Novel fireproof partition door and window structure
Through the sealing design of double-layer fireproof glass and expansion layer, the problem of blocking flame and smoke penetration in fire-resistant partition doors and windows is solved, achieving efficient sealing and low-cost installation and maintenance, and meeting high fire protection standards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN TAIRAN RONGCHANG DECORATION ENG CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-05-26
AI Technical Summary
Existing fireproof partition doors and windows cannot effectively block the penetration of flames, high-temperature gases and toxic fumes in a fire, and are complex to install and costly, making it difficult to meet high fire protection standards.
It adopts a double-layer fireproof glass structure, with outer and inner fireproof expansion layers for sealing. The outer expansion strip expands to seal the gaps, while the inner layer serves as a redundant sealing layer. Combined with rigid rubber strips and screws for fastening, it forms a three-level seal. The modular design supports rapid installation and maintenance.
It effectively blocks the penetration of smoke and flames in a fire, meets the EI120 fire protection standard, reduces installation and maintenance costs, improves construction consistency and flexibility, and supports smart building upgrades.
Smart Images

Figure CN224282433U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of door and window structure technology, and in particular to a novel fireproof partition door and window structure. Background Technology
[0002] Fire-resistant partition doors and windows are a crucial component of building fire protection design. They are mainly used to prevent the spread of fire, isolate high temperatures and smoke, and buy valuable time for personnel evacuation and fire rescue.
[0003] In the prior art, toxic fumes are emitted after a fire and spread through the gaps in doors, windows and frames. Therefore, this application proposes a new type of fireproof partition door and window structure to solve this technical problem. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a new type of fireproof partition door and window structure to solve the technical problems in the background art.
[0005] The above-mentioned objective of this application is achieved through the following technical solution: a novel fireproof partition door and window structure, including a window frame and a door frame, wherein the window frame and the door frame are fixedly connected, a fireproof door is rotatably installed in the door frame, a door lock is fixedly installed on the fireproof door, fireproof glass is installed inside the window frame, a placement groove is opened inside the window frame, a fireproof expansion layer is fixedly connected to the window frame at the edge of the placement groove, and the fireproof glass is installed in the placement groove.
[0006] By adopting the above technical solution, this application solves the technical problem by setting a fire-resistant expansion layer in the placement groove, which rapidly expands to form a dense carbonized layer when exposed to fire, filling the tiny gaps (≤1mm) between the door and window frame and the glass and door panel, blocking the penetration path of flames, high-temperature gases (≥300℃) and toxic fumes, and extending the fire spread time to more than 90 minutes.
[0007] Furthermore, the fireproof glass is provided with rigid rubber strips around its perimeter to protect it, and the rigid rubber strips are fixed around the perimeter of the fireproof glass.
[0008] By adopting the above technical solution, when the fireproof expansion strip expands when heated, the rubber strip converts the concentrated stress into dispersed elastic potential energy through elastic compression, thus preventing the glass edge from cracking due to excessive local stress.
[0009] Furthermore, the window frame has two placement slots, and each placement slot is equipped with fireproof glass and a fireproof expansion layer.
[0010] By adopting the above technical solution, the double-layer structure forms two independent sealing lines: the outer expansion strip expands to seal the gap between the window frame and the glass, while the inner expansion strip serves as a backup sealing layer. Even if the outer layer fails due to localized overheating, the inner layer can still maintain its sealing performance. This redundancy mechanism controls the flue gas leakage to within 0.01m³. 3 / (m 2 Within h), it meets high standards for smoke prevention.
[0011] Furthermore, the upper end of the window frame has a through groove communicating with the placement groove, a stop block is inserted into the through groove, a connecting plate is fixedly installed on the upper end of the stop block, positioning holes are opened around the connecting plate, and a threaded hole with the same position as the positioning hole is provided on the upper end of the window frame, and the connecting plate is connected to the window frame by screws.
[0012] By adopting the above technical solution, when installing fireproof glass into the window frame, it is only necessary to place the fireproof glass into the placement groove of the window frame, then place the abutment block at the bottom of the connecting plate into the through groove, and then install the connecting plate onto the window frame with screws.
[0013] Furthermore, a fireproof expansion strip is fixedly provided at the bottom of the abutment block.
[0014] Furthermore, an extension positioning plate is fixedly provided around the connecting plate.
[0015] By adopting the above technical solution, the extended positioning plate is used to quickly connect the connecting plate and the upper end of the window frame.
