Fireproof sealing aluminum alloy door and window
By adopting an inner and outer layered frame structure in aluminum alloy doors and windows, and utilizing the composite expansion layer and flame-retardant filling part to expand and deform to fill gaps and generate water vapor to absorb heat during a fire, the problem of smoke spread caused by gaps in aluminum alloy doors and windows is solved, achieving fireproof sealing and smoke suppression effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-07
AI Technical Summary
The gaps between the frames of aluminum alloy doors and windows and the walls become a rapid channel for high-temperature smoke during a fire, causing the fire to spread to the upper floors.
It adopts an inner and outer layered frame structure, including an outer frame, a sandwich layer and a sleeve frame. It utilizes a composite expansion layer and a flame-retardant filling part to expand and deform during a fire, filling the gaps. The composite expansion layer expands and fills the gaps, and the flame-retardant filling part decomposes to generate water vapor to absorb heat and suppress smoke.
It effectively prevents the spread of smoke and fire, and inhibits the spread of smoke by absorbing heat and cooling down, thus achieving a dual fire protection effect.
Smart Images

Figure CN224093295U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of door and window structure technology, and in particular relates to a fireproof and sealed aluminum alloy door and window. Background Technology
[0002] Aluminum alloy doors and windows are building doors and windows made of aluminum alloy extruded profiles as the core material. Their main structures, such as frames, mullions, and sashes, are all made of aluminum alloy profiles and are widely used in residential balcony enclosures, commercial building curtain walls, and other scenarios.
[0003] Currently, aluminum alloy doors and windows usually have a certain gap between the frame and the wall. This means that in the event of a fire, the gap can become a rapid channel for high-temperature smoke. The pressure difference between the inside and outside of the fire causes the dense smoke to flow vertically along the gap, causing the fire to spread to the upper floors.
[0004] To address the aforementioned issues, this application proposes a fire-resistant, sealed aluminum alloy door and window. Utility Model Content
[0005] The purpose of this utility model is to provide a fireproof and airtight aluminum alloy door and window, which solves the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is a fireproof and sealed aluminum alloy door and window, including an inner frame and glass inside it, and an outer frame is installed on the outside of the inner frame.
[0008] The outer frame has an inner and outer layered frame structure on the outside, and a pad is provided in the outermost area. The surface of the pad is provided with a composite expansion layer that expands and fills the gaps when heated.
[0009] The frame is filled with flame-retardant material that decomposes to produce water vapor when heated, thus absorbing heat.
[0010] Furthermore, the outer frame has a sandwich layer on its outer side, and its outer surface has two side plates on the left and right.
[0011] Furthermore, the side plate divides the outer side of the interlayer into an inner cavity and two side cavities, left and right.
[0012] Furthermore, the outer side of the interlayer is provided with a sleeve frame, which is a horizontal "H" shaped structure, and the left and right convex plates are inserted into the side cavity of the interlayer.
[0013] Furthermore, the pad and the flame-retardant filler are located inside the outer groove and inner groove of the sleeve frame, respectively.
[0014] Furthermore, the inner side of the pad is provided with expansion balls on the left and right sides.
[0015] Furthermore, the left and right convex plates of the sleeve frame are provided with side holes, and the connecting plate in the middle is provided with air holes.
[0016] This utility model has the following beneficial effects:
[0017] This invention places the pad outside the frame, so that when exposed to high temperatures during a fire, the composite expansion layer on the outer surface expands and deforms, thereby quickly filling the gap between the door / window frame and the wall, thus preventing the rapid spread of smoke and avoiding the fire from spreading directly to adjacent floors.
[0018] In this invention, as the composite expansion layer expands, the expansion ball expands and pushes the pad outward, thereby releasing the seal on the air holes and side holes. At this time, the flame-retardant filling part decomposes under heat, releasing water vapor to absorb heat and suppress smoke, thereby achieving the effect of flame retardancy or even fire extinguishing.
[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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 schematic diagram of the overall appearance structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the door and window of this utility model;
[0023] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the door and window frame of this utility model;
[0024] Figure 4 This is a schematic diagram of the exploded structure of the door and window frame of this utility model;
[0025] The attached diagram lists the components represented by each number as follows:
[0026] In the picture:
[0027] 110. Inner frame; 111. Glass; 120. Outer frame;
[0028] 210. Mezzanine; 211. Side panel;
[0029] 220. Sleeve; 221. Flame-retardant filling; 222. Side hole; 223. Vent;
[0030] 230. Pad; 231. Composite expansion layer; 232. Expansion ball. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.
[0033] Please see Figure 1-4 As shown, this utility model is a fireproof and sealed aluminum alloy door and window, including an inner frame 110 and glass 111 inside it, and an outer frame 120 is installed on the outside of the inner frame 110.
[0034] The outer frame 120 has an inner and outer layered frame structure on the outside. A pad 230 is provided in the outermost area. A composite expansion layer 231 is provided on the surface of the pad 230. When heated, the composite expansion layer 231 is made of graphite-based expansion sealing strip. When exposed to fire, it expands to form a dense carbonized layer to fill the gap.
