Warning device for fireproof door of metro section contact passage

Abstract

The utility model belongs to the technical field of fireproof doors, and relates to a metro section contact passage fireproof door warning device which comprises fireproof shutters arranged on two sides of a fireproof door, a mounting block arranged on one side, close to a metro section contact passage, of a door frame, and a spraying system and a lighting system arranged in the mounting block. A temperature sensing fire detector, a spraying system spraying end and a lighting system lighting end are installed on the side, close to the fireproof door, of the installation block, the spraying system is externally connected with a fire fighting water supply pipeline, and the lighting system is connected with the spraying system through a driving paddle. According to the fire door, the temperature sensing fire detector can sense high temperature in time, the spraying system is triggered to work, then the illumination system is started through linkage of the driving paddle and the spraying system, the risk that people are scalded when making contact with the fire door is effectively reduced, and escape prompting is carried out through illumination; and the safe evacuation capacity of the subway section under emergency conditions such as fire disasters is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, and in particular to a fire door warning device for subway section connecting passages. Background Technology

[0002] In the field of subway engineering, connecting passages between subway lines serve as crucial safe evacuation routes linking different subway lines or tunnel sections. Their fire protection design directly impacts personnel safety and fire prevention effectiveness. Fire doors, as key fire protection facilities in these areas, bear the important responsibility of preventing the spread of fire and ensuring the safe evacuation of personnel. Subway connecting passages often experience high wind pressure, necessitating the installation of louvers on the fire doors for ventilation.

[0003] During a fire, the high temperature generated by the flames will directly scorch the surface of the fire door, causing its temperature to rise sharply. This increases the risk of burns when people come into contact with it. In an emergency, it is difficult for people to open the high-temperature fire door immediately, which will seriously delay the escape time and increase the risk of casualties. In addition, a fire may also cause a power outage, which will create a dark environment in the subway section connecting passage, increasing the difficulty of locating people and operating the fire door. Utility Model Content

[0004] In order to solve the above-mentioned existing technical problems, this utility model provides a fireproof door warning device for subway section connecting passages.

[0005] The technical solution of this utility model is achieved through the following scheme: a fire door warning device for a subway section connecting passage, including a subway section connecting passage, a door frame, and a fire door installed on the door frame. Several door frames are opened in the subway section connecting passage. Fireproof louvers are opened on both sides of the fire door. An installation block is provided on the side of the door frame near the subway section connecting passage. A sprinkler system and a lighting system are provided in the installation block. A heat-sensing fire detector, a sprinkler end of the sprinkler system, and a lighting end of the lighting system are installed on the side of the installation block near the fire door. The sprinkler system is connected to a fire water supply pipe. The lighting system is connected to the sprinkler system through a drive blade. The heat-sensing fire detector, the fireproof louvers, and the sprinkler system are all communicatively connected to a remote monitoring room monitoring center.

[0006] Through the above technical solutions, the heat-sensing fire detector can promptly detect high temperatures and trigger the sprinkler system. The sprinkler system sprays water onto the surface of the fire door to cool it down, preventing a rapid increase in the fire door's temperature and effectively reducing the risk of burns when personnel touch the fire door. In emergencies, the fire door can be opened more easily, reducing escape time delays and minimizing the risk of casualties. The lighting system can activate the lighting end through the linkage between the drive blades and the sprinkler system, providing illumination for personnel and providing escape guidance. This reduces the difficulty for personnel to locate and operate the fire door in a dark environment. The monitoring center can obtain real-time fire-related information at the fire door, such as temperature and sprinkler system operating status. Once an abnormality occurs, the monitoring center can issue an early warning in a timely manner, facilitating staff to take appropriate measures, improving the timeliness and effectiveness of fire prevention and control, and enhancing the safe evacuation capability of the subway section in emergencies such as fires.

