Composite light fireproof door core board

Abstract

The utility model discloses a composite light fireproof door core plate, which comprises a core plate framework, light fireproof filler filled in the core plate framework, and a decorative surface layer compounded on the outer surface of the core plate framework, and is characterized in that the core plate framework comprises at least one layer of double-sided honeycomb mesh; the double-sided honeycomb mesh is formed by sequentially splicing integrated double-sided honeycomb mesh single bodies, a reinforced connecting layer is compounded on one side or two sides of the core plate framework, a protective layer is formed on the periphery of the core plate framework after the light fireproof filler is cured, and the decorative surface layer is compounded on the outer side of the protective layer. According to the fireproof door core plate, the impact resistance, the bearing strength and the fire resistance of the fireproof door core plate are improved, meanwhile, the environmental pollution and the installation difficulty are reduced, the performance of a fireproof door is remarkably improved, the service life of the fireproof door is remarkably prolonged, and the fireproof door core plate plays an important role in guaranteeing life and property safety of people.

Description

Technical Field

[0001] The utility model belongs to the technical field of fireproof doors, and in particular relates to a composite light-weight fireproof door core board. Background Art

[0002] As we all know, fire doors play a vital role in fire prevention in buildings. They are widely used in many fields such as residential houses, buildings, factories, mechanical engineering, etc. The performance of the fire door core board, as its core component, directly affects the fire prevention effect and service life of the fire door. However, there are some problems and shortcomings in the core board of indoor fire doors, which are mainly manifested in the following aspects:

[0003] Poor impact resistance: Since the core panels of indoor fire doors usually use paper honeycombs or aluminum honeycombs as skeleton materials, these materials have weak impact resistance. When facing external impacts, they are prone to deformation and fracture, resulting in a decrease in the stability of the overall structure of the fire door.

[0004] Poor bearing strength: Some indoor fire doors use a single-layer honeycomb structure as the core board, which has limited bearing capacity. When facing high pressure or long-term use, the bearing strength of the single-layer honeycomb may not meet the requirements, resulting in deformation, sinking and other problems of the fire door.

[0005] Fire resistance does not meet the standard: Although fire doors have certain fire resistance, the fire resistance of the core board still needs to be further improved. Some core board materials are easy to decompose, melt or release toxic gases in high temperature environments, which not only affects the fire protection effect, but also may pose a threat to personnel safety.

[0006] Insufficient environmental performance: Adhesives and other materials used in traditional fire-resistant door core panels may contain harmful substances such as formaldehyde, which have a certain impact on the environment and human health. With the improvement of environmental awareness, the requirements for environmental performance are also getting higher and higher.

[0007] In summary, the current problems with the core panels of indoor fire doors are mainly concentrated in terms of impact resistance, bearing strength, fire resistance, environmental protection and installation technology. These problems not only affect the performance and service life of fire doors, but may also pose a potential threat to people's lives and property. Therefore, it is an urgent problem to develop new fire door core panel materials, improve the impact resistance, bearing strength and fire resistance of fire door core panels, and reduce environmental pollution and installation difficulty. Utility Model Content

[0008] In view of the problems existing in the prior art, the utility model provides a composite light-weight fireproof door core board which has high impact resistance, load-bearing strength and fire resistance, reduces environmental pollution and is easy to install.

[0009] The utility model is implemented as follows: a composite lightweight fireproof door core board includes a core board frame, a lightweight fireproof filler filled in the core board frame, and a decorative surface layer compounded on the outer surface of the core board frame, characterized in that: the core board frame includes at least one layer of double-sided honeycomb mesh, the double-sided honeycomb mesh is formed by sequentially splicing one-piece double-sided honeycomb mesh monomers, a reinforcing connection layer is compounded on one side or both sides of the core board frame, after the lightweight fireproof filler is cured, a protective layer is formed around the core board frame, and the decorative surface layer is compounded on the outside of the protective layer.

[0010] Further preferably, the double-sided honeycomb mesh monomer includes a first honeycomb layer and a second honeycomb layer connected as one body, the first honeycomb layer and the second honeycomb layer are integrally formed; the center of each honeycomb layer of the first honeycomb layer and the second honeycomb layer is staggered, and adjacent honeycombs of the first honeycomb layer and the second honeycomb layer are connected; and splicing parts for splicing adjacent mesh monomers are provided around the mesh monomer.

