A fireproof and heat-insulating steel fire door

Abstract

The utility model discloses a kind of fireproof and heat-insulated steel fireproof door, it is related to fire door technical field, including door frame, the front side of door frame is rotatably connected with steel door, the upper side of door frame is fixedly connected with fixed block, the front side of fixed block is provided with door closer, the other end of door closer is fixedly connected with steel door, the upper side of fixed block is fixedly connected with connecting block, the inner surface lower side of fixed block is fixedly connected with fan, the output of fan is fixedly connected with exhaust pipe, the input of fan is fixedly connected with exhaust pipe.The utility model is through the cooperation of fan, exhaust pipe, exhaust pipe, air inlet pipe, filter core, sliding slot, limit rod, spring and U-shaped lifting clamping plate, smoke generated by fire can be pumped out, timely pumping out smoke can reduce the risk of inhaling toxic gas in the evacuation process of personnel, improve survival probability.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to a fire-resistant and heat-insulating steel fire door. Background Technology

[0002] In high-rise buildings, it is necessary to install steel fire doors with good fire resistance and heat insulation performance to prevent high-temperature smoke from spreading through these passages during a fire, ensuring the safety of people during evacuation. Fire doors can prevent the spread of fire and heat into the stairwell for a certain period of time, giving people upstairs precious escape time.

[0003] The existing technology has the following problems:

[0004] Existing devices cannot effectively extract and remove smoke generated by a fire. Without this extraction function, smoke accumulates rapidly in the fire area, drastically reducing visibility and increasing the risk of disorientation, falls, or trampling. Furthermore, the smoke contains toxic gases such as carbon monoxide, hydrogen cyanide, and hydrogen sulfide. If these gases cannot be removed in time, prolonged exposure can lead to poisoning, suffocation, or even death. In addition, existing devices cannot spray water on a fire source. Water is the most commonly used fire extinguishing medium, and its vaporization process absorbs a large amount of heat. If water cannot be sprayed, the temperature around the fire source will continue to rise, accelerating the spread of the fire to materials surrounding the fire door and potentially compromising its integrity. Utility Model Content

[0005] This invention provides a fire-resistant and heat-insulating steel fire door to solve the problems existing in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A fire-resistant and heat-insulating steel fire door includes a door frame, a steel door rotatably connected to the front side of the door frame, a fixing block fixedly connected to the upper side of the door frame, a door closer provided on the front side of the fixing block, the other end of the door closer being fixedly connected to the steel door, and a connecting block fixedly connected to the upper side of the fixing block.

[0008] A further improvement of the present invention is that: a fan is fixedly connected to the lower inner surface of the fixed block, an exhaust pipe is fixedly connected to the output end of the fan, an extraction pipe is fixedly connected to the input end of the fan, a filter box is fixedly connected to the lower inner surface of the fixed block, the outer wall of the extraction pipe is fixedly connected to the filter box, and the outer wall of the exhaust pipe is fixedly connected to the fixed block.

[0009] A further improvement of the present invention is that: an air inlet pipe is fixedly connected to the right side of the filter box, the outer wall of the air inlet pipe is fixedly connected to the fixing block through the filter box, and a filter element is movably connected to the front side of the filter box through the filter box.

[0010] A further improvement of this utility model is that: two sliding grooves are provided on the front side of the fixing block, a limiting rod is fixedly connected to the lower side of the inner surface of the sliding groove, a spring is sleeved on the outer wall of the limiting rod, a U-shaped lifting plate is slidably connected to the outer wall of the limiting rod, the rear side of the U-shaped lifting plate is movably connected to the filter element, one end of the spring is fixedly connected to the sliding groove, and the other end of the spring is fixedly connected to the U-shaped lifting plate.

[0011] A further improvement of this utility model is that: a water pump is fixedly connected to the lower inner wall of the connecting block, a water pump pipe is fixedly connected to the input end of the water pump, a water outlet pipe is fixedly connected to the output end of the water pump, and the outer wall of the water pump pipe is fixedly connected to the connecting block.

