Fireproof door capable of preventing fire from spreading for civil air defense engineering
By designing a fitting groove and a fitting fire plate between the fire door and the door frame, as well as the combination of the sealing plate and the sealing frame, the problem of insufficient sealing of the fire door is solved, significantly improving the barrier effect of fire spread and eliminating safety hazards.
Patent Information
- Application Number
- CN202421732053.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The lack of a sealing structure between the existing fire-proof door and the door frame leads to a low sealing ability and the flame is easily spread through the gaps, causing safety hazards for the spread of the fire.
A fire-proof door including a sealing frame A and a sealing frame B is designed. A fitting groove is provided in the sealing frame A, and a fitting fire-proof plate is provided on the side of the main body of the fire-proof door. The sealing plate and the sealing frame B are used in conjunction with the sealing frame B to realize multiple seals between the main body of the fire-proof door and the door frame.
Through the design of the sealing structure, the gap between the fire door and the door frame is significantly reduced, the fire door's blocking effect on the spread of fire is improved, and safety hazards are eliminated.
Smart Images

Figure CN222924367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of civil air defense projects, and more specifically, to a fire door for civil air defense projects that can block the spread of fire. Background Technique
[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity, and heat insulation within a certain period of time. It is installed in fire compartments, evacuation stairwells, vertical shafts, etc., and is a fire separation with a certain fire resistance. Normally open fire doors remain open during normal times for convenient passage of personnel and can be used for fire evacuation in case of a fire; normally closed fire doors should always be in a closed state and can effectively block the invasion of thick smoke and fierce fire after a fire occurs.
[0003] In the prior art, there is a lack of a sealing structure between the fire door and the door frame, resulting in a large gap between the door and the door frame, and thus the sealing performance of the fire door is relatively low. The high temperature generated by a fire on one side is easily transmitted through the door gap to ignite flammable materials on the other side, resulting in a relatively low blocking effect of the fire door on the spread of fire and posing certain safety hazards. In view of this, we propose a fire door for civil air defense projects that can block the spread of fire. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a fire door for civil air defense projects that can block the spread of fire, so as to solve the technical problem that there is a lack of a sealing structure between the current fire door and the door frame, resulting in a large gap between the door and the door frame, and thus the sealing performance of the fire door is relatively low. The high temperature generated by a fire on one side is easily transmitted through the door gap to ignite flammable materials on the other side, resulting in a relatively low blocking effect of the fire door on the spread of fire.
[0005] To solve the above technical problems, the utility model provides the following technical solution: A fire door for civil air defense projects that can block the spread of fire, including a door frame and a fire door main body hingedly installed within the door frame;
[0006] One side of the door frame is detachably installed with a sealing frame A, and a fitting groove is provided within the sealing frame A. One side of the fire door main body is configured with a fitting fire board, and the fitting fire board is fitted and installed within the fitting groove;
[0007] The other side of the fire door main body is fixedly installed with a sealing plate, and one side of the door frame is configured with a sealing frame B that cooperates with the sealing plate.
[0008] The utility model realizes the sealing of the fire door main body and the door frame through the sealing frame A with a fitting groove and the sealing frame B, which are cooperated with the fire door main body provided with a fitting fireproof board and a sealing board. After the fire door main body is closed into the door frame, the fitting fireproof board is inserted into the fitting groove on the sealing frame A, and the sealing board abuts against one side of the sealing frame B, thereby reducing the gap between the door frame and the fire door main body, thus avoiding the problem that the high temperature generated by the flame on one side ignites the flammable materials on the other side, improving the blocking effect of the fire door on the spread of fire, and eliminating potential safety hazards.
[0009] Preferably, a rectangular convex frame is formed on one side of the sealing board, and a sealing groove is formed on one side of the sealing frame B, and the rectangular convex frame is inserted into the sealing groove.
[0010] Preferably, a sealing groove is formed between the sealing frame B and the sealing frame A, and a sealing gasket is fixedly installed in the sealing groove, and the sealing gasket abuts against one side of the fire door main body.
