Prefabricated concrete composite floor slab

Abstract

The utility model relates to the technical field of floor slabs, in particular to a prefabricated concrete composite floor slab which comprises a floor slab structure and reinforcing structures, and the reinforcing structures are installed on the two sides of the top of the floor slab structure. The floor slab structure is composed of a floor slab body and reinforcing steel bars, the reinforcing steel bars are inserted into the floor slab body, fixing grooves are formed in the two sides of the floor slab body, a concrete slab layer is installed at the bottom of the interior of the floor slab body, and a steel skeleton layer is installed at the top of the concrete slab layer; a gypsum board layer is installed at the top of the steel skeleton layer, a waterproof material layer is installed at the top of the gypsum board layer, and the device is simple in structure, convenient to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of floor slabs, in particular to a precast concrete composite floor slab. Background Art

[0002] Precast panels are floor slabs used in early 20th-century construction, essentially modular panels or slabs. They are called precast panels because they are prefabricated concrete blocks manufactured and processed at a prefabrication site and then transported directly to the construction site for installation. To create a precast panel, a hollow mold is first constructed using wooden planks. Rebar is placed in the hollow core of the mold, and then the hollow core is filled with cement. Once dry, the planks are removed, leaving the precast panel. Precast panels come in both solid and hollow cores. Simply put, the purpose of hollow precast panels is to eliminate the need for concrete in the hollow core, as the load is not applied to the hollow core. This allows for the hollow core to be left hollow, reducing weight and costs. However, the use of precast hollow panels is no longer recommended, as cast-in-place structures are now common in most buildings. The advantage is that the resulting buildings are more coherent and sturdy.

[0003] After searching, Chinese patent announcement number: CN220848252U discloses a precast concrete composite floor, wherein a short convex plate is provided on the top of the left side of the floor body, and a long convex plate is provided on the bottom of the right side of the floor body, a groove is formed between the short convex plate and the floor body, a T-shaped connecting plate is placed inside the groove, and the two ends of the T-shaped connecting plate are respectively located at the top of the floor body, and fixing bolts are threadedly connected between the two ends of the T-shaped connecting plate and the floor body. The design of the long convex plate and the short convex plate makes it convenient for workers to place the floor slab after the crane lowers it. After splicing, there is a groove between the short convex plate and the floor slab body, which makes it convenient to embed the bottom of the T-shaped connecting plate. After embedding, the two ends of the T-shaped connecting plate are respectively located on the top of the two adjacent floor slabs, and then the fixing bolts are passed through the T-shaped connecting plate and the embedded threaded sleeves on the top of the floor slab body to be threaded together, so as to fix the two floor slab bodies together. Although this application can solve the problem that the crane puts the floor slab on the ground from top to bottom and uses the side plug-in method, it also requires workers to align the holes and push the protrusions of the floor slab into the grooves, which consumes too much physical energy of the workers and reduces work efficiency, the structure of the floor slab is relatively fragile and its function is relatively single, so it is easy to break. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a precast concrete composite floor slab, which aims to solve the problem that although the existing technology can solve the problem that the crane lowers the floor slab from the top to the ground and uses the side plug-in method, it also requires workers to align the holes and push the protrusions of the floor slab into the grooves, which causes excessive physical exertion of the workers and reduces work efficiency, the structure of the floor slab is relatively fragile, the function is relatively single, and it is prone to breakage.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A precast concrete composite floor slab comprises a floor slab structure and a reinforcement structure, wherein the reinforcement structures are installed on both sides of the top of the floor slab structure;

[0007] The floor structure consists of a floor body and reinforcing steel bars. Several reinforcing steel bars are inserted into the interior of the floor body. Fixing grooves are provided on both sides of the floor body. A concrete slab layer is installed at the bottom of the interior of the floor body, a steel frame layer is installed on the top of the concrete slab layer, a gypsum board layer is installed on the top of the steel frame layer, and a waterproof material layer is installed on the top of the gypsum board layer.

