Screw connection ribbed hollow floor

Abstract

The utility model discloses a screw rod connects the ribbed hollow floor, including from below to above lower panel, intermediate layer and upper panel, the intermediate layer includes a plurality of longitudinal rib and transverse rib that mutually perpendicular cross arrangement, the space that constitutes between longitudinal rib and transverse rib is provided with hollow block, be provided with a plurality of hollow recesses on the hollow block, the direction of hollow recess is downward, the air heat -proofing and heat -insulating sound -proof layer that constitutes between hollow recess and lower panel. The hollow cut -out of the utility model does not fill any filling material, reduces the step in the processing process, under the condition of reducing material and faster production rate, make a floor cost compared with the floor of prior art need to fill reduced 10%~30% or so, thus greatly save the cost, be favorable to reduce the price of whole fabricated building.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a screw-connected ribbed hollow floor slab. Background Technology

[0002] With the development of modern industrial technology, prefabricated buildings have gradually replaced conventional building systems due to their advantages such as faster construction speed, less susceptibility to weather conditions, and labor savings. The floor slabs used in prefabricated buildings are generally solid concrete slabs, which are relatively heavy and have high manufacturing and transportation costs.

[0003] Therefore, our company has applied for patent number 202420629296.2, entitled "A Screw-Connected Ribbed Reinforced Concrete Sandwich Slab," specifically comprising a parallel upper panel and a lower panel. Several straw fiber concrete molds are disposed between the upper and lower panels. Longitudinal ribs are provided between the left and right sides of adjacent straw fiber concrete molds, and transverse ribs are provided between the upper and lower sides of adjacent straw fiber concrete molds. Several placement grooves are provided on the straw fiber concrete molds, and these grooves are filled with polystyrene foam blocks, with the grooves facing upwards. This utility model's ribbed sandwich slab is lighter due to the use of straw fiber concrete molds, and the use of straw reduces costs. It also meets strength performance standards, is easy to transport, and the foam blocks filling the straw fiber concrete molds provide better insulation than hollow straw fiber concrete molds, while being cheaper and achieving the same effect as using only foam blocks.

[0004] Although the aforementioned patent solves the problems of heavy, difficult-to-transport, and expensive-to-manufacture floor slabs caused by the use of solid concrete slabs in existing technologies, it has been found in actual use that the floor slabs of the aforementioned patent are mainly used on roofs and have good heat insulation and heat preservation effects. However, when used in interior floor slabs, their heat insulation effect is not as good as that on the roof. If the floor slabs of the aforementioned patent are used throughout the house, the overall price of the prefabricated house will be slightly higher. Utility Model Content

[0005] In view of this, the present invention proposes a screw-connected ribbed hollow floor slab.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A screw - connected ribbed hollow floor slab, comprising a lower panel, an intermediate layer and an upper panel from bottom to top. The intermediate layer includes a number of longitudinal rib beams and transverse rib beams arranged vertically and cross -wise. A hollow block is arranged in the space formed between the longitudinal rib beams and the transverse rib beams. A number of hollow grooves are arranged on the hollow block, and the hollow grooves face downward. An air thermal insulation and sound insulation layer is formed between the hollow grooves and the lower panel.

[0008] As a further improvement of the above - mentioned technical solution:

[0009] As an optimized solution of the above - mentioned technical solution, the lower panel is a fiber - reinforced cement thin slab.

[0010] As an optimized solution of the above - mentioned technical solution, the upper panel is a fiber - reinforced cement thin slab or a post - poured slab.

[0011] As an optimized solution of the above - mentioned technical solution, the hollow block adopts a straw fiber concrete hollow block.

[0012] As an optimized solution of the above - mentioned technical solution, the hollow grooves are distributed in a "field" shape, a "day" shape or a "square" shape.

[0013] As an optimized solution of the above - mentioned technical solution, a number of bolt - connection boxes are arranged on the side edge of the upper panel.

[0014] Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0015] The hollow blocks adopted in the present utility model do not fill any filling materials, reducing the steps in the processing process. Under the condition of reducing materials and having a faster production rate, the cost of a floor slab is reduced by about 10% - 30% compared with the floor slab that needs to be filled in the existing technology. Therefore, the cost is greatly saved, which is beneficial to reducing the price of the entire prefabricated building.

[0016] In the present utility model, the hollow grooves are arranged downward, so that the upper end thereof is the upper end face of the hollow block without voids, thus avoiding the stress concentration on the upper panel, which may cause the deformation and concave of the upper panel. Secondly, the air thermal insulation and sound insulation layer is formed between the downward - facing hollow grooves and the lower panel, increasing the thermal insulation, sound insulation and sound absorption effects of the floor slab of the present utility model.