[0011] Preferably, a door closer is fixedly installed at the top of the fire door main body away from the door frame, and one end of the door closer is connected to the door frame.
[0012] Preferably, a lock is fixedly installed on one side inside the fire door main body, and handles are fixedly installed at both ends of the lock extending out of one end of the fire door main body.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0014] 1. The utility model realizes the sealing of the fire door main body and the door frame through the sealing frame A with a fitting groove and the sealing frame B, which are cooperated with the fire door main body provided with a fitting fireproof board and a sealing board. After the fire door main body is closed into the door frame, the fitting fireproof board is inserted into the fitting groove on the sealing frame A, and the sealing board abuts against one side of the sealing frame B, thereby reducing the gap between the door frame and the fire door main body, thus avoiding the problem that the high temperature generated by the flame on one side ignites the flammable materials on the other side, improving the blocking effect of the fire door on the spread of fire, and eliminating potential safety hazards.
[0015] 2. The utility model also realizes the multi-sealing of the door frame and the fire door main body through the sealing board with a rectangular convex frame on one side and the sealing gasket. After the fire door main body is closed into the door frame, the fitting fireproof board will be inserted into the fitting groove, the sealing board will abut against the sealing frame B, the rectangular convex frame will be inserted into the sealing groove on the sealing frame B, and the fire door main body will abut against the sealing gasket, thereby further improving the blocking effect on the flame and high temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic structural diagram of the present utility model in the open door state;
[0018] Figure 3 This is a schematic diagram of the usage state of the present utility model in the right view state;
[0019] Figure 4 This is a schematic diagram for showing the disassembly of the gasket in the present utility model.
[0020] Explanation of the reference numerals in the figure:
[0021] 1. Door frame; 2. Fire door main body; 3. Sealing frame A; 301. Fitting groove; 4. Fitting fireproof board; 5. Sealing board; 6. Rectangular convex frame; 7. Sealing frame B; 8. Sealing groove; 9. Gasket; 10. Lock; 11. Handle. Specific embodiments
[0022] As Figure 1 、 Figure 2 shown, a fire door for civil air defense projects that can block the spread of fire involved in the present utility model includes a door frame 1 and a fire door main body 2 hingedly installed within the door frame 1;
[0023] As Figure 1 、 Figure 2 shown, in an embodiment of the present utility model, to avoid the problem of the high temperature generated by the flame on one side igniting the flammable materials on the other side, so as to improve the blocking effect of the fire door on the spread of fire, a sealing frame A 3 is detachably installed on one side of the door frame 1, and a fitting groove 301 is formed within the sealing frame A 3. A fitting fireproof board 4 is configured on one side of the fire door main body 2, and the fitting fireproof board 4 is fitted and installed within the fitting groove 301. A sealing board 5 is fixedly installed on the other side of the fire door main body 2, and a sealing frame B 7 for cooperating with the sealing board 5 is configured on one side of the door frame 1. By means of the sealing frame A 3 provided with the fitting groove 301 and the sealing frame B 7, and the fire door main body 2 provided with the fitting fireproof board 4 and the sealing board 5, the sealing of the fire door main body 2 and the door frame 1 is achieved. After the fire door main body 2 is closed into the door frame 1, the fitting fireproof board 4 is inserted into the fitting groove 301 on the sealing frame A 3, and the sealing board 5 abuts against one side of the sealing frame B 7, thereby reducing the gap between the door frame 1 and the fire door main body 2, thus avoiding the problem of the high temperature generated by the flame on one side igniting the flammable materials on the other side, improving the blocking effect of the fire door on the spread of fire, and eliminating potential safety hazards.
