Aluminum alloy composite fireproof door structure
By using a multi-layered composite structure and aluminum alloy frame design, the problem of traditional fire doors being heavy and having poor fire resistance has been solved, resulting in a lightweight and high-strength fire door with good fire resistance and smoke blocking capabilities.
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MINGHAO DOOR & WINDOW CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional fire doors are made of a single material, resulting in poor fire resistance and heavy weight, which cannot meet modern fire protection requirements.
It adopts a multi-layer composite structure, including, from the inside out, a first aluminum alloy plate layer, a first aluminum honeycomb plate layer, a first galvanized plate layer, a second aluminum honeycomb plate layer, a second galvanized plate layer, a third aluminum honeycomb plate layer, and a second aluminum alloy plate layer. Combined with an aluminum alloy frame and frame, it enhances structural strength and embeds fire-resistant expansion strips to improve fire resistance.
It achieves a lightweight and high-strength fire door structure that can maintain its shape stability during a fire, prevent the spread of smoke, and improve fire resistance.
Smart Images
Figure CN224532571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire doors, specifically to an aluminum alloy composite fire door structure. Background Technology
[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and thermal insulation for a certain period of time. In addition to the functions of ordinary doors, fire doors also prevent the spread of fire and smoke, ensuring the safe evacuation of personnel. Traditional interior doors are usually made of a single material or have a layer of another material sandwiched between two panels. These doors have poor fire resistance and cannot meet fire protection requirements, and they are also relatively heavy. Summary of the Invention
[0003] To address the shortcomings of the existing technology, this utility model provides an aluminum alloy composite fire door structure, which has a multi-layer composite structure and features light weight and good fire resistance.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A composite fireproof aluminum alloy door structure, characterized in that it comprises, from the inside to the outside of the door, a first aluminum alloy plate layer, a first aluminum honeycomb plate layer, a first galvanized plate layer, a second aluminum honeycomb plate layer, a second galvanized plate layer, a third aluminum honeycomb plate layer, and a second aluminum alloy plate layer, wherein the thickness of the second aluminum honeycomb plate layer accounts for half of the total thickness of the door, the thickness of the first aluminum honeycomb plate layer and the third aluminum honeycomb plate layer each accounts for one-fifth of the total thickness of the door, the thickness of the first aluminum alloy plate layer, the second aluminum alloy plate layer, the first galvanized plate layer, and the second galvanized plate layer are equal, and aluminum alloy frames are provided at both ends of the second aluminum honeycomb plate layer.
[0005] Furthermore, the outer end face of the aluminum alloy frame is flush with the end faces of the first aluminum honeycomb panel layer, the first galvanized plate layer, the second galvanized plate layer, and the third aluminum honeycomb panel layer.
[0006] Furthermore, the outer end face of the aluminum alloy frame has a groove, and an aluminum alloy frame is embedded in the groove. The aluminum alloy frame completely covers the first aluminum honeycomb panel layer, the first galvanized plate layer, the second aluminum honeycomb panel layer, the second galvanized plate layer, and the third aluminum honeycomb panel layer. The two ends of the aluminum alloy frame are bent and overlap with the aluminum alloy plate layer and the second aluminum alloy plate layer.
[0007] Furthermore, a fire-resistant expansion strip is embedded in the middle of the outer side of the aluminum alloy frame.
[0008] Furthermore, the first galvanized sheet layer and the second galvanized sheet layer are replaced with stainless steel sheets.
[0009] The beneficial effects of this utility model include: the door structure adopts a multi-layer composite structure, which is lightweight, has high structural strength, and has excellent fire resistance. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A magnified view of a portion of the image. Detailed Implementation
[0011] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0012] One such Figure 1-2 The aluminum alloy composite fire door structure shown includes a first aluminum alloy plate layer 1, a first aluminum honeycomb plate layer 2, a first galvanized plate layer 3, a second aluminum honeycomb plate layer 4, a second galvanized plate layer 5, a third aluminum honeycomb plate layer 6, and a second aluminum alloy plate layer 7 arranged sequentially from the inside to the outside of the door. The thickness of the second aluminum honeycomb plate layer 4 accounts for half of the total thickness of the door, and the thicknesses of the first aluminum honeycomb plate layer 2 and the third aluminum honeycomb plate layer 6 each account for one-fifth of the total thickness of the door. The thicknesses of the first aluminum alloy plate layer 1, the second aluminum alloy plate layer 7, the first galvanized plate layer 3, and the second galvanized plate layer 5 are equal. Both ends of the second aluminum honeycomb plate layer 4 are provided with aluminum alloy frames 8. This structure makes the fire door have high structural strength and light weight, and also has high fire resistance, allowing it to remain undeformed at high temperatures during a fire.
