Fireproof, moistureproof and anti-impact steel door

Abstract

The utility model relates to the field of building doors and windows discloses a kind of fireproof and moistureproof anti-impact steel door, comprising: door frame and door body, the door frame and door body are provided with a kind of fireproof and moistureproof anti-impact mechanism;The fireproof and moistureproof anti-impact mechanism includes surface decorative steel sheet, aluminum alloy anti-collision honeycomb, 2mm anti-collision framework, aerogel felt and expansion fireproof sealing element;The door frame and door body are all using surface decorative steel sheet, the aluminum alloy anti-collision honeycomb is arranged in the inside of surface decorative steel sheet, the 5mm anti-collision framework is arranged in the inside of aluminum alloy anti-collision honeycomb, the aerogel felt is arranged in the inside of 5mm anti-collision framework, the expansion fireproof sealing element is arranged between the door frame and door body, heavy-duty hinge is installed between the door frame and door body, and damping buffer pad is arranged in the inside of heavy-duty hinge.The utility model has the following advantages and effects:the fireproof and moistureproof anti-impact performance of steel door can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of building door and window technology, and in particular to a fireproof, moisture-proof and impact-resistant steel door. Background Technology

[0002] Steel doors, due to their high strength and long service life, are widely used in evacuation routes, machine rooms, basements, factories, and other scenarios in building construction. Their performance is directly related to personnel safety and property protection. With the continuous improvement of building safety standards, higher requirements are being placed on the comprehensive performance of steel doors, such as fire resistance, moisture resistance, and impact resistance. However, existing steel doors still have many technical shortcomings in practical applications.

[0003] Traditional steel doors, while using steel plates as the main material, have significant fire-resistant design flaws: insufficient sealing between the door body and frame allows flames and high-temperature smoke to easily spread through these gaps during a fire; the lack of efficient heat insulation materials inside the door allows heat to be quickly conducted to the unexposed side, causing the door to lose its protective function within a short time; some steel doors use seals that are prone to melting and failure at high temperatures, failing to meet the fire resistance requirements of high-rise buildings or densely populated areas, and thus failing to effectively ensure the evacuation of personnel and the safety of property during a fire. The four corners of the door frame are stress concentration areas, easily deformed and cracked when subjected to external impacts (such as collisions during cargo handling or impacts in emergencies); the lack of a rigid supporting frame inside the door, often using a single steel plate or a simple filling structure, makes it prone to localized dents after impact, affecting the door's sealing and opening / closing functions. Therefore, a fire-resistant, moisture-proof, and impact-resistant steel door is needed to address these problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a fireproof, moisture-proof, and impact-resistant steel door to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fireproof, moisture-proof, and impact-resistant steel door, comprising:

[0007] A door frame and a door body, wherein the door frame and door body are provided with a fireproof, moisture-proof and impact-resistant mechanism;

[0008] The fireproof, moisture-proof and impact-resistant mechanism includes a surface decorative steel plate, an aluminum alloy impact-resistant honeycomb, a 2mm impact-resistant frame, aerogel felt and an inflatable fireproof sealant.

[0009] Both the door frame and the door body are made of surface decorative steel plate. The aluminum alloy anti-collision honeycomb is set inside the surface decorative steel plate. The 5mm anti-collision frame is set inside the aluminum alloy anti-collision honeycomb. The aerogel felt is set inside the 5mm anti-collision frame. The inflatable fireproof seal is set between the door frame and the door body.

[0010] A further feature of this invention is that a heavy-duty hinge is installed between the door frame and the door body, and a damping buffer pad is provided inside the heavy-duty hinge.

[0011] A further feature of this invention is that the surface decorative steel plate is a hot-dip galvanized steel plate, and the surface of the hot-dip galvanized steel plate is electrostatically sprayed with epoxy resin powder.

[0012] By adopting the above technical solutions, it is possible to prevent moisture intrusion and resist corrosion from acidic and alkaline substances.

[0013] A further feature of this invention is that the intumescent fireproof seal is made of intumescent graphite-based material.

[0014] A further feature of this invention is that a lock is installed on the door.

[0015] By adopting the above technical solution, it is convenient to fix the door to the door frame.

[0016] A further feature of this invention is that: L-shaped reinforcing ribs are provided at all four corners of the door frame; T-shaped slots are provided on the door frame; T-shaped inserts are fitted into the T-shaped slots; the T-shaped inserts are fixedly connected to the L-shaped reinforcing ribs; fixing screws are threaded onto the L-shaped reinforcing ribs; the fixing screws are screwed to the door frame; and reflective strips are fixedly provided on the L-shaped reinforcing ribs.

[0017] By adopting the above technical solutions, the impact resistance of the door frame can be improved.

