Fabricated composite floor slab

Abstract

The utility model relates to the technical field of house buildings, and discloses an assembly type composite floor slab which comprises a floor slab body, the floor slab body is formed by pouring concrete, and a plurality of connecting assemblies arranged at equal intervals are fixedly embedded in the floor slab body. According to the assembly type composite floor slab, during production, only the connecting assemblies and the steel bars need to be built, then concrete is poured into the formwork, the complexity and cost in the production process are reduced, the production efficiency is improved, meanwhile, the linearly-arranged steel bars are fixedly embedded in the floor slab body, and the production efficiency is improved. The overall bearing capacity and stability of the floor slab body are further improved, the problem that due to the fact that too many holes are formed, the structural strength is weakened is effectively avoided, through the matched design of the inserting grooves in the left ends of the connecting square pipes and the inserting heads and the triangular design of the right ends of the inserting heads, rapid guiding-in and accurate butt joint are achieved, the installation convenience is improved, and the service life of the floor slab body is prolonged. And through cooperation of the limiting screw rods and the limiting holes, stable connection between the two floor slab main bodies is ensured.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and specifically relates to a prefabricated composite floor slab. Background Art

[0002] A composite floor slab is an assembled monolithic floor slab formed by laminating a precast slab and a cast-in-place reinforced concrete layer. The composite floor slab has good integrity, the upper and lower surfaces of the slab are flat, which is convenient for the decoration of the finishing layer, and has good integrity and continuity, which is beneficial to enhancing the seismic performance of the building, and is suitable for high-rise buildings and large-span buildings with high requirements for overall stiffness.

[0003] The existing patent (publication number: CN214614885U) discloses a prefabricated composite floor slab, including a floor slab main body. At least four threaded holes are opened on the upper end surface of the floor slab main body. Threaded columns are threadedly connected in the threaded holes. Hoisting rings are fixedly connected to the upper ends of the threaded columns. Limiting holes are opened at both ends of the left side surface of the floor slab main body. At least four equally spaced mounting holes are opened at the position between the two limiting holes on the left side surface of the floor slab main body; through the rotating seats, the first connecting rods, the second connecting rods, the threaded rings and the transmission threads arranged on the hollow columns and the rotating rods, after the hollow columns are inserted into the mounting holes, the rotating rods can be rotated. The rotation of the rotating rods can drive the threaded rings to move under the action of the transmission threads, and then the first connecting rods and the second connecting rods can be opened to firmly lock the hollow columns in the mounting holes, thereby effectively preventing the floor slab main body from loosening during splicing and making the connection of the floor slab more stable.

[0004] However, due to the complex structure of this floor slab, involving the manufacturing and assembly of multiple precision components, the production cost is relatively high, increasing the overall cost of the construction project. Secondly, at least four threaded holes need to be opened on the upper end surface of the floor slab main body of this device, and limiting holes also need to be opened at both ends of the left side surface of the floor slab main body. The opening of these holes will undoubtedly weaken the structural strength of the floor slab to a certain extent, increasing the risk of cracking or even breaking of the floor slab after being stressed. Especially in high-rise buildings or buildings bearing large loads, this risk is particularly prominent and may pose a threat to the overall safety of the building. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a prefabricated composite floor slab, which has the advantages of high strength and convenient production, and solves the problems raised in the background art.

[0006] To achieve the above purpose, this application provides the following technical solution: A prefabricated composite floor slab, including a floor slab main body, the floor slab main body is formed by concrete pouring, and a plurality of equally spaced connection components are fixedly embedded inside the floor slab main body;

[0007] Each of the said connecting components includes a connecting square pipe, a first connecting cylinder, two second connecting cylinders, two reserved threaded cylinders and a plug;

[0008] Each of the said connecting square pipes is fixedly inlaid with the floor slab main body. Each first connecting cylinder is fixedly connected to the middle of the back surface of the connecting square pipe. The two second connecting cylinders are respectively fixedly connected to the two ends of the front surface of the connecting square pipe close to them. The two reserved threaded cylinders are respectively fixedly connected to the upper surface and the bottom of the left end of the connecting square pipe close to them. Each plug is fixedly connected to the right end of the connecting square pipe close to it.

