Flame-retardant fly ash filled door and window auxiliary frame
By using fly ash-based flame retardant to fill the structure of door and window subframes, the supporting strength is enhanced and the fire resistance is improved, solving the problem of easy deformation of existing door and window subframes at high temperatures, and achieving higher safety and stability.
Patent Information
- Application Number
- CN202423193986.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing door and window frames have poor fire resistance and flame retardancy, making them prone to deformation at high temperatures and posing a safety risk of doors and windows falling, especially in high-rise buildings where their safety is insufficient.
The structure is filled with fly ash-based flame retardant. The main partition, secondary partition and inclined support plate enhance the support strength, and fly ash-based flame retardant is injected into the filling cavity to improve fire resistance and flame retardancy.
It enhances the support stability and fire resistance of the frame strips, prevents deformation at high temperatures, and improves safety in use.
Smart Images

Figure CN223621440U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building door and window technology, and in particular to a flame-retardant fly ash-filled door and window subframe. Background Technology
[0002] A door and window subframe, also known as a secondary frame, is an additional frame installed on the outside of the door and window frame. It is used to connect with the building wall and mainly serves to enhance the window's sealing, waterproofing, and decorative effects.
[0003] Existing door and window subframes have poor fire resistance and flame retardancy. When exposed to high temperatures, the subframes will deform in a short time and will be unable to stably support the doors and windows. Especially for high-rise buildings, the doors and windows are prone to falling after the subframes are deformed by heat, resulting in insufficient safety.
[0004] To address these issues, we propose a flame-retardant fly ash-filled door and window subframe. Utility Model Content
[0005] The purpose of this utility model is to provide a flame-retardant fly ash-filled door and window subframe to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A flame-retardant fly ash-filled door and window subframe includes a frame strip. A main partition is provided in the center of the frame strip. The main partition divides the inner cavity of the frame strip into two through slots. Several secondary partitions are provided in each through slot. A filling cavity is formed between adjacent secondary partitions. An inclined support plate is installed in the filling cavity. The inclined support plate has perforations on its surface. A filling channel is provided in the main partition, and a filling hole communicating with the filling cavity is provided on the filling channel.
[0008] In a further embodiment, one end of the filling channel penetrates one end face of the main partition, and the port of the filling channel adopts a flared open structure.
[0009] In a further embodiment, the filling holes are staggered on both sides of the filling channel.
[0010] In a further embodiment, the secondary partition is perpendicular to the main partition, and the secondary partitions on both sides of the main partition are symmetrically distributed.
[0011] In a further embodiment, the inclined support plate is supported between two opposite corners of the filling cavity, and the inclined support plates on both sides of the same partition plate cross each other for support, and the inclined support plates are symmetrically distributed about both sides of the main partition plate.
[0012] In a further embodiment, the filling cavity is filled with a fly ash-based flame retardant.
[0013] In a further embodiment, the lower surface of the frame strip is uniformly provided with a plurality of protruding ridges, and a groove is formed between adjacent protruding ridges.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention effectively enhances the support strength of the frame strip by setting a main partition, a secondary partition, and an inclined support plate. At the same time, by injecting a fly ash-based flame retardant into the filling cavity, the fire resistance and flame retardancy of the frame strip are enhanced, making the frame strip less prone to deformation when subjected to high temperatures for a long time, thus maintaining good support stability and making it safer to use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the upper part of this utility model after cross-section;
[0018] Figure 3 This is a schematic diagram of the connection structure between the secondary partition and the inclined support plate of this utility model;
[0019] Figure 4 This is a top view of the structure of this utility model after the upper part has been cut off and the oblique support plate has been removed;
[0020] Figure 5 This is a schematic diagram of the end structure of the frame strip of this utility model.
[0021] In the diagram: 1. Frame strip; 11. Raised rib; 12. Groove; 2. Main partition plate; 21. Filling channel; 22. Filling hole; 3. Through groove; 4. Secondary partition plate; 5. Filling cavity; 6. Slanted support plate; 61. Perforation. Detailed Implementation
[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "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. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0023] 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; 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.
[0024] 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.
