Cooling long-acting fire-resistant fireproof door
By designing an automatic spray cooling system in the fire door, the problem of the surface temperature of the fire door increases during fire is solved, the weather resistance of the fire door is extended, and safety and performance are improved.
Patent Information
- Application Number
- CN202420441141.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-03-07
AI Technical Summary
The surface temperature of existing fire doors increases during fire, which affects the door opening rate and may cause scalding. At the same time, long-term high temperatures will reduce the performance of the fire door and cause the fire to spread.
A fire door system including door frames, water storage tanks, spray pipes and mechanical structures is designed. When the fire spreads and the draw rope is burned, the mechanical structure automatically triggers, and water enters the spray pipe from the water storage tank through the pipe and is sprayed out through the spray assembly to cool the fire door.
By cooling, the fire doors can be extended to the weathering time, improve the fire doors' tolerance, reduce the risk to escapers, and ensure that the fire doors can work normally in the event of a fire.
Smart Images
Figure CN222649849U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire door protection devices, in particular to a fire door capable of cooling and long-term fire resistance. Background Art
[0002] A fire door is a door that meets the requirements of fire resistance, stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with a certain fire resistance installed between fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire and smoke. They can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel.
[0003] At present, commonly used fire doors generally use steel to make door frames, door panel frames and door panels, and fill the door panel frames with heat-insulating refractory materials. When a fire occurs, the fire doors can prevent the spread of fire within a certain period of time. However, as the fire grows and the temperature rises, the surface temperature of the fire doors also rises. When escaping personnel pass through the fire doors, the high temperature of the fire doors not only affects the door opening rate but also easily causes burns. In addition, the continuous high temperature will slowly reduce the performance of the fire doors, thereby causing the fire to spread. Therefore, the present application proposes a fire door that can reduce temperature and has long-term fire resistance to solve the above problems. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a fire door that can reduce temperature and has long-term fire resistance. The technical solution to the problem solved by the utility model is that it includes a door frame, and two opposing fire doors are installed in the door frame, and is characterized in that the upper end of the door frame is fixedly connected to a support plate, the upper end of the support plate is fixedly connected to a water storage tank, the bottom of the water storage tank is fixedly connected to the inlet end of a horizontal pipe, the outlet end of the horizontal pipe is fixedly connected to the inlet end of a vertical pipe, the bottom of the water storage tank is fixedly connected to a spray pipe, the inlet end of the spray pipe is connected to the outlet end of the vertical pipe, and the lower edge of the spray pipe is connected to the outlet end of the vertical pipe. A sprinkler assembly is arranged toward the fire door, the bottom of the vertical pipe is coaxially movably sleeved with a vertical rod, the upper end of the vertical rod is coaxially fixedly connected to a mounting plate, the upper end of the mounting plate is coaxially fixedly connected to a sealing plug for sealing the outlet end of the horizontal pipe, the lower end of the vertical rod is coaxially fixedly connected to a circular disc, the opposite ends of the circular disc and the vertical pipe are fixedly connected to two ends of a spring, the lower end of the circular disc is fixedly connected to an upper pull ring, a grounding block is arranged on one side of the door frame, the grounding block is fixedly connected to a lower pull ring corresponding to the upper pull ring, the upper pull ring is fixedly connected to one end of a pull rope, and the other end of the pull rope is fixedly connected to the lower pull ring.
[0005] Preferably, the spray assembly comprises a plurality of ducts uniformly distributed in the transverse direction and fixedly connected to the lower edge of the spray pipe, and each of the ducts is fixedly connected to a spray head facing the fire door.
[0006] Preferably, the bottom of the vertical tube is fixedly connected to a guide sleeve for the vertical rod to move, the inner bottom surface of the vertical tube is fixedly connected to a sealing ring that is movably mounted on the vertical rod, and the inner wall of the vertical tube is fixedly connected to a retaining ring that abuts against the lower end of the mounting plate.
[0007] Preferably, the upper end of the water storage tank is fixedly connected to a water storage pipe, and a water storage valve is installed on the water storage pipe.
[0008] Preferably, a plurality of clamps evenly distributed laterally are fixedly connected to the lower end of the water storage tank, and each of the clamps is fixedly connected to the spray pipe.
