Flame-retardant building formwork

Abstract

The utility model belongs to the technical field of template structure relates to a kind of flame-retardant building template, comprising: package core support layer, substrate layer, flame-retardant layer and template face, the substrate layer, flame-retardant layer and template face are sequentially inside and outside in the both sides of core support layer;The core support layer includes metal keel frame and light flame-retardant filling layer, and the light flame-retardant filling layer is filled in metal keel frame;The metal keel frame includes main keel and secondary keel, and the secondary keel is welded in main keel;The flame-retardant layer selects silicate board;The mode of metal keel frame and light flame-retardant filling layer is combined to build core support layer, and the metal keel frame is composed of main keel and secondary keel, and the secondary keel is welded in main keel to form stable frame structure;Multi-level flame-retardant material combination improves the flame-retardant effect of building template from different levels and angles, and greatly reduces the safety risk when encountering high temperature or long time burning.

Description

Technical Field

[0001] This utility model relates to the technical field of template structures, and in particular to a flame-retardant building template. Background Technology

[0002] The building formwork structure currently widely used in the market is relatively simple, mainly consisting of a basic support layer and flame-retardant layers on both sides. This structure has certain limitations in providing support and flame-retardant functions.

[0003] First, the basic support layer has a relatively simple structure, resulting in poor overall structural stability and an inability to effectively withstand the loads generated during construction. Especially in high-rise buildings or complex structures, structural instability can become a safety hazard during construction.

[0004] Secondly, while existing flame-retardant layers can provide a certain degree of flame retardancy, they are expensive and can only prevent the rapid spread of flames to a certain extent. Once exposed to high temperatures or prolonged burning, there will still be safety risks. Utility Model Content

[0005] The purpose of this utility model is to provide a flame-retardant building formwork to solve the technical problems of insufficient formwork support stability and flame-retardant effect, and to further improve and perfect the existing building formwork in terms of structural stability and flame-retardant performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flame-retardant building formwork includes: a core support layer, a base material layer, a flame-retardant layer, and a formwork surface, wherein the base material layer, the flame-retardant layer, and the formwork surface are sequentially arranged inside and outside on both sides of the core support layer;

[0008] The core support layer includes a metal keel frame and a lightweight flame-retardant filling layer, with the lightweight flame-retardant filling layer filling the metal keel frame.

[0009] The metal keel frame includes a main keel and a secondary keel, with the secondary keel welded inside the main keel;

[0010] The flame-retardant layer is made of silicate board.

[0011] Furthermore, the main keel body has a rectangular structure, and each of the four sides of the main keel extends into a rectangular structure with extension bones.

[0012] Furthermore, the secondary keel is arranged in a grid structure within the rectangular frame of the main keel, with the spacing between adjacent parallel secondary keels being 100mm-300mm. The width of the secondary keel is half the width of the main keel, and the main keel and secondary keel have the same height.

[0013] Furthermore, the main keel and secondary keel are made of cold-rolled galvanized square tubing or aluminum alloy profiles.

[0014] Furthermore, the lightweight flame-retardant filler layer is made of expanded perlite powder, with a filling density of 60-100 kg / m³. 3 .

[0015] Furthermore, the substrate layer is made of glass fiber reinforced plastic with a thickness of 2mm-6mm.

[0016] Furthermore, the flame-retardant layer has a thickness of 8mm-12mm, and the template surface is made of fireproof wood board with a thickness of 2mm-4mm.

[0017] Furthermore, the core support layer, substrate layer, flame retardant layer, and template surface are surrounded by a template enclosure with a thickness of 1mm.

[0018] The beneficial effects of this utility model are:

[0019] Enhanced Structural Stability: The core support layer is constructed by combining a metal keel frame with a lightweight flame-retardant filling layer. The metal keel frame consists of main keels and secondary keels. The secondary keels are welded inside the main keels to form a stable frame structure. The main keel is rectangular in shape and has extension bones, which increases the contact area with the surrounding structure and the connection stability. The secondary keels are arranged in a grid structure within the rectangular frame of the main keels. The spacing between adjacent parallel secondary keels is reasonable (100mm-300mm), and the width of the secondary keels is half the width of the main keels. The main keels and secondary keels are the same height. This meticulous design allows the entire metal keel frame to evenly distribute the load generated during construction, effectively improving the overall structural stability. Especially in the construction of high-rise buildings or complex structures, it can significantly reduce the safety hazards caused by structural instability.

[0020] Enhanced flame retardant performance: The flame retardant layer uses silicate board, which itself has excellent flame retardant properties and can effectively prevent the spread of flames. Meanwhile, the lightweight flame retardant filler layer in the core support layer uses expanded perlite powder, with a filling density controlled at 60-100 kg / m³. 3 Expanded perlite powder not only has flame-retardant properties, but it can also expand at high temperatures to form a heat insulation layer, further preventing heat transfer. The base material layer is made of glass fiber reinforced plastic, which also has a certain degree of flame retardancy. The template surface is made of fireproof wood board. The combination of multi-layer flame-retardant materials improves the flame-retardant effect of building templates from different levels and angles, greatly reducing the safety risks when exposed to high temperatures or prolonged combustion.