[0013] like Figure 2 As shown, the outer end face of the aluminum alloy frame 8 is flush with the end faces of the first aluminum honeycomb panel layer 2, the first galvanized sheet layer 3, the second galvanized sheet layer 5, and the third aluminum honeycomb panel layer 6. The outer end face of the aluminum alloy frame 8 has a groove into which an aluminum alloy frame 9 is embedded. The sidewalls of the groove have raised ribs, and the raised portion of the aluminum alloy frame 9 inserted into the groove also has raised ribs on both sides. The aluminum alloy frame 9 completely covers the first aluminum honeycomb panel layer 2, the first galvanized sheet layer 3, the second aluminum honeycomb panel layer 4, the second galvanized sheet layer 5, and the third aluminum honeycomb panel layer 6. The two ends of the aluminum alloy frame 8 are bent and overlap with the aluminum alloy panel layer 1 and the second aluminum alloy panel layer 7.
[0014] A fire-resistant expansion strip 10 is embedded in the middle of the outer side of the aluminum alloy frame 8. The fire-resistant expansion strip 10 can expand when heated in a high-temperature environment, so that the fire-resistant expansion strip 10 expands when heated in the event of a fire, thereby sealing with the door frame and reducing the amount of smoke entering the room.
[0015] To enhance structural strength and improve door durability, the first galvanized sheet layer 3 and the second galvanized sheet layer 5 in this embodiment are replaced with stainless steel sheets.
[0016] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. An aluminum alloy composite fire door structure, characterized in that: The door comprises a first aluminum alloy plate layer (1), a first aluminum honeycomb plate layer (2), a first galvanized plate layer (3), a second aluminum honeycomb plate layer (4), a second galvanized plate layer (5), a third aluminum honeycomb plate layer (6), and a second aluminum alloy plate layer (7), arranged sequentially from the inside to the outside of the door. The thickness of the second aluminum honeycomb plate layer (4) accounts for half of the total thickness of the door. The thicknesses of the first aluminum honeycomb plate layer (2) and the third aluminum honeycomb plate layer (6) each account for one-fifth of the total thickness of the door. The thicknesses of the first aluminum alloy plate layer (1), the second aluminum alloy plate layer (7), the first galvanized plate layer (3), and the second galvanized plate layer (5) are equal. Both ends of the second aluminum honeycomb plate layer (4) are provided with aluminum alloy frames (8).
2. The aluminum alloy composite fire door structure according to claim 1, characterized in that: The outer end face of the aluminum alloy frame (8) is flush with the end faces of the first aluminum honeycomb plate layer (2), the first galvanized plate layer (3), the second galvanized plate layer (5), and the third aluminum honeycomb plate layer (6).
3. The aluminum alloy composite fire door structure according to claim 1, characterized in that: The outer end face of the aluminum alloy frame (8) has a groove, and an aluminum alloy frame (9) is embedded in the groove. The aluminum alloy frame (9) completely covers the first aluminum honeycomb plate layer (2), the first galvanized plate layer (3), the second aluminum honeycomb plate layer (4), the second galvanized plate layer (5), and the third aluminum honeycomb plate layer (6). The two ends of the aluminum alloy frame (9) are bent and overlap with the aluminum alloy plate layer (1) and the second aluminum alloy plate layer (7).
4. The aluminum alloy composite fire door structure according to claim 3, characterized in that: A fireproof expansion strip (10) is embedded in the middle of the outer side of the aluminum alloy frame (9).
5. The aluminum alloy composite fire door structure according to claim 1, characterized in that: The first galvanized sheet layer (3) and the second galvanized sheet layer (5) are replaced with stainless steel sheets.