Smoke-isolating fireproof door structure
By designing a sealing gasket structure with a movable frame and a spring connection on the fire door, the door frame pushes the movable frame to achieve sealing, the smoke leakage problem caused by the gap between the rotating side of the fire door and the door frame is solved, and the smoke insulation effect of the fire door is improved.
Patent Information
- Application Number
- CN202421732805.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-22
AI Technical Summary
A gap occurs between the rotating side of the fire door and the door frame, resulting in smoke leakage and poor smoke isolation effect.
A smoke-proof fire-proof door structure is designed, using a movable frame and a spring to connect the sealing gasket. The movable frame is pushed through the door frame to make the sealing gasket in close contact with the door frame, and the spring force is used to achieve sealing to avoid smoke leakage.
The smoke insulation effect of the fire door is improved, ensuring that the smoke does not pass through the gap between the rotating side of the door body and the door frame, and enhancing the sealing of the fire door.
Smart Images
Figure CN223135997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire doors, in particular to a smoke-proof fire door structure. Background Art
[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 a fire separation with a certain fire resistance located in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the function of an ordinary door, a fire door can also prevent the spread of fire and smoke, and can prevent the spread of fire within a certain period of time to ensure the evacuation of personnel.
[0003] The fire door is rotatably connected to the door frame through a hinge. Due to the repeated rotation of the fire door, one side of the fire door connected to the hinge will become loose. After the fire door is closed, there will be a gap between the rotating side of the fire door and the door frame. The smoke generated by the fire passes through the gap between the rotating side of the fire door and the door frame, and the smoke cannot be blocked, resulting in a poor smoke-proof effect of the fire door. Content of the Utility Model
[0004] The purpose of the utility model is to solve the problem that there is a gap between the rotating side of the existing fire door and the door frame, the smoke cannot be blocked, and the smoke-proof effect of the fire door is poor, and a smoke-proof fire door structure is proposed.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] Design a smoke-proof fire door structure, including a fire door body. A groove is opened on the fire door body. The groove and the hinge are on the same side. A smoke-proof mechanism is connected to the groove.
[0007] The smoke-proof mechanism includes a movable frame. The movable frame is slidably connected to the groove. Two parallel movable grooves are opened in the groove. Two parallel foot plates are fixedly connected to the movable frame. One end of each foot plate is slidably connected to a different movable groove. A gap groove is opened between the movable frame and the fire door body. The movable groove communicates with the groove. A spring is fixedly connected to the movable frame. The spring is located in the movable groove. One end of the spring is fixedly connected to the fire door body. A sealing pad is fixedly connected to the movable frame.
[0008] Preferably, a fireproof coating layer is sprayed on the fire door body.
[0009] Preferably, the side of the sealing pad away from the movable frame is an arc surface.
[0010] Preferably, a plurality of springs are provided and are equally spaced along the length direction of the movable frame.
[0011] Preferably, the movable frame and the foot plate are of an integral structure.
[0012] Preferably, a sealing mechanism is fixedly connected to the fire door body. The sealing mechanism includes a fireproof board which is fixedly connected to the fire door body. An open groove is formed between the fireproof board and the side of the fire door body. A sealing ring is fixedly connected to the open groove, and the sealing ring is in contact with the door frame.
[0013] Preferably, the fireproof board is a refractory fiber board.
[0014] The beneficial effects of a smoke isolation and fireproof door structure proposed by the present utility model are as follows:
[0015] By pushing and pressing the sealing gasket through the door frame, the sealing gasket pushes and presses the movable frame. After the movable frame moves, it squeezes the spring. After the spring is compressed, it generates elastic force. Under the action of the elastic force of the spring, the sealing gasket is in close contact with the door frame. The sealing gasket seals the gap between the rotating side of the fire door body and the door frame, preventing smoke from passing through the gap between the rotating side of the fire door body and the door frame, and improving the smoke isolation effect of the fire door. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural view of a smoke isolation and fireproof door structure proposed by the present utility model Figure 1 ;
[0017] Figure 2 is a schematic structural view of a smoke isolation and fireproof door structure proposed by the present utility model Figure 2 ;
[0018] Figure 3 is a schematic cross-sectional structural view of a smoke isolation and fireproof door structure proposed by the present utility model;
[0019] Figure 4 is Figure 3 a partial enlarged structural view at A in
[0020] In the figure: 1, fire door body; 2, hinge; 3, door frame; 4, groove; 5, smoke isolation mechanism; 6, sealing mechanism; 51, movable frame; 52, foot plate; 53, movable groove; 54, clearance groove; 55, spring; 56, sealing gasket; 61, fireproof board; 62, sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0022] Example 1: Refer toFigures 1-4 , a smoke-proof fire door structure, including a fire door body 1, a fireproof coating layer is sprayed on the fire door body 1, the fire door body 1 is rotatably connected to the door frame 3 through a hinge 2, a groove 4 is opened on the fire door body 1, the groove 4 and the hinge 2 are on the same side, and a smoke separation mechanism 5 is connected to the groove 4;
[0023] The smoke separation mechanism 5 includes a movable frame 51, the movable frame 51 is slidably connected to the groove 4, two parallel movable grooves 53 are opened in the groove 4, two parallel foot plates 52 are fixedly connected to the movable frame 51, and one end of each foot plate 52 is slidably connected to different movable grooves 53. The movable frame 51 and the foot plates 52 are of an integral structure. A clearance groove 54 is opened between the movable frame 51 and the fire door body 1. The movable groove 53 communicates with the groove 4. A spring 55 is fixedly connected to the movable frame 51. There are several springs 55 and they are equally spaced along the length direction of the movable frame 51. The spring 55 is located in the movable groove 53. One end of the spring 55 is fixedly connected to the fire door body 1. A sealing gasket 56 is fixedly connected to the movable frame 51. The side of the sealing gasket 56 away from the movable frame 51 is an arc surface, and the sealing gasket 56 is in contact with the door frame 3.
