Fabricated thermal insulation wall panel

Abstract

The application discloses an assembled heat-insulation wallboard, which comprises a first concrete layer and a second concrete layer arranged in parallel, a concrete connecting belt connected between the first concrete layer and the second concrete layer, and concrete protrusions connected to the two sides of the first concrete layer and the second concrete layer; the first concrete layer, the second concrete layer, the concrete connecting belt and the concrete protrusions are integrally cast and formed; a heat-insulation layer is arranged on one side of the first concrete layer; and a formwork mounting position and / or a supporting piece mounting position are arranged on the first concrete layer or the second concrete layer. The wallboard is firm in whole and has the heat-insulation function, the heat-insulation layer is not easy to fall off, is convenient to hoist in use, and is low in cost; the wallboard is convenient to support and to mount a formwork on one side, is simple in operation, and thus can improve work efficiency and is good in connection firmness when a house is built.

Description

Technical Field

[0001] This invention relates to a wall panel for building use, specifically a prefabricated insulated wall panel. Background Technology

[0002] Currently, the use of prefabricated insulated wall panels in building construction is gaining popularity in the construction industry, which aligns with the concept of green energy conservation. During construction, prefabricated concrete wall panels are placed directly on beams or roof slabs, with gaps left between adjacent panels. Reinforcing bars are then inserted into these gaps, and concrete is poured to connect and fix the adjacent concrete wall panels. However, this method still has the following shortcomings: 1. In order to hoist the concrete wall panel onto the beam or roof slab, connectors need to be pre-embedded in the concrete wall panel to connect the hoisting equipment, and the use of metal connectors significantly increases the cost; 2. After the concrete wall panel is hoisted onto the beam or roof slab, it needs to be supported from the side to prevent it from tipping over. However, the existing precast concrete wall panels do not have suitable parts to connect with the support components, which makes the support operation cumbersome, increases the workload, and reduces the construction efficiency; 3. When connecting and fixing two adjacent concrete wall panels with cast-in-place concrete, formwork needs to be installed on both sides of the pouring area. However, when there is already a wall on one side of the pouring area (such as the wall of a neighbor's house), only one side of the formwork can be supported, because it is not possible to use the formwork on both sides to fix each other as with double-sided formwork. This makes single-sided formwork support more difficult and cumbersome; 4. The existing wall panels with insulation layers are not very strong overall, and the outer insulation layer is easy to fall off. Summary of the Invention

[0003] The purpose of this invention is to provide a prefabricated insulated wall panel that offers high overall stability, prevents the insulation layer from falling off, eliminates the need for metal connectors during lifting, thus reducing costs; it is also easy to support and use single-sided formwork, simplifying operation and improving work efficiency, and ensuring strong connections during house construction.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A prefabricated insulated wall panel includes a first concrete layer and a second concrete layer arranged in parallel. A concrete connecting strip connects the first concrete layer and the second concrete layer. Concrete protrusions are connected to both sides of the first concrete layer and the second concrete layer. The first concrete layer, the second concrete layer, the concrete connecting strip and the concrete protrusions are integrally cast. An insulation layer is provided on one side of the first concrete layer. A template installation position and / or a support installation position are provided on the second concrete layer.

[0006] Preferably, the insulation layer is connected to the first concrete layer via a connector.

[0007] More preferably, a mortar layer is provided on the outside of the insulation layer, and a wire mesh is provided in the mortar layer. One end of the connector is connected to the wire mesh, and the other end of the connector passes through the insulation layer and is inserted into the first concrete layer.

[0008] Preferably, the concrete connecting strip is vertically connected to the first concrete layer and the second concrete layer along the vertical and / or horizontal direction of the first concrete layer or the second concrete layer, and there are multiple concrete connecting strips, which are spaced apart along the vertical direction and / or along the horizontal direction.

[0009] Preferably, the concrete protrusions are multiple and spaced apart on both sides of the first and second concrete layers, and the insulation layer extends to both sides with its side edges protruding beyond the concrete protrusions.

[0010] Preferably, the template mounting position is a hollow hole or a hole with a filling layer; the support mounting position is a hollow hole or a hole with a filling layer.

[0011] Preferably, there are multiple template mounting positions distributed on both sides of the second concrete layer, and one or more support mounting positions are disposed between the template mounting positions on both sides of the second concrete layer.

