Fireproof door structure with good fire resistance
By using high-temperature resistant materials such as ceramic fiber, cold-rolled steel plate, and aluminum-titanium alloy coating in fire doors, combined with anti-theft and sealing components, the problem of existing fire doors easily melting at high temperatures has been solved, achieving better fire resistance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN GUOQIANG SPECIAL DOOR IND CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-05-19
AI Technical Summary
Existing fire doors have a simple structure, which cannot effectively prevent the spread of fire, and they are prone to melting at high temperatures, which can exacerbate fires.
High-temperature resistant materials such as ceramic fiber, cold-rolled steel plate, and aluminum-titanium alloy coating are used, combined with anti-theft components, sealing components, and sound insulation layers to enhance the fire resistance, security, and sound insulation performance of the door.
It significantly improves the fire resistance of the door, slows the spread of flames, enhances safety and ease of use, ensures normal operation at high temperatures, and prevents burns.
Smart Images
Figure CN224260202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire door technology, and in particular to a fire door structure with good fire resistance. Background Technology
[0002] Fire doors are installed in fire compartments, evacuation stairwells, pipe shafts, and other locations. They consist of a door frame, door leaf, and hardware, and are designed to meet fire resistance, integrity, and insulation requirements for a certain period. Using fire doors with good fire resistance not only prevents the spread of fire, buying time for evacuation and fire rescue, but also ensures personnel safety, protects property, and complies with building design and fire safety regulations, making them crucial for ensuring building fire safety.
[0003] Currently, most fire doors are simply constructed of iron and installed directly in passageways. However, this single iron door structure has significant limitations when facing a fire. Due to its simple structure, it cannot effectively prevent the spread of fire. After being exposed to intense heat for a long time, the iron door is prone to melting due to the high temperature, causing the fire to become uncontrollable and exacerbating the severity of the disaster. Therefore, a fire door structure with good fire resistance is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a fire door structure with good fire resistance, aiming to improve the problem that the existing fire door structures are relatively simple and have limited functions, which cannot meet the needs of use and thus lead to a decrease in the practicality of the fire door structure.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fireproof door structure with good fire resistance, including a mounting frame, a hinge fixedly connected to one side of the outer wall of the mounting frame, a fireproof shell fixedly connected to one side of the outer wall of the hinge, a door closer fixedly connected to one side of the outer wall of the fireproof shell, one side of the door closer being disposed on one side of the outer wall of the mounting frame, an anti-theft component installed inside the fireproof shell, and a sealing component installed on one side of the outer wall of the fireproof shell;
[0006] The sealing assembly includes a fireproof frame, one side of the outer wall of the fireproof frame is fixedly connected to one side of the outer wall of the fireproof shell, a plurality of fireproof sealing blocks are fixedly connected to the inner wall of the fireproof frame, a fireproof panel is fixedly connected to one side of the outer wall of the fireproof frame, and a fireproof component is installed inside the fireproof frame.
[0007] Furthermore, the anti-theft component includes a door lock, the outer wall of which is disposed inside a fireproof shell and a fireproof panel, and a handle is disposed inside the fireproof shell on the side away from the door lock.
[0008] Furthermore, the fireproof component includes a filling layer, which is disposed inside the fireproof frame. A fireproof layer is fixedly connected inside the filling layer, and a sound-absorbing layer is fixedly connected to one side of the outer wall of the fireproof layer.
[0009] Furthermore, the door lock and handle are both installed inside the fireproof shell, the filling layer, and the fireproof panel, and are used to lock and fix the fireproof door.
[0010] Furthermore, the fireproof layer is made of high-temperature resistant ceramic fiber material, and the soundproof layer is made of special rubber material, which can effectively absorb vibration and noise and improve the sound insulation performance of the fire door.
[0011] Furthermore, the fireproof panel is made of cold-rolled steel plate, which can delay the temperature rise when a fire occurs and ensure the door remains stable at high temperatures.
[0012] Furthermore, the hinge is made of a high-temperature resistant aluminum-titanium alloy coating, the melting point of which is higher than the operating temperature range of conventional fire doors.