[0017] The straw fiber concrete hollow block will not float or move left and right during the pouring process. Compared with pure foam blocks, it improves the uniformity after pouring, increases the quality of the prefabricated floor slab. Secondly, straw is a renewable resource, realizing waste utilization, saving resources and reducing environmental pollution. Description of the Drawings

[0018] Figure 1Schematic diagram of the overall three-dimensional structure of the present utility model;

[0019] Figure 2 Schematic diagram of the transverse cross-sectional structure of the present utility model;

[0020] Figure 3 Schematic diagram of the longitudinal cross-sectional structure of the present utility model;

[0021] Figure 4 Schematic diagram of the three-dimensional structure in which the hollow grooves on the hollow block of the present utility model are distributed in a "field" shape;

[0022] Figure 5 Schematic diagram of the three-dimensional structure in which the hollow grooves on the hollow block of the present utility model are distributed in a "day" shape;

[0023] Figure 6 Schematic diagram of the three-dimensional structure in which the hollow grooves on the hollow block of the present utility model are distributed in a "square" shape.

[0024] In the figure: 1, bottom panel; 2, top panel; 3, longitudinal rib beam; 4, transverse rib beam; 5, hollow block; 6, hollow groove; 7, bolt connection box. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] In the description of the present utility model, unless otherwise specified, the meaning of "plural" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] As Figure 1 、 Figure 2 and Figure 3 shown, the structure of this embodiment includes a bottom panel 1, a middle panel and a top panel 2 from bottom to top.

[0029] The middle layer includes a plurality of longitudinal rib beams 3 and transverse rib beams 4 arranged vertically and crosswise. There are hollow blocks 5 in the space formed between the longitudinal rib beams 3 and the transverse rib beams 4. There are hollow grooves 6 on the hollow blocks 5, and the orientation of the hollow grooves 6 is downward. Regarding the shape of the hollow grooves 6, the size of the hollow blocks 5 is also considered.

[0030] As shown in the appendix Figure 4 shown, when the volume of the hollow block 5 is relatively large, it can be considered to be arranged in a "field" shape.

[0031] As shown in the appendix Figure 5 shown, if the hollow block 5 is of medium size, it can be considered to be arranged in a "day" shape.

[0032] As shown in the appendix Figure 6 shown, if the hollow block 5 is small, it can be considered to be arranged in a "square" shape, that is, there is only one hollow groove 6 on one hollow block 5.

[0033] The main purpose of designing the hollow groove 6 downward is to form an air insulation, heat insulation and sound insulation layer with the bottom panel 1. Although the heat insulation effect is slightly worse than that with fillers, it is completely sufficient for indoor use or positions with low heat insulation requirements. Moreover, its cost is lower and one processing step is less, and more can be processed in the same time.

[0034] At the same time, the hollow block 5 is made of straw fiber concrete hollow block 5, which has a lower cost and meets the strength standard. The bottom panel 1 is made of fiber-reinforced cement thin board.

[0035] At the same time, in order to facilitate the connection between the floor slabs, a number of bolt connection boxes 7 are provided on the side of the top panel 2, and the number and distribution positions are adjusted during the processing according to needs.

[0036] The processing process of the present utility model:

[0037] 1. Place the bottom panel 1 (fiber-reinforced cement thin board) on the processing platform.

[0038] 2. Invert and place the hollow blocks 5 at equal intervals above the bottom panel 1 (select the hollow grooves 6 with appropriate distribution according to needs).

[0039] 3. Build side molds around the bottom panel 1.

[0040] 4. Concrete is poured to form longitudinal ribs 3 and transverse ribs 4. Further pouring forms the upper panel 2. The upper panel 2 is a post-cast slab, which has the advantages of strong bonding and high impact resistance.

[0041] Alternatively, after the longitudinal ribs 3 and transverse ribs 4 have been poured, the prepared upper panel 2 (fiber-reinforced cement sheet) can be laid on top, and the concrete can solidify and connect them together. The advantage of this method is that it reduces the weight of the concrete and saves costs.

[0042] 5. After the concrete has solidified, remove the side formwork to complete the processing of the hollow core slab.

[0043] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A screw-connected ribbed hollow floor slab, comprising a lower panel (1), an intermediate layer, and an upper panel (2) from bottom to top, characterized in that: The middle layer includes a number of longitudinal rib beams (3) and transverse rib beams (4) arranged perpendicular to each other and intersecting. A hollow block (5) is arranged in the space formed between the longitudinal rib beam (3) and the transverse rib beam (4). A number of hollow grooves (6) are arranged on the hollow block (5). The orientation of the hollow grooves (6) is downward. An air thermal insulation, sound insulation layer is formed between the hollow grooves (6) and the lower panel (1).

2. The screw-connected ribbed hollow floor slab according to claim 1, characterized in that: The lower panel (1) is a fiber-reinforced cement thin board.

3. The screw-connected ribbed hollow floor slab according to claim 1, characterized in that: The upper panel (2) is a fiber-reinforced cement thin board or a post-cast board.

4. The screw-connected ribbed hollow floor slab according to claim 1, characterized in that: The hollow block (5) adopts a straw fiber concrete hollow block (5).

5. The screw-connected ribbed hollow floor slab according to claim 1, characterized in that: The hollow grooves (6) are distributed in a "field" shape, a "day" shape or a "square" shape.

6. The screw-connected ribbed hollow floor slab according to claim 1, characterized in that: A number of bolt connection boxes (7) are arranged on the side edge of the upper panel (2).

Images