[0012] Preferably, the template mounting position and the support mounting position are hollow rectangular or elliptical holes with a filling layer.

[0013] Preferably, a wire mesh is provided inside the first concrete layer, the second concrete layer and the concrete connecting strip, and a filling layer is provided between the first concrete layer, the second concrete layer and the concrete connecting strip.

[0014] Preferably, the wire mesh inside the first and second concrete layers extends to both sides into the gap between the concrete protrusions.

[0015] In the above technical solution, the first and second concrete layers, the concrete connecting strip, and the concrete protrusions are integrally cast, resulting in high overall strength. Furthermore, the gaps between the first and second concrete layers and the concrete connecting strip are not filled with concrete (or only filled with lightweight foam or similar materials), which helps to reduce overall weight while still meeting strength requirements. The insulation layer enhances the insulation effect, and its connection is stronger and less prone to detachment when cast within the first concrete layer via connectors. During hoisting, it can hook onto the concrete protrusions on both sides without the need for metal connectors, reducing costs. Moreover, during use, when pouring concrete between two adjacent prefabricated insulation wall panels, the recesses between the concrete protrusions are filled with concrete, forming a mortise-and-tenon structure that enhances the connection's strength. The pre-set template installation positions on the second concrete layer allow for the insertion of detachable installation components to fix the template, enabling convenient single-sided template support. The support installation positions allow for the insertion of detachable support components to connect with support columns, thus providing convenient support for the wall panels. Installing wire mesh in the first and second concrete layers, as well as the concrete connecting strip, effectively enhances strength. The wire mesh extending from both sides of the first and second concrete layers helps strengthen the connection with the concrete poured on either side. When two wall panels are placed with a certain gap between them, they are firmly connected by pouring concrete into the gap. At this point, the protruding concrete bumps on both sides of the insulation board are located on the outside of the newly poured concrete, providing insulation for that section. This eliminates the need for additional insulation on the poured section, simplifying construction. This prefabricated insulation wall panel system saves on concrete and metal connectors, facilitating hoisting, single-sided formwork support, and side support. It is convenient to construct, improves efficiency, effectively reduces costs, and achieves energy conservation and environmental protection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention (without a filling layer).

[0017] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0018] Figure 3 A cross-sectional view of the second concrete layer (with a filling layer).

[0019] Figure 4 This is a partial cross-sectional view of an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the T-shaped connector structure. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the present invention.

[0022] like Figures 1 to 5 As shown, this prefabricated insulated wall panel includes a first concrete layer 1 and a second concrete layer 2, which are arranged in parallel. A vertical concrete connecting strip 3 and a horizontal concrete connecting strip 4 are provided between the first concrete layer 1 and the second concrete layer 2. The concrete connecting strips 3 and 4 connect the first concrete layer 1 and the second concrete layer 2 on both sides, thereby providing overall reinforcement. A vertical concrete connecting strip 3 can be provided at certain intervals (e.g., 60 cm), and one or two horizontal concrete connecting strips 4 can be provided. In one embodiment, only the vertical concrete connecting strip 3 can be provided without the horizontal concrete connecting strip 4, or only the horizontal concrete connecting strip 4 can be provided without the vertical concrete layer 3. Concrete protrusions 5 are provided on the left and right sides of the first concrete layer 1 and the second concrete layer 2, connecting the first concrete layer 1 and the second concrete layer 2 from the side. As a preferred embodiment, wire mesh 10 is provided inside the first concrete layer 1 and the second concrete layer 2, the vertical concrete connecting strip 3, the horizontal concrete connecting strip 4, and the concrete protrusions 5 to increase strength and firmness. Furthermore, the wire mesh 10 inside the first concrete layer 1 and the second concrete layer 2 can extend into the gap between two adjacent concrete protrusions 5 (only the horizontal bars of the wire mesh 10 can extend, or both horizontal and vertical bars can extend), thus enhancing the connection strength when pouring concrete on both sides. An insulation layer 11 is provided on the outside of the first concrete layer 1. The insulation layer 11 can be a foam insulation layer, etc., and is connected to the first concrete layer 1 via connectors. In one embodiment, a mortar layer 12 is also provided on the outside of the insulation layer 11, and a wire mesh 13 is provided inside the mortar layer 12. The end of a mushroom-shaped connector 14 abuts against the wire of the wire mesh 13, and the rod of the connector 14 passes through the mortar layer 12 and the insulation layer 11 and extends into the first concrete layer 1, thereby achieving the connection between the insulation layer 11 and the first concrete layer 1, while ensuring the strength of the connection. Figure 4 Of course, a mortar layer can also be omitted, and the insulation layer can be directly connected to the first concrete layer using connectors.