[0011] Further preferably, at the junction of the first honeycomb layer and the second honeycomb layer, a through reinforcing connection portion is provided at the bottom of each honeycomb of the first honeycomb layer and the second honeycomb layer, and the center of the reinforcing connection portion coincides with the center of the honeycomb.

[0012] Further preferably, the intersection of adjacent honeycombs on the first honeycomb layer and the second honeycomb layer is a cylindrical reinforcement structure.

[0013] Further preferably, reinforcing ribs are provided in each honeycomb of the first honeycomb layer and the second honeycomb layer at the junction of the first honeycomb layer and the second honeycomb layer.

[0014] Further preferably, the reinforcing connection layer is a flexible woven fabric, and the flexible woven fabric is bonded to the surface of the mesh skeleton by adhesive or hot-melt bonding.

[0015] Further preferably, the reinforcing connecting layer is a wire mesh or a monofilament having a melting point greater than a melting point of a mesh monomer.

[0016] Further preferably, a door axis connecting plate is pre-embedded on one side of the core plate frame.

[0017] Further preferably, the door axis connecting plate includes an integrally formed horizontal connecting portion and a vertical implanting portion.

[0018] Further preferably, the lower end of the vertical implant portion is symmetrically provided with inwardly bent buckling portions, and the buckling portions connect two sides of the core plate frame.

[0019] The advantages and technical effects of this utility model: The advantages and technical effects of this utility model patent are mainly reflected in the following aspects:

[0020] Strong impact resistance: Since it uses an integrated double-sided honeycomb mesh as the skeleton, its structural strength is high, which can effectively resist external impact, is not easy to deform or break, and improves the stability of the overall structure of the fire door.

[0021] Strong bearing capacity: The double-sided honeycomb mesh skeleton has a high bearing capacity and can maintain its shape under high pressure or long-term use, avoiding problems such as deformation and sinking of fire doors.

[0022] Excellent fire resistance: The skeleton is filled with lightweight fireproof filler, which has excellent flame retardant and fire resistance, and can remain stable for a long time in high temperature environment, effectively improving the fire resistance of the fire door.

[0023] Easy installation: The setting of the reinforced connection layer makes the core board frame more solid and also facilitates the composite of the decorative surface layer. The entire core board has a simple structure and is easy to process and install.

[0024] Wide scope of application: The composite lightweight fireproof door core board provided by the utility model is not only suitable for various types of fireproof doors, but also can be used in other structural fields requiring higher fire resistance and bearing capacity.

[0025] Strong customizability: The number of layers, honeycomb size and materials of the reinforced connection layer of the double-sided honeycomb mesh can be adjusted according to actual needs to adapt to fire doors of different specifications and uses.

[0026] High cost-effectiveness: The preparation method of the utility model is simple and can be used for large-scale production, thereby reducing manufacturing costs and improving economic benefits.

[0027] To sum up, the utility model improves the impact resistance, bearing strength and fire resistance of the core board of the fire door, reduces environmental pollution and installation difficulty, significantly improves the performance and service life of the fire door, and plays an important role in protecting people's lives and property. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the double-sided honeycomb mesh monomer structure of the utility model;

[0030] Figure 3 yes Figure 2 Enlarged view of part A in the middle;

[0031] Figure 4 This is the right view of the double-sided honeycomb mesh unit;

[0032] Figure 5 It is a schematic diagram of the three-dimensional structure of a double-sided honeycomb mesh monomer;