[0007] Preferably, the mounting block has a water channel and a mounting groove. The sprinkler system includes a water inlet pipe, an angled nozzle, and several water mist nozzles. The water inlet pipe passes through the mounting block and communicates with the angled nozzle. The angled nozzle is located in the water channel. The water inlet pipe is connected to the fire water supply pipeline. The drive blade is located at the nozzle of the angled nozzle. Several water mist nozzles are arrayed on the bottom surface of the mounting block, and the water mist nozzles are connected to the water channel.

[0008] Through the above technical solutions, water channels are opened inside the installation block, and the water flow direction is reasonably distributed through the oblique nozzles, so that the drive blades rotate in a single direction. The water mist nozzles can spray water evenly on the surface of the fire door in the form of mist, which can cover the surface of the fire door more widely, increase the cooling area, improve the cooling efficiency, and reduce the water flow pressure experienced by personnel when entering the spray range.

[0009] Preferably, the lighting system is located in the mounting slot, and the lighting system includes a gear set, a generator, and several lighting lamps. The drive blade shaft is connected to the gear set, the gear set is installed at the rotating end of the generator, and the several lighting lamps are electrically connected to the output end of the generator.

[0010] Preferably, the drive blade is provided with a rotating shaft seal.

[0011] With the above technical solutions, when a fire occurs, the sprinkler system is activated, and the water flow drives the blades to rotate. Through the gear set, the generator rotates and converts mechanical energy into electrical energy to power the lighting, realizing the automatic activation of the lighting system. This allows the subway tunnel connection passage to be lit in a timely manner in the event of a power outage caused by a fire, without the need for manual operation. This improves the speed and reliability of emergency response and greatly improves the escape conditions for people in dark environments.

[0012] Preferably, the fireproof louver includes a support body, a louver, a screw adjustment device, a limiting component, and a controller. The louver is movably installed in the support body via a coupling. One end of the coupling is connected to the screw adjustment device, and the other end of the coupling is located inside the limiting component. Both the limiting component and the screw adjustment device are communicatively connected to the controller.

[0013] Preferably, the support body is covered with protective shells on both sides.

[0014] Through the above technical solution, under normal circumstances, the controller, under the control of the monitoring center in the remote monitoring room, can send commands to the screw adjustment device according to the actual situation in the subway section connecting passage, such as the air volume demand. The screw adjustment device drives the coupling to rotate, thereby adjusting the opening and closing angle of the louvers and realizing flexible adjustment of the ventilation volume. The ventilation volume can be reasonably adjusted according to the ventilation demand to ensure air circulation in the subway section connecting passage. In the event of a fire, the controller, under the control of the heat fire detector, closes the louvers to prevent the spread of fire and the rapid diffusion of smoke.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This utility model utilizes a heat-sensing fire detector to promptly detect high temperatures and trigger the sprinkler system. The sprinkler system sprays water onto the surface of the fire door to cool it down, preventing a rapid increase in temperature and effectively reducing the risk of burns when personnel touch the fire door. In emergencies, the fire door can be opened more easily, reducing escape time delays and minimizing the risk of casualties. The lighting system can activate the lighting end through the linkage between the drive blades and the sprinkler system, providing illumination and escape guidance. This reduces the difficulty for personnel to locate and operate the fire door in a dark environment. The monitoring center can obtain real-time fire-related information at the fire door, such as temperature and sprinkler system status. In case of any abnormality, the monitoring center can issue a timely warning, facilitating staff to take appropriate measures, improving the timeliness and effectiveness of fire prevention and control, and enhancing the safe evacuation capability of subway sections in emergencies such as fires.

[0017] 2. Water channels are opened inside the installation block, and the water flow direction is reasonably distributed through the oblique nozzles, so that the drive blade rotates in a single direction. The water mist nozzles can spray water evenly on the surface of the fire door in the form of mist, which can cover the surface of the fire door more widely, increase the cooling area, improve the cooling efficiency, and reduce the water flow pressure experienced by personnel when entering the spray range.

[0018] 3. When a fire occurs, the sprinkler system is activated, and the water flow drives the blades to rotate. This, in turn, drives the generator through the gear set. The generator converts mechanical energy into electrical energy to power the lighting, thus automatically turning on the lighting system. This allows the subway tunnel connection passages to be lit in a timely manner in the event of a power outage caused by a fire, without the need for manual operation. This improves the speed and reliability of emergency response and greatly enhances the escape conditions for people in dark environments.