[0023] Several hollow holes or holes with filling layers are reserved in the second concrete layer 2 as template installation positions 6 and support installation positions 7. When the template installation positions 6 and support installation positions 7 have filling layers, the filling layers are used to occupy space during the precast pouring of the second concrete layer 2, thereby reserving holes for installing connectors. If the filling layer is removed in the end, it is a hollow hole; if the filling layer is not removed, it is a hole with a filling layer. In one embodiment, both the template installation positions 6 and support installation positions 7 are rectangular holes, and there are multiple template installation positions 6 distributed on the left and right edges of the first concrete layer 1, such as three distributed from top to bottom on each side, while the support installation positions 7 are set as needed, one or two, and located in the middle of the template installation positions 6 on both sides. In use, the entire wall panel is hoisted onto the beam or top plate by hooking the concrete protrusions 5 on both sides, and then one end of the T-shaped support 15 is inserted into the rectangular support installation position 7 along the length direction and rotated 90 degrees so that the T-shaped support 15 ( Figure 5 The support 15 is inserted into the two long sides of the support mounting position 7, and the exposed part (this part of the T-shaped support is threaded) is fitted with a washer and tightened with a nut into the support mounting position 7. Then, the support 15 is connected to the support column, so that the support column supports the entire wall panel and prevents the wall panel from tilting. The formwork mounting position 6 can also be similarly inserted with the support, and then the formwork is installed on one side of the support, so as to realize the single-side support when the double-side support is not possible. The above-mentioned rectangular hole can also be an oval hole, which makes it easy to insert the connector and rotate it 90 degrees to lock it in place. Of course, other shapes of holes are also possible.

[0024] After two prefabricated insulated wall panels are hoisted onto a beam or roof slab, a pouring gap is left between the two wall panels, and reinforcing bars are placed in the gap. Templates are installed on both sides of the gap, and then concrete is poured into the gap. After the concrete solidifies, the two wall panels are connected and fixed together. In one embodiment, the insulation layer 11 extends to both sides and the edges of the insulation layer 11 protrude beyond the concrete protrusions 5. When the two prefabricated insulated wall panels are installed, the insulation layer 11 of one wall panel is spliced ​​with the insulation layer 11 of the other wall panel. The concrete protrusions 5 of the two wall panels will be spaced apart by a certain gap. When concrete is poured into the gap, the poured concrete connects the two wall panels together, and the poured concrete is also insulated by the insulation layer 11, so there is no need to add an insulation layer to the newly poured concrete (of course, in one embodiment, the insulation layer 11 can also be flush with the first concrete layer 1 without protruding beyond the concrete protrusions 5).

[0025] In a preferred embodiment, the gaps between the first concrete layer 1, the second concrete layer 2, the concrete connecting strip 3, and the concrete connecting strip 4 are filled with a filling layer 9. Figure 3The infill layer 9 is used as a placeholder and shaping element during the casting of the first concrete layer 1, the second concrete layer 2, the concrete connecting strip 3, and the concrete connecting strip 4 in the precast assembled wall. That is, after the infill layer 9 is set, gaps will be formed. Pouring concrete into these gaps will form the first concrete layer 1, the second concrete layer 2, and the concrete connecting strip 3 (see the manufacturing process below). The infill layer 9 located near the concrete protrusion 5 will block the concrete poured between the two precast insulation wall panels, thereby limiting the amount of concrete flowing into the wall (if the wall is completely filled with the infill layer, no concrete will flow into the wall; if part of the infill layer is removed, some will flow into the wall, which will enhance the mortise and tenon joint effect).

[0026] The concrete protrusions 5 serve as support points for lifting, thus avoiding the use of metal connectors. Furthermore, in a preferred embodiment, multiple (e.g., three) concrete protrusions 5 are provided on each side of the wall panel and spaced apart from each other. This way, when two adjacent wall panels are cast together, the wall panels and the cast concrete form a tenon-and-mortise structure, enhancing the connection's strength.

