Precast concrete stair components with built-in load-bearing reinforcing bars

Abstract

This utility model provides a precast concrete staircase component with built-in load-bearing reinforcing ribs, belonging to the field of prefabricated building technology. It addresses the problem of easy damage to the edges and corners, and steps, of existing precast concrete staircase components during transportation. The component includes a staircase main body, positioning holes, insertion slots, transportation auxiliary components, and tile installation auxiliary components. Four positioning holes are distributed on the front and rear sides of the staircase main body. Four insertion slots are distributed inside the top and bottom steps of the staircase main body. The transportation auxiliary components are located on the front, rear, and top sides of the staircase main body. The tile installation auxiliary components are located inside the staircase main body. This utility model achieves protection of the edges and corners, as well as stacking and positioning of the staircase main body, ensuring the integrity of the component during transportation. Simultaneously, the tile installation auxiliary components facilitate the high-precision and rapid installation of tiles or marble slabs on the surface of the steps of the staircase main body.

Description

Technical Field

[0001] This utility model belongs to the field of prefabricated building technology, and more specifically, it relates to a prefabricated concrete staircase component with built-in load-bearing reinforcing bars. Background Technology

[0002] Precast concrete stair components are concrete stair parts that are precast in a factory and then transported to the construction site for installation. They are one of the common precast components in prefabricated buildings. They can significantly shorten the construction cycle, reduce on-site wet work (such as pouring and curing), save materials, reduce on-site dust and waste, and are more environmentally friendly. Existing precast concrete stair components generally consist of an integrated stair slab with internal reinforcing mesh, platform beams, and embedded parts for installing railings and other structures.

[0003] Existing application number: CN202422342775.9, a precast concrete staircase component, belonging to the field of precast concrete components. This utility model solves the technical problems of existing precast concrete staircases, such as instability due to the structure of the mounting holes themselves, susceptibility to damage during assembly, and poor subsequent seismic resistance. Therefore, it proposes a precast concrete staircase component. Vertical bolts are pre-embedded in the lugs of both the upper and lower stair beams. The staircase body is installed by engaging these bolts through the upper and lower assembly holes respectively. The diameter of the lower hole is smaller than that of the upper hole, and a washer is installed on the top surface of the lower hole. Nuts are connected to bolts and tightened using the washer. Reinforcing ribs are arranged horizontally on the outer sides of the upper and lower assembly holes, arranged in two layers. Vertical stirrups are fitted on the outer sides of the reinforcing ribs. This design reduces the likelihood of damage during assembly and improves the overall seismic resistance. This utility model is used for precast concrete staircases.

[0004] Based on the above, precast concrete stair components need to be hoisted and stacked during transportation. However, the corners and edges of the components lack effective protective structures, making these parts susceptible to damage from bumps and collisions. When multiple components are stacked for transportation, they are also prone to damage due to mutual collisions, affecting the integrity of the components. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a precast concrete staircase component with built-in load-bearing reinforcing ribs. This solves the problem that existing precast concrete staircase components require hoisting and stacking operations during transportation, and that the corners and edges of the components lack effective protective structures, making these parts susceptible to damage from bumps and collisions. Furthermore, when multiple components are stacked and transported, they are also prone to damage due to mutual collisions, affecting the integrity of the components.

[0006] The purpose and function of this utility model of a precast concrete staircase component with built-in load-bearing reinforcing bars are achieved by the following specific technical means:

[0007] A precast concrete staircase component with built-in load-bearing reinforcing ribs includes a staircase component body, reinforcing steel cages, reinforcing steel mesh, positioning holes, insertion slots, transportation auxiliary components, and tile installation auxiliary components. Multiple reinforcing steel cages are provided, and these cages are distributed and fixedly connected inside the steps of the staircase component body. The reinforcing steel mesh is fixedly connected inside the base plate of the staircase component body. Four positioning holes are provided, distributed on the front and rear sides of the staircase component body. Four insertion slots are provided, distributed inside the top and bottom steps of the staircase component body. The transportation auxiliary components are located on the front, rear, and top sides of the staircase component body. The tile installation auxiliary components are located inside the staircase component body.

[0008] Furthermore, the transport auxiliary component includes: rubber plugs and corner protection rubber sheets; four rubber plugs are provided, and the four rubber plugs are respectively inserted into the four positioning holes; four corner protection rubber sheets are provided, and the four corner protection rubber sheets are respectively fixedly connected to the outside of the four rubber plugs.

[0009] Furthermore, the transportation auxiliary component also includes: a transportation positioning column; the bottom and top of the transportation positioning column are both frustum structures, and four transportation positioning columns are provided, with the four transportation positioning columns respectively inserted into four insertion slots.

[0010] Furthermore, the transport auxiliary component also includes: edge-surrounding rubber parts; multiple edge-surrounding rubber parts are provided, and the multiple edge-surrounding rubber parts are distributed and inserted into the outside of multiple steps of the main body of the staircase component.

[0011] Furthermore, the tile installation auxiliary component includes: positioning slots and embedded parts; multiple positioning slots are provided, and the multiple positioning slots are distributed on the right side of multiple steps of the main body of the staircase component; multiple embedded parts are provided, and the multiple embedded parts are respectively inserted into the multiple positioning slots.