[0019] 4. Under normal circumstances, the controller, under the control of the remote monitoring center, sends commands to the screw adjustment device based on the actual conditions within the subway tunnel connection passage, such as airflow requirements. The screw adjustment device drives the coupling to rotate, thereby adjusting the opening and closing angle of the louvers and achieving flexible adjustment of the ventilation volume. The ventilation volume can be reasonably adjusted according to ventilation needs to ensure air circulation within the subway tunnel connection passage. In the event of a fire, the controller, under the control of a heat-sensitive fire detector, closes the louvers to prevent the spread of fire and rapid smoke diffusion. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the fire door of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the outer side of the fire door of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal assembly structure of the fireproof louver of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the fireproof louver of this utility model;

[0024] Figure 5 This is a schematic diagram of the mounting block assembly structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the mounting block of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Fire door; 2. Fireproof louver; 21. Louver; 22. Coupling; 23. Screw adjustment device; 24. Limiting element; 25. Controller; 3. Sprinkler system; 31. Water inlet pipe; 32. Water mist nozzle; 33. Water channel; 34. Angled nozzle; 4. Lighting system; 41. Gear set; 42. Generator; 43. Lighting lamp; 5. Drive blade; 6. Door closer; 7. Protective housing; 8. Mounting block; 9. Heat-sensitive fire detector. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] A fire door warning device for subway section connecting passages, such as Figures 1-6 As shown, the system includes a subway section connecting passage, door frames, and fire doors 1 installed on the door frames. Several door frames are located within the subway section connecting passage. Fire doors 1 have fire-resistant louvers 2 on both sides. An installation block 8 is located on the side of the door frame closest to the subway section connecting passage, directly above the fire door 1. The installation block 8 contains a sprinkler system 3 and a lighting system 4. A heat-sensitive fire detector 9, the sprinkler end of the sprinkler system 3, and the lighting end of the lighting system 4 are installed on the side of the installation block 8 closest to the fire door 1. The system uses sprinkler cooling and lighting to alert personnel to evacuate quickly. The sprinkler system 3 is externally connected to a fire-fighting water supply pipe. During a fire, water is supplied directly to the system. The lighting system 4 is connected to the sprinkler system 3 via the drive blades 5. The lighting system 4 generates electricity and provides light using the continuous mechanical energy from the water supply from the sprinkler system 3, eliminating the need for an external power source, reducing energy consumption and costs, and ensuring continuous operation in emergencies such as fires. The fireproof louvers 2 allow for normal ventilation, improving the overall wind resistance of the fire door 1, ensuring both ventilation and fireproof isolation during a fire. The water spray range covers the fire door 1 and the surrounding area. The sprinkler system 3 and the fireproof louvers 2 are triggered by the heat-sensing fire detector 9, enabling automatic water spraying and the sensor-activated closing of the louvers 21.

[0030] The heat-sensitive fire detector 9, the fireproof louver 2, and the sprinkler system 3 are all communicatively connected to the remote monitoring room monitoring center. The heat-sensitive fire detector 9 is communicatively connected to the sprinkler system 3 and the fireproof louver 2. When the temperature exceeds the set threshold, the heat-sensitive fire detector 9 triggers the sprinkler system 3 and the fireproof louver 2 and sends an alarm signal to the remote monitoring room monitoring center.

[0031] like Figure 2 As shown, a door closer 6 is provided on the other side of the fire door 1. When the fire door 1 opens outward, it will not affect the sprinkler system 3 and the lighting system 4.

[0032] like Figure 6 As shown, the mounting block 8 has a water channel 33 and a mounting groove. The water channel 33 is located on the outside and can serve as a heat exchange layer. It absorbs heat through water circulation and forms a heat insulation barrier. The mounting groove is located on the inside. In case of fire, the water channel 33 protects the lighting system 4 inside the mounting groove, keeping it within a certain safe temperature and ensuring the safe operation of the lighting system 4.