[0027] In a preferred embodiment, the mortar layer 12 has a thickness of 0.5-5 cm, the insulation layer 11 has a thickness of 5-25 cm, the first concrete layer 1 and the second concrete layer 2 have a width of 2-4 meters, a height of 2-5 meters, and a thickness of 3-5 cm, the concrete connecting strip 3 and the concrete connecting strip 4 have a thickness of 4-10 cm, and the concrete protrusion 5 has a thickness of 5-10 cm.

[0028] When making the above-mentioned prefabricated insulated wall panels, first lay wire mesh 13 on the template and pre-set mushroom nail-shaped connectors, then pour mortar to form mortar layer 12, then lay insulation layer 11, and let the mushroom nail-shaped connectors pass through insulation layer 11. Then, the first concrete layer 1, the second concrete layer 2, the concrete connecting strip 3, the concrete connecting strip 4 and the concrete protrusion 5 are made by integral casting. The specific method is as follows: First, the insulation layer 11 is used as a template and other templates are used around it to form a rectangular cavity. The two sides of the rectangular cavity protrude outward to leave space for the concrete protrusions 5 to be poured. Steel wire mesh is laid in the protrusions and the rectangular cavity as reinforcement. Then, the concrete is poured to form the first concrete layer 1. Then, the filling layer 9 is laid on the first concrete layer 1. Cavities for concrete connecting strips 3 and 4 are left between the filling layers 9, and steel wire mesh is laid into the cavities. Then, the concrete is poured to form the concrete connecting strips 3 and 4. Finally, the second concrete layer 2, which is located on the top layer (because it is poured from bottom to top), is poured accordingly. The template installation position and the support installation position need to be reserved in advance by the filling layer to reserve the hole. The filling layer 9 can be made of lightweight foam, which helps to reduce the overall weight.

[0029] In addition to using a filling layer for the space, hollow plastic shells can also be used as a filling layer.

[0030] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fabricated thermal insulation wall panel comprising a first concrete layer and a second concrete layer arranged in parallel, characterized in that, The first concrete layer and the second concrete layer are connected by a concrete connecting strip, and the two sides of the first concrete layer and the second concrete layer are connected by concrete protrusions, which are integrally cast and formed, the first concrete layer is provided with a heat preservation layer on one side, and the second concrete layer is provided with a formwork mounting position and / or a support mounting position, The concrete connecting strip is vertically connected to the first concrete layer and the second concrete layer along the vertical direction and / or the horizontal direction of the first concrete layer or the second concrete layer, the concrete connecting strip has multiple and is arranged along the vertical direction and / or the horizontal direction, The concrete protrusions are multiple and are arranged at intervals on the two sides of the first concrete layer and the second concrete layer, the heat preservation layer extends to the two sides and the two side edges of the heat preservation layer protrude from the concrete protrusions.

2. The fabricated thermal insulation wall panel according to claim 1, wherein, The heat preservation layer is connected to the first concrete layer by a connecting piece.

3. The fabricated thermal insulation wall panel according to claim 2, wherein, A mortar layer is arranged on the outer side of the heat preservation layer, a steel mesh is arranged in the mortar layer, one end of the connecting piece is connected to the steel mesh, and the other end of the connecting piece is inserted into the first concrete layer through the heat preservation layer.

4. The fabricated thermal insulation wall panel according to claim 1, wherein, The formwork mounting position is a hollow hole or a hole with a filling layer; and the support mounting position is a hollow hole or a hole with a filling layer.

5. The fabricated thermal insulation wall panel according to claim 4, wherein, The formwork mounting position is multiple and is distributed on the two sides of the second concrete layer, and the support mounting position is one or more and is arranged between the formwork mounting positions on the two sides of the second concrete layer.

6. The fabricated thermal wall panel of claim 1, wherein, The formwork mounting position and the support mounting position are hollow or have a filling layer.

7. The fabricated thermal wall panel of claim 1, wherein, A steel mesh is arranged in the first concrete layer, the second concrete layer and the concrete connecting strip, and a filling layer is arranged between the first concrete layer, the second concrete layer and the concrete connecting strip.

8. The fabricated thermal insulation wall panel according to claim 7, wherein, The steel mesh in the first concrete layer and the second concrete layer extends to the gap between the concrete protrusions on the two sides.

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