[0012] Furthermore, the tile installation auxiliary component also includes: a positioning block and an auxiliary positioning frame; the positioning block has an "L" shaped structure, and the bottom of the positioning block is inserted into the positioning slot; the auxiliary positioning frame is fixedly connected to the upper front end of the positioning block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] First, protective rubber sheets are used to protect the corners of the base plate, and the edges of the rubber parts are used to protect the edges of the steps. Transport positioning posts assist in the stacking and positioning of the two main stair components, which effectively reduces bumps and collisions during transportation, ensures the integrity of the main stair components during transportation, and the protective parts can be reused, reducing manufacturing costs.

[0015] Secondly, by setting up a positioning base with a reserved auxiliary frame for the embedded parts, the positioning block and auxiliary frame help to calibrate the installation position of the tile or marble slab, ensuring that the tile or marble slab is installed flat and not crooked, thus improving the installation quality and aesthetics.

[0016] This utility model uses transportation auxiliary components to protect corners and steps, and to stack and position the main body of stair components, ensuring the integrity of component transportation. At the same time, it uses the embedded parts and auxiliary frames of the tile installation auxiliary components to calibrate the installation position of tiles or marble slabs, and assists in the installation of tiles or marble slabs. This promotes the refinement and efficiency of the entire process of component production, transportation and construction in prefabricated buildings, and helps prefabricated buildings develop in a more reliable and higher quality direction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the reinforced steel cage structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the main structure of the staircase component of this utility model.

[0020] Figure 4 This is a schematic diagram of the corner protection rubber sheet structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the positioning slot structure of this utility model.

[0022] Figure 6 This is a schematic diagram of the auxiliary positioning frame structure of this utility model.

[0023] Figure 7 This is a schematic diagram of the transport state structure of the main body of the staircase component of this utility model.

[0024] Figure 8 This is the utility model Figure 3 A detailed, enlarged structural diagram of point A in the middle.

[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0026] 1. Main structure of the staircase; 2. Reinforcing steel cage; 3. Reinforcing steel mesh; 4. Positioning hole; 5. Rubber plug; 501. Edge protection rubber sheet; 6. Insert groove; 7. Transport positioning post; 8. Edge surrounding rubber part; 9. Positioning slot; 10. Embedded part; 11. Positioning block; 1101. Auxiliary positioning frame. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model. Example

[0028] As attached Figure 1 To be continued Figure 8 As shown:

[0029] This utility model provides a precast concrete staircase component with built-in load-bearing reinforcing bars, including a staircase component body 1, reinforcing steel cages 2, reinforcing steel mesh 3, positioning holes 4, insertion slots 6, and transportation auxiliary components; multiple reinforcing steel cages 2 are provided, and the multiple reinforcing steel cages 2 are distributed and fixedly connected inside the steps of the staircase component body 1; the reinforcing steel mesh 3 is fixedly connected inside the bottom plate of the staircase component body 1; four positioning holes 4 are provided, and the four positioning holes 4 are distributed on the front and rear sides of the staircase component body 1; four insertion slots 6 are provided, and the four insertion slots 6 are distributed inside the top and bottom steps of the staircase component body 1; the transportation auxiliary components are provided on the front, rear, and top sides of the staircase component body 1.

[0030] The transportation auxiliary components include: rubber plugs 5 and corner protection rubber sheets 501; four rubber plugs 5 are provided, and the four rubber plugs 5 are respectively inserted into the four positioning holes 4; four corner protection rubber sheets 501 are provided, and the four corner protection rubber sheets 501 are respectively fixedly connected to the outside of the four rubber plugs 5.

[0031] The transportation auxiliary components also include: transportation positioning posts 7; the bottom and top of the transportation positioning posts 7 are both frustum structures, and four transportation positioning posts 7 are provided, with the four transportation positioning posts 7 respectively inserted into the four insertion slots 6.

[0032] The transportation auxiliary components also include: edge-enclosing rubber parts 8; multiple edge-enclosing rubber parts 8 are provided, and the multiple edge-enclosing rubber parts 8 are distributed and inserted into the outside of multiple steps of the main body of the stair component 1.

[0033] The specific usage and function of this embodiment are as follows: During use, the reinforcing steel cage 2 and reinforcing steel mesh 3 greatly enhance the tensile / shear resistance of the steps and base plate of the main stair component 1, thereby increasing the load-bearing capacity of the main stair component 1. During transportation, firstly, four rubber plugs 5 are inserted into the four positioning holes 4 respectively. Then, after the base plate of the main stair component 1 contacts the transport vehicle, the four corner protection rubber sheets 501 prevent the four corners of the base plate of the main stair component 1 from being bumped. Next, the edge-enclosing rubber parts 8 are covered at the edge of the steps of the main stair component 1 to protect the edge of the steps. Finally, the transport positioning post 7 is inserted into the insertion slot 6, completing the pre-transport preparation work for the bottom main stair component 1. Then, the second main stair component 1 is hoisted onto the vehicle... Before the vehicle arrives, first install the corner protective rubber sheet 501 and the edge surrounding rubber part 8 of the second stair component body 1. Then, flip the second stair component body 1 so that the bottom plate of the second stair component body 1 faces upward. Then, align the insertion slot 6 of the second stair component body 1 with the top of the transport positioning post 7 of the first stair component body 1 and insert it. This temporarily assembles the second stair component body 1 with the first stair component body 1. During transportation, this can greatly reduce the impact on the steps of the stair component body 1 and ensure that the stair component body 1 can be transported intact to the installation site. After transportation to the site, the corner protective rubber sheet 501, the edge surrounding rubber part 8, and the transport positioning post 7 can be removed from the stair component body 1 and reused, reducing manufacturing costs. Example