[0009] Through the above solution, during production, after only the connecting components and steel bars are built, concrete can be poured into the formwork. This not only reduces the complexity and cost in the production process, but also improves the production efficiency. At the same time, the linearly arranged steel bars fixedly inlaid in the floor slab main body further improve the overall bearing capacity and stability of the floor slab main body, effectively avoiding the problem of weakened structural strength caused by opening too many holes. The matching design of the slot at the left end of the connecting square pipe and the plug, as well as the triangular design at the right end of the plug, both achieve rapid introduction and precise docking, greatly improving the convenience and efficiency of installation. Through the cooperation of the limit screw and the limit hole, effective limitation of the plug is achieved, thereby ensuring the firm connection between the two floor slab main bodies. The connection is simple and reliable. The lifting rings sleeved on the outer surfaces of the steel bars at the rearmost and foremost positions of the floor slab main body not only facilitate the hoisting and transportation of the floor slab, but also ensure the flatness of the surface of the floor slab main body.

[0010] Further, a slot is opened at the left end of each of the said connecting square pipes, and the length of each plug is equal to the depth of the slot.

[0011] Through the above solution, through the setting of the slot, it is convenient for the plug of another floor slab main body to enter, and thus the purpose of quickly connecting the two floor slab main bodies is achieved.

[0012] Further, the right end of each of the said plugs is triangular.

[0013] Through the above solution, through the above setting, when the plug enters the slot, it can play a guiding role and facilitate the entry of the plug.

[0014] Further, a through limit hole is opened on the upper surface of each of the said plugs, and a limit screw is threadedly connected inside each of the said reserved threaded cylinders at the uppermost position. Through the above setting, after the plug enters the slot.

[0015] Through the above solution, by rotating the limit screw to move downward along the reserved threaded cylinder, the purpose of inserting the limit threaded rod into the limit hole can be achieved, the purpose of limiting the plug can be achieved, and thus the purpose of fixedly connecting the two floor slab main bodies can be achieved.

[0016] Furthermore, a hexagonal groove is provided at the top end of each of the limiting screw rods.

[0017] Through the above solution, the provision of the hexagonal groove facilitates the user to rotate the threaded rod.

[0018] Furthermore, the inner wall cross-section at the top end of each of the limiting holes is provided in a funnel shape.

[0019] Through the above solution, with the funnel-shaped design, when the reserved threaded cylinder is not on the same axis as the limiting hole but has a small deviation, it can make the plug extruded when the limiting screw rod moves downward, so that the limiting hole and the reserved threaded cylinder are on the same axis, improving the installation convenience.

[0020] Furthermore, a plurality of linearly arranged steel bars are fixedly embedded inside the floor slab main body, and each of the steel bars is inserted into the first connecting cylinder and the second connecting cylinder adjacent to it.

[0021] Through the above solution, with the above arrangement, the overall strength of the floor slab main body can be improved.

[0022] Furthermore, two lifting rings are sleeved on the outer surfaces of the two steel bars at the rearmost and foremost positions, and the two lifting rings are fixedly embedded in the floor slab main body.

[0023] Through the above solution, with the provision of the lifting rings, it is convenient for the user to carry out hoisting.

[0024] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0025] For this prefabricated composite floor slab, during production, only need to complete the construction of the connection components and steel bars, and then pour concrete into the formwork. This not only reduces the complexity and cost during the production process, but also improves the production efficiency. At the same time, the linearly arranged steel bars fixedly embedded in the floor slab main body further improve the overall load-bearing capacity and stability of the floor slab main body, effectively avoiding the problem of weakened structural strength caused by opening too many holes. The matching design of the slot on the left end of the connecting square pipe and the plug, as well as the triangular design on the right end of the plug, both achieve rapid introduction and precise docking, greatly improving the installation convenience and efficiency. Through the cooperation of the limiting screw rod and the limiting hole, effective limitation of the plug is achieved, thus ensuring the stable connection between the two floor slab main bodies. The connection is simple and reliable. The lifting rings sleeved on the outer surfaces of the steel bars at the rearmost and foremost positions of the floor slab main body not only facilitate the hoisting and transportation of the floor slab, but also ensure the flatness of the surface of the floor slab main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present application Figure 1 ;

[0027] Figure 2 Schematic three - dimensional view of the overall structure of this application Figure 2 ;

[0028] Figure 3 Structural diagram of the connection component and steel bars of this application;

[0029] Figure 4 Structural diagram of the connection component of this application.

