Fireproof door sealing structure
By introducing components such as guide seats, return springs, and sealing frames into fire doors, the problems of unstable closure and insufficient sealing of fire doors have been solved, achieving higher stability and sealing performance and improving the fire resistance of fire doors.
Patent Information
- Application Number
- CN202520520795.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing fire doors rely on a single lock, resulting in poor stability and sturdiness after closing, and insufficient sealing between the door and the frame, posing a safety hazard of fire spread.
The protective components include a guide seat and a return spring, which are inserted into the slot of the fire door body by a positioning pin to increase the closing stability. At the same time, a sealing frame and a sealing gasket are used to increase the sealing performance. The combination of a damping pin and a lifting component ensures the stability and sealing of the fire door.
It improves the closing stability and robustness of fire doors, enhances the sealing between fire doors and door frames, prevents the spread of fire, and improves safety.
Smart Images
Figure CN223937979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire door technology, specifically a fire door sealing structure. Background Technology
[0002] Fire doors are a special type of door, mainly used as fire-resistant partitions for fire-resistant zones and evacuation routes. They are normally kept open for easy passage, but in the event of a fire, they can be used for fire evacuation. Fire doors can not only effectively block the invasion of thick smoke and flames, but also prevent the spread of fire for a certain period of time, ensuring the evacuation of personnel.
[0003] When a fire occurs in a room with fire doors, hot air can easily be generated. However, existing fire doors rely on a single lock to close, resulting in poor stability and sturdiness after closure. The continuous impact of the airflow can easily cause the fire door to open, leading to the spread of fire and poor safety. Furthermore, the seal between the fire door and the door frame is poor after closure. Utility Model Content
[0004] To address the problems of poor stability, robustness, and security of existing fire doors that rely solely on a single lock, as well as poor sealing between the fire door and the door frame after closure, the purpose of this utility model is to provide a fire door sealing structure.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a fire door sealing structure, including a door frame, a fire door body rotatably installed inside the door frame via hinges, protective components symmetrically installed on one side of the door frame, the protective components including a guide seat, the guide seat slidably installed inside the door frame, a positioning pin fixedly installed on the bottom surface of the guide seat, a return spring symmetrically installed on the top surface of the guide seat, the positioning pin being slidably inserted into the fire door body through the guide seat and the return spring, a connector fixedly installed on one side of the guide seat, a lifting member fixedly installed at the end of the connector away from the guide seat, the lifting member cooperating with the guide seat through the connector.
[0006] Preferably, a sealing frame is fixedly installed inside the door frame on one side of the fire door body, and a sealing gasket is fixedly installed inside the sealing frame. The sealing gasket cooperates with the fire door body. A protective groove is symmetrically opened on one side of the door frame, and the lifting component is slidably installed in the protective groove.
[0007] Preferably, a fixing seat is fixedly installed on one side of the top surface of the lifting member, and a damping pin is inserted into the fixing seat. The damping pin is inserted into one side of the protective groove, and a positioning hole is opened on one side of the protective groove. The damping pin is inserted into the positioning hole.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] 1. In this utility model, the fire door body is closed by two protective components in conjunction with a door lock. After the fire door body is closed, the positioning pin is controlled to be inserted into the corresponding slot of the fire door body by the guide seat and return spring in the protective components, thereby increasing the stability and firmness of the fire door body after it is closed.
[0010] 2. In this utility model, after the fire door body is closed, one side is attached to the sealing frame, and with the cooperation of the sealing gasket inside the sealing frame, the sealing performance of the fire door body after closing is increased. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a schematic diagram of the unfolded structure of the fire door body of this utility model.
[0014] Figure 3 This is a schematic diagram of the door frame structure of this utility model.
[0015] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.
[0016] In the diagram: 1. Door frame; 11. Protective groove; 2. Fire door body; 21. Slot; 22. Door lock; 23. Handle; 3. Protective component; 31. Guide seat; 32. Positioning pin; 33. Return spring; 34. Connector; 35. Lifting component; 4. Sealing frame; 41. Sealing gasket; 5. Fixing seat; 51. Damping pin; 511. Positioning hole. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example: Figure 1-4 As shown, this utility model provides a fire door sealing structure, including a door frame 1, a fire door body 2 rotatably installed inside the door frame 1 via a hinge, a protective component 3 symmetrically installed on one side of the door frame 1, the protective component 3 including a guide seat 31, the guide seat 31 slidably installed inside the door frame 1, a positioning pin 32 fixedly installed on the bottom surface of the guide seat 31, a return spring 33 symmetrically installed on the top surface of the guide seat 31, the positioning pin 32 slidably inserted into the fire door body 2 through the guide seat 31 and the return spring 33, a connector 34 fixedly installed on one side of the guide seat 31, a lifting component 35 fixedly installed at the end of the connector 34 away from the guide seat 31, the lifting component 35 cooperating with the guide seat 31 through the connector 34;
[0019] The fire door body 2 is installed and fixed in the designated door opening through the door frame 1. The fire door body 2 is closed by two protective components 3 in conjunction with the door lock 22. After the fire door body 2 is closed, the positioning pin 32 is inserted into the corresponding slot 21 of the fire door body 2 by the cooperation of the guide seat 31 and the return spring 33 in the protective component 3, which increases the stability and firmness of the fire door body 2 after it is closed. When it is necessary to open or close the fire door body 2, the positioning pin 32 is removed from the corresponding slot 21 by the guide seat 31 controlled by the lifting component 35 and the connecting component 34, and the fire door body 2 can be opened by cooperating with the door lock 22.
