Prefabricated composite panel

Abstract

The utility model relates to a prefabricated composite board, comprising a board body, wherein two metal meshes are arranged in the board body, the two metal meshes are welded by a plurality of metal strips, a heat preservation board is arranged between the two metal meshes, and a plurality of fasteners are also arranged in the board body, the fasteners are used to fix the two metal meshes on both sides of the heat preservation board. The utility model has the characteristics of high strength and excellent heat preservation effect.

Description

Technical Field

[0001] The utility model relates to the field of concrete products, in particular to a prefabricated composite board. Background Art

[0002] Concrete composite slab is an important horizontal load-bearing component in prefabricated concrete structure. It has been widely used in residential buildings. It has the advantages of fast construction speed, high quality, energy saving and environmental protection. It is the development direction of future buildings.

[0003] A Chinese patent with publication number CN114232863A discloses a prefabricated composite panel, comprising a prefabricated panel body and main steel bars embedded in the prefabricated panel body, wherein the main steel bars comprise a steel outer jacket and a steel inner core arranged in the steel outer jacket, and a maintenance channel for steam to pass through is formed between the steel outer jacket and the steel inner core.

[0004] The structure of the above-mentioned product facilitates the maintenance of the composite board, but the above-mentioned composite board does not have a thermal insulation function and cannot meet the current construction needs of buildings. It is necessary to lay an additional insulation layer during the construction of the building, which increases the construction cost of the building. Utility Model Content

[0005] The present application provides a prefabricated composite panel having the characteristics of high strength and excellent thermal insulation effect.

[0006] The prefabricated composite panel provided in this application adopts the following technical solution:

[0007] A prefabricated composite panel comprises a panel body, wherein two metal meshes are arranged in the panel body, the two metal meshes are welded by a plurality of metal strips, a heat preservation panel is arranged between the two metal meshes, and a plurality of fasteners are also arranged in the panel body, the fasteners are used to fix the two metal meshes on both sides of the heat preservation panel.

[0008] By adopting the above technical solution, two metal meshes are fixed on both sides of the insulation board by fasteners, so that the two metal meshes and the insulation board can be placed together in the concrete of the prefabricated board during production. The two metal meshes will enhance the strength of the prefabricated board, and also firmly embed the insulation board into the prefabricated board, so that the prefabricated board has excellent insulation performance.

[0009] Preferably, the fasteners are stirrups that are hooped around two metal meshes, a number of the stirrups are equidistantly distributed along the length direction of the plate body, and a number of the stirrups are respectively welded to the two metal meshes.

[0010] By adopting the above technical solution, the stirrups can firmly fix the two metal meshes on the insulation board, and at the same time the stirrups can assist the two metal meshes to improve the strength of the prefabricated board.

[0011] Preferably, two groups of reinforcement parts are provided on a plurality of the stirrups, and the two groups of added parts on the same stirrup are respectively located on both sides of the stirrup, and the reinforcement parts are a plurality of metal rods provided on the stirrup.

[0012] By adopting the above technical solution, the provision of multiple metal bars can further improve the strength of the prefabricated panel.

[0013] Preferably, two metal bars in the same group and farthest apart are respectively bent at one end away from the corresponding stirrups to form a first bending portion and a second bending portion, and the bending direction of the first bending portion is opposite to the bending direction of the second bending portion.

[0014] By adopting the above technical solution, the opening of multiple first bending parts and multiple second bending parts can further enhance the strength of the prefabricated board. At the same time, when the two metal meshes are hoisted into the mold of the prefabricated board, the first bending part and the second bending part can play an auxiliary lifting role, making it convenient for the crane to lift the metal mesh.

[0015] Preferably, a protection box is provided between the two metal meshes, the insulation board is arranged in the protection box, and the outside of the protection box is wrapped with a layer of waterproof film.

[0016] By adopting the above technical solution, a protective box is provided to protect the insulation board, and the waterproof membrane is wrapped to prevent water in the concrete from penetrating the protective box and corroding the insulation board.

[0017] Preferably, a protective cushion is provided on the outside of the waterproof membrane, and four protrusions are provided on the protective cushion, and the four protrusions are respectively connected to the four corners of the protective box.