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

[0019] This utility model features a fireproof, moisture-proof, and impact-resistant mechanism. When heated in a fire, it expands rapidly dozens of times, forming a dense carbonized layer that tightly fills the gaps in the door, effectively blocking the penetration and spread of flames and high-temperature smoke. The internal aerogel felt, as a highly efficient heat insulation material, significantly reduces heat conduction and enhances fire resistance. A 5mm impact-resistant frame inside the door forms a rigid support frame, which, combined with the honeycomb structure of the aluminum alloy impact-resistant honeycomb, disperses the impact force throughout the entire door, reducing localized deformation. L-shaped reinforcing ribs are installed at the four corners of the door frame, positioned by T-shaped inserts and slots, and reinforced with fixing screws, significantly enhancing the structural strength of the door frame and preventing cracking at the corners or overall deformation upon impact. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of a fireproof, moisture-proof, and impact-resistant steel door proposed in this utility model.

[0022] Figure 2 This is a cross-sectional view of a fireproof, moisture-proof, and impact-resistant steel door proposed in this utility model.

[0023] Figure 3 This is a structural schematic diagram of part of Example 2.

[0024] Figure 4 yes Figure 3 A schematic diagram of the structure of part A.

[0025] In the diagram, 1. Door frame; 2. Door body; 3. Heavy-duty hinge; 4. Lock; 5. Surface decorative steel plate; 6. Aluminum alloy anti-collision honeycomb; 7. 5mm anti-collision frame; 8. Aerogel felt; 9. Expandable fireproof seal; 10. T-slot; 11. T-block; 12. L-shaped reinforcing rib; 13. Fixing screw; 14. Reflective strip. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0027] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] See Figure 1 and Figure 2 This utility model provides a fireproof, moisture-proof, and impact-resistant steel door, comprising:

[0030] The door frame 1 and the door body 2 are equipped with a fireproof, moisture-proof and impact-resistant mechanism.

[0031] The fireproof, moisture-proof and impact-resistant mechanism includes a surface decorative steel plate 5, an aluminum alloy impact-resistant honeycomb 6, a 5mm impact-resistant frame 7, an aerogel felt 8, and an intumescent fireproof sealant 9;

[0032] Both the door frame 1 and the door body 2 are made of surface decorative steel plate 5. Aluminum alloy anti-collision honeycomb 6 is set inside the surface decorative steel plate 5. 5mm anti-collision frame 7 is set inside the aluminum alloy anti-collision honeycomb 6. Aerogel felt 8 is set inside the 5mm anti-collision frame 7. Intumescent fireproof seal 9 is set between the door frame 1 and the door body 2.

[0033] Through the above structure, the 5mm anti-collision frame 7 inside the door 2 forms a rigid support frame. Combined with the honeycomb structure of the aluminum alloy anti-collision honeycomb 6, it can disperse the impact force of external forces to the entire door 2 and reduce local deformation.

[0034] Specifically, a heavy-duty hinge 3 is installed between the door frame 1 and the door body 2. The heavy-duty hinge 3 has a damping buffer pad inside. The surface decorative steel plate 5 is a hot-dip galvanized steel plate. The surface of the hot-dip galvanized steel plate is electrostatically sprayed with epoxy resin powder to achieve good water resistance and corrosion resistance.

[0035] Specifically, the intumescent fireproof seal 9 is made of expanded graphite-based material. It should be noted that expanded graphite-based material is made primarily of expanded graphite, with added binders such as rubber and resin. In a fire, expanded graphite expands rapidly when heated, reaching tens of times its original volume, forming a dense carbonized layer that effectively blocks the spread of flames, heat, and smoke. This material exhibits excellent expansion properties and fire resistance stability.

[0036] Specifically, a lock 4 is installed on the door 2, which locks the door 2 to the door frame 1.

[0037] Example 2

[0038] See Figure 3 and Figure 4 This utility model provides a fireproof, moisture-proof and impact-resistant steel door. L-shaped reinforcing ribs 12 are provided at the four corners of the door frame 1. T-shaped slots 10 are provided on the door frame 1. T-shaped inserts 11 are installed in the T-shaped slots 10. The T-shaped inserts 11 are fixedly connected to the L-shaped reinforcing ribs 12. Fixing screws 13 are threadedly connected to the L-shaped reinforcing ribs 12. The fixing screws 13 are screwed and fixed to the door frame 1. Reflective strips 14 are fixedly provided on the L-shaped reinforcing ribs 12.

[0039] With the above structure, by installing L-shaped reinforcing ribs 12 at the four corners of the door frame 1, the impact resistance of the door frame 1 can be enhanced. When subjected to external impact, the L-shaped reinforcing ribs 12 can disperse the impact force, prevent the door frame 1 from being severely deformed, and ensure the normal use function of the door. Moreover, the L-shaped reinforcing ribs 12 are equipped with reflective strips 14, which can reflect light under nighttime illumination, reducing the probability of collision. In addition, when the L-shaped reinforcing ribs 12 are damaged, they can be easily replaced. The L-shaped reinforcing ribs 12 are installed at the front and rear edges of the door frame 1, which will not affect their disassembly and assembly.

