable when opening or closing and preventing shaking. When the lifting plate slides to the top of the limiting groove, the magnet attracts the iron block, facilitating the opening of the pouring port for subsequent processing. This makes it easier to firmly fix the sealing plate in the closed position for pouring operations. After completing all the above installation and connection steps, concrete is poured into the filling cavity through the pouring port. The concrete will fuse with the steel frame to form a solid integral structure. As the concrete hardens, the connection between the high-span slab and the low-span slab will become stronger and more stable.

[0020] In this utility model, the basement high and low span bottom slab combination connector, through the reinforcement mechanism, can ensure the accurate position of the steel reinforcement frame, and can achieve firm fixation of the steel reinforcement frame, which is beneficial to enhance the tensile strength of the shear wall after later forming.

[0021] In this utility model, the basement high and low span floor slab combination connector can control the opening or closing of the pouring port through the pouring mechanism, which facilitates opening the pouring port for subsequent processing, thereby making it easier to firmly fix the sealing plate in the closed position for pouring operations.

[0022] This invention ensures accurate positioning of the reinforcing steel frame and enables its secure fixing. This enhances the tensile strength of the shear wall after it has been formed, preventing shear failure under earthquake or wind loads and avoiding wall cracking or even collapse. This, in turn, improves the structural durability and functionality. Attached Figure Description

[0023] Figure 1 A cross-sectional view of the slope body and concrete of a basement high-low span floor slab combination connector provided for an embodiment of this utility model;

[0024] Figure 2 This is a front view structural schematic diagram of a basement high-low span floor slab combination connector provided in an embodiment of the present utility model;

[0025] Figure 3 A schematic diagram of a steel frame structure for a combined connector of high and low span basement slabs provided in an embodiment of this utility model;

[0026] Figure 4 A schematic diagram of the pre-supported slab disassembled state of a basement high-low span floor slab combination connector provided in an embodiment of this utility model;

[0027] Figure 5 This is a cross-sectional view of a pre-supported slab structure for a basement high-low span floor slab combination connector provided in an embodiment of this utility model.

[0028] Figure label:

[0029] 1. Slope body; 2. High-span base slab; 3. Low-span base slab; 4. Concrete; 5. Precast slab; 6. Steel frame; 7. Positioning hole; 8. Filling cavity; 9. Fixing hoop; 10. Fixing bolt; 11. Insert rod; 12. Insertion hole; 13. Mounting bolt; 14. Screw hole; 15. Pouring port; 16. Slide groove; 17. Slide frame; 18. Sealing plate; 19. Lifting plate; 20. Limiting groove; 21. Magnet; 22. Iron block; 23. Groove. Detailed Implementation

[0030] 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.

[0031] Example 1

[0032] Please refer to Figures 1-5 A connector, comprising:

[0033] The slope body 1 has a high-span bottom plate 2 and a low-span bottom plate 3 on its top and one side, respectively. A pre-support plate 5 is provided between the high-span bottom plate 2 and the low-span bottom plate 3, and a filling cavity 8 is formed between the pre-support plate 5 and the slope body 1.

[0034] The reinforcement mechanism is installed on one side of the slope body 1 to strengthen the connection between the high-span base slab 2 and the low-span base slab 3. The reinforcement mechanism includes a steel frame 6, positioning holes 7, fixing hoops 9, and fixing bolts 10. The steel frame 6 is set inside the filling cavity 8. The steel frame 6 is composed of four main rods, multiple horizontal rods, and multiple diagonal rods to enhance the strength. The filling cavity 8 is filled with concrete 4, which is integrated with the steel frame 6. The steel frame 6 improves the overall structural strength and stability. The concrete 4 will integrate with the steel frame 6 to form a solid whole structure. As the concrete solidifies, the connection between the high-span base slab 2 and the low-span base slab 3 will become stronger and more stable.

[0035] Four positioning holes 7 are opened on the top side of the low-span base plate 3 for positioning and insertion of the steel reinforcement frame 6. Each fixing hoop 9 is fixedly sleeved on the outer wall of the main rod. The fixing bolt 10 passes through the bottom side of the fixing hoop 9. The bottom side of the high-span base plate 2 has fixing holes in pairs for threaded connection of the fixing bolt 10. The fixing hoop 9 fixedly sleeved on the outer wall is used to connect and fix the steel reinforcement frame 6 to the high-span base plate 2 through the fixing bolt 10, thereby realizing the firm fixation of the steel reinforcement frame 6, which is beneficial to enhancing the tensile strength of the shear wall after later forming.

[0036] The pouring mechanism includes a pouring port 15, a chute 16, a sliding frame 17, a sealing plate 18, a lifting plate 19, a limiting groove 20, a magnet 21, an iron block 22, and a groove 23. The pouring port 15 is located on one side of the pre-supported plate 5 to facilitate the pouring of concrete 4. The chute 16 is located inside the pre-supported plate 5. The sliding frame 17 is slidably connected to the inside of the chute 16. The sealing plate 18 is fixedly installed on the inside of the sliding frame 17 to facilitate the opening or closing of the pouring port 15. The pouring port 15 is located on one side of the pre-supported plate 5 to facilitate the pouring of concrete 4. The sliding frame 17 slides in the chute 16. The sealing plate 18 is fixedly installed on the inside of the sliding frame 17. The opening or closing of the pouring port 15 can be controlled by sliding the sliding frame 17.