[0018] By adopting the above technical solution, the provision of the protective cushion and the raised portion makes it difficult for the protective box to be damaged when the fasteners fix the two metal meshes to the outside of the protective box, thereby extending the protection period of the protective box for the insulation board.

[0019] Preferably, the protective pad is a cotton pad and is water absorbent.

[0020] By adopting the above technical solution, when the metal mesh is placed in the concrete of the precast panel, water is first sprayed on the protective cushion to make the protective cushion saturated with water, so that during the curing process of the precast panel, the concrete inside the precast panel can absorb the water on the protective cushion, thereby preventing the concrete from cracking during the curing process and ensuring the strength of the concrete.

[0021] Preferably, there are two insulation boards in the protection box, and a sound insulation board is also provided in the protection box. The sound insulation board is arranged between the two insulation boards and is respectively connected to the two insulation boards.

[0022] By adopting the above technical solution, the sound insulation board can be provided to make the prefabricated board have certain sound insulation performance.

[0023] The sound insulation board and the two insulation boards are provided with dovetail grooves along the length direction of the sound insulation board on one side where the sound insulation board and the two insulation boards are abutted against each other, and the two insulation boards are provided with blocks that are engaged with the dovetail grooves.

[0024] By adopting the above technical solution, the connection between the sound insulation board and the thermal insulation board can be completed by inserting the clamping block into the corresponding dovetail groove.

[0025] The technical effects of this utility model are mainly reflected in the following aspects:

[0026] 1. The utility model embeds the metal mesh to enhance the strength of the prefabricated board and embeds the insulation board together, so that the prefabricated board has insulation performance;

[0027] 2. The utility model improves the strength of the prefabricated board and facilitates the lifting of the metal mesh by using multiple stirrups, multiple metal rods, multiple first bending parts and multiple second bending parts;

[0028] 3. The utility model further wraps a protective pad with water absorption performance on the outer layer of the waterproof membrane to prevent concrete cracking during concrete curing and ensure the strength of the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional structural diagram of the plate body of the present application.

[0030] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0031] Figure 3 yes Figure 1 Schematic diagram of the structure with two metal meshes, multiple stirrups and protective cushions.

[0032] Figure numerals: 1. plate body; 2. metal mesh; 3. insulation board; 31. block; 4. fastener; 41. stirrup; 5. reinforcement part; 51. metal rod; 52. first bending part; 53. second bending part; 6. protection box; 7. waterproof membrane; 8. protection cushion; 81. raised part; 9. sound insulation board; 91. dovetail groove. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -Attached Figure 3 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0034] A prefabricated composite plate of the present embodiment includes a plate body 1, two metal meshes 2 and a protective box 6 are embedded in the plate body 1, and the two metal meshes 2 are welded by a plurality of metal strips, and the metal strips are steel bars. The two metal meshes 2 are fixed to the two sides of the protective box 6 by a plurality of fasteners 4. The fasteners 4 are stirrups 41 that are hooped around the two metal meshes 2, and the plurality of stirrups 41 are equidistantly distributed along the length direction of the plate body 1, and the plurality of stirrups 41 are welded to the two metal meshes 2 by welding rods so that the plurality of stirrups 41 are fixed to the two metal meshes 2.

[0035] At the same time, two groups of reinforcement parts 5 are provided on each stirrup 41. The two groups of reinforcement parts on the same stirrup 41 are respectively located on both sides of the stirrup 41. The reinforcement part 5 is a plurality of metal bars 51 welded on the stirrup 41. The metal bars 51 are steel bars. The ends of the two metal bars 51 in the same group that are farthest away from the corresponding stirrup 41 are respectively bent to form a first bending part 52 and a second bending part 53. The bending direction of the first bending part 52 is opposite to the bending direction of the second bending part 53.

[0036] The outer cover of the protection box 6 is provided with a waterproof membrane 7, and the outer cover of the waterproof mold is provided with a protective cushion 8, which is a cotton cushion and has water absorption. The protective cushion 8 is provided with four protrusions 81, and the four protrusions 81 are respectively connected to the four corners of the protection box 6. When the stirrups 41 are hooped on the two metal meshes 2, the four corners of the protection box 6 are easily damaged, so the four protrusions 81 are specially provided to focus on protecting the four corners of the protection box 6.