[0040] Working principle:

[0041] S1: The fireproof seal 9 between the door body 2 and the door frame 1 is made of expanded graphite-based material. When heated in a fire, it can expand rapidly by dozens of times to form a dense carbonized layer, which tightly fills the gaps in the door and effectively blocks the penetration and spread of flames and high-temperature smoke. The internal aerogel felt 8 is a highly efficient heat insulation material that can significantly reduce heat conduction and delay the temperature rise of the unexposed side of the door body 2, thus buying time for personnel evacuation and fire fighting and rescue. The surface decorative steel plate 5 is made of hot-dip galvanized steel plate, which is resistant to high temperature and not easily deformed. Combined with the overall structural design, it can meet the requirements of a high level of fire resistance time and provide a solid guarantee for building fire safety.

[0042] S2: The surface decorative steel plate 5 adopts hot-dip galvanizing process and electrostatic spraying of epoxy resin powder to form a double protective layer. It can not only isolate moisture intrusion, but also resist corrosion by acid and alkali and other corrosive substances. Even if used in damp environments such as basements and bathrooms, it is not easy to rust or bulge. The 5mm anti-collision frame 7 inside the door body 2 forms a rigid support frame. Combined with the honeycomb structure of aluminum alloy anti-collision honeycomb 6, it can disperse the impact force of external force to the entire door body 2 and reduce local deformation. L-shaped reinforcing ribs 12 are set at the four corners of the door frame 1. They are positioned by T-shaped inserts 11 and T-shaped slots 10 and reinforced by fixing screws 13. This significantly enhances the structural strength of the door frame 1 and prevents the four corners from cracking or the whole body from deforming when impacted. In addition, the damping buffer pad inside the heavy-duty hinge 3 can alleviate the impact force when opening and closing the door, reduce the collision wear between the door body 2 and the door frame 1, and ensure that it can still maintain good opening and closing performance after long-term use.

[0043] S3: The reflective strip 14 on the L-shaped reinforcing rib 12 can reflect light under nighttime illumination, serving as a warning and reducing the probability of accidental collisions between people or objects and the door 2; the L-shaped reinforcing rib 12 adopts a detachable design, and can be replaced simply by unscrewing the fixing screw 13 after damage, making maintenance convenient and eliminating the need to replace the entire door frame 1; the damping buffer design of the heavy-duty hinge 3 makes the door 2 open and close more smoothly, avoiding noise caused by impact and improving user comfort. The overall structure not only meets the core requirements of fire prevention, moisture prevention, and impact resistance, but also enhances practicality through detailed design, making it suitable for various scenarios such as shopping malls, factories, and residences.

[0044] The above provides a detailed description of a fireproof, moisture-proof, and impact-resistant steel door provided by this utility model. Specific embodiments have been used to illustrate the principles and implementation methods of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A fireproof, moisture-proof, and impact-resistant steel door, characterized in that, include: A door frame (1) and a door body (2) are provided with a fireproof, moisture-proof and impact-resistant mechanism; The fireproof, moisture-proof and impact-resistant mechanism includes a surface decorative steel plate (5), an aluminum alloy impact-resistant honeycomb (6), a 5mm impact-resistant frame (7), an aerogel felt (8), and an inflatable fireproof sealant (9); Both the door frame (1) and the door body (2) are made of surface decorative steel plate (5). The aluminum alloy anti-collision honeycomb (6) is set inside the surface decorative steel plate (5). The 5mm anti-collision frame (7) is set inside the aluminum alloy anti-collision honeycomb (6). The aerogel felt (8) is set inside the 5mm anti-collision frame (7). The inflatable fireproof seal (9) is set between the door frame (1) and the door body (2).

2. The fireproof, moisture-proof, and impact-resistant steel door according to claim 1, characterized in that, A heavy-duty hinge (3) is installed between the door frame (1) and the door body (2), and a damping buffer pad is provided inside the heavy-duty hinge (3).

3. A fireproof, moisture-proof, and impact-resistant steel door according to claim 1, characterized in that, The surface decorative steel plate (5) is a hot-dip galvanized steel plate, and the surface of the hot-dip galvanized steel plate is electrostatically sprayed with epoxy resin powder.

4. A fireproof, moisture-proof, and impact-resistant steel door according to claim 1, characterized in that, The intumescent fireproof seal (9) is made of expanded graphite-based material.

5. A fireproof, moisture-proof, and impact-resistant steel door according to claim 1, characterized in that, The door (2) is equipped with a lock (4).

6. A fireproof, moisture-proof, and impact-resistant steel door according to claim 1, characterized in that, L-shaped reinforcing ribs (12) are provided at the four corners of the door frame (1). T-shaped slots (10) are provided on the door frame (1). T-shaped inserts (11) are installed in the T-shaped slots (10). The T-shaped inserts (11) are fixedly connected to the L-shaped reinforcing ribs (12). Fixing screws (13) are threaded onto the L-shaped reinforcing ribs (12). The fixing screws (13) are screwed and fixed to the door frame (1). Reflective strips (14) are fixedly provided on the L-shaped reinforcing ribs (12).

Images