[0020] A sealing frame 4 is fixedly installed inside the door frame 1 on one side of the fire door body 2. A sealing gasket 41 is fixedly installed inside the sealing frame 4. The sealing gasket 41 cooperates with the fire door body 2. After the fire door body 2 is closed, one side is in contact with the sealing frame 4. With the cooperation of the sealing gasket 41 inside the sealing frame 4, the sealing performance of the fire door body 2 after closing is increased.
[0021] A protective groove 11 is symmetrically provided on one side of the door frame 1. The lifting component 35 is slidably installed in the protective groove 11. The protective groove 11 completes the protection of the corresponding lifting component 35, preventing the lifting component 35 from being exposed and damaged, thus affecting the normal operation of the protective component 3.
[0022] A fixing seat 5 is fixedly installed on one side of the top surface of the lifting component 35. A damping pin 51 is inserted into the fixing seat 5. The damping pin 51 is inserted into one side of the protective groove 11. When the positioning pin 32 is taken out from the fire door body 2 by the lifting component 35, the damping pin 51 installed in the fixing seat 5 is inserted into the corresponding positioning hole 511 to complete the positioning after the positioning pin 32 is taken out, so as to prevent it from affecting the normal opening and closing of the fire door body 2. After the fire door body 2 is closed, the damping pin 51 is taken out from the corresponding positioning hole 511 to ensure that the positioning pin 32 works normally.
[0023] The fire door body 2 has slots 21 on both sides, and the positioning pins 32 are slidably inserted into the slots 21. The corresponding positioning pins 32 are inserted and positioned by the slots 21 on both sides of the fire door body 2.
[0024] A door lock 22 is provided on one side of the fire door body 2. A handle 23 is installed on one side of the fire door body 2 below the door lock 22. The door lock 22 is used to complete the positioning work after the fire door body 2 is closed. The handle 23 is used to control the opening and closing of the fire door body 2. A positioning hole 511 is provided on one side of the protective groove 11. The damping pin 51 is inserted into the positioning hole 511. The positioning hole 511 on one side of the protective groove 11 is used to complete the insertion and positioning of the corresponding damping pin 51.
[0025] Working principle: The fire door body 2 is installed and fixed in the designated door opening through the door frame 1. The fire door body 2 is closed by two protective components 3 in conjunction with the door lock 22. After the fire door body 2 is closed, the positioning pin 32 is inserted into the corresponding slot 21 of the fire door body 2 by the cooperation of the guide seat 31 and the return spring 33 in the protective component 3, which increases the stability and firmness of the fire door body 2 after it is closed. When it is necessary to open or close the fire door body 2, the positioning pin 32 is removed from the corresponding slot 21 by the guide seat 31 controlled by the lifting component 35 and the connecting component 34, and the fire door body 2 can be opened by cooperating with the door lock 22.
[0026] After the positioning pin 32 is removed from the fire door body 2 by the lifting member 35, the damping pin 51 installed in the fixing seat 5 is inserted into the corresponding positioning hole 511 to complete the positioning after the positioning pin 32 is removed, so as to prevent it from affecting the normal opening and closing of the fire door body 2. After the fire door body 2 is closed, the damping pin 51 is removed from the corresponding positioning hole 511 to ensure that the positioning pin 32 works normally.
[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A fire door sealing structure, comprising a door frame (1), characterized in that: The fire door body (2) is rotatably installed inside the door frame (1) via a hinge. A protective component (3) is symmetrically installed on one side of the door frame (1). The protective component (3) includes a guide seat (31). The guide seat (31) is slidably installed inside the door frame (1). A positioning pin (32) is fixedly installed on the bottom surface of the guide seat (31). A return spring (33) is symmetrically installed on the top surface of the guide seat (31). The positioning pin (32) is slidably inserted into the fire door body (2) through the guide seat (31) and the return spring (33). A connector (34) is fixedly installed on one side of the guide seat (31). A lifting component (35) is fixedly installed at the end of the connector (34) away from the guide seat (31). The lifting component (35) cooperates with the guide seat (31) through the connector (34).
2. The fire door sealing structure as described in claim 1, characterized in that, A sealing frame (4) is fixedly installed inside the door frame (1) on one side of the fire door body (2). A sealing gasket (41) is fixedly installed inside the sealing frame (4). The sealing gasket (41) cooperates with the fire door body (2).
3. The fire door sealing structure as described in claim 1, characterized in that, The door frame (1) has symmetrical protective grooves (11) on one side, and the lifting member (35) is slidably installed in the protective grooves (11).
4. The fire door sealing structure as described in claim 3, characterized in that, A fixing seat (5) is fixedly installed on one side of the top surface of the lifting member (35). A damping pin (51) is inserted into the fixing seat (5). The damping pin (51) is inserted into one side of the protective groove (11).
5. The fire door sealing structure as described in claim 1, characterized in that, The fire door body (2) has slots (21) on both sides, and the positioning pin (32) is slidably inserted into the slot (21).
6. The fire door sealing structure as described in claim 1, characterized in that, A door lock (22) is provided on one side of the fire door body (2), and a handle (23) is installed on one side of the fire door body (2) below the door lock (22).
7. The fire door sealing structure as described in claim 4, characterized in that, A positioning hole (511) is provided on one side of the protective groove (11), and the damping pin (51) is inserted into the positioning hole (511) for damping.