[0013] Furthermore, the door lock is equipped with a fireproof sealing ring to prevent flames from entering the room through the door lock in the event of a fire. The handle is made of stainless steel alloy, which can keep the surface temperature from rising at high temperatures, preventing users from being burned by high temperatures.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, by using high-temperature resistant materials such as ceramic fiber, cold-rolled steel plate and aluminum-titanium alloy coating, the fire resistance of the door body is significantly improved. Ceramic fiber has excellent high-temperature resistance, which can effectively isolate flames and heat, delay the temperature rise and prevent the spread of fire. Cold-rolled steel plate and aluminum-titanium alloy coating enhance the strength and corrosion resistance of the door body, ensuring that the door body maintains structural stability in fire environment, extending service life and providing better fire protection.
[0016] 2. This utility model enhances security by incorporating anti-theft and sealing components. The anti-theft component prevents unauthorized damage, while the sealing component effectively isolates smoke, flames, and toxic gases during a fire, ensuring the safety of occupants. Simultaneously, the sound-absorbing layer uses a special rubber material that absorbs noise, improving sound insulation and enhancing the comfort of the user environment. Furthermore, the door lock and handle are made of high-temperature resistant materials, ensuring normal operation even at high temperatures and preventing damage or burns caused by heat, thus improving overall security and ease of use. Attached Figure Description
[0017] Figure 1This is a three-dimensional structural diagram of a fire door with good fire resistance proposed in this utility model.
[0018] Figure 2 This is a schematic diagram of the filling layer structure of a fire door with good fire resistance proposed in this utility model.
[0019] Figure 3 This is a schematic diagram of the fireproof sealing block part of a fireproof door structure with good fire resistance proposed in this utility model.
[0020] Figure 4 for Figure 3 Enlarged view of point A in the image.
[0021] Legend:
[0022] 1. Mounting frame; 2. Hinges; 3. Fireproof shell; 4. Door closer; 5. Door lock; 6. Handle; 7. Fireproof frame; 8. Fireproof sealing block; 9. Fireproof panel; 10. Filling layer; 1001. Fireproof layer; 1002. Soundproof layer. Detailed Implementation
[0023] 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.
[0024] Reference Figure 1 - Figure 4 The present invention provides an embodiment of a fireproof door structure with good fire resistance, including a mounting frame 1, a hinge 2 fixedly connected to one side of the outer wall of the mounting frame 1, a fireproof shell 3 fixedly connected to one side of the outer wall of the hinge 2, a door closer 4 fixedly connected to one side of the outer wall of the fireproof shell 3, one side of the door closer 4 being disposed on one side of the outer wall of the mounting frame 1, an anti-theft component installed inside the fireproof shell 3, and a sealing component installed on one side of the outer wall of the fireproof shell 3;
[0025] The sealing assembly includes a fireproof frame 7, one side of which is fixedly connected to the outer wall of the fireproof shell 3. Multiple fireproof sealing blocks 8 are fixedly connected to the inner wall of the fireproof frame 7. A fireproof panel 9 is fixedly connected to the outer wall of the fireproof frame 7. Fireproof components are installed inside the fireproof frame 7. The anti-theft assembly includes a door lock 5, the outer wall of which is located inside the fireproof shell 3 and the fireproof panel 9. A handle 6 is located inside the fireproof shell 3 on the side away from the door lock 5. The fireproof assembly includes a filling layer 10, which is located inside the fireproof frame 7. A fireproof layer 1001 is fixedly connected inside the filling layer 10. A soundproof layer 1002 is fixedly connected to the outer wall of the fireproof layer 1001.
[0026] Specifically, a hinge 2 is fixedly connected to one side of the outer wall of the mounting frame 1. A fireproof shell 3 is fixedly connected to one side of the outer wall of the hinge 2. A door closer 4 is fixedly connected to one side of the outer wall of the fireproof shell 3. One side of the door closer 4 is located on one side of the outer wall of the mounting frame 1. An anti-theft component is installed inside the fireproof shell 3. A sealing component is installed on one side of the outer wall of the fireproof shell 3. The sealing component includes a fireproof frame 7, which is fixedly connected to one side of the outer wall of the fireproof shell 3. Multiple fireproof sealing blocks 8 are fixedly connected to the inner wall of the fireproof frame 7. A fireproof panel 9 is fixedly connected to one side of the outer wall of the fireproof frame 7. Fireproof components are installed inside the fireproof frame 7. The function of the fireproof frame 7 is to enhance the sealing and fire resistance of the fireproof shell 3. The fireproof sealing blocks 8 effectively prevent the spread of fire sources or heat. The fireproof panel 9 increases the fire resistance of the door. The combination of the fireproof frame 7 and the fireproof panel 9 forms a reliable heat insulation barrier, which helps to improve the fire resistance time of the door. To ensure the fire door effectively prevents the spread of fire in the event of a fire, the anti-theft components include a door lock 5. The outer wall of the door lock 5 is located inside the fireproof shell 3 and the fireproof panel 9. A handle 6 is located inside the fireproof shell 3 on the side away from the door lock 5. The design of the door lock 5 enhances the security of the fire door, prevents unauthorized opening, and ensures the normal use of the fire door in the event of a fire. The handle 6 allows personnel to quickly open the fire door in an emergency, ensuring unobstructed escape routes. The fireproof components include a filling layer 10, which is located inside the fireproof frame 7. A fireproof layer 1001 is fixedly connected inside the filling layer 10, and a sound-absorbing layer 1002 is fixedly connected to one side of the outer wall of the fireproof layer 1001. The filling layer 10 provides additional fire protection, the fireproof layer 1001 effectively blocks the intrusion of flames and extends the fire resistance time of the fire door, and the sound-absorbing layer 1002 reduces the noise generated when the door expands due to heat, improving user comfort.