[0037] The lifting plate 19 is fixedly mounted on one side of the sealing plate 18. A limiting groove 20 is formed on one side of the pre-support plate 5 to limit the sliding movement of the lifting plate 19. This limiting groove ensures that the sealing plate 18 remains stable when opening or closing, preventing shaking. A groove 23 is formed on one side of the lifting plate 19. A magnet 21 is located on the top side of the lifting plate 19, and an iron block 22 is located on the bottom side of one side of the limiting groove 20, attracting the magnet 21. When the lifting plate 19 slides to the top of the limiting groove 20, the magnet 21 and the iron block 22 attract each other, facilitating the opening of the pouring port 15 for subsequent processing. This allows the sealing plate 18 to be firmly fixed in the closed position for pouring operations.

[0038] The pouring mechanism is set on the pre-support plate 5 to facilitate the pouring of filling material into the filling cavity 8.

[0039] This application can be used in the field of basement construction, or in other fields applicable to this application.

[0040] Example 2

[0041] refer to Figures 1-4 An improvement based on Example 1: a combination connector for basement high and low span slabs, which is applied to the field of basement construction;

[0042] Two insertion rods 11 are fixedly installed on the bottom side of the pre-support plate 5, and two insertion holes 12 are opened on the top side of the low-span base plate 3 for positioning and insertion of the insertion rods 11. The insertion rods 11 on the bottom side of the pre-support plate 5 are inserted into the insertion holes 12 of the low-span base plate 3 to achieve preliminary positioning.

[0043] A mounting bolt 13 passes through one side of the pre-support plate 5, and a screw hole 14 is provided on one side of the high-span base plate 2 for threaded connection of the mounting bolt 13. The pre-support plate 5 is fixed to the high-span base plate 2 by using the mounting bolt 13, thereby realizing the installation and fixation of the pre-support plate 5, so as to achieve the effect of easy disassembly and improve convenience.

[0044] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A connecting component for a basement floor slab with varying heights, characterized in that: include: The slope body (1) has a high-span bottom plate (2) and a low-span bottom plate (3) respectively on its top and one side. A pre-support plate (5) is provided between the high-span bottom plate (2) and the low-span bottom plate (3). A filling cavity (8) is formed between the pre-support plate (5) and the slope body (1). The reinforcement mechanism is set on one side of the slope body (1) to strengthen the connection between the high-span bottom plate (2) and the low-span bottom plate (3); The pouring mechanism is set on the pre-support plate (5) to facilitate the pouring of filling material into the filling cavity (8).

2. The basement high-low span floor slab combination connector according to claim 1, characterized in that, The reinforcement mechanism includes a steel frame (6), positioning holes (7), fixing hoops (9) and fixing bolts (10). The steel frame (6) is set inside the filling cavity (8). The steel frame (6) is composed of four main rods, multiple horizontal rods and multiple diagonal rods to enhance the strength. The filling cavity (8) is filled with concrete (4) and integrated with the steel frame (6).

3. A basement high-low span floor slab combination connector according to claim 2, characterized in that, The four positioning holes (7) are all opened on the top side of the low span base plate (3) for positioning and insertion of the steel frame (6). Each fixing hoop (9) is fixedly sleeved on the outer wall of the main rod. The fixing bolt (10) passes through the bottom side of the fixing hoop (9). The bottom side of the high span base plate (2) is symmetrically provided with fixing holes for threaded connection of the fixing bolt (10).

4. A basement floor slab combination connector according to claim 1, characterized in that, The pouring mechanism includes a pouring port (15), a chute (16), a sliding frame (17), a sealing plate (18), a lifting plate (19), a limiting groove (20), a magnet (21), an iron block (22), and a groove (23). The pouring port (15) is opened on one side of the pre-support plate (5) to facilitate pouring concrete (4). The chute (16) is opened inside the pre-support plate (5). The sliding frame (17) is slidably connected to the inside of the chute (16). The sealing plate (18) is fixedly set on the inside of the sliding frame (17) to facilitate opening or closing the pouring port (15).

5. A basement high-low span floor slab combination connector according to claim 4, characterized in that, The lifting plate (19) is fixedly installed on one side of the sealing plate (18). The limiting groove (20) is opened on one side of the pre-support plate (5) for the lifting plate (19) to limit the sliding. The groove (23) is opened on one side of the lifting plate (19). The magnet (21) is set on the top side of the lifting plate (19). The iron block (22) is set on the bottom side of one side of the limiting groove (20) and is attracted to the magnet (21).

6. A basement high-low span floor slab combination connector according to claim 1, characterized in that, Two insert rods (11) are fixedly installed on the bottom side of the pre-support plate (5), and two insertion holes (12) are opened on the top side of the low-span base plate (3) for the insertion rods (11) to be positioned and inserted.

7. A basement high-low span floor slab combination connector according to claim 6, characterized in that, One side of the pre-support plate (5) is provided with a mounting bolt (13), and one side of the high-span base plate (2) is provided with a screw hole (14) for the mounting bolt (13) to be threaded.

Citation Information

Patent Citations

  • High-low span connecting structure of basement bottom plate

    CN219157761U