Smoke blocking stainless steel fireproof door
By setting sealing strips, sealing edges and sealing step grooves on the door frames and door panels of the fire doors, the problem of smoke leakage in the existing fire doors is solved, and better sealing effect and smoke barrier effect are achieved.
Patent Information
- Application Number
- CN202421198090.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-29
AI Technical Summary
After the two door panels are closed, the existing fire-proof door cannot achieve a good seal, resulting in the flue gas leaking through the door cracks, affecting the smoke barrier effect of the fire-proof door.
Set a seal strip at the center of the door frame, and a sealing edge and sealing step groove are set on the door panel. When the door panel is closed, the sealing edge is embedded in the sealing step groove, combining the sealing sheet and the guide arc surface to enhance the sealing effect.
By increasing the sealing area and structure, the sealing effect between the two door panels is significantly improved, and the risk of smoke leakage is reduced, thereby improving the smoke barrier effect of the fire door.
Smart Images

Figure CN222668045U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fireproof doors, in particular to a smoke-barrier stainless steel fireproof door. Background Art
[0002] A fire door is a door that can meet 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.
[0003] The fire door in the related art usually includes a door frame and two door panels, which are hinged to the door frame to form a double-leaf fire door. However, when the two door panels are closed, the two door panels cannot be well sealed, and smoke is easy to leak through the door gap, thereby affecting the smoke barrier effect of the fire door, which needs to be improved. Utility Model Content
[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a smoke barrier stainless steel fire door, which can improve the sealing effect between the two door panels, reduce the risk of smoke leakage, and thus improve the smoke barrier effect.
[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a smoke-barrier stainless steel fireproof door, comprising a door frame and two door panels, a sealing strip is vertically arranged at the center of the door frame, both ends of the sealing strip are respectively fixedly connected to the door frame, sealing edges are respectively arranged on the two door panels, and sealing step grooves are respectively opened on both sides of the sealing strip. When the door panels are closed, the sealing edges can be embedded in the corresponding sealing step grooves.
[0006] In a preferred example, the utility model can be further configured as follows: an elastic sealing sheet is fixedly connected to the inner wall of the sealing step groove to improve the sealing effect between the sealing edge and the sealing strip.
[0007] In a preferred example, the utility model can be further configured as follows: a guide arc surface is integrally formed on the sealing edge, so that the sealing edge can be smoothly embedded in the corresponding sealing step groove.
[0008] In a preferred example, the utility model can be further configured as follows: sealing plates are fixedly connected to the upper and lower ends of the door panel respectively, the sealing plates are integrally connected with the corresponding sealing edges, and the thickness of the sealing plates and the sealing edges are the same; when the door panel is closed and the sealing edges are embedded in the corresponding sealing step grooves, the sealing plates abut against the door frame.
[0009] In a preferred example, the utility model can be further configured as follows: smoke sensors are respectively arranged on both side surfaces of the door panel, an alarm and a controller are arranged on the door frame, and the smoke sensor and the alarm are respectively wirelessly connected to the controller via a Bluetooth system.
[0010] In a preferred example, the utility model can be further configured as follows: observation windows are respectively provided on the two door panels.
[0011] In summary, the utility model has the following beneficial effects:
[0012] By adding a sealing strip in the middle of the door frame, and the two door panels can form a seal with the sealing strip, the sealing area is effectively increased, thereby improving the sealing effect between the two door panels, reducing the risk of smoke leakage, and thus improving the smoke barrier effect of the fire door. At the same time, by adding sealing plates at the upper and lower ends of the door panels, and the sealing plates can be sealed with the door frame, the overall sealing effect of the fire door is improved, thereby improving the smoke barrier effect of the fire door. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the embodiment;
[0014] Figure 2 is a schematic diagram of the structure of the door panel and the door frame in the embodiment;
[0015] Figure 3 is a cross-sectional view of an embodiment;
[0016] Figure 4 yes Figure 3 A magnified schematic diagram of the middle A area