[0030] In the figure:

[0031] 1. Floor slab main body; 2. Connection component; 201. Connecting square pipe; 202. First connecting cylinder; 203. Second connecting cylinder; 204. Reserved threaded cylinder; 205. Plug; 3. Slot; 4. Limit hole; 5. Limit screw; 6. Hexagonal groove; 7. Steel bar; 8. Hoisting ring. Specific implementation manners

[0032] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0033] Please refer to Figure 1 、 Figure 2 and Figure 3 , an assembled composite floor slab in this embodiment includes a floor slab main body 1. The floor slab main body 1 is formed by concrete pouring. A plurality of connection components 2 arranged at equal intervals are fixedly embedded inside the floor slab main body 1. Each connection component 2 includes a connecting square pipe 201, a first connecting cylinder 202, two second connecting cylinders 203, two reserved threaded cylinders 204 and a plug 205.

[0034] Please refer to Figure 1 、 Figure 3 and Figure 4 , each connecting square pipe 201 is fixedly embedded with the floor slab main body 1. Each first connecting cylinder 202 is fixedly connected to the middle of the back surface of the connecting square pipe 201. The two second connecting cylinders 203 are respectively fixedly connected to the two ends of the front surface of the connecting square pipe 201 close to it. The two reserved threaded cylinders 204 are respectively fixedly connected to the upper surface and the bottom of the left end of the connecting square pipe 201 close to it. Each plug 205 is fixedly connected to the right end of the connecting square pipe 201 close to it. A slot 3 is opened at the left end of each connecting square pipe 201. The length of each plug 205 is equal to the depth of the slot 3. Through the setting of the slot 3, it is convenient for the plug 205 of another floor slab main body 1 to enter, and thus the purpose of quickly connecting the two floor slab main bodies 1 can be achieved.

[0035] Please refer to Figure 1 , Figure 3 and Figure 4 , the right end of each plug 205 is triangular. Through the above setting, when the plug 205 enters the slot 3, it can play a guiding role to facilitate the entry of the plug 205. A through limiting hole 4 is provided on the upper surface of each plug 205. A limiting screw 5 is threadedly connected to the inside of each of the uppermost reserved threaded cylinders 204. Through the above setting, after the plug 205 enters the slot 3, by rotating the limiting screw 5 to move downward along the reserved threaded cylinder 204, the purpose of inserting the limiting threaded rod into the limiting hole 4 can be achieved, so as to achieve the purpose of limiting the plug 205, and further achieve the purpose of fixedly connecting the two floor bodies 1.

[0036] Please refer to Figure 1 , Figure 3 and Figure 4 , a hexagonal groove 6 is provided at the top end of each limiting screw 5. Through the setting of the hexagonal groove 6, it is convenient for the user to rotate the threaded rod. The cross-section of the inner wall at the top end of each limiting hole 4 is funnel-shaped. Through the funnel-shaped setting, when the reserved threaded cylinder 204 is not on the same axis as the limiting hole 4 but has a small deviation, when the plug 205 moves downward along the limiting screw 5, the plug 205 can be extruded so that the limiting hole 4 and the reserved threaded cylinder 204 are on the same axis, improving the installation convenience.

[0037] Please refer to Figure 1 , Figure 3 and Figure 4 , a plurality of linearly arranged steel bars 7 are fixedly embedded in the floor body 1, and each steel bar 7 is inserted into the first connecting cylinder 202 and the second connecting cylinder 203 adjacent to it. Through the above setting, the overall strength of the floor body 1 can be improved. Two lifting rings 8 are sleeved on the outer surfaces of the two steel bars 7 at the rearmost and foremost positions, and the two lifting rings 8 are fixedly embedded in the floor body 1. Through the setting of the lifting rings 8, it is convenient for the user to carry out hoisting.

[0038] A prefabricated composite floor slab in this embodiment only needs to complete the erection of the connection component 2 and the steel bars 7 during production, and then pour concrete into the formwork. This not only reduces the complexity and cost in the production process, but also improves the production efficiency. At the same time, the linearly arranged steel bars 7 fixedly embedded in the floor slab main body 1 further improve the overall bearing capacity and stability of the floor slab main body 1, effectively avoiding the problem of weakened structural strength caused by opening too many holes. The matching design of the slot 3 at the left end of the connecting square pipe 201 and the plug 205, as well as the triangular design at the right end of the plug 205, both achieve rapid introduction and precise docking, greatly improving the convenience and efficiency of installation. Through the cooperation of the limit screw 5 and the limit hole 4, effective limitation of the plug 205 is achieved, thus ensuring the firm connection between the two floor slab main bodies 1. The connection is simple and reliable. The lifting rings 8 sleeved on the outer surfaces of the steel bars 7 at the rearmost and foremost positions of the floor slab main body 1 not only facilitate the hoisting and transportation of the floor slab, but also ensure the flatness of the surface of the floor slab main body 1.