[0024] As Figure 2 、 Figure 3 、 Figure 4As shown, in the embodiment of the present utility model, in order to further improve the blocking effect on flames and high temperatures, a rectangular convex frame 6 is constructed on one side of the sealing plate 5, and a sealing groove is formed on one side of the sealing frame B7. The rectangular convex frame 6 is inserted into the sealing groove. A sealing groove 8 is formed between the sealing frame B7 and the sealing frame A3, and a sealing gasket 9 is fixedly installed in the sealing groove 8. The sealing gasket 9 abuts against one side of the fire door body 2. Through the sealing plate 5 with a rectangular convex frame 6 on one side and the sealing gasket 9, when the fire door body 2 is closed into the door frame 1, the embedded fireproof board 4 will be inserted into the embedding groove 301, the sealing plate 5 will abut against the sealing frame B7, the rectangular convex frame 6 will be inserted into the sealing groove on the sealing frame B7, and the fire door body 2 will abut against the sealing gasket 9, thereby realizing multiple seals between the door frame 1 and the fire door body 2, and further improving the blocking effect on flames and high temperatures.
[0025] As Figure 2 shown, in the embodiment of the present utility model, in order to realize the daily closing of the fire door, a door closer is fixedly installed at the top of the side of the fire door body 2 away from the door frame 1, and one end of the door closer is connected to the door frame 1. A lock 10 is fixedly installed on one side inside the fire door body 2, and handles 11 are fixedly installed at both ends of the lock 10 extending out of one end of the fire door body 2. The door closer is used to push the fire door body 2 into the door frame 1, and the lock 10 is used to complete the locking of the fire door body 2, realizing the daily closing of the fire door.
[0026] Working principle: This embodiment provides a fire door for civil air defense projects that can block the spread of fire. During use, the door closer is used to keep the fire door body 2 normally closed, and the lock 10 is used to complete the installation of the fire door body 2 on the door frame 1. When the fire door body 2 is closed into the door frame 1, the embedded fireproof board 4 is inserted into the embedding groove 301, the sealing plate 5 abuts against the sealing frame B7, the rectangular convex frame 6 is inserted into the sealing groove on the sealing frame B7, and the fire door body 2 abuts against the sealing gasket 9, thereby realizing multiple seals between the door frame 1 and the fire door body 2, and further improving the blocking effect on flames and high temperatures. The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes, but as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.
Claims
1. A fire door for civil air defense projects that can prevent the spread of fire, characterized in that: It comprises a door frame (1) and a fire door body (2) hingedly installed in the door frame (1); A sealing frame A (3) is detachably mounted on one side of the door frame (1), and a fitting groove (301) is provided in the sealing frame A (3); a fitting fireproofing board (4) is constructed on one side of the fireproof door body (2), and the fitting fireproofing board (4) is fitted in the fitting groove (301); A sealing plate (5) is fixedly mounted on the other side of the fire door body (2), and a sealing frame B (7) cooperating with the sealing plate (5) is constructed on one side of the door frame (1).
2. The fireproof door for civil air defense projects capable of preventing the spread of fire according to claim 1 is characterized in that: A rectangular convex frame (6) is constructed on one side of the sealing plate (5), and a sealing groove is opened on one side of the sealing frame B (7), and the rectangular convex frame (6) is inserted into the sealing groove.
3. The fireproof door for civil air defense projects capable of preventing the spread of fire according to claim 1 is characterized in that: A sealing groove (8) is formed between the sealing frame B (7) and the sealing frame A (3), and a sealing gasket (9) is fixedly installed in the sealing groove (8), and the sealing gasket (9) abuts against one side of the fire door body (2).
4. The fireproof door for civil air defense projects capable of preventing the spread of fire according to claim 1 is characterized in that: A door closer is fixedly mounted on the top of the fire door body (2) on a side away from the door frame (1), and one end of the door closer is connected to the door frame (1).
5. The fireproof door for civil air defense projects capable of preventing the spread of fire according to claim 1 is characterized in that: A lock (10) is fixedly mounted on one side of the fire door body (2), and handles (11) are fixedly mounted on both ends of the lock (10) extending out of the fire door body (2).