[0027] Reference Figure 1 - Figure 4 The door lock 5 and handle 6 are both installed inside the fireproof shell 3, the filling layer 10, and the fireproof panel 9. The door lock 5 and handle 6 are used to lock and fix the fire door. The fireproof layer 1001 is made of high-temperature resistant ceramic fiber material, and the sound-absorbing layer 1002 is made of special rubber material, which can effectively absorb vibration and noise and improve the sound insulation performance of the fire door. The fireproof panel 9 is made of cold-rolled steel plate material, which can delay the temperature rise when a fire occurs and ensure the stability of the door at high temperatures. The hinge 2 is made of high-temperature resistant aluminum-titanium alloy coating. The melting point of the high-temperature resistant material is higher than the working temperature range of conventional fire doors. The door lock 5 is equipped with a fireproof sealing ring to prevent flames from entering the room through the door lock 5 during a fire. The handle 6 is made of stainless steel alloy, which can keep the surface temperature from rising at high temperatures and prevent users from being burned by high temperatures.
[0028] Specifically, the door lock 5 and handle 6 are both installed inside the fireproof shell 3, the filling layer 10, and the fireproof panel 9. The door lock 5 and handle 6 are used to lock and fix the fire door. The door lock 5, through the locking structure on the door, ensures that the fire door is locked in a non-fire state, preventing unauthorized opening or loosening of the door. The handle 6 provides a convenient way to open the door in an emergency, ensuring that personnel can quickly open the fire door for evacuation in the event of a fire or other emergencies. The fireproof layer 1001 is made of high-temperature resistant ceramic fiber material. Ceramic fiber material has excellent high-temperature resistance and can effectively block the conduction of flames and heat during a fire, delaying the temperature rise, thereby increasing the fire resistance of the fire door. The soundproof layer 1002 is made of special rubber material, which can effectively absorb vibration and noise, improve the sound insulation performance of the fire door, reduce the impact of noise that may be generated by the door during a fire on personnel, and also reduce vibration noise caused by temperature fluctuations during a fire. The fireproof panel 9 is made of cold-rolled steel plate material. Cold-rolled steel plate has good high-temperature resistance and can delay the temperature rise during a fire. The increased temperature ensures the door remains stable under high temperatures. The smooth and oxidation-resistant surface of the cold-rolled steel plate enhances the structural strength and service life of the fireproof panel 9, further improving the fire door's protective function in a fire. The hinge 2 is made of a high-temperature resistant aluminum-titanium alloy coating. Aluminum-titanium alloy has a high melting point and resistance to heat deformation, ensuring stability in high-temperature environments and preventing damage or loosening of the hinge 2 due to high temperatures. This ensures the normal opening and closing of the fire door. The aluminum-titanium alloy coating makes the hinge 2 more corrosion-resistant, extending its service life and enhancing the overall reliability of the fire door. The door lock 5 has a fireproof sealing ring inside to prevent flames from entering the room through the door lock 5 during a fire. The sealing ring effectively seals the gaps inside the door lock 5, blocking the penetration of flames, smoke, and other harmful substances, maintaining the fire door's airtightness, and enhancing its fireproof effect. The handle 6 is made of stainless steel alloy. Stainless steel alloy has strong high-temperature resistance and corrosion resistance, maintaining its surface temperature under high-temperature environments to prevent users from being burned by high temperatures, while ensuring safe use in emergencies such as fires.
