Fireproof door for civil air defense engineering
Patent Information
- Application Number
- CN202521791647.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-08-22
AI Technical Summary
[0004]现有的人防工程用防火门不便于在人防工程火灾使用过程中进行多重密封连接，且不便于为人防工程在火灾使用过程中便于人员观察火情和过滤排烟通风，因此本实用新型提供了一种人防工程用防火门
该人防工程用防火门，通过门框、铰链组件、不锈钢防护层、防火岩棉填充层、耐高温陶瓷纤维板、自动闭门器、门底自动升降密封条、防火密封条和温度感应膨胀胶条的配合设置，使用时人员可通过防火密封条和温度感应膨胀胶条进行多重密封防火连接，从而起到了为防火门在人防工程火灾使用过程中进行多重密封连接的作用，通过钢化玻璃层、防火凝胶中部夹层、电动卷帘、伺服电机、智能控制盒、阻热盖板、排烟扇、钛合金滤板和防火锁的配合设置，使用时人员可通过钢化玻璃层和防火凝胶中部夹层进行防火隔断连接的同时便于人员观察火情，进而人员可通过控制器启动伺服电机驱动电动卷帘进行升降防护，进而人员还可根据需要启动排烟扇经过钛合金滤板对火情进行排烟，从而起到了为人防工程在火灾使用过程中便于人员观察火情和过滤排烟通风的作用。
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Figure CN224871155U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil defense engineering technology, specifically a fireproof door for civil defense engineering. Background Technology
[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and thermal insulation within a certain period of time. They are fire-resistant partitions with a certain degree of fire resistance, installed in fire compartments, evacuation stairwells, vertical shafts, and other similar locations.
[0003] Fire doors are specifically designed to isolate fire sources in buildings and play a vital role in fire prevention. In the event of a fire, people can use fire doors to escape.
[0004] Existing fire doors for civil defense projects are not convenient for multiple sealing connections during fires, nor are they convenient for personnel to observe the fire situation and filter smoke and ventilation during fires. Therefore, this utility model provides a fire door for civil defense projects. Utility Model Content
[0005] (a) Technical problems to be solved In view of the shortcomings of the existing technology, this utility model provides a fireproof door for civil defense projects, which solves the problems mentioned in the background technology.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a fireproof door for civil defense engineering, comprising a door frame, a fireproof door leaf connected to the inner side of the door frame via a hinge assembly, the fireproof door leaf comprising, from the outside to the inside, a stainless steel protective layer, a fireproof rock wool filling layer, and a high-temperature resistant ceramic fiber board, an automatic door closer fixedly installed at the top of the door frame, an automatic door bottom lifting sealing strip provided at the bottom of the door frame, three layers of fireproof sealing strips provided on the sides of the fireproof door leaf, temperature-sensing expansion strips embedded in the edges of the fireproof door leaf, an observation window assembly integrated in the middle of the fireproof door leaf, the observation window assembly comprising inner and outer tempered glass layers, a fireproof gel middle interlayer, and an electric roller shutter, an intelligent control box fixedly connected to the outer wall of the door frame, and a heat-insulating cover plate rotatably connected to the outer wall of the fireproof door leaf via a damping pivot.
[0007] Preferably, the hinge assembly is a high-temperature bearing hinge, which contains a self-lubricating graphite gasket.
[0008] Preferably, both sides of the bottom surface of the electric roller shutter are fixedly connected to the transmission belt via connecting seats. The upper and lower ends of the inner wall of the transmission belt are connected to transmission rollers. The external sides of the two transmission rollers are respectively fixedly connected to a driving gear and a driven gear. The driving gear and the driven gear are connected by gear meshing. The external side of the driving gear is fixedly connected to a servo motor. The surface of the servo motor is fixedly connected to the fire door leaf via a U-shaped mounting seat.
[0009] Preferably, the temperature-sensitive expansion strip has an expansion rate of ≥300% at 150°C.
[0010] Preferably, a smoke exhaust fan is fixedly connected to the lower inner side of the fireproof door leaf, and a titanium alloy filter plate is fixedly connected to the inner side wall of the fireproof door leaf.
[0011] Preferably, the intelligent control box is equipped with a temperature sensor and a wireless communication module, and is externally connected to an audible and visual alarm and an emergency lighting lamp.
[0012] Preferably, the fireproof door leaf is locked to the door frame with a fireproof lock inside, and the fireproof lock is provided with a handle on the outside, with a fingerprint recognition module integrated on the surface of the handle.