[0039] The working principle of the above embodiment is as follows: In the production stage, the connection component 2 is erected in the precast formwork. At the same time, the linearly arranged steel bars 7 are also inserted into the positions corresponding to the connection component 2 to ensure tight insertion into the first connection cylinder 202 and the second connection cylinder 203. Subsequently, concrete is poured into the formwork. After the concrete solidifies, the floor slab main body 1 containing the firmly connected connection component 2 and the steel bar 7 framework is formed. This process simplifies the complex production process of traditional floor slabs, reduces costs, and improves production efficiency. When it is necessary to connect two floor slab main bodies 1, the matching design of the plug 205 and the slot 3 at the left end of the connecting square pipe 201 can easily achieve rapid docking. The triangular design of the plug 205 plays a guiding role, enabling the plug 205 to smoothly enter the slot 3 to complete the preliminary connection. At this time, the two floor slab main bodies 1 are already preliminarily connected together. However, to ensure the firmness of the connection, further operations are required. Next, the limit screw 5 in the reserved threaded cylinder 204 is operated. The top end of the limit screw 5 is provided with a hexagonal groove 6 for easy rotation with tools. When the limit screw 5 is rotated and moves downward along the reserved threaded cylinder 204, its end will gradually approach and insert into the limit hole 4 on the plug 205. Since the inner wall at the top end of the limit hole 4 is designed in a funnel shape, even if there is a slight deviation between the reserved threaded cylinder 204 and the limit hole 4, it can be automatically adjusted and aligned during the downward pressing process of the limit screw 5 to ensure smooth insertion. Once the limit screw 5 is completely inserted into the limit hole 4, the connection between the two floor slab main bodies 1 is firmly locked, achieving a firm fixed connection.

[0040] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0041] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An assembled composite floor slab, comprising a floor slab body (1), characterized in that: The floor slab body (1) is cast in concrete, and a plurality of connection components (2) arranged at equal distances are fixedly embedded in the interior of the floor slab body (1); Each of the connection components (2) comprises a connecting square tube (201), a first connecting tube (202), two second connecting tubes (203), two reserved threaded tubes (204) and a plug (205); Each of the connecting square tubes (201) is fixedly embedded in the floor slab body (1), each of the first connecting tubes (202) is fixedly connected to the middle end of the back side of the connecting square tube (201), the two second connecting tubes (203) are respectively fixedly connected to the two ends of the front side of the connecting square tube (201) adjacent thereto, the two reserved threaded tubes (204) are respectively fixedly connected to the upper surface and the bottom of the left end of the connecting square tube (201) adjacent thereto, and each of the plugs (205) is fixedly connected to the right end of the connecting square tube (201) adjacent thereto.

2. The assembled composite floor slab according to claim 1, characterized in that: A slot (3) is provided at the left end of each connecting square tube (201), and the length of each plug (205) is equal to the depth of the slot (3).

3. The assembled composite floor slab according to claim 1, characterized in that: The right end of each of the plugs (205) is configured to be triangular in shape.

4. The assembled composite floor slab according to claim 1, characterized in that: A through-going limiting hole (4) is provided on the upper surface of each plug (205), and a limiting screw rod (5) is threadedly connected to the interior of each reserved threaded barrel (204) located at the top.

5. The assembled composite floor slab according to claim 4, characterized in that: A hexagonal groove (6) is formed at the top of each limiting screw (5).

6. The assembled composite floor slab according to claim 4, characterized in that: The cross-section of the inner wall at the top end of each limiting hole (4) is configured to be funnel-shaped.

7. The assembled composite floor slab according to claim 1, characterized in that: A plurality of linearly arranged steel bars (7) are fixedly embedded inside the floor slab body (1), and each of the steel bars (7) is plugged into a first connecting tube (202) and a second connecting tube (203) adjacent thereto.

8. The assembled composite floor slab according to claim 1, characterized in that: Two lifting rings (8) are sleeved on the outer surfaces of the two steel bars (7) located at the rear and the front, and the two lifting rings (8) are fixedly embedded in the floor slab body (1).

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