[0021] The thickness of the flame-retardant layer is set at 8mm-12mm. This thickness range has been optimized to ensure that the flame-retardant layer can fully exert its flame-retardant function and effectively prevent the spread of flames and heat, while avoiding an increase in the overall weight and cost of the template due to excessive thickness. A good balance has been achieved between flame-retardant performance and practicality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the core support layer structure of this utility model.

[0025] Legend:

[0026] 1. Core support layer; 11. Metal keel frame; 111. Main keel; 112. Secondary keel; 113. Extension keel; 12. Lightweight flame-retardant filling layer;

[0027] 2. Substrate layer;

[0028] 3. Flame-retardant layer;

[0029] 4. Template surface;

[0030] 5. Template enclosure. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Example:

[0033] like Figures 1 to 3 As shown, a flame-retardant building formwork adopts a multi-layer composite structure. This structural design cleverly combines the characteristics of different materials to meet the requirements of formwork strength, flame retardancy and durability in building construction. The formwork consists of a core support layer 1, a base material layer 2, a flame-retardant layer 3, a formwork surface 4 and an outer formwork enclosure 5. The base material layer 2, the flame-retardant layer 3 and the formwork surface 4 are arranged on both sides of the core support layer 1 in sequence, forming an organic whole.

[0034] The core support layer 1 is the skeleton of the entire template, providing the main load-bearing capacity for the template. It consists of a metal keel frame 11 and a lightweight flame-retardant filling layer 12.

[0035] It also includes: a metal keel frame 11, which is composed of a main keel 111 and a secondary keel 112;

[0036] Main keel 111: The main keel 111 has a rectangular structure, which provides high structural stability and can withstand large loads. Each of its four sides extends into a rectangular structure with extension ribs 113. The design of the extension ribs 113 increases the contact area between the main keel 111 and the surrounding structure, allowing for better connection and fixation with other components during formwork installation and use, thus enhancing overall stability. For example, when connecting to a fixed mounting surface, the extension ribs 113 provide more reliable bonding or fixing points, and are located close to the edges.

[0037] Secondary keel 112: The secondary keel 112 is set in a grid structure within the rectangular frame of the main keel 111. The spacing between adjacent parallel secondary keels 112 is controlled between 100mm and 300mm. This spacing range is carefully designed. If the spacing is too small, it will increase the weight and cost of the metal keel frame 11 and also cause inconvenience to construction. If the spacing is too large, it will affect the load-bearing capacity and overall stability of the formwork. The width of the secondary keel 112 is half the width of the main keel 111. The main keel 111 and the secondary keel 112 have the same height. This proportional design allows the metal keel frame 11 to evenly distribute stress when bearing load, avoiding local stress concentration that could lead to structural damage.

[0038] Material selection: The main keel 111 and secondary keel 112 are made of cold-rolled galvanized square tubes or aluminum alloy profiles. Cold-rolled galvanized square tubes have high strength and hardness and can withstand greater external forces. Aluminum alloy profiles have the advantages of being lightweight, corrosion-resistant, and easy to process. In some cases where there are strict requirements for the weight of the template or high requirements for corrosion resistance, aluminum alloy profiles are a better choice.

[0039] It also includes a lightweight flame-retardant filler layer 12

[0040] The lightweight flame-retardant filling layer 12 is filled inside the metal keel frame 11. Expanded perlite powder is selected as the filling material, and the filling density is controlled at 60-100 kg / m³. 3Expanded perlite powder is a natural inorganic material with properties such as light weight, porosity, heat insulation, and flame retardancy. Its light weight will not add too much burden to the metal keel frame 11, while its porous structure gives it good heat insulation performance, effectively preventing heat transfer. In the event of a fire, the expanded perlite powder will rapidly expand to form a heat insulation layer, further preventing the spread of flames and providing reliable flame retardant protection for the template. The control of the filling density is to ensure that the expanded perlite powder is filled evenly and densely within the metal keel frame 11, so that the flame retardant and heat insulation effects are not affected by the filling being too loose, nor is the weight of the template increased by the filling being too tight.

[0041] The substrate layer 2 is made of glass fiber reinforced plastic (GFRP), with a thickness of 2mm-6mm. GFRP is a composite material composed of glass fiber and resin. Glass fiber possesses high strength and high modulus, providing excellent mechanical properties for the substrate layer 2; the resin acts as a binder for the glass fiber, giving the substrate layer 2 good integrity and corrosion resistance. The substrate layer 2 is positioned between the core support layer 1 and the flame-retardant layer 3, serving as a connection and transition. It bonds tightly to the core support layer 1, evenly transferring the load borne by the core support layer 1 to the flame-retardant layer 3. Simultaneously, its excellent corrosion resistance prevents moisture, chemicals, and other external substances from eroding the core support layer 1 and the flame-retardant layer 3, extending the service life of the formwork.