[0012] A further improvement of this utility model is that: an electric telescopic rod is fixedly connected to the right side of the inner surface of the connecting block, a movable plate is fixedly connected to the output end of the electric telescopic rod, two racks are fixedly connected to the upper side of the movable plate, multiple gears are meshed on the upper side of the racks, a rotating tube is fixedly connected through the right side of the gears, and a limit plate is fixedly connected to the outer wall of the rotating tube.

[0013] A further improvement of this utility model is that: the outer wall of the limiting disc is rotatably connected to the connecting block, the outer wall of the rotating pipe is fixedly connected to a water spray head, and the outer wall of the water outlet pipe is rotatably connected to the rotating pipe.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a fire-resistant and heat-insulating steel fire door. Through the cooperation of a fan, exhaust pipe, air inlet pipe, filter element, slide rail, limit rod, spring and U-shaped lifting plate, it can extract and discharge the smoke generated by the fire. Timely extraction and discharge of smoke can reduce the risk of people inhaling toxic gases during evacuation and improve the chances of survival.

[0016] 2. This utility model provides a fire-resistant and heat-insulating steel fire door. Through the cooperation of a water pump, water outlet pipe, rack, rotary pipe, spray head, gear, limit plate and water pump, when encountering a fire source, water can be sprayed onto the fire source. Water has a large specific heat capacity. When sprayed onto the fire source, it can absorb a large amount of heat, reduce the temperature of the burning material to below its ignition point, inhibit the continued combustion reaction, and thus control the spread of the fire. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fixing block of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the connecting block of this utility model;

[0021] Figure 5 for Figure 4 A magnified diagram of the result at point A in the middle.

[0022] In the diagram: 1. Door frame; 2. Steel door; 3. Door closer; 4. Fixing block; 5. Connecting block; 6. Filter box; 7. Fan; 8. Exhaust duct; 9. Vent duct; 10. Inlet duct; 11. Filter element; 12. Slide groove; 13. Limiting rod; 14. Spring; 15. U-shaped lifting plate; 16. Electric telescopic rod; 17. Movable plate; 18. Water pump; 19. Water outlet pipe; 20. Rack; 21. Rotary pipe; 22. Spray head; 23. Gear; 24. Limiting plate; 25. Water suction pipe. Detailed Implementation

[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0024] like Figure 1 As shown, this utility model provides a fire-resistant and heat-insulating steel fire door, including a door frame 1, a steel door 2 rotatably connected to the front side of the door frame 1, a fixing block 4 fixedly connected to the upper side of the door frame 1, a door closer 3 provided on the front side of the fixing block 4, the other end of the door closer 3 fixedly connected to the steel door 2, and a connecting block 5 fixedly connected to the upper side of the fixing block 4. The fire-resistant and heat-insulating steel fire door of this utility model uses the door frame 1 as the basic frame. The steel door 2 is installed on the front side of the door frame 1 by a rotatable connection, which can realize the opening and closing action. The fixing block 4 fixed on the upper side of the door frame 1 is used to install other functional components. The door closer 3 on the front side of the fixing block 4 is connected to the steel door 2 and can automatically close the steel door 2 when no one operates it, ensuring the sealing of the fire door and providing a basis for the subsequent fire protection function. The connecting block 5 on the upper side of the fixing block 4 carries the water spray fire extinguishing related components.