[0034] Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 8 As shown, it also includes a tile installation auxiliary component, which is installed inside the main body 1 of the stair component.

[0035] The tile installation auxiliary components include: positioning slots 9 and embedded parts 10; multiple positioning slots 9 are opened, and the multiple positioning slots 9 are distributed on the right side of multiple steps of the main body of the stair component 1; multiple embedded parts 10 are provided, and the multiple embedded parts 10 are respectively inserted into the multiple positioning slots 9.

[0036] The tile installation auxiliary components also include: a positioning block 11 and an auxiliary positioning frame 1101; the positioning block 11 has an "L" shaped structure, and the bottom of the positioning block 11 is inserted into the positioning slot 9; the auxiliary positioning frame 1101 is fixedly connected to the front end of the positioning block 11.

[0037] The specific usage and function of this embodiment are as follows: When the main body 1 of the stair component is poured, the embedded part 10 is pre-embedded in the step of the main body 1 of the stair component. The outer surface of the embedded part 10 is sprayed with a release agent to facilitate subsequent demolding. At the construction site, after the main body 1 of the stair component is installed, when it is necessary to install marble slabs or tiles on the surface of the step of the main body 1 of the stair component, the embedded part 10 is pulled out from the positioning slot 9, and then the auxiliary positioning frame 1101 is taken out. The positioning block 11 is inserted into the positioning slot 9. At this time, the inner surface of the auxiliary positioning frame 1101 coincides with the front and rear surfaces of the step of the main body 1 of the stair component. When installing marble slabs or tiles, the auxiliary positioning frame 1101 can prevent the marble slabs or tiles from being placed crookedly, ensuring the installation quality and aesthetics of the marble slabs or tiles.

[0038] The following points should be noted in this article:

[0039] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0040] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0041] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment 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 embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A precast concrete stair component with built-in load-bearing reinforcement, comprising a stair component body (1), a reinforcing cage (2), a reinforcing mesh (3), a positioning hole (4), a plug-in slot (6), a transportation auxiliary assembly and a tile installation auxiliary assembly; characterized in that: Multiple reinforcing steel cages (2) are provided, and the multiple reinforcing steel cages (2) are dispersedly and fixedly connected inside the steps of the main body of the stair component (1); the reinforcing steel mesh (3) is fixedly connected inside the bottom plate of the main body of the stair component (1); four positioning holes (4) are provided, and the four positioning holes (4) are dispersedly provided on the front and rear sides of the main body of the stair component (1); four insertion slots (6) are provided, and the four insertion slots (6) are dispersedly provided inside the top and bottom steps of the main body of the stair component (1); the transportation auxiliary components are provided on the front and rear sides and above of the main body of the stair component (1); the tile installation auxiliary components are provided inside the main body of the stair component (1); The transport auxiliary component includes: rubber plugs (5) and corner protection rubber sheets (501); four rubber plugs (5) are provided, and the four rubber plugs (5) are respectively inserted into the four positioning holes (4); four corner protection rubber sheets (501) are provided, and the four corner protection rubber sheets (501) are respectively fixedly connected to the outside of the four rubber plugs (5); The transport auxiliary components also include: transport positioning columns (7); the bottom and top of the transport positioning columns (7) are both frustum structures, and four transport positioning columns (7) are provided, with the four transport positioning columns (7) respectively inserted into the four insertion slots (6); The transport auxiliary component also includes: edge-enclosing rubber parts (8); multiple edge-enclosing rubber parts (8) are provided, and the multiple edge-enclosing rubber parts (8) are distributed and inserted into the outside of multiple steps of the stair component body (1).

2. A precast concrete stairway unit incorporating load bearing reinforcement as claimed in claim 1 wherein: The tile installation auxiliary component includes: positioning slots (9) and embedded parts (10); multiple positioning slots (9) are provided, and the multiple positioning slots (9) are distributed on the right side of multiple steps of the main body of the stair component (1); multiple embedded parts (10) are provided, and the multiple embedded parts (10) are respectively inserted into the multiple positioning slots (9).

3. A precast concrete stairway unit incorporating load bearing reinforcement as claimed in claim 2 wherein: The tile installation auxiliary component also includes: a positioning block (11) and an auxiliary positioning frame (1101); the positioning block (11) has an "L" shaped structure, and the bottom of the positioning block (11) is inserted into the positioning slot (9); the auxiliary positioning frame (1101) is fixedly connected above the front end of the positioning block (11).

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