[0035] The frame is equipped with a flame-retardant filling part 221, which decomposes to generate water vapor when heated to absorb heat. The aluminum hydroxide and magnesium hydroxide are mixed in a 6:4 ratio to generate water vapor that expands when heated and suppresses smoke caused by fire.
[0036] Preferably, the outer frame 120 has a sandwich layer 210 on its outer side, and its outer surface has two side plates 211 on the left and right. The outwardly protruding side plates 211 divide the outer space of the sandwich layer 210 into an inner cavity and two side cavities on the left and right.
[0037] Preferably, the outer side of the interlayer 210 is provided with a sleeve frame 220, which is a horizontal "H" shaped structure, and the left and right convex plates are inserted into the side cavity of the side of the interlayer 210 to form a combined assembly. The connecting plate in the middle of the sleeve frame 220 blocks the inner cavity, making it a hollow structure, thereby housing the flame-retardant filling part 221 inside the inner cavity. The left and right convex plates in the outer area of the sleeve frame 220 form an outer groove for installing the pad 230.
[0038] Preferably, the inner side of the pad 230 is provided with expansion balls 232 on both the left and right sides, which are made of the same material as the composite expansion layer 231. After being heated and expanded, the pad 230 is pushed outward, which can not only increase the expansion and filling effect of the composite expansion layer 231, but also form a hollow structure between the pad 230 and the middle plate of the sleeve 220.
[0039] Preferably, the left and right convex plates of the sleeve frame 220 have side holes 222 inside, and the connecting plate in the middle has air holes 223 inside. The two ends of the air holes are respectively connected to the inner cavity and the outer groove of the sleeve frame 220. When the flame-retardant filling part 221 generates water vapor, it passes through the air holes 223 and the side holes 222 in sequence and overflows outward.
[0040] Understandably, this utility model can adjust the gap between the frame and the wall in a timely manner during a fire to achieve a dynamic sealing effect, thereby preventing the spread of fire caused by smoke transmission. At the same time, it releases water vapor to absorb heat and cool the surrounding air, and inhibits the spread of smoke.
[0041] A specific application of the operation process in this embodiment is as follows: First, the frame of the door and window is changed from a fixed structure to an inner, middle and outer layered assembly structure consisting of an outer frame 120, a mezzanine 210 and a sleeve frame 220, and the pad 230 is inserted into the outer groove of the side hole 222. Then, in the event of a fire, the composite expansion layer 231 on the surface of the outermost pad 230 expands due to heat, thereby deforming to fill the gap between the frame and the wall to prevent the rapid spread of smoke. Then, the expansion and deformation of the expansion ball 232 causes the pad 230 to move outward, thereby releasing the blockage of the side hole 222 and the vent 223. At this time, the flame-retardant filling part 221 in the inner groove of the sleeve frame 220 decomposes due to heat, generating water vapor, which overflows from the vent 223 and the side hole 222 to absorb heat and suppress smoke, thus achieving a flame-retardant effect. The combination of expansion filling and heat absorption flame retardancy can both prevent the spread of fire and reduce the fire intensity, providing a dual protection effect.
[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A fireproof and airtight aluminum alloy door and window, characterized in that: Includes an inner frame (110) and the glass (111) inside it, and an outer frame (120) is installed on the outside of the inner frame (110); The outer frame (120) has an inner and outer layered frame structure on the outside, and a pad (230) is provided in the outermost area. The surface of the pad (230) is provided with a composite expansion layer (231) that expands and fills the gaps when heated. The frame is equipped with a flame-retardant filling part (221) inside, which decomposes to generate water vapor for heat absorption when heated.
2. The fireproof and airtight aluminum alloy door and window according to claim 1, characterized in that: The outer frame (120) has a sandwich layer (210) on its outer side, and its outer surface has two side plates (211) on the left and right sides.
3. A fireproof and airtight aluminum alloy door and window according to claim 2, characterized in that: The side plate (211) divides the outer side of the interlayer (210) into an inner cavity and two side cavities.
4. A fireproof and airtight aluminum alloy door and window according to claim 3, characterized in that: The outer side of the interlayer (210) is provided with a sleeve frame (220), which is a horizontal "H" shaped structure, and the left and right convex plates are inserted into the side cavity of the interlayer (210).
5. A fireproof and airtight aluminum alloy door and window according to claim 4, characterized in that: The pad (230) and the flame-retardant filling part (221) are located inside the outer groove and inner groove of the sleeve frame (220), respectively.
6. A fireproof and airtight aluminum alloy door and window according to claim 1, characterized in that: The inner side of the pad (230) is provided with expansion balls (232) on both the left and right sides.
7. A fireproof and airtight aluminum alloy door and window according to claim 4, characterized in that: The left and right convex plates of the sleeve frame (220) have side holes (222) inside, and the connecting plate in the middle has air holes (223) inside.