[0025] like Figure 2-3As shown, this utility model provides a technical solution: Preferably, a fan 7 is fixedly connected to the lower inner surface of the fixed block 4, an exhaust pipe 9 is fixedly connected to the output end of the fan 7, an exhaust pipe 8 is fixedly connected to the input end of the fan 7, a filter box 6 is fixedly connected to the lower inner surface of the fixed block 4, the outer wall of the exhaust pipe 8 is fixedly connected to the filter box 6, the outer wall of the exhaust pipe 9 is fixedly connected to the fixed block 4, an air inlet pipe 10 is fixedly connected to the right side of the filter box 6, the outer wall of the air inlet pipe 10 is fixedly connected to the fixed block 4 through the filter, a filter element 11 is movably connected to the front side of the filter box 6, two sliding grooves 12 are provided on the front side of the fixed block 4, a limit rod 13 is fixedly connected to the lower inner surface of the sliding groove 12, a spring 14 is sleeved on the outer wall of the limit rod 13, and a U-shaped lifting plate 15 is slidably connected to the outer wall of the limit rod 13. The rear side is movably connected to the filter element 11. One end of the spring 14 is fixedly connected to the slide groove 12, and the other end of the spring 14 is fixedly connected to the U-shaped lifting plate 15. When smoke is generated in the event of a fire, the fan 7 inside the fixing block 4 is started. The fan 7 draws out the air in the filter box 6 through the exhaust pipe 8, so that the filter box 6 forms a negative pressure. At this time, the external smoke enters the filter box 6 through the air inlet pipe 10 under the action of the pressure difference. The impurities in the smoke are filtered by the filter element 11, and the purified air is discharged through the exhaust pipe 9. The filter element 11 is fixed by the U-shaped lifting plate 15. Under the elastic force of the spring 14 and the limiting action of the limiting rod 13, the U-shaped lifting plate 15 can realize the quick disassembly and assembly of the filter element 11, which is convenient for replacing the filter element 11 and ensuring the smoke filtration effect. The timely discharge of smoke through this device can reduce the risk of inhaling toxic gases during personnel evacuation.

[0026] like Figure 4-5As shown, this utility model provides a technical solution: Preferably, a water pump 18 is fixedly connected to the lower inner wall of the connecting block 5, a water pump pipe 25 is fixedly connected to the input end of the water pump 18, a water outlet pipe 19 is fixedly connected to the output end of the water pump 18, the outer wall of the water pump pipe 25 is fixedly connected to the connecting block 5, an electric telescopic rod 16 is fixedly connected to the right side of the inner surface of the connecting block 5, a movable plate 17 is fixedly connected to the output end of the electric telescopic rod 16, two racks 20 are fixedly connected to the upper side of the movable plate 17, multiple gears 23 are meshed on the upper side of the racks 20, a rotating pipe 21 is fixedly connected through the right side of the gears 23, and a limiting plate 24 is fixedly connected to the outer wall of the rotating pipe 21. The outer wall of 4 is rotatably connected to the connecting block 5. The outer wall of the rotating pipe 21 is fixedly connected to the spray head 22. The outer wall of the outlet pipe 19 is rotatably connected to the rotating pipe 21. When encountering a fire source, the water pump 18 in the connecting block 5 starts, draws water through the water pumping pipe 25, and delivers it through the outlet pipe 19. At the same time, the electric telescopic rod 16 extends and pushes the movable plate 17 to move, which drives the rack 20 to move. The rack 20 meshes with the gear 23, causing the gear 23 to rotate, which in turn drives the rotating pipe 21 to rotate. The spray head 22 fixed on the rotating pipe 21 rotates and sprays water. Because water has a high specific heat capacity, it absorbs a large amount of heat when sprayed onto the fire source, which can reduce the temperature of the burning material below the ignition point, suppress the combustion reaction, and control the spread of the fire.

[0027] The working principle of this fire-resistant and heat-insulating steel fire door will be explained in detail below.