[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a fire door for civil defense projects, which has the following beneficial effects: This fire door for civil defense projects, through the coordinated design of a door frame, hinge assembly, stainless steel protective layer, fireproof rock wool filling layer, high-temperature resistant ceramic fiber board, automatic door closer, automatic lifting sealing strip at the bottom of the door, fireproof sealing strip, and temperature-sensitive expansion strip, allows for multiple fireproof connections through the fireproof sealing strip and temperature-sensitive expansion strip. This provides multiple layers of sealing for the fire door during fires in civil defense projects. The door also features a tempered glass layer, a fireproof gel interlayer, an electric roller shutter, a servo motor, an intelligent control box, a heat-insulating cover, a smoke exhaust fan, a titanium alloy filter plate, and a fireproof lock. During use, the tempered glass layer and the fireproof gel interlayer provide fireproof partitioning while facilitating fire observation. Furthermore, the controller can activate the servo motor to drive the electric roller shutter for lifting and lowering protection. Additionally, the smoke exhaust fan can be activated as needed to ventilate the fire through the titanium alloy filter plate, thus facilitating fire observation and smoke filtration and ventilation during fires in civil defense projects. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This utility model Figure 2 Enlarged view at point A; Figure 4 This utility model Figure 2 Enlarged view at point B.
[0015] In the diagram: 1. Door frame; 2. Hinge assembly; 3. Stainless steel protective layer; 4. Fireproof rock wool filling layer; 5. High-temperature resistant ceramic fiber board; 6. Automatic door closer; 7. Automatic lifting sealing strip at the bottom of the door; 8. Fireproof sealing strip; 9. Temperature-sensitive expansion strip; 10. Tempered glass layer; 11. Fireproof gel interlayer; 12. Electric roller shutter; 13. Servo motor; 14. Intelligent control box; 15. Heat-insulating cover plate; 16. Smoke exhaust fan; 17. Titanium alloy filter plate; 18. Fireproof lock. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-4This utility model provides a technical solution: a fireproof door for civil defense projects, including a door frame 1. Through the coordinated arrangement of the door frame 1, hinge assembly 2, stainless steel protective layer 3, fireproof rock wool filling layer 4, high-temperature resistant ceramic fiber board 5, automatic door closer 6, automatic lifting sealing strip at the bottom of the door 7, fireproof sealing strip 8, and temperature-sensitive expansion strip 9, personnel can achieve multiple fireproof seals through the fireproof sealing strip 8 and temperature-sensitive expansion strip 9, thus providing multiple sealing connections for the fireproof door during fire protection operations in civil defense projects. The inner side of the door frame 1 is connected to a fireproof door leaf via the hinge assembly 2. The fireproof door leaf, from the outside to the inside, includes the stainless steel protective layer 3, the fireproof rock wool filling layer 4, and the high-temperature resistant ceramic fiber board 5. An automatic door closer 6 is fixedly installed at the top, an automatic door bottom lifting sealing strip 7 is installed at the bottom of the door frame 1, three layers of fireproof sealing strips 8 are provided on the sides of the fireproof door leaf, temperature-sensing expansion strips 9 are embedded in the edges of the fireproof door leaf, and an observation window assembly is integrated in the middle of the fireproof door leaf. The observation window assembly includes inner and outer tempered glass layers 10, a fireproof gel interlayer 11, and an electric roller shutter 12. Through the coordinated arrangement of the tempered glass layer 10, the fireproof gel interlayer 11, the electric roller shutter 12, the servo motor 13, the intelligent control box 14, the heat-insulating cover plate 15, the smoke exhaust fan 16, the titanium alloy filter plate 17, and the fireproof lock 18, personnel can easily observe the fire while establishing a fireproof partition connection through the tempered glass layer 10 and the fireproof gel interlayer 11. In case of fire, personnel can activate the servo motor 13 via the controller to drive the electric roller shutter 12 for lifting and lowering protection. Furthermore, personnel can activate the smoke exhaust fan 16 to ventilate smoke through the titanium alloy filter plate 17 as needed. This serves to facilitate personnel observation of the fire and filter smoke for ventilation during fire protection operations. An intelligent control box 14 is fixedly connected to the outer wall of the door frame 1. A heat-insulating cover plate 15 is rotatably connected to the outer wall of the fire door leaf via a damping shaft. The hinge assembly 2 is a high-temperature resistant bearing hinge containing a self-lubricating graphite gasket. Both sides of the bottom surface of the electric roller shutter 12 are fixedly connected to the transmission belt via connecting seats. Transmission rollers are connected to the upper and lower ends of the inner wall of the transmission belt, and main transmission rollers are fixedly connected to the outside of the two transmission rollers respectively. The driving gear and driven gear, as well as the active gear and driven gear, are connected by gear meshing. A servo motor 13 is fixedly connected to the outside of the active gear. The surface of the servo motor 13 is fixedly connected to the fireproof door leaf through a U-shaped mounting bracket. The temperature-sensing expansion strip 9 has an expansion rate of ≥300% at 150℃. A smoke exhaust fan 16 is fixedly connected to the lower inside of the fireproof door leaf. A titanium alloy filter plate 17 is fixedly connected to the inner side wall of the fireproof door leaf. A temperature sensor and a wireless communication module are installed inside the intelligent control box 14. An audible and visual alarm and an emergency lighting are connected to the outside of the intelligent control box 14. A fireproof lock 18 is locked inside the fireproof door leaf and to the door frame 1. A handle is installed on the outside of the fireproof lock 18. A fingerprint recognition module is integrated on the surface of the handle of the fireproof lock 18.