[0008] Preferably, the reinforcement structure consists of a fixing frame and reinforcement screws, a plurality of reinforcement screws are installed on the top of the fixing frame, a mounting groove is provided at the bottom of the fixing frame, and limiting protrusions are installed on both sides of the fixing frame inside the mounting groove.

[0009] Preferably, the concrete slab layer, steel skeleton layer, gypsum board layer and waterproof material layer are integrally formed, and the reinforcing steel bars run through both sides of the floor slab body.

[0010] Preferably, a plurality of grooves are provided on the top of the floor slab body.

[0011] Preferably, the reinforcing screw spirally passes through the top of the fixing frame, and a decompression cushion is provided on the top of the reinforcing screw.

[0012] Preferably, the fixing frame is inserted into the top of the floor slab body through the installation groove, and the fixing frame is reinforced by reinforcing screws.

[0013] Preferably, the limiting protrusions are inserted into the fixing grooves at both ends of the floor slab body.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model provides a floor slab body, and the steel skeleton layer inside the floor slab body can greatly improve the firmness of the floor slab, thereby avoiding short circuit of the floor slab body. The gypsum board layer can reduce costs and effectively isolate noise between floors. The gypsum board layer has good fireproof effect and is light in weight. The waterproof material layer can protect the gypsum board layer and avoid the gypsum board from becoming fragile due to moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is an expanded view of the internal structure of the floor slab body of the present invention;

[0018] Figure 3 This is a schematic diagram of the overall structure of the fixing frame of the present utility model.

[0019] In the figure: 1. Floor structure; 11. Floor body; 111. Groove; 112. Concrete slab layer; 113. Steel skeleton layer; 114. Gypsum board layer; 115. Waterproof material layer; 12. Fixing groove; 13. Reinforcement steel bar; 2. Reinforcement structure; 21. Fixing frame; 211. Installation groove; 212. Limiting protrusion; 22. Reinforcement screw; 221. Pressure relief pad. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Example:

[0022] See also Figure 1-Figure 3 The present embodiment provides a precast concrete composite floor slab, comprising a floor slab structure 1 and a reinforcement structure 2. The reinforcement structure 2 is installed on both sides of the top of the floor slab structure 1; the floor slab structure 1 is composed of a floor slab body 11 and a reinforcement steel bar 13. A plurality of reinforcement steel bars 13 are inserted into the interior of the floor slab body 11. Fixing grooves 12 are provided on both sides of the floor slab body 11. A concrete slab layer 112 is installed at the bottom of the interior of the floor slab body 11. A steel skeleton layer 113 is installed on the top of the concrete slab layer 112. The steel skeleton layer 113 is provided on the top of the concrete slab layer 112. A gypsum board layer 114 is installed on the top of 13, and a waterproof material layer 115 is installed on the top of the gypsum board layer 114. The steel skeleton layer 113 inside the floor slab body 11 can greatly improve the firmness of the floor slab and avoid short circuit of the floor slab body 11. The gypsum board layer 114 can reduce costs and effectively isolate noise between floors. The gypsum board layer 114 has good fireproof effect and is light in weight. The waterproof material layer 115 can protect the gypsum board layer 114 and prevent the gypsum board from becoming fragile due to moisture.

[0023] In this embodiment, if Figure 1 and Figure 3As shown, the reinforcement structure 2 consists of a fixing frame 21 and reinforcement screws 22. Several reinforcement screws 22 are installed on the top of the fixing frame 21, and a mounting groove 211 is provided at the bottom of the fixing frame 21. Limiting protrusions 212 are installed on both sides of the fixing frame 21 located inside the mounting groove 211. The limiting protrusions 212 can firmly fix the fixing frame 21 on the floor body 11. When the floor needs to be hoisted to a higher place, the fixing frame 21 can effectively protect the floor body 11.

[0024] In this embodiment, if Figure 1 and Figure 2 As shown, the concrete slab layer 112, the steel skeleton layer 113, the gypsum board layer 114 and the waterproof material layer 115 are integrally formed, and the reinforcing steel bars 13 run through both sides of the floor slab body 11. The reinforcing steel bars 13 can greatly improve the firmness of the floor slab body 11.