[0025] Please see Figure 1-5 A flame-retardant fly ash-filled door and window subframe includes a frame strip 1. A main partition 2 is provided in the center of the frame strip 1. The main partition 2 divides the inner cavity of the frame strip 1 into two through grooves 3. The two through grooves 3 pass through the frame strip 1 from front to back. Each through groove 3 is provided with several secondary partitions 4. The secondary partitions 4 are perpendicular to the main partition 2, and the secondary partitions 4 on both sides of the main partition 2 are symmetrically distributed. The secondary partitions 4 and the main partition 2 enhance the supporting strength of the frame strip 1.
[0026] A filling cavity 5 is formed between adjacent sub-partitions 4. An inclined support plate 6 is installed in the filling cavity 5. The inclined support plate 6 is supported between two opposite corners of the filling cavity 5. The inclined support plates 6 on both sides of the same sub-partition 4 cross each other and are symmetrically distributed about the two sides of the main partition 2. This allows the two inclined support plates 6 in the same position of the filling cavity 5 in the two through slots 3 to move closer to the main partition 2 and be supported at the upper corner of the main partition 2 and the frame strip 1. The two inclined support plates 6 in the filling cavity 5 of the next layer can open outward and be supported at the lower corner of the main partition 2 and the frame strip 1, further improving the support strength of the frame strip 1 and making it less prone to deformation.
[0027] A filling channel 21 is provided inside the main partition 2. One end of the filling channel 21 penetrates one end face of the main partition 2, and the end of the filling channel 21 adopts a funnel-shaped open structure to facilitate connection with the fly ash-based flame retardant inlet pipe through the funnel-shaped open end, thereby squeezing the fly ash-based flame retardant into the filling channel 21. A filling hole 22 is provided on the filling channel 21 to communicate with the filling cavity 5. After passing through the filling hole 22, the fly ash-based flame retardant is injected into the filling cavity 5, which improves the fire resistance and flame retardancy of the entire frame 1 and makes it less prone to deformation when heated. The filling holes 22 are staggered on both sides of the filling channel 21, so that the filling cavities 5 in the same through groove 3 are filled at intervals, while the filling cavities 5 in the two through grooves 3 are filled at staggered intervals, which helps to improve the flame retardancy while reducing the self-weight of the subframe. At the same time, in order to improve the filling effect, a perforation 61 is provided on the surface of the inclined support plate 6 to facilitate the fly ash-based flame retardant to pass through the perforation 61 and be fully spread inside the filling cavity 5.
[0028] The lower surface of the frame strip 1 is uniformly provided with several protruding ridges 11, which further enhance the strength of the frame strip 1. The grooves 12 formed between adjacent protruding ridges 11 make the lower surface of the frame strip 1 rougher, which can effectively increase the contact surface of plaster or concrete, increase the contact area, and make the contact more firm.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A flame-retardant fly ash-filled door and window subframe, comprising frame strips (1), characterized in that: The frame (1) has a main partition (2) at its center. The main partition (2) divides the inner cavity of the frame (1) into two through slots (3). Each through slot (3) has several secondary partitions (4). A filling cavity (5) is formed between adjacent secondary partitions (4). An inclined support plate (6) is installed in the filling cavity (5). A perforation (61) is opened on the surface of the inclined support plate (6). A filling channel (21) is opened in the main partition (2). A filling hole (22) connected to the filling cavity (5) is opened on the filling channel (21).
2. The flame-retardant fly ash-filled door and window subframe according to claim 1, characterized in that: One end of the filling channel (21) penetrates one end face of the main partition (2), and the port of the filling channel (21) adopts a horn-shaped open structure.
3. The flame-retardant fly ash-filled door and window subframe according to claim 1, characterized in that: The filling holes (22) are staggered on both sides of the filling channel (21).
4. The flame-retardant fly ash-filled door and window subframe according to claim 1, characterized in that: The secondary partition (4) is perpendicular to the main partition (2), and the secondary partitions (4) on both sides of the main partition (2) are symmetrically distributed.
5. A flame-retardant fly ash-filled door and window subframe according to claim 1, characterized in that: The inclined support plate (6) is supported between two opposite corners of the filling cavity (5). The inclined support plates (6) on both sides of the same partition plate (4) cross each other and are symmetrically distributed about the two sides of the main partition plate (2).
6. A flame-retardant fly ash-filled door and window subframe according to claim 1, characterized in that: The filling cavity (5) is filled with a fly ash-based flame retardant.
7. A flame-retardant fly ash-filled door and window subframe according to claim 1, characterized in that: The lower surface of the frame strip (1) is uniformly provided with several protruding ridges (11), and a groove (12) is formed between adjacent protruding ridges (11).