[0016] In summary, this application includes the following beneficial technical effects: at room temperature, a three-level protection is formed by elastic sealing with rubber strips, flexible compensation with expansion strips, and mechanical tightening with screws; in a fire, the flexible fireproof expansion layer responds quickly (within minutes); the redundant sealing of the inner layer ensures that the protection level is maintained even in the event of local failure; and it completely blocks the penetration path of smoke and flames, meeting the EI120 fire protection standard for super high-rise buildings.
[0017] The gradient design of the elastic modulus of the rigid rubber strip and the fire-resistant expansion strip can absorb the displacement difference between the glass and the window frame caused by thermal expansion, avoid the risk of cracking caused by edge stress concentration, and significantly improve the structural integrity in high-temperature environments.
[0018] The gap filling design between the bottom expansion strip of the abutment block and the window frame through groove forms a full-dimensional seal from the glass edge to the window frame joint, and the amount of smoke leakage is far below the industry standard, buying critical time for personnel evacuation.
[0019] The physical limiting structure of the extended positioning plate and the window frame groove enables millimeter-level control of the glass verticality and spacing. Single-person operation can complete the rapid positioning of double-layer glass, reducing assembly time by 80% and eliminating the need for professional technicians, thus reducing labor costs.
[0020] The wedge-shaped structure of the abutment block and the guide fit of the window frame through groove ensure precise horizontal alignment. The positioning hole and the threaded hole are automatically aligned, and the screws are tightened in one step, eliminating the repeated debugging in traditional installation and improving construction consistency.
[0021] By conducting self-testing of sealing pressure and fire simulation tests, 100% traceability of installation quality is achieved, avoiding rework due to sealing failure and ensuring project delivery cycle.
[0022] The modular design supports quick assembly and disassembly. Replacing a single pane of glass only requires loosening four screws, without damaging the window frame structure. This reduces maintenance time by 90% and material waste by 65%, significantly lowering long-term operating costs.
[0023] The smart interface reserved on the connection plate can seamlessly integrate temperature-sensing release devices, wireless monitoring modules, etc., without the need for additional drilling or modification, providing a low-cost path for smart building upgrades and extending the product life cycle value.
[0024] The solution is compatible with various window frame materials such as aluminum alloy and steel, avoiding customized development costs due to material differences and improving supply chain flexibility. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure in the embodiment;
[0026] Figure 2 This is a schematic diagram of the window frame structure in the embodiment;
[0027] Figure 3 yes Figure 2 Sectional view along section line AA.
[0028] Reference numerals: 1. Window frame; 10. Through hole; 11. Fireproof glass; 12. Connecting plate; 13. Extension positioning plate; 14. Rigid rubber strip; 15. Fireproof expansion layer; 16. Abutment block; 17. Fireproof expansion strip; 2. Door frame; 21. Fire door; 22. Door lock. Detailed Implementation
[0029] 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.
[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0031] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] Example, refer to Figures 1-3 A novel fire-resistant partition door and window structure includes a window frame 1 and a door frame 2, which are fixedly connected. A fireproof door 21 is rotatably installed in the door frame 2, and a door lock 22 is fixedly installed on the fireproof door 21. Fireproof glass 11 is installed inside the window frame 1, and a placement groove is provided inside the window frame 1. A fire-resistant expansion layer 15 is fixedly connected to the window frame 1 at the edge of the placement groove, and the fireproof glass 11 is installed in the placement groove. In this application, by providing a fire-resistant expansion layer 15 in the placement groove, it rapidly expands upon contact with fire to form a dense carbonized layer, filling the tiny gaps (≤1mm) between the door / window frame 1 and the glass and door panel, blocking the penetration path of flames, high-temperature gases (≥300℃), and toxic fumes, and extending the fire spread time to more than 90 minutes, thereby solving this technical problem. In this application, a fire-resistant expansion layer 15 is also provided around the fire door 21.
[0033] In this embodiment, rigid rubber strips 14 are provided around the fireproof glass 11 to protect it, and the rigid rubber strips 14 are fixed around the fireproof glass 11. When the fireproof expansion strip 17 expands when heated, the rubber strip converts the concentrated stress into dispersed elastic potential energy through elastic compression, preventing the glass edge from cracking due to excessive local stress.