[0033] In the figure, 10, core board skeleton; 11, lightweight fireproof filler; 12, decorative surface layer; 13, double-sided honeycomb mesh; 130, double-sided honeycomb mesh monomer; 14, reinforced connection layer; 132, protective layer; 133, splicing part; 1331, slot; 1332, claw; 1333, transition connection part; 134, reinforced connection part; 135, reinforcing rib; 15, door axis connection plate; 151, horizontal connection part; 152, vertical implantation part; 153, buckle part. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0035] See also Figures 1 to 5 A composite light fireproof door core board includes a core board skeleton 10, a light fireproof filler 11 filled in the core board skeleton, and the light fireproof filler is preferably a light fireproof and heat-insulating material such as a cement-based material, a gypsum-based material, and a magnesium oxide material; a decorative surface layer 12 composited on the outer surface of the core board skeleton, and the core board skeleton includes at least one layer of double-sided honeycomb mesh 13, and a single layer or multiple layers can be selected according to the thickness of the door panel, and the present embodiment is two sides; when the two layers of honeycomb mesh are made into the core board, the adjacent double-sided honeycomb meshes are fitted and fixed, and the fixing method can be binding, bonding or hot melting; the double-sided honeycomb mesh is formed by sequentially splicing one-piece double-sided honeycomb mesh monomers 130, and the double-sided honeycomb mesh monomers are triangular, square, rectangular or hexagonal or decagonal with a Y-shaped structure. Different shapes adapt to different application scenarios, so that the mesh monomers of the utility model have a wider range of uses. The geometric shape of the mesh monomer is not limited to this, as long as it can be spliced. The size of the mesh monomer depends on the production equipment or application scenario. In this embodiment, the Y-shaped structure is preferably compounded with a reinforcing connection layer 14 on one side or both sides of the core board frame. After the lightweight fire-retardant filler is cured, a protective layer 132 is formed around the core board frame. The thickness of the protective layer is preferably 2-3mm. On the one hand, it prevents the core board frame from being exposed, and on the other hand, it serves as a carrier for the composite decorative surface layer, that is, the decorative surface layer is compounded on the outside of the protective layer.

[0036] Further preferably, the double-sided honeycomb mesh monomer 130 includes a first honeycomb layer 131 and a second honeycomb layer 132 connected as an integral whole, the first honeycomb layer and the second honeycomb layer are integrally formed, and the overall strength and stability of the mesh are improved by connecting the first honeycomb layer and the second honeycomb layer as a whole; the centers of each honeycomb of the first honeycomb layer and the second honeycomb layer are staggered, and the adjacent honeycombs of the first honeycomb layer and the second honeycomb layer are connected, so that the two sides can be connected and the passage of fillers can be utilized to change the problems of cracking and bulging caused by traditional composite bonding; splicing parts 133 for splicing adjacent mesh monomers are provided around the mesh monomer.

[0037] The splicing part can be set in a variety of ways according to the situation. For example, adjacent mesh monomers are connected by connecting sheets, or the connection between the two can be achieved by snap-fitting. In this embodiment, preferably, the splicing part is a splicing stopper, half of the splicing stoppers are continuously arranged on the splicing surface of the first honeycomb layer, and the other half of the splicing stoppers are continuously arranged on the splicing surface of the second honeycomb layer. This design makes the splicing more stable and improves the splicing efficiency; the splicing part is provided with a mutually matching card slot 1331 and a claw 1332, and the claw is inserted into the card slot to form a self-locking, and the lower end of the claw is inclined to insert the guide surface. Through the design of the card slot and the claw, adjacent integrated double-sided honeycomb mesh monomers can be quickly and stably spliced ​​together. In the actual design, considering the particularity of the honeycomb structure, the edge honeycomb is divided into a plate. In order to ensure the strength of the mesh monomer, a transition connection part 1333 is provided at the bottom of the honeycomb to ensure the structural integrity of the mesh monomer as a whole.

[0038] Further preferably, a through reinforcing connection portion 134 is provided at the bottom of each honeycomb of the first honeycomb layer and the second honeycomb layer at the junction of the first honeycomb layer and the second honeycomb layer, and the center of the reinforcing connection portion coincides with the center of the honeycomb, thereby enhancing the connection strength of the honeycomb and further improving the overall impact resistance of the mesh.

[0039] Further preferably, the intersection of adjacent honeycombs on the first honeycomb layer and the second honeycomb layer is a cylindrical reinforcement structure, which increases the strength of the intersection and prevents fracture due to stress concentration.

[0040] Further preferably, a reinforcing rib 135 is provided in each honeycomb of the first honeycomb layer and the second honeycomb layer at the junction of the first honeycomb layer and the second honeycomb layer, thereby increasing the local strength of the mesh and improving the stability of the mesh when subjected to impact.

[0041] Further preferably, the reinforcing connection layer is a flexible braided fabric, which is bonded to the mesh skeleton surface by adhesive or hot melt. Using the flexible braided fabric as the reinforcing connection layer and connecting it to the mesh skeleton surface by adhesive or hot melt increases the overall strength and stability of the skeleton.