[0025] In this embodiment, if Figure 1 As shown, a plurality of grooves 111 are provided on the top of the floor slab body 11. The grooves 111 can facilitate ventilation and improve wind resistance after the floor slab is installed.

[0026] In this embodiment, if Figure 1 and Figure 3 As shown, the reinforcing screw 22 spirally passes through the top of the fixing frame 21, and a decompression pad 221 is provided on the top of the reinforcing screw 22. The reinforcing screw 22 can fix the fixing frame 21 more firmly on the floor body 11, and the decompression pad 221 can effectively reduce the pressure on the floor body 11.

[0027] In this embodiment, if Figure 1 and Figure 3 As shown, the fixing frame 21 is inserted into the top of the floor slab body 11 through the installation groove 211, and the fixing frame 21 is reinforced by the reinforcing screws 22. The floor slab body 11 can be hoisted and transported to a higher place through the fixing frame 21.

[0028] In this embodiment, if Figure 1 and Figure 3 As shown, the limiting protrusions 212 are inserted into the fixing grooves 12 at both ends of the floor slab body 11 , which can fix the floor slab body 11 more firmly.

[0029] Working principle: The fixing frame 21 is firmly fixed on the floor slab body 11 through the limiting protrusion 212. When the floor slab needs to be hoisted to a higher place, the fixing frame 21 can effectively protect the floor slab body 11, and the fixing frame 21 is reinforced by the reinforcing screws 22. The pressure relief cushion 221 can effectively reduce the pressure on the floor slab body 11. The steel skeleton layer 113 inside the floor slab body 11 can greatly improve the firmness of the floor slab and avoid short circuit of the floor slab body 11. The gypsum board layer 114 can reduce costs and effectively isolate noise between floors. The gypsum board layer 114 has good fireproof effect and is light in weight. The waterproof material layer 115 can protect the gypsum board layer 114 to prevent the gypsum board from becoming fragile due to moisture. The device has a simple structure, is easy to use and has high practicality.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A precast concrete composite floor slab comprising a floor slab structure (1) and a reinforcement structure (2), characterized in that: Reinforcement structures (2) are installed on both sides of the top of the floor structure (1); The floor structure (1) consists of a floor body (11) and reinforcing steel bars (13); a plurality of reinforcing steel bars (13) are inserted into the interior of the floor body (11); fixing grooves (12) are provided on both sides of the floor body (11); a concrete slab layer (112) is installed at the bottom of the interior of the floor body (11); a steel skeleton layer (113) is installed on the top of the concrete slab layer (112); a gypsum board layer (114) is installed on the top of the steel skeleton layer (113); and a waterproof material layer (115) is installed on the top of the gypsum board layer (114).

2. The precast concrete composite floor slab according to claim 1, characterized in that: The reinforcement structure (2) is composed of a fixing frame (21) and reinforcement screws (22); a plurality of reinforcement screws (22) are installed on the top of the fixing frame (21); a mounting groove (211) is provided on the bottom of the fixing frame (21); and limiting protrusions (212) are installed on both sides of the fixing frame (21) located inside the mounting groove (211).

3. The precast concrete composite floor slab according to claim 1, characterized in that: The concrete slab layer (112), steel skeleton layer (113), gypsum board layer (114) and waterproof material layer (115) are integrally formed, and the reinforcing steel bars (13) run through both sides of the floor slab body (11).

4. The precast concrete composite floor slab according to claim 1, characterized in that: A plurality of grooves (111) are provided on the top of the floor slab body (11).

5. The precast concrete composite floor slab according to claim 2, characterized in that: The reinforcing screw (22) is spirally passed through the top of the fixing frame (21), and a pressure relief cushion (221) is provided on the top of the reinforcing screw (22).

6. The precast concrete composite floor slab according to claim 2, characterized in that: The fixing frame (21) is plugged into the top of the floor slab body (11) through the installation groove (211), and the fixing frame (21) is reinforced by the reinforcement screws (22).

7. The precast concrete composite floor slab according to claim 2, characterized in that: The limiting protrusions (212) are inserted into the interior of the fixing grooves (12) at both ends of the floor slab body (11).

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