[0034] In this embodiment, there are two placement slots on the window frame 1, and each slot is equipped with fireproof glass 11 and a fireproof expansion layer 15. The double-layer structure forms two independent sealing lines: the outer expansion strip expands to seal the gap between the window frame 1 and the glass, while the inner expansion strip serves as a backup sealing layer; even if the outer layer fails due to localized overheating, the inner layer can still maintain its sealing performance. This redundancy mechanism controls the smoke leakage to within 0.01m³. 3 / (m 2 Within h), it meets high standards for smoke prevention.
[0035] In this embodiment, a through groove communicating with the placement groove is provided at the upper end of the window frame 1. An abutment block 16 is inserted into the through groove, and a connecting plate 12 is fixedly provided at the upper end of the abutment block. Positioning holes are provided around the connecting plate 12. A threaded hole with the same position as the positioning hole is provided at the upper end of the window frame 1. The connecting plate 12 is connected to the window frame 1 by screws. When installing the fireproof glass 11 into the window frame 1, simply place the fireproof glass 11 into the placement groove of the window frame 1, then place the abutment block 16 at the bottom of the connecting plate 12 into the through groove, and then install the connecting plate 12 onto the window frame 1 by screws.
[0036] In this embodiment, a fireproof expansion strip 17 is fixedly installed at the bottom of the abutment block 16. An extension positioning plate 13 is fixedly installed around the connecting plate 12. The extension positioning plate 13 is used to quickly align the connecting plate 12 with the upper end of the window frame 1.
[0037] Specific implementation process: First, the double-layer fireproof glass 11 is embedded into the two placement grooves of the window frame 1. The rigid rubber strips 14 around the glass form an elastic constraint with the groove walls to eliminate installation gaps. The pre-installed flexible fireproof expansion layer 15 forms a finely adjustable contact surface with the glass and window frame 1. Then, the abutment block 16 with the pre-installed fireproof expansion strip 17 at the bottom is inserted into the upper through groove of the window frame 1. Its wedge-shaped structure and the through groove self-guided to achieve precise horizontal alignment when vertically inserted. The extended positioning plates 13 around the connecting plate 12 are embedded into the positioning grooves of the window frame 1, so that the positioning holes and threaded holes automatically... Alignment; then tighten the connecting plate 12 with screws, and apply downward pressure to make the bottom fireproof expansion strip 17 of the abutment block 16 fit tightly against the upper edge of the glass. At the same time, the rigid rubber strip 14 is compressed a second time to form a three-level sealing system: the first level of sealing is achieved by the elastic contact between the rubber strip and the glass / window frame 1, the second level of sealing is strengthened by the flexible compensation of the fireproof expansion strip 17 of the abutment block 16, and the third level of sealing relies on the mechanical compression of the screws; finally, the sealing pressure is ensured to meet the standard through functional self-test, and the response speed of the fireproof expansion layer 15 and the density of the carbonized layer are tested under simulated fire conditions.
[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A novel fire resistant door and window construction, characterized in that, The system includes a window frame (1) and a door frame (2), which are fixedly connected. A fire door (21) is rotatably installed in the door frame (2), and a door lock (22) is fixedly installed on the fire door (21). Fireproof glass (11) is installed inside the window frame (1), and a placement groove is provided inside the window frame (1). A fireproof expansion layer (15) is fixedly connected to the window frame (1) at the edge of the placement groove, and the fireproof glass (11) is installed in the placement groove.
2. A novel fire resistant door and window structure as claimed in claim 1, wherein, The fireproof glass (11) is provided with rigid rubber strips (14) around its perimeter for protection. The rigid rubber strips (14) are fixed around the fireproof glass (11).
3. A novel fire resistant door and window structure as claimed in claim 2, wherein, The window frame (1) has two placement slots, and each placement slot is equipped with fireproof glass (11) and fireproof expansion layer (15).
4. A novel fire resistant door and window structure as claimed in claim 3, wherein, The upper end of the window frame (1) is provided with a through groove that communicates with the placement groove. An abutment block (16) is inserted into the through groove. A connecting plate (12) is fixedly provided on the upper end of the abutment block (16). Positioning holes are provided around the connecting plate (12). A threaded hole with the same position as the positioning hole is provided on the upper end of the window frame (1). The connecting plate (12) is connected to the window frame (1) by screws.
5. A novel fire resistant door and window structure as claimed in claim 4, wherein, A fireproof expansion strip (17) is fixedly installed at the bottom of the abutment block (16).
6. A novel fire resistant door and window structure as claimed in claim 4, wherein, An extension positioning plate (13) is fixedly installed around the connecting plate (12).