Fireproof double door with flame retardant effect
By integrating components such as water tanks, sprinklers, and glass bottles into fire doors, the problems of traditional fire doors spreading through gaps and burning handles due to high temperatures in extreme fires are solved, achieving more efficient fire protection performance.
Patent Information
- Application Number
- CN202520092108.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional fire doors are not effective at preventing fires in extreme fire conditions, allowing flames and smoke to spread easily through gaps, and the hot handles can burn people's hands.
Design a fire-resistant double door with flame-retardant properties. It uses components such as a water tank, water pipe, sprinkler head, rotating rod, sealing strip, and glass bottle. In the event of a fire, the glass bottle bursts, driving the rotating rod to remove the sealing strip. The sprinkler head sprays a water curtain to block dense smoke and reduce the temperature of the handle.
It effectively blocks the spread of dense smoke, prevents burns to personnel, and achieves more efficient fire protection performance.
Smart Images
Figure CN223767367U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fire door technology, specifically relating to a fireproof double door with flame-retardant effect. Background Technology
[0002] Fire doors are specially designed doors used to prevent the spread of fire and smoke in the event of a fire, thereby protecting evacuation routes and critical facilities. They are typically installed in critical areas of buildings such as stairwells, elevator shafts, pipe shafts, and cable shafts, as well as at openings in firewalls.
[0003] With the continuous improvement of building safety standards, especially in public places and high-rise buildings, the demand for fire doors is increasing. Although traditional fire doors can prevent the spread of fire to a certain extent, their flame-retardant effect often fails to meet the requirements of higher standards in extreme fire situations.
[0004] Fire doors are usually installed on door frames with gaps at the edges. In the event of a fire, even when the fire door is closed, flames and smoke can still pass through the gaps. The smoke can spread to other places through the gaps, which can easily cause danger. In addition, the flames and hot smoke can raise the temperature of the fire door handle, causing burns to people's hands when they escape. Utility Model Content
[0005] To solve the above technical problems, the present invention adopts the following technical solution: providing a fireproof double door with flame-retardant effect, including a door frame, a water tank is provided on the rear surface of the door frame, a connecting pipe is welded to the lower front end of the water tank, a water storage pipe is fixedly connected to one end of the connecting pipe, a plurality of nozzles are provided on the side surface of the water storage pipe, and a rotating rod is rotatably connected through the side surface of the water storage pipe.
[0006] A connecting block is fixedly connected to the side surface of the rotating rod, and a blocking strip is fixedly connected to the lower surface of the connecting block. Gravity blocks are provided at both ends of the rotating rod. A mounting frame is fixedly connected to the side surface of the door frame, and a base plate is movably connected to the inner wall of the mounting frame. A magnet is fixedly connected to the side surface of the door frame, and a glass bottle is movably connected to the upper surface of the base plate.
[0007] Through the above technical solution, when a fire occurs and the temperature rises, the mounting frame and base plate transfer the high temperature to the glass bottle. The glass bottle explodes due to the heat. At this time, the gravity block rotates around the center of the rotating rod under its own weight, which drives the rotating rod and the blocking strip to rotate. During the rotation, the blocking strip releases the blockage on the nozzle, and the nozzle sprays water from the water storage pipe and water tank. The sprayed water forms a water curtain that can block the dense smoke from passing through and prevent the dense smoke from spreading through the gaps and causing danger. Moreover, when the water curtain flows down, it can reduce the temperature of the first and second handles and prevent people from being burned when touching them.
[0008] The present invention is further configured such that a left fire door is rotatably provided on the inner wall of the door frame, and a right fire door is rotatably provided on the inner wall of the door frame.
[0009] Through the above technical solution, the left and right fire doors can be closed in the event of a fire, effectively preventing the spread of flames and thick smoke.
[0010] The present invention is further configured such that a first handle is provided on the side surface of the left fire door, and a second handle is provided on the side surface of the right fire door.
[0011] The present invention is further configured such that the side surface of the connecting pipe penetrates the door frame, and the side surface of the water storage pipe contacts the door frame.
[0012] The present invention is further configured such that the side surface of the plug is in contact with the water storage pipe, the side surface of the water storage pipe is fixedly connected to a fixing plate, and the front surface of the fixing plate is threaded with a bolt.
[0013] The above technical solution allows the water storage pipe to be connected to the door frame using a fixing plate and bolts, thus fixing the installation position of the water storage pipe.
[0014] The present invention is further configured such that the rear surface of the fixing plate contacts the door frame, and the side surface of the bolt is threadedly connected to the door frame.
[0015] The present invention is further configured such that the base plate is made of iron, and the side surface of the base plate is magnetically connected to a magnet.