[0042] The flame-retardant layer 3 uses silicate board with a thickness of 8mm-12mm. Silicate board is a high-quality flame-retardant material with advantages such as non-combustibility, high temperature resistance, sound absorption and heat insulation. Within this thickness range, silicate board can fully exert its flame-retardant properties and effectively prevent the spread of flames. When a fire occurs, silicate board will not burn or produce toxic or harmful gases, which can buy more escape time for construction workers. At the same time, its sound absorption and heat insulation properties can reduce noise and heat transfer at the fire scene and reduce the harm of fire to the surrounding environment and people.

[0043] The template surface 4 is made of fire-resistant wood board with a thickness of 2mm-4mm. The board is treated with fire retardant. The fire-resistant wood board not only has a certain strength and rigidity, which can meet the requirements of flatness and load-bearing capacity of the template surface in construction, but its fire resistance can also work together with the flame-retardant layer 3 to further enhance the overall flame-retardant effect of the template. In addition, the surface of the fire-resistant wood board is smooth, which facilitates concrete pouring and demolding, can ensure the surface quality of concrete components, reduce subsequent plastering and other processes, and improve construction efficiency.

[0044] The core support layer 1, the base material layer 2, the flame retardant layer 3, and the template surface 4 are all surrounded by a 1mm thick template enclosure 5. The template enclosure 5 acts like a protective shell, tightly wrapping the internal structural layers together to prevent damage from collisions, scratches, etc. during transportation, installation, and use, thus maintaining the overall integrity and stability of the template. At the same time, it also provides some dust and water protection, reducing the impact of external factors on the internal structure of the template and extending its service life.

[0045] In summary, this flame-retardant building formwork adopts a multi-layer composite structure, consisting of a core support layer 1, a base material layer 2, a flame-retardant layer 3, a formwork surface 4, and an outer formwork 5 enclosure. The core support layer 1 is the skeleton, composed of a metal keel frame 11 (including main and secondary keels 112) and a lightweight flame-retardant filling layer 12. The main and secondary keels 112 can be made of cold-rolled galvanized square tubing or aluminum alloy profiles. The lightweight flame-retardant filling layer 12 is filled with expanded perlite powder. The base material layer 2 is made of glass fiber reinforced plastic. The flame-retardant layer is made of silicate board 3. The formwork surface 4 is made of fire-retardant wood board treated with fire retardant. The outer formwork 5 enclosure is 1mm thick. Each layer combines different material properties to meet the requirements of building construction for strength, flame retardancy, and durability, thus extending the service life of the formwork.

[0046] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0047] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A flame-retardant building formwork, characterized in that, include: The core support layer (1), the substrate layer (2), the flame retardant layer (3) and the template surface (4) are arranged sequentially on both sides of the core support layer (1); The core support layer (1) includes a metal keel frame (11) and a lightweight flame-retardant filling layer (12), wherein the lightweight flame-retardant filling layer (12) is filled inside the metal keel frame (11); The metal keel frame (11) includes a main keel (111) and a secondary keel (112), wherein the secondary keel (112) is welded inside the main keel (111); The flame-retardant layer (3) is made of silicate board.

2. The flame-retardant building formwork as described in claim 1, characterized in that, The main keel (111) has a rectangular structure, and the four sides of the main keel (111) extend into rectangular structures with extension bones (113).

3. The flame-retardant building formwork as described in claim 1, characterized in that, The secondary keel (112) is arranged in a grid structure within the rectangular frame of the main keel (111). The spacing between adjacent parallel secondary keels (112) is 100mm-300mm. The width of the secondary keel (112) is half the width of the main keel (111). The main keel (111) and the secondary keel (112) have the same height.

4. A flame-retardant building formwork as described in claim 2, characterized in that, The main keel (111) and secondary keel (112) are made of cold-rolled galvanized square tubes or aluminum alloy profiles.

5. A flame-retardant building formwork as described in claim 1, characterized in that, The lightweight flame-retardant filler layer (12) is made of expanded perlite powder with a filling density of 60-100 kg / m³. 3 .

6. A flame-retardant building formwork as described in claim 1, characterized in that, The substrate layer (2) is made of glass fiber reinforced plastic with a thickness of 2mm-6mm.

7. A flame-retardant building formwork as described in claim 1, characterized in that, The flame-retardant layer (3) has a thickness of 8mm-12mm, and the template surface (4) is made of fireproof wood board with a thickness of 2mm-4mm.

8. A flame-retardant building formwork as described in claim 1, characterized in that, The core support layer (1), substrate layer (2), flame retardant layer (3) and template surface (4) are surrounded by a template enclosure (5) with a thickness of 1mm.

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