[0018] In summary, this fire door for civil defense projects, through the coordinated design of the door frame 1, hinge assembly 2, stainless steel protective layer 3, fireproof rock wool filling layer 4, high-temperature resistant ceramic fiber board 5, automatic door closer 6, automatic lifting sealing strip at the bottom of the door 7, fireproof sealing strip 8, and temperature-sensitive expansion strip 9, allows for multiple fireproof connections through the fireproof sealing strip 8 and temperature-sensitive expansion strip 9 during use. This provides multiple sealing connections for the fire door during fires in civil defense projects. Furthermore, the tempered glass layer 10, fireproof gel interlayer 11, electric roller shutter 12, and servo motor... The combination of the machine 13, intelligent control box 14, heat-insulating cover 15, smoke exhaust fan 16, titanium alloy filter plate 17, and fireproof lock 18 allows personnel to form a fireproof barrier between the tempered glass layer 10 and the fireproof gel interlayer 11, while also facilitating fire observation. Furthermore, personnel can activate the servo motor 13 via the controller to drive the electric roller shutter 12 for lifting and lowering protection. Additionally, personnel can activate the smoke exhaust fan 16 as needed to ventilate the fire through the titanium alloy filter plate 17, thus serving the purpose of facilitating fire observation and smoke filtration and ventilation during fire protection operations.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0020] In the description of this utility model, it should also be noted that the device structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.
[0021] In the description of this utility model, it should also be noted that all standard parts used can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0022] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fire door for civil defense projects, comprising a door frame (1), characterized in that: The inner side of the door frame (1) is connected to a fireproof door leaf via a hinge assembly (2). The fireproof door leaf consists of a stainless steel protective layer (3), a fireproof rock wool filling layer (4), and a high-temperature resistant ceramic fiber board (5) from the outside to the inside. An automatic door closer (6) is fixedly installed on the top of the door frame (1). An automatic door bottom lifting sealing strip (7) is provided at the bottom of the door frame (1). Three layers of fireproof sealing strips (8) are provided on the side of the fireproof door leaf. Temperature-sensitive expansion strips (9) are embedded on the edge of the fireproof door leaf. An observation window assembly is integrated in the middle of the fireproof door leaf. The observation window assembly includes inner and outer tempered glass layers (10), a fireproof gel middle interlayer (11), and an electric roller shutter (12). An intelligent control box (14) is fixedly connected to the outer wall of the door frame (1). A heat-insulating cover plate (15) is rotatably connected to the outer wall of the fireproof door leaf via a damping pivot.
2. A fire door for civil defense projects according to claim 1, characterized in that: The hinge assembly (2) is a high-temperature bearing hinge, which contains a self-lubricating graphite gasket.
3. A fire door for civil defense projects according to claim 1, characterized in that: The bottom surface of the electric roller shutter (12) is fixedly connected to the transmission belt on both sides by connecting seats. The upper and lower ends of the inner wall of the transmission belt are connected to the transmission rollers. The two transmission rollers are respectively fixedly connected to the outside of the drive gear and the driven gear. The drive gear and the driven gear are connected by gear meshing. The drive gear is fixedly connected to the outside of the drive gear. The surface of the servo motor (13) is fixedly connected to the fire door leaf by a U-shaped mounting seat.
4. A fire door for civil defense projects according to claim 1, characterized in that: The temperature-sensitive expansion strip (9) has an expansion rate of ≥300% at 150℃.
5. A fire door for civil defense projects according to claim 1, characterized in that: A smoke exhaust fan (16) is fixedly connected to the lower inner side of the fireproof door, and a titanium alloy filter plate (17) is fixedly connected to the inner side wall of the fireproof door.
6. A fire door for civil defense projects according to claim 1, characterized in that: The intelligent control box (14) is equipped with a temperature sensor and a wireless communication module, and is externally connected to an audible and visual alarm and an emergency lighting lamp.
7. A fire door for civil defense projects according to claim 1, characterized in that: The fireproof door leaf is locked to the door frame (1) by a fireproof lock (18), and the fireproof lock (18) is provided with a handle on the outside. The surface of the handle of the fireproof lock (18) is integrated with a fingerprint recognition module.