Splicing type prefabricated concrete plate

Abstract

The utility model relates to the technical field of building construction, in particular to a splicing type prefabricated concrete plate, a framework unit is a steel framework formed by bending reinforcing steel bars, and concrete is poured on the framework unit through a formwork to form a base plate unit. According to the scheme, a plurality of connecting blocks are arranged on the framework unit and distributed in the circumferential direction of the framework unit, specifically, N connecting blocks are arranged on the left side and the right side of the framework unit respectively, M connecting blocks are arranged on the front side and the rear side of the framework unit respectively, the connecting blocks are exposed to the outer side of the base plate unit, and hinge holes are formed in the connecting blocks; during assembly, the adjacent base plate units can be embedded together through the connecting blocks, and the adjacent base plate units can be rotationally connected by inserting reinforcing steel bars into the hinge holes. Through the design of the structure, stress generated by arch deformation of a foundation to the base plate unit can be reduced, the structural strength of the base plate unit is improved, and the service life of the prefabricated concrete plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a spliced ​​prefabricated concrete slab. Background Art

[0002] Precast cement board is a commonly used material in construction. It usually refers to concrete boards that are prefabricated in the factory and can be directly installed and used after being transported to the construction site. Compared with the traditional on-site casting method, precast cement board can reduce on-site construction time, speed up the progress of the entire project, and significantly improve construction efficiency. Therefore, it is widely used in the field of construction.

[0003] Existing precast cement boards are usually cast with concrete or concrete with a reinforced steel frame. In order to ensure the versatility of precast cement boards, the appearance structure of precast cement boards is usually a rectangular concrete block. After the precast cement boards are laid, if the foundation is not properly treated, such as uneven concrete pouring or loose foundation compaction, the laid precast cement boards may be arched and deformed, resulting in cracks and other defects at the corners of the precast cement boards, which requires the replacement of a large number of precast cement boards, resulting in loss of manpower and material resources. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a spliced ​​prefabricated concrete board with high structural strength, which can avoid corner cracks caused by stress and increase the service life of the prefabricated concrete board.

[0005] A spliced ​​prefabricated concrete slab according to an embodiment of the utility model comprises:

[0006] Baseboard unit;

[0007] A skeleton unit, wherein the skeleton unit is arranged in the base plate unit; N connection blocks are respectively arranged on the left and right sides of the skeleton unit, and M connection blocks are respectively arranged on the front and rear sides of the skeleton unit; the connection blocks protrude from the outside of the base plate unit; wherein N is an odd number greater than or equal to 1, and M is an even number greater than or equal to 2; hinge holes are arranged on the connection blocks; adjacent skeleton units can be rotatably connected through the hinge holes.

[0008] According to some embodiments of the present invention, the skeleton unit is provided with at least two groups of annular steel rings, and the connecting block is provided with fixing holes corresponding to the annular steel rings.

[0009] According to some embodiments of the present invention, the connection blocks are spaced at the same distance on the annular steel ring.

[0010] According to some embodiments of the present invention, a hollow groove is provided on the connecting block.

[0011] According to some embodiments of the present invention, chamfers are respectively provided at the four corners of the substrate unit.

[0012] According to some embodiments of the utility model, the annular steel ring is provided with an arc-shaped bend corresponding to the chamfer.

[0013] According to some embodiments of the utility model, the annular steel ring is formed by bending a plain round steel bar.

[0014] According to some embodiments of the present invention, the connecting block is fixed to the annular steel ring by welding.

[0015] According to some embodiments of the present invention, the skeleton unit is provided with reinforcing ribs.

[0016] According to some embodiments of the present invention, the surface of the substrate unit is provided with anti-slip grooves.

[0017] A spliced ​​prefabricated concrete slab according to an embodiment of the utility model has at least the following beneficial effects:

[0018] According to the scheme of the utility model, the spliced ​​prefabricated concrete slab includes a base plate unit and a skeleton unit, wherein the skeleton unit is a steel skeleton formed by bending steel bars, and the base plate unit is formed by pouring concrete on the skeleton unit through a template. In this scheme, a plurality of connection blocks are arranged on the skeleton unit, and the plurality of connection blocks are distributed in the circumferential direction of the skeleton unit. Specifically, N connection blocks are arranged on the left and right sides of the skeleton unit, and M connection blocks are arranged on the front and back sides, respectively. The connection blocks are exposed on the outside of the base plate unit, and hinge holes are arranged on the connection blocks; during assembly, adjacent base plate units can be inlaid together through the connection blocks, and adjacent base plate units can be rotatably connected by inserting steel bars into the hinge holes; the design of this structure can reduce the stress on the base plate unit caused by the arch deformation of the foundation, and improve the structural strength of the base plate unit, thereby improving the service life of the prefabricated concrete slab. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a splicing structure of the utility model;

[0020] Figure 2 A structural schematic diagram of the skeleton unit of the utility model;

[0021] Figure 3 A structural schematic diagram of a skeleton unit with reinforcing ribs of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the skeleton unit of the utility model before bending.