[0016] With the above technical solution, the side surface of the base plate can be attracted to the magnet. After the glass bottle breaks, the fragments are located in the space between the mounting frame and the base plate. The base plate can be removed to clean the fragments, avoiding the trouble of cleaning later.
[0017] The present invention is further configured such that the upper surface of the glass bottle is in contact with the gravity block, the upper surface of the water tank is provided with a water inlet, and the side surface of the water tank is provided with a level gauge.
[0018] The above technical solution allows water to be filled into the water tank through the water inlet.
[0019] The beneficial effects of this utility model are as follows:
[0020] The system works in conjunction with a water storage pipe, sprinkler head, rotating rod, stopper, gravity block, and glass bottle. When a fire occurs and the temperature rises, the glass bottle will break. At this time, the gravity block will rotate around the center of the rotating rod under its own weight, causing the rotating rod and the stopper to rotate, moving the stopper away from the sprinkler head. The sprinkler head will then spray water from the water storage pipe and water tank, forming a water curtain in front of the door frame to block the thick smoke from passing through and prevent the thick smoke from spreading and causing danger. The water curtain can also cool the first and second handles to prevent burns to people's hands. Attached Figure Description
[0021] Figure 1 This is a first-view structural diagram of a fireproof double door with flame-retardant effect according to this utility model;
[0022] Figure 2 This is a second-view structural diagram of a fireproof double door with flame-retardant effect according to this utility model;
[0023] Figure 3 This is a partial structural diagram of a fireproof double door with flame-retardant effect according to this utility model.
[0024] Figure 4 This is a partial exploded view of the structure of a fireproof double door with flame-retardant effect according to this utility model;
[0025] Figure 5 yes Figure 1 Enlarged view of point A in the middle.
[0026] Attached reference numerals: 1. Door frame; 2. Left fire door; 3. Right fire door; 4. First handle; 5. Second handle; 6. Water tank; 7. Connecting pipe; 8. Water storage pipe; 9. Sprinkler head; 10. Rotating rod; 11. Connecting block; 12. Blocking strip; 13. Gravity block; 14. Fixing plate; 15. Bolt; 16. Mounting frame; 17. Base plate; 18. Magnet; 19. Glass bottle; 20. Water inlet; 21. Level gauge. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0028] like Figures 1-5 As shown, a fireproof double door with flame-retardant effect in this embodiment includes a door frame 1, a left fireproof door 2 rotatably disposed on the inner wall of the door frame 1, a right fireproof door 3 rotatably disposed on the inner wall of the door frame 1, a first handle 4 disposed on the side surface of the left fireproof door 2, a second handle 5 disposed on the side surface of the right fireproof door 3, and the surfaces of the left fireproof door 2 and the right fireproof door 3 are coated with fireproof paint, which can prevent the spread of fire in the event of a fire.
[0029] A water tank 6 is installed on the rear surface of the door frame 1. The water tank 6 can be filled with water. In case of fire, the water in the water tank 6 is sprayed out from the nozzles 9 to form a water curtain. The water curtain can block the spread of dense smoke and prevent the spread of dense smoke from causing danger. When the water curtain flows down, it can cool the first handle 4 and the second handle 5 to prevent people from being burned when escaping. A connecting pipe 7 is welded to the lower front end of the water tank 6. One end of the connecting pipe 7 is fixedly connected to a water storage pipe 8. The side surface of the connecting pipe 7 penetrates the door frame 1. The side surface of the water storage pipe 8 contacts the door frame 1. Several nozzles 9 are installed on the side surface of the water storage pipe 8. A rotating rod 10 is rotatably connected through the side surface of the water storage pipe 8.
[0030] A connecting block 11 is fixedly connected to the side surface of the rotating rod 10, and a blocking strip 12 is fixedly connected to the lower surface of the connecting block 11. The blocking strip 12 can block the nozzle 9 to prevent water leakage at the nozzle 9 during daily use. The side surface of the blocking strip 12 is in contact with the water storage pipe 8. A fixing plate 14 is fixedly connected to the side surface of the water storage pipe 8. A bolt 15 is threadedly connected to the front surface of the fixing plate 14. The water storage pipe 8 is fixed to the door frame 1 by the cooperation of the fixing plate 14 and the bolt 15. The rear surface of the fixing plate 14 is in contact with the door frame 1, and the side surface of the bolt 15 is threadedly connected to the door frame 1.