[0037] Two insulation boards 3 and a sound insulation board 9 are installed in the protection box 6, wherein the sound insulation board 9 is arranged between the two insulation boards 3 and connected to the two insulation boards 3. Three dovetail grooves 91 are provided along the length direction of the sound insulation board 9 on the side where the sound insulation board 9 and the two insulation boards 3 abut against each other, and three clamping blocks 31 that are clamped and matched with the dovetail grooves 91 are fixed on the two insulation boards 3.

[0038] Before manufacturing the prefabricated board of the present application, water is first poured onto the protective cushion 8 so that the protective cushion 8 is fully absorbed by water. During the manufacturing process of the prefabricated board, a portion of concrete is first poured into the mold of the prefabricated board, and then the two hooks of the crane are hooked onto the first bending portion 52 and the second bending portion 53, and then the crane is operated to lift the two metal meshes 2 and the protective box 6, and the two metal meshes 2 and the protective box 6 are hoisted into the mold of the prefabricated board.

[0039] Then, concrete can be poured into the mold of the precast panel so that the two metal meshes 2 and the protective box 6 are completely located in the concrete of the precast panel. The concrete mold is then sent into the curing bin by a carrier. During the concrete curing process, the concrete inside the precast panel can absorb the water on the protective cushion 8, thereby preventing the concrete from cracking during the concrete curing process and ensuring the strength of the concrete.

[0040] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A prefabricated composite panel, comprising a panel body (1), characterized in that: Two metal meshes (2) are arranged in the plate body (1), the two metal meshes (2) are welded from a plurality of metal strips, a heat preservation plate (3) is arranged between the two metal meshes (2), and a plurality of fasteners (4) are also arranged in the plate body (1), the fasteners (4) are used to fix the two metal meshes (2) on both sides of the heat preservation plate (3).

2. A prefabricated composite panel according to claim 1, characterized in that: The fastener (4) is a stirrup (41) that is hooped around two metal meshes (2), and a plurality of the stirrups (41) are equidistantly distributed along the length direction of the plate body (1), and the plurality of stirrups (41) are fixedly connected to the two metal meshes (2).

3. A prefabricated composite panel according to claim 2, characterized in that: Two groups of reinforcement parts (5) are provided on a plurality of stirrups (41), and the two groups of reinforcement parts on the same stirrup (41) are respectively located on both sides of the stirrup (41), and the reinforcement parts (5) are multiple metal rods (51) provided on the stirrup (41), and the ends of the multiple metal rods (51) away from the corresponding stirrups (41) all pass through the metal mesh (2) on the same side.

4. A prefabricated composite panel according to claim 3, characterized in that: The ends of the two metal bars (51) in the same group and farthest from each other and away from the corresponding stirrups (41) are respectively bent to form a first bending portion (52) and a second bending portion (53), and the bending direction of the first bending portion (52) is opposite to the bending direction of the second bending portion (53).

5. The prefabricated composite panel according to claim 1, characterized in that: A protection box (6) is provided between the two metal meshes (2), the insulation board (3) is arranged in the protection box (6), and the outside of the protection box (6) is wrapped with a layer of waterproof film (7).

6. A prefabricated composite panel according to claim 5, characterized in that: The waterproof membrane (7) is covered with a protective cushion (8) on the outside. The protective cushion (8) is provided with four protrusions (81). The four protrusions (81) are respectively connected to the four corners of the protective box (6).

7. The prefabricated composite panel according to claim 6, characterized in that: The protective soft pad (8) is a cotton soft pad and is water-absorbent.

8. The prefabricated composite panel according to claim 5, characterized in that: There are two insulation boards (3) in the protection box (6), and a sound insulation board (9) is also provided in the protection box (6). The sound insulation board (9) is arranged between the two insulation boards (3) and is respectively connected to the two insulation boards (3).

9. The prefabricated composite panel according to claim 8, characterized in that: A dovetail groove (91) is provided on the surface of the sound insulation board (9) abutting against the two insulation boards (3) along the length direction of the sound insulation board (9), and a clamping block (31) that is clamped and matched with the dovetail groove (91) is provided on the two insulation boards (3).

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