[0028] like Figure 1-5 As shown, when a fire produces smoke, the fan 7 inside the fixed block 4 starts. The fan 7 draws air out of the filter box 6 through the exhaust pipe 8, creating a negative pressure in the filter box 6. At this time, external smoke enters the filter box 6 through the air inlet pipe 10 under the action of the pressure difference. Impurities in the smoke are filtered by the filter element 11, and the purified air is discharged through the exhaust pipe 9. The filter element 11 is fixed by the U-shaped lifting plate 15. Under the elastic force of the spring 14 and the limiting rod 13, the U-shaped lifting plate 15 can realize the quick installation and removal of the filter element 11, making it convenient to replace the filter element 11 and ensuring the smoke filtration effect. This device can also be used to promptly remove smoke. The smoke emission reduces the risk of inhaling toxic gases during evacuation. When encountering a fire source, the water pump 18 in the connecting block 5 starts, drawing water through the water pipe 25 and delivering it through the water outlet pipe 19. At the same time, the electric telescopic rod 16 extends, pushing the movable plate 17 to move, which in turn drives the rack 20 to move. The rack 20 meshes with the gear 23, causing the gear 23 to rotate, which in turn drives the rotating pipe 21 to rotate. The water nozzle 22 fixed on the rotating pipe 21 rotates and sprays water. Because water has a high specific heat capacity, it absorbs a large amount of heat when sprayed onto the fire source, which can lower the temperature of the burning material below the ignition point, inhibit the combustion reaction, and control the spread of the fire.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A fire-resistant and heat-insulating steel fire door, characterized in that: Includes a door frame (1), a steel door (2) is rotatably connected to the front side of the door frame (1), a fixing block (4) is fixedly connected to the upper side of the door frame (1), a door closer (3) is provided on the front side of the fixing block (4), the other end of the door closer (3) is fixedly connected to the steel door (2), and a connecting block (5) is fixedly connected to the upper side of the fixing block (4).

2. The fire-resistant and heat-insulating steel fire door according to claim 1, characterized in that: A fan (7) is fixedly connected to the lower inner surface of the fixed block (4). An exhaust pipe (9) is fixedly connected to the output end of the fan (7). An exhaust pipe (8) is fixedly connected to the input end of the fan (7). A filter box (6) is fixedly connected to the lower inner surface of the fixed block (4). The outer wall of the exhaust pipe (8) is fixedly connected to the filter box (6). The outer wall of the exhaust pipe (9) is fixedly connected to the fixed block (4).

3. A fire-resistant and heat-insulating steel fire door according to claim 2, characterized in that: An air inlet pipe (10) is fixedly connected to the right side of the filter box (6). The outer wall of the air inlet pipe (10) is fixedly connected to the fixing block (4). A filter element (11) is movably connected to the front side of the filter box (6).

4. A fire-resistant and heat-insulating steel fire door according to claim 3, characterized in that: Two sliding grooves (12) are provided on the front side of the fixed block (4). A limiting rod (13) is fixedly connected to the lower side of the inner surface of the sliding groove (12). A spring (14) is sleeved on the outer wall of the limiting rod (13). A U-shaped lifting plate (15) is slidably connected to the outer wall of the limiting rod (13). The rear side of the U-shaped lifting plate (15) is movably connected to the filter element (11). One end of the spring (14) is fixedly connected to the sliding groove (12), and the other end of the spring (14) is fixedly connected to the U-shaped lifting plate (15).

5. A fire-resistant and heat-insulating steel fire door according to claim 1, characterized in that: A water pump (18) is fixedly connected to the lower inner wall of the connecting block (5). A water pump pipe (25) is fixedly connected to the input end of the water pump (18). A water outlet pipe (19) is fixedly connected to the output end of the water pump (18). The outer wall of the water pump pipe (25) is fixedly connected to the connecting block (5).

6. A fire-resistant and heat-insulating steel fire door according to claim 5, characterized in that: An electric telescopic rod (16) is fixedly connected to the right side of the inner surface of the connecting block (5). A movable plate (17) is fixedly connected to the output end of the electric telescopic rod (16). Two racks (20) are fixedly connected to the upper side of the movable plate (17). Multiple gears (23) are meshed on the upper side of the racks (20). A rotating tube (21) is fixedly connected through the right side of the gears (23). A limit plate (24) is fixedly connected to the outer wall of the rotating tube (21).

7. A fire-resistant and heat-insulating steel fire door according to claim 6, characterized in that: The outer wall of the limiting plate (24) is rotatably connected to the connecting block (5), the outer wall of the rotating pipe (21) is fixedly connected to the spray head (22), and the outer wall of the water outlet pipe (19) is rotatably connected to the rotating pipe (21).

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