[0042] Further preferably, the reinforcing connection layer is a wire mesh or a monofilament having a melting point greater than a melting point of a mesh monomer, thereby ensuring the stability of the reinforcing connection layer.

[0043] Further preferably, a door shaft connecting plate 15 is embedded in one side of the core plate frame. Embedding the door shaft connecting plate in one side of the core plate frame simplifies the installation process and improves the overall stability of the fire door.

[0044] Further preferably, the door axis connecting plate includes an integrally formed horizontal connecting portion 151 and a vertical implanting portion 152. The horizontal connecting portion provides stability in the horizontal direction, and the vertical implanting portion is connected to both sides of the core plate frame through the buckle portion, thereby enhancing the overall rigidity of the frame.

[0045] Further preferably, the lower end of the vertical implant portion is symmetrically provided with an inwardly bent snap-fitting portion 153, which is clamped on both sides of the core panel frame, that is, the snap-fitting portion 153 is inserted into the honeycomb, thereby fixing the core panel frame. After filling and curing, it prevents detachment, improves the tensile strength, and ensures the strength of the door panel installation.

[0046] To sum up, the utility model improves the impact resistance, bearing strength and fire resistance of the core board of the fire door, reduces environmental pollution and installation difficulty, significantly improves the performance and service life of the fire door, and plays an important role in protecting people's lives and property.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite lightweight fireproof door core board, comprising a core board frame, a lightweight fireproof filler filled in the core board frame, and a decorative surface layer composited on the outer surface of the core board frame, characterized in that: The core plate skeleton includes at least one layer of double-sided honeycomb mesh, which is formed by sequentially splicing one-piece double-sided honeycomb mesh monomers. A reinforcing connection layer is compounded on one or both sides of the core plate skeleton. After the lightweight fireproof filler is cured, a protective layer is formed around the core plate skeleton, and the decorative surface layer is compounded on the outside of the protective layer.

2. A composite lightweight fireproof door core board according to claim 1, characterized in that: The double-sided honeycomb mesh monomer includes a first honeycomb layer and a second honeycomb layer connected as one body, wherein the first honeycomb layer and the second honeycomb layer are integrally formed; the centers of each honeycomb cell of the first honeycomb layer and the second honeycomb layer are staggered, and adjacent honeycombs of the first honeycomb layer and the second honeycomb layer are connected; and splicing parts for splicing adjacent mesh monomers are arranged around the mesh monomer.

3. A composite lightweight fireproof door core board according to claim 2, characterized in that: A through reinforcing connection portion is provided at the bottom of each honeycomb cell of the first honeycomb layer and the second honeycomb layer at the junction of the first honeycomb layer and the second honeycomb layer, and the center of the reinforcing connection portion coincides with the center of the honeycomb cell.

4. A composite lightweight fireproof door core board according to claim 2, characterized in that: The intersection of the adjacent honeycombs on the first honeycomb layer and the second honeycomb layer is a cylindrical reinforcement structure.

5. A composite lightweight fireproof door core board according to claim 4, characterized in that: A reinforcing rib is arranged in each honeycomb of the first honeycomb layer and the second honeycomb layer at the junction of the first honeycomb layer and the second honeycomb layer.

6. The composite lightweight fireproof door core board according to claim 1, characterized in that: The reinforcing connection layer is a flexible woven fabric, which is bonded to the surface of the mesh skeleton by adhesive or hot-melt bonding.

7. The composite lightweight fireproof door core board according to claim 1, characterized in that: The reinforcing connection layer is a wire mesh or a monofilament having a melting point greater than that of a single mesh piece.

8. The composite lightweight fireproof door core board according to claim 1, characterized in that: A door axis connecting plate is pre-buried on one side of the core plate frame.

9. The composite lightweight fireproof door core board according to claim 8, characterized in that: The door axis connecting plate includes an integrally formed horizontal connecting portion and a vertical implanting portion.

10. The composite lightweight fireproof door core board according to claim 9, characterized in that: The lower end of the vertical implantation portion is symmetrically provided with inwardly bent buckling portions, and the buckling portions connect two sides of the core plate frame.

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