[0031] Gravity blocks 13 are provided at both ends of the rotating rod 10. A mounting frame 16 is fixedly connected to the side surface of the door frame 1. A base plate 17 is movably connected to the inner wall of the mounting frame 16. The base plate 17 is made of iron. The side surface of the base plate 17 is magnetically connected to a magnet 18. A magnet 18 is fixedly connected to the side surface of the door frame 1. A glass bottle 19 is movably connected to the upper surface of the base plate 17. The glass bottle 19 is a heat-sensitive element that breaks directly when exposed to high temperatures. The upper surface of the glass bottle 19 is in contact with the gravity blocks 13. In daily use, the glass bottle 19 supports the gravity blocks 13, causing the sealing strip 12 to block the nozzle 9 and prevent water leakage. In case of fire, the mounting frame 16 and the base plate 17 transfer high temperature to the glass bottle 19. At this time, the glass bottle 19 breaks, the gravity blocks 13 limit the contact with the sealing strip 12 and rotate. At this time, the nozzle 9 sprays water to form a water curtain to block the spread of dense smoke.
[0032] The base plate 17 can be removed. When the glass bottle 19 breaks, the fragments will fall into the space between the mounting frame 16 and the base plate 17. After a fire, the base plate 17 can be pulled out to remove the fragments. The upper surface of the water tank 6 is provided with a water inlet 20, through which water can be filled into the water tank 6. The side surface of the water tank 6 is provided with a level gauge 21.
[0033] The working principle of this utility model is as follows: the connecting pipe 7 is welded to the water tank 6 through the door frame 1, the water tank 6 is installed on the door frame 1, and the water storage pipe 8 is installed on the door frame 1 through the fixing plate 14 and bolts 15. The gravity block 13 is rotated to install the glass bottle 19 into the bottom of the mounting frame 16 and make contact with the base plate 17. At this time, the gravity block 13 is released so that it contacts the upper end of the glass bottle 19. Water is injected into the water tank 6 through the water inlet 20. When a fire occurs, the temperature rises, and the mounting frame 16 and the base plate 17 transfer the high temperature to the glass bottle 19. The glass bottle 19 breaks, and the gravity block 13 rotates under its own weight, causing the rotating rod 10 to rotate. At this time, the blocking strip 12 rotates away from the nozzle 9, and the nozzle 9 sprays the water in the water tank 6 to form a water curtain, which effectively blocks the dense smoke from passing through. When the water is sprayed down, it cools the left fire door 2, the right fire door 3, the first handle 4 and the second handle 5 to prevent burns to people's hands.
[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A fireproof double door with fire retardant effect, comprising a door frame (1), characterized in that: The rear surface of the door frame (1) is provided with a water tank (6), the front end of the water tank (6) is welded with a connecting pipe (7), one end of the connecting pipe (7) is fixedly connected with a water storage pipe (8), the side surface of the water storage pipe (8) is provided with a plurality of spray heads (9), and the side surface of the water storage pipe (8) is rotatably connected with a rotating rod (10); The side surface of the rotating rod (10) is fixedly connected with a connecting block (11), the lower surface of the connecting block (11) is fixedly connected with a plug (12), both ends of the rotating rod (10) are provided with gravity blocks (13), the side surface of the door frame (1) is fixedly connected with a mounting frame (16), the inner wall of the mounting frame (16) is movably connected with a bottom plate (17), the side surface of the door frame (1) is fixedly connected with a magnet (18), and the upper surface of the bottom plate (17) is movably connected with a glass bottle (19).
2. The fireproof double door with fire retardant effect according to claim 1, characterized in that, The inner wall of the door frame (1) is rotatably provided with a left fireproof door (2), and the inner wall of the door frame (1) is rotatably provided with a right fireproof door (3).
3. The fireproof double door with fire-retardant effect according to claim 2, characterized in that, The side surface of the left fireproof door (2) is provided with a first handle (4), and the side surface of the right fireproof door (3) is provided with a second handle (5).
4. The fireproof double door with fire-retardant effect according to claim 1, characterized in that, The side surface of the connecting pipe (7) penetrates the door frame (1), and the side surface of the water storage pipe (8) is in contact with the door frame (1).
5. The fireproof double door with fire retardant effect according to claim 1, characterized in that, The side surface of the plug (12) is in contact with the water storage pipe (8), the side surface of the water storage pipe (8) is fixedly connected with a fixed plate (14), and the front surface of the fixed plate (14) is threadedly connected with a bolt (15).
6. The fireproof double door with fire-retardant effect according to claim 5, characterized in that, The rear surface of the fixed plate (14) is in contact with the door frame (1), and the side surface of the bolt (15) is threadedly connected with the door frame (1).
7. The fireproof double door with fire retardant effect according to claim 1, characterized in that, The material of the bottom plate (17) is iron, and the side surface of the bottom plate (17) is magnetically connected with the magnet (18).
8. The fireproof double door with fire-retardant effect according to claim 1, characterized in that, The upper surface of the glass bottle (19) is in contact with the gravity block (13), the upper surface of the water tank (6) is provided with a water inlet (20), and the side surface of the water tank (6) is provided with a liquid level meter (21).