[0033] like Figure 5 and Figure 6 As shown, the sprinkler system 3 includes an inlet pipe 31, an angled nozzle 34, and several water mist nozzles 32. The inlet pipe 31 passes through the mounting block 8 and communicates with the angled nozzle 34. The angled nozzle 34 is located in the water channel 33. The inlet pipe 31 is connected to the fire water supply pipeline. The outlet valve of the fire water supply pipeline is communicatively connected to the heat-sensing fire detector 9. The drive blade 5 is located at the nozzle of the angled nozzle 34. The angled nozzle 34 has a 45-degree opening to ensure that the drive blade 5 rotates in one direction to convert the kinetic energy of the water into electrical energy. Several water mist nozzles 32 are arrayed on the bottom surface of the mounting block 8. The water mist nozzles 32 are connected to the water channel 33. The water mist nozzles 32 are in an inclined downward spray state, which not only has a large coverage area, but also prevents the staff from being subjected to the pressure of the water jet when opening the fire door 1, and avoids water accumulation affecting the escape route.

[0034] The lighting system 4 is located in the mounting slot. The lighting system 4 includes a gear set 41, a generator 42 and several lights 43. The drive blade 5 shaft is connected to the gear set 41 to form a structure similar to a hand-cranked generator lamp. The gear set 41 is installed on the rotating end of the generator 42. Several lights 43 are electrically connected to the output end of the generator 42. The lighting end of the lights 43 protrudes from the ground of the mounting block 8 and is provided with a transparent protective shell 7 to prevent water mist corrosion.

[0035] The rotating shaft of the drive blade 5 passes through the partition between the water channel 33 and the mounting slot. The drive blade 5 is equipped with a rotating shaft seal. The sealing ring is preferably made of silicon carbide, which is wear-resistant and corrosion-resistant. The elastic element is preferably made of fluororubber (FKM), which is temperature resistant from -20℃ to 200℃. The bushing is preferably made of 316 stainless steel or ceramic coating to reduce the coefficient of friction. Since the drive blade 5 needs to rotate under the impact of water flow for a long time, the rotating shaft seal can effectively prevent water in the water channel 33 from leaking from the rotating shaft to the outside of the mounting block 8 or other parts that should not come into contact with water. This ensures the normal operation of the water system inside the device and avoids water waste and damage to other parts caused by leakage. The seal can protect the rotating shaft of the drive blade 5, reduce the wear and failure of the rotating shaft caused by water erosion, and extend the service life of the drive blade 5. This improves the reliability and stability of the entire fire door 1 warning device and ensures that the device can work normally in the event of a fire and play its due role in fire prevention, warning and evacuation guidance.

[0036] like Figure 3 and Figure 4The fireproof louver 2 includes a support body, a louver 21, a screw adjustment device 23, a limiting member 24, and a controller 25. The louver 21 is movably mounted in the support body via a coupling 22. One end of the coupling 22 is connected to the screw adjustment device 23, and the other end is located within the limiting member 24. Both the limiting member 24 and the screw adjustment device 23 are communicatively connected to the controller 25. The screw adjustment device 23 uses a ball screw. The louver 21 consists of multiple slats mounted on the support body with rotating shafts at one end. One end of the rotating shaft protrudes and is mounted on the coupling 22. The ball screw provides high transmission efficiency and high precision. With a long service life, it can accurately convert rotary motion into linear motion. When the lead screw adjusting device 23 is working, its motion force is transmitted to the rotating shaft through the coupling 22, thereby driving the louver 21 to open and close. The controller 25 can send control commands to the lead screw adjusting device 23 according to external signals to control its rotation direction and speed, thereby realizing automatic control of the opening and closing angle of the louver 21. At the same time, the limit member 24 is equipped with a position sensor, and the controller 25 can also receive feedback information from the limit member 24 to understand the motion status of the coupling 22 and ensure that the louver 21 operates within a safe range.