[0029] Working Principle: When this fire door is needed, firstly, the mounting frame 1 and hinges 2 ensure stable installation and flexible opening of the door. The fireproof shell 3 is fixedly connected to the hinges 2, forming the external protective structure of the door, which can effectively prevent direct corrosion of the door by flames and high temperatures. The door closer 4 ensures that the fire door can automatically close in an emergency, preventing the door from opening and causing the flames to spread. The fireproof shell 3 is equipped with anti-theft components, such as a door lock 5, which prevents illegal damage through anti-theft design. In addition, the fireproof frame 7 on the outer wall of the door ensures that the door is effectively sealed during a fire, preventing the penetration of fire smoke and toxic gases. The fireproof frame 7 in the sealing component is fixedly connected to multiple fireproof sealing blocks 8, which, through tight cooperation with the door frame, enhance the door's performance. Fire resistance is achieved through a fire-resistant component, including a filling layer 10 inside the fire-resistant frame 7. The filling layer 10 contains a fire-resistant layer 1001 made of high-temperature resistant ceramic fiber material, which effectively isolates the fire source, slows down the temperature rise, and prevents the further spread of the fire. In addition, the sound-absorbing layer 1002 effectively absorbs vibration and noise, improving the sound insulation performance of the door, so that it can provide a comfortable environment while being fireproof. The door lock 5 and handle 6 run through the entire fire door, ensuring that the door can still be locked and opened normally during a fire, ensuring safe evacuation. The door lock 5 is also equipped with a fireproof sealing ring to prevent flames from entering the room through the door lock 5 during a fire. The handle 6 is made of stainless steel alloy material, which can maintain a low surface temperature at high temperatures to avoid burns to users.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fire door structure with good fire resistance, comprising a mounting frame (1), characterized in that: A hinge (2) is fixedly connected to one side of the outer wall of the mounting frame (1), a fireproof shell (3) is fixedly connected to one side of the outer wall of the hinge (2), a door closer (4) is fixedly connected to one side of the outer wall of the fireproof shell (3), one side of the door closer (4) is located on one side of the outer wall of the mounting frame (1), an anti-theft component is installed inside the fireproof shell (3), and a sealing component is installed on one side of the outer wall of the fireproof shell (3). The sealing assembly includes a fireproof frame (7), one side of the outer wall of the fireproof frame (7) is fixedly connected to one side of the outer wall of the fireproof shell (3), a plurality of fireproof sealing blocks (8) are fixedly connected to the inner wall of the fireproof frame (7), a fireproof panel (9) is fixedly connected to one side of the outer wall of the fireproof frame (7), and a fireproof component is installed inside the fireproof frame (7).
2. A fire door structure having good fire resistance according to claim 1, characterized in that: The anti-theft component includes a door lock (5), the outer wall of which is disposed inside the fireproof shell (3) and the fireproof panel (9), and a handle (6) is disposed inside the fireproof shell (3) on the side away from the door lock (5).
3. A fire door structure having good fire resistance according to claim 2, characterized in that: The fireproof component includes a filling layer (10), which is disposed inside the fireproof frame (7). A fireproof layer (1001) is fixedly connected inside the filling layer (10), and a soundproof layer (1002) is fixedly connected to one side of the outer wall of the fireproof layer (1001).
4. The fire door structure of claim 3, wherein: The door lock (5) and handle (6) are both installed inside the fireproof shell (3), the filling layer (10) and the fireproof panel (9). The door lock (5) and handle (6) are used to lock and fix the fireproof door.
5. The fire door structure of claim 3, wherein: The fireproof layer (1001) is made of high-temperature resistant ceramic fiber material, and the soundproof layer (1002) is made of special rubber material, which can effectively absorb vibration and noise and improve the sound insulation performance of the fire door.
6. A fire door structure having good fire resistance according to claim 4, characterized in that: The fireproof panel (9) is made of cold-rolled steel plate, which can delay the rise in temperature when a fire occurs and ensure the stability of the door at high temperatures.
7. The fire door assembly of claim 1, wherein: The hinge (2) is made of a high-temperature resistant aluminum-titanium alloy coating.
8. The fire door structure of claim 4, wherein: The door lock (5) is equipped with a fireproof sealing ring to prevent flames from entering the room through the door lock (5) during a fire. The handle (6) is made of stainless steel alloy.