[0023] In the figure:

[0024] 100-base unit, 101-chamfer, 102-anti-slip pattern

[0025] 200-skeleton unit, 210-connecting block, 211-hinge hole, 212-hollow groove, 213-fixing hole, 220-annular steel ring, 221-arc bend, 230-reinforcement rib. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 on the present invention.

[0028] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] Reference Figures 1 to 4 As shown, the utility model discloses a splicing type prefabricated concrete panel, including a base plate unit 100 and a frame unit 200. In this embodiment, the frame unit 200 is arranged in the base plate unit 100; N connecting blocks 210 are respectively arranged on the left and right sides of the frame unit 200, and M connecting blocks 210 are respectively arranged on the front and rear sides of the frame unit 200; the connecting blocks 210 protrude from the outside of the base plate unit 100; wherein N is an odd number greater than or equal to 1, and M is an even number greater than or equal to 2; hinge holes 211 are arranged on the connecting blocks 210; adjacent frame units 200 can be rotatably connected through the hinge holes 211. Specifically, refer to Figure 1As shown, the splicing type prefabricated concrete slab can splice multiple base plate units 100 together to form a whole, the skeleton unit 200 is a steel skeleton formed by bending steel bars, and the base plate unit 100 is formed by pouring concrete on the skeleton unit 200 through a template. In this embodiment, a plurality of connection blocks 210 are arranged on the skeleton unit 200, and the plurality of connection blocks 210 are distributed in the circumferential direction of the skeleton unit 200; specifically, an odd number of connection blocks 210 are arranged on the left and right sides of the skeleton unit 200, and an even number of connection blocks 210 are arranged on the front and back sides of the skeleton unit 200. Through the design of this structure, when splicing, the connection blocks 210 on the front and back sides and the left and right sides of the base plate unit 100 are staggered, so that the front and back sides of the base plate unit 100 and the left and right sides of another base plate unit 100 can be spliced ​​together by an inlay connection method. And sequentially extend to form a prefabricated platform with multiple base plate units 100. In this embodiment, the connection block 210 is exposed on the outside of the substrate unit 100, and a hinge hole 211 is provided on the connection block 210; during assembly, adjacent substrate units 100 can be inlaid together through the connection block 210, and adjacent substrate units 100 can be rotatably connected by inserting steel bars into the hinge hole 211; the design of this structure can reduce the stress on the substrate unit 100 caused by the arch deformation of the foundation, and improve the structural strength of the substrate unit 100, thereby improving the service life of the precast concrete slab.

[0031] In some embodiments of the present invention, the skeleton unit 200 is provided with at least two groups of annular steel rings 220, and the connecting block 210 is provided with fixing holes 213 corresponding to the annular steel rings 220. Figure 3 As shown, specifically, in this embodiment, the connection block 210 is provided with two fixing holes 213, and the skeleton unit 200 is provided with two annular steel rings 220, which are arranged symmetrically up and down, and the connection block 210 is respectively connected to the two annular steel rings 220 through the two fixing holes 213, and a plurality of connection blocks 210 are arranged on the circumference of the annular steel ring 220. Through the design of this structure, the plurality of annular steel rings 220 can be firmly fixed, and the connection block 210 can be prevented from rotating. Thus, the stability of the skeleton unit 200 is improved.

[0032] In some embodiments of the present invention, the spacing between the connection blocks 210 on the annular steel ring 220 is the same. Figure 4As shown, when making the skeleton unit 200, first place two 10# steel bars in parallel, then pass a number of connection blocks 210 through the steel bars in sequence, and the spacing between adjacent connection blocks 210 is the same, then weld the connection blocks 210 to the steel bars in sequence, and further, cut the steel bars by designing the size; further, bend the steel bars into a ring by a bending device to make a ring steel ring 220. In this embodiment, the length of the connection block 210 is less than the spacing between adjacent connection blocks 210. Through the design of this structure, the position of the connection block 210 does not need to be accurately located, and the adjacent base plate units 100 can be smoothly spliced. The structure is simple, convenient and practical, and the process difficulty is reduced, and the processing efficiency is improved.

[0033] In some embodiments of the present invention, a hollow groove 212 is provided on the connection block 210. In this embodiment, by providing the hollow groove 212 on the connection block 210, the material usage of the connection block 210 can be saved, thereby reducing the cost.

[0034] In some embodiments of the utility model, chamfers 101 are respectively provided at the four corners of the substrate unit 100. In this embodiment, the substrate unit 100 is a rectangular structure, and a prefabricated platform can be formed by sequentially splicing the substrate units 100. In this embodiment, chamfers 101 are respectively provided at the four corners of the substrate unit 100. By providing the chamfers 101, it is possible to avoid the substrate unit 100 from being broken at the corners during transportation or splicing. The chamfers 101 of the parallel substrate units 100 are combined together to form a rectangular hole. In some special use environments, the rectangular hole can be used as a water leakage hole. Through the design of this structure, the practicality of this embodiment can be improved.