[0037] Both sides of the support body are covered with protective shells 7. L-shaped corner mounting plates are provided on both sides of the support body to assist in the installation of the protective shells 7. After the protective shells 7 are installed, they cover and protect the coupling 22 and other components from external environmental corrosion, such as dust, water vapor, and debris. This reduces the wear and damage of these factors to the internal mechanical parts, extends the service life of the fireproof louver 2, and reduces maintenance costs.

[0038] Working principle: During normal operation, the remote monitoring center controls the opening and closing angle of the fireproof louvers 2. When a fire occurs, the heat-sensitive fire detector 9 detects abnormal temperature and smoke and starts to alarm. At the same time, it drives the outlet valves of the fireproof louvers 2 and the fire water supply pipe to close the louvers 21 to ensure the tightness of the fire door 1 and supply water to the sprinkler system 3, generating water mist in front of the door. The huge mechanical energy of the fire water supply entering the sprinkler system 3 is converted into power for the lighting system 4 through the drive blades 5 to generate light for guidance.

[0039] All parts and equipment use conventional models from the existing technology, and the circuit connections use conventional connection methods from the existing technology, which will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art. For example, the energy storage device in lighting system 4 (not shown in the figure) can be a high-temperature resistant capacitor such as a ceramic capacitor.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fire door warning device for a subway section connecting passage, comprising a subway section connecting passage, a door frame, and a fire door (1) installed on the door frame, wherein the subway section connecting passage has a plurality of door frames, characterized in that: The fire door (1) has fireproof louvers (2) on both sides. The door frame is equipped with an installation block (8) on the side near the subway section connecting passage. The installation block (8) is equipped with a sprinkler system (3) and a lighting system (4). The installation block (8) is equipped with a heat-sensing fire detector (9), a sprinkler end of the sprinkler system (3) and a lighting end of the lighting system (4) on the side near the fire door (1). The sprinkler system (3) is connected to a fire water supply pipe. The lighting system (4) is connected to the sprinkler system (3) through a drive blade (5). The heat-sensing fire detector (9), the fireproof louvers (2) and the sprinkler system (3) are all connected to the remote monitoring room monitoring center.

2. The fireproof door warning device for subway section connecting passages according to claim 1, characterized in that: The mounting block 8 has a water channel 33 and a mounting groove. The sprinkler system 3 includes a water inlet pipe 31, an oblique nozzle 34, and several water mist nozzles 32. The water inlet pipe 31 passes through the mounting block 8 and communicates with the oblique nozzle 34. The oblique nozzle 34 is located in the water channel 33. The water inlet pipe 31 is connected to the fire water supply pipeline. The drive blade 5 is located at the nozzle of the oblique nozzle 34. Several water mist nozzles 32 are arrayed on the bottom surface of the mounting block 8. The water mist nozzles 32 are connected to the water channel 33.

3. The fireproof door warning device for subway section connecting passages according to claim 2, characterized in that: The lighting system 4 is located in the mounting slot. The lighting system 4 includes a gear set 41, a generator 42 and several lighting lamps 43. The drive blade 5 is shaft connected to the gear set 41. The gear set 41 is installed on the rotating end of the generator 42. The several lighting lamps 43 are electrically connected to the output end of the generator 42.

4. The fireproof door warning device for subway section connecting passages according to claim 3, characterized in that: The drive blade 5 is equipped with a rotating shaft seal.

5. The fireproof door warning device for subway section connecting passages according to claim 1, characterized in that: The fireproof louver 2 includes a support body, a louver 21, a lead screw adjustment device 23, a limiting member 24, and a controller 25. The louver 21 is movably installed in the support body through a coupling 22. One end of the coupling 22 is connected to the lead screw adjustment device 23, and the other end of the coupling 22 is located inside the limiting member 24. Both the limiting member 24 and the lead screw adjustment device 23 are communicatively connected to the controller 25.

6. The fireproof door warning device for subway section connecting passages according to claim 5, characterized in that: The support body is covered with protective shells 7 on both sides.

Images