[0009] The beneficial effects of the utility model are:
[0010] 1. When the utility model is in use, when a fire occurs and the fire spreads to the fire door, in order to increase the tolerance time of the fire door, the application is provided to cool the fire door. Initially, the spring is in an extended state under the tension of the pull rope, and the sealing plug is in a state of blocking the outlet of the horizontal pipe. When the fire spreads to the fire door and burns the pull rope, the spring will automatically contract, thereby driving the vertical rod to move upward, and the mounting plate and the sealing plug fixedly connected to the vertical rod will also move upward synchronously. The sealing plug moves upward to break away from the blockage of the horizontal pipe, and the water in the water storage tank will enter the spray pipe through the horizontal pipe and the vertical pipe, and be sprayed out through the spray assembly, cooling the fire door and increasing the weather resistance time of the fire door.
[0011] 2. The utility model has a simple structure and is easy to use. In order to avoid damage to the circuit structure and malfunction during a fire, the application triggers the spray assembly to work through a purely mechanical structure to cool the fire door, ensuring that the application can work normally when a fire occurs. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a stereoscopic view of the utility model from the first perspective.
[0013] Figure 2 It is an enlarged view of area A in the first perspective stereoscopic view of the utility model.
[0014] Figure 3 It is an enlarged view of area B in the first perspective stereoscopic view of the utility model.
[0015] Figure 4 This is a partial three-dimensional cross-sectional view from a second viewing angle of the utility model.
[0016] Figure 5 It is an enlarged view of the C area in the partial stereoscopic cross-sectional view from the second viewing angle of the utility model.
[0017] Figure 6 It is a partial right view of the utility model.
[0018] Figure 7This is a partial stereoscopic view of the utility model from the third viewing angle.
[0019] Reference numerals
[0020] 1. Door frame, 2. Fire door, 3. Support plate, 4. Water tank, 5. Horizontal pipe, 6. Vertical pipe, 7. Sprinkler pipe, 9. Vertical rod, 10. Mounting plate, 11. Sealing plug, 12. Disc, 13. Spring, 14. Upper pull ring, 15. Grounding block, 16. Lower pull ring, 17. Pull rope, 18. Conduit, 19. Sprinkler head, 20. Guide sleeve, 21. Sealing ring, 22. Retaining ring, 23. Water pipe, 24. Water valve, 25. Clamp. DETAILED DESCRIPTION
[0021] The following is combined with Figure 1-7 The specific implementation methods of the utility model are further described in detail.
[0022] Embodiment 1, the technical solution is that when the utility model is in use, when a fire occurs and the fire spreads to the fire door 2, in order to improve the tolerance time of the fire door 2, the present application is provided to cool the fire door 2. Initially, under the tension of the pull rope 17, the spring 13 is in an extended state, and the sealing plug 11 is in a blocking state of the outlet of the transverse pipe 5. When the fire spreads to the fire door 2 and burns the pull rope 17, the spring 13 will automatically contract, thereby driving the vertical rod 9 to move upward, and the mounting plate 10 and the sealing plug 11 fixedly connected to the vertical rod 9 will also move upward synchronously. The sealing plug 11 moves upward to break away from the blocking of the transverse pipe 5, and the water in the water storage tank 4 will enter the spray pipe 7 through the transverse pipe 5 and the vertical pipe 6, and be sprayed out through the spray assembly, cooling the fire door 2 and improving the weather resistance time of the fire door 2. The utility model has a simple structure and is easy to use. In order to avoid damage to the circuit structure and malfunction during a fire, the application triggers the spray assembly to work through a purely mechanical structure to cool the fire door 2, thereby ensuring that the application can work normally when a fire occurs.