[0035] In some embodiments of the utility model, the annular steel ring 220 is provided with an arc bend 221 corresponding to the chamfer 101. In this embodiment, the spliced ​​precast concrete slab can splice a plurality of substrate units 100 together to form a whole, the skeleton unit 200 is a steel skeleton formed by bending steel bars, and the substrate unit 100 is formed by pouring concrete on the skeleton unit 200 through a template. The annular steel ring 220 is close to the peripheral wall of the substrate unit 100, and after the pouring is completed, the structural strength of the edge of the substrate unit 100 can be improved. By respectively providing chamfers 101 at the four corners of the substrate unit 100, the corners of the substrate unit 100 can be further prevented from being damaged. In this embodiment, by providing the arc bend 221, the annular steel ring 220 can be prevented from being exposed on the outer peripheral wall of the substrate unit 100, and the structural strength of the corners of the substrate unit 100 can be improved.

[0036] In some embodiments of the present invention, the annular steel ring 220 is formed by bending a plain round steel bar. The annular steel ring 220 made of a plain round steel bar can reduce the dimensional accuracy of the connecting block 210 and facilitate the installation of the connecting block 210.

[0037] In some embodiments of the utility model, the connection block 210 is fixed to the annular steel ring 220 by welding. In this embodiment, the connection block 210 can be connected to the annular steel ring 220 by deformation, or fixed to the annular steel ring 220 by welding. The welding fixation method has the advantages of good structural strength and easy processing.

[0038] In some embodiments of the present invention, the skeleton unit 200 is provided with reinforcing ribs 230. Figure 3 As shown, in this embodiment, the spliced ​​prefabricated concrete slab can be designed into various specifications according to specific usage requirements. When the surface area of ​​the spliced ​​prefabricated concrete slab exceeds 0.5m 2 When the reinforcing ribs 230 are provided, the overall structural strength of the spliced ​​precast concrete slab can be improved. Specifically, the reinforcing ribs 230 are formed by cutting steel bars of the same type as the annular steel ring 220. The two ends of the reinforcing ribs 230 are respectively welded to the connecting blocks 210 on both sides of the skeleton unit 200. Specifically, each group of corresponding connecting blocks 210 is provided with two reinforcing ribs 230. The structural strength of the spliced ​​precast concrete slab can be improved by the design of this structure.

[0039] In some embodiments of the present invention, the surface of the base unit 100 is provided with anti-skid grooves 102. In this embodiment, when the spliced ​​prefabricated concrete slab is laid on the ground as a ground slab or a pedestrian crossing slab, the friction of the surface of the base unit 100 can be improved by providing the anti-skid grooves 102 on the surface of the base unit 100.

[0040] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A spliced ​​prefabricated concrete panel, characterized in that: include: A substrate unit (100); A skeleton unit (200), wherein the skeleton unit (200) is arranged in the base plate unit (100); N connection blocks (210) are respectively arranged on the left and right sides of the skeleton unit (200), and M connection blocks (210) are respectively arranged on the front and rear sides of the skeleton unit (200); the connection blocks (210) protrude from the outer side of the base plate unit (100); wherein N is an odd number greater than or equal to 1, and M is an even number greater than or equal to 2; hinge holes (211) are arranged on the connection blocks (210); and adjacent skeleton units (200) can be rotatably connected through the hinge holes (211).

2. The spliced ​​prefabricated concrete slab according to claim 1 is characterized in that: The skeleton unit (200) is provided with at least two groups of annular steel rings (220), and the connection block (210) is provided with fixing holes (213) corresponding to the annular steel rings (220).

3. The spliced ​​prefabricated concrete slab according to claim 2 is characterized in that: The connection blocks (210) are spaced at the same distance from each other on the annular steel ring (220).

4. The spliced ​​prefabricated concrete slab according to claim 2, characterized in that: The connection block (210) is provided with a hollow groove (212).

5. The spliced ​​prefabricated concrete slab according to claim 2, characterized in that: Chamfers (101) are respectively provided at the four corners of the substrate unit (100).

6. The spliced ​​prefabricated concrete slab according to claim 5, characterized in that: The annular steel ring (220) is provided with an arc-shaped bend (221) corresponding to the chamfer (101).

7. The spliced ​​prefabricated concrete slab according to claim 6, characterized in that: The annular steel ring (220) is formed by bending a plain round steel bar.

8. The spliced ​​prefabricated concrete slab according to claim 7, characterized in that: The connection block (210) is fixed on the annular steel ring (220) by welding.

9. The spliced ​​prefabricated concrete slab according to claim 8, characterized in that: The skeleton unit (200) is provided with reinforcing ribs (230).

10. The spliced ​​prefabricated concrete slab according to claim 1, characterized in that: The surface of the base plate unit (100) is provided with anti-slip grooves (102).

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