[0024] Working principle:
[0025] When the fire door body 1 is in the open state, the sealing gasket 56 extends out of the groove 4. During the closing process of the fire door body 1, the sealing gasket 56 gradually contacts the door frame 3. The door frame 3 presses the sealing gasket 56. The sealing gasket 56 presses the movable frame 51. The movable frame 51 moves smoothly under the guidance of the foot plates 52. After the movable frame 51 moves, it compresses the spring 55. After the spring 55 is compressed, it generates an elastic force. The elastic force generated by the spring 55 pushes the movable frame 51. The movable frame 51 is in close contact with the door frame 3 through the sealing gasket 56. After the fire door body 1 is completely closed, under the action of the elastic force of the spring 55, the sealing gasket 56 is in close contact with the door frame 3. The sealing gasket 56 seals the gap between the rotating side of the fire door body 1 and the door frame 3, preventing smoke from passing through the gap between the rotating side of the fire door body 1 and the door frame 3, and improving the smoke separation effect of the fire door.
[0026] Embodiment 2: In Embodiment 1, after sealing the gap between the rotating side of the fire door body 1 and the door frame 3 through the sealing gasket 56, the sealing performance between the side of the fire door body 1 and the door frame 3 is poor. Refer to Figure 2, as another preferred embodiment of the present utility model, on the basis of Embodiment 1, a sealing mechanism 6 is fixedly connected to the fire door body 1. The sealing mechanism 6 includes a fireproof board 61 which is fixedly connected to the fire door body 1. The fireproof board 61 is a refractory fiber board. An open groove is formed between the fireproof board 61 and the side of the fire door body 1. A sealing ring 62 is fixedly connected to the open groove. The sealing ring 62 is in contact with the door frame 3. After the fire door body 1 is completely closed, the sealing ring 62 is located between the fire door body 1 and the door frame 3 to seal the gap between the side of the fire door body 1 and the door frame 3, thereby improving the sealing performance between the side of the fire door body 1 and the door frame 3.
[0027] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A smoke-proof and fire-proof door structure, comprising a fire-proof door body (1), wherein the fire-proof door body (1) is rotatably connected to a door frame (3) through a hinge (2), and is characterized in that, Wherein: A groove (4) is formed in the fire door body (1), and the groove (4) and the hinge (2) are on the same side. A smoke separation mechanism (5) is connected to the groove (4). The smoke separation mechanism (5) includes a movable frame (51). The movable frame (51) is slidably connected to the groove (4). Two parallel movable grooves (53) are formed in the groove (4). Two parallel foot plates (52) are fixedly connected to the movable frame (51). One end of each foot plate (52) is slidably connected to a different movable groove (53). A clearance groove (54) is formed between the movable frame (51) and the fire door body (1). The movable groove (53) communicates with the groove (4). A spring (55) is fixedly connected to the movable frame (51). The spring (55) is located in the movable groove (53). One end of the spring (55) is fixedly connected to the fire door body (1). A sealing gasket (56) is fixedly connected to the movable frame (51).
2. The structure of the smoke-proof and fire-proof door according to claim 1, characterized in that, A fireproof coating layer is sprayed on the fire door body (1).
3. The structure of the smoke-proof and fire-proof door according to claim 1, characterized in that, One side of the sealing gasket (56) away from the movable frame (51) is an arc surface.
4. The structure of the smoke-proof and fire-proof door according to claim 1, wherein, A plurality of springs (55) are provided and are equally spaced along the length direction of the movable frame (51).
5. The smoke isolation and fire prevention door structure according to claim 1, characterized in that, The movable frame (51) and the foot plate (52) are of an integral structure.
6. The structure of the smoke-proof and fire-proof door according to claim 1, characterized in that, A sealing mechanism (6) is fixedly connected to the fire door body (1). The sealing mechanism (6) includes a fireproof board (61). The fireproof board (61) is fixedly connected to the fire door body (1). An open groove is formed between the fireproof board (61) and the side of the fire door body (1). A sealing ring (62) is fixedly connected to the open groove. The sealing ring (62) is in contact with the door frame (3).
7. The structure of the smoke and fire separation door according to claim 5, characterized in that, The fireproof board (61) is a refractory fiber board.