[0023] Embodiment 2, based on embodiment 1, specifically, when the utility model is in use, the ground block 15 is fixed on the ground by pouring. Initially, the water tank 4 is full of water, and the pull rope 17 fixed between the upper pull ring 14 and the lower pull ring 16 is in a tensioned state. The pull rope 17 maintains the spring 13 in a stretched state through the disc 12, so that the sealing plug 11 is in a position to block the outlet end of the transverse pipe 5. The retaining ring 22 limits the mounting plate 10, thereby determining the position of the sealing plug 11 to block the outlet end of the transverse pipe 5. The sealing ring 21 seals the connection between the guide sleeve 20 and the vertical rod 9 to prevent the water in the vertical pipe 6 from leaking out through the guide sleeve 20. The spray pipe 7 is fixed under the water tank 4 by the clamp 25
[0024] When a fire occurs and the fire spreads to the fire door 2, the flame burns the pull rope 17, and the disc 12 connected to the pull rope 17 through the upper pull ring 14 loses its restriction. At this time, the spring 13 in a stretched state fixed between the disc 12 and the bottom of the vertical pipe 6 will automatically shrink. The contraction of the spring 13 will drive the vertical rod 9 to move upward along the guide sleeve 20, and then the mounting plate 10 fixedly connected to the vertical rod 9, and the sealing plug 11 on the mounting plate 10 will move upward along the inner wall of the vertical pipe 6. When the sealing plug 11 moves upward to the maximum extent, the sealing plug 11 will no longer block the outlet of the horizontal pipe 5. At this time, the water in the water tank 4 will enter the vertical pipe 6 through the horizontal pipe 5, and then enter the sprinkler pipe 7 through the vertical pipe 6. The water entering the sprinkler pipe 7 is sprayed toward the fire door 2 through the conduit 18 and the sprinkler head 19, thereby continuously cooling the fire door 2.
[0025] Embodiment 3, on the basis of embodiment 2, the support plate 3 on the door frame 1 is fixedly connected to the water tank 4, and a water pipe 23 is provided on the water tank 4. The water pipe 23 can be connected to an external water supply device. When the water valve 24 is opened, water can be supplied to the water tank 4 through the water pipe 23.
Claims
1. A fireproof door capable of cooling and long-term fire resistance, comprising a door frame (1), wherein two fireproof doors (2) opening opposite to each other are installed in the door frame (1), characterized in that: The upper end of the door frame (1) is fixedly connected to a support plate (3), the upper end of the support plate (3) is fixedly connected to a water storage tank (4), the bottom of the water storage tank (4) is fixedly connected to the inlet end of a horizontal pipe (5), the outlet end of the horizontal pipe (5) is fixedly connected to the inlet end of a vertical pipe (6), the bottom of the water storage tank (4) is fixedly connected to a spray pipe (7), the inlet end of the spray pipe (7) is connected to the outlet end of the vertical pipe (6), the lower edge of the spray pipe (7) is arranged with a spray assembly facing the fire door (2), the bottom of the vertical pipe (6) is coaxially movably sleeved with a vertical rod (9), the upper end of the vertical rod (9) is coaxially fixedly connected to a mounting plate (10), the mounting plate (10) is fixedly connected to the mounting plate (11), and the mounting plate (11) is fixedly connected to the mounting plate (12). The upper end of the disk (10) is coaxially fixedly connected with a sealing plug (11) for sealing the outlet end of the horizontal pipe (5); the lower end of the vertical rod (9) is coaxially fixedly connected with a circular disk (12); the ends of the circular disk (12) opposite to the vertical pipe (6) are fixedly connected with two ends of a spring (13); the lower end of the circular disk (12) is fixedly connected with an upper pull ring (14); a grounding block (15) is arranged on one side of the door frame (1); the grounding block (15) is fixedly connected with a lower pull ring (16) corresponding to the upper pull ring (14); the upper pull ring (14) is fixedly connected with one end of a pull rope (17); the other end of the pull rope (17) is fixedly connected to the lower pull ring (16).
2. A fire door capable of cooling and long-term fire resistance according to claim 1, characterized in that: The spray assembly comprises a plurality of ducts (18) uniformly distributed in the transverse direction and fixedly connected to the lower edge of the spray pipe (7), and each of the ducts (18) is fixedly connected to a spray head (19) facing the fire door (2).
3. A fire door capable of cooling and long-term fire resistance according to claim 1, characterized in that: The bottom of the vertical tube (6) is fixedly connected to a guide sleeve (20) for the vertical rod (9) to move, the inner bottom surface of the vertical tube (6) is fixedly connected to a sealing ring (21) that is movably sleeved with the vertical rod (9), and the inner wall of the vertical tube (6) is fixedly connected to a retaining ring (22) that abuts against the lower end of the mounting plate (10).
4. The fire door capable of cooling and long-term fire resistance according to claim 1, characterized in that: The upper end of the water storage tank (4) is fixedly connected to a water storage pipe (23), and a water storage valve (24) is installed on the water storage pipe (23).
5. The fire door capable of cooling and long-term fire resistance according to claim 1, characterized in that: A plurality of clamps (25) evenly distributed in the transverse direction are fixedly connected to the lower end of the water storage tank (4), and each of the clamps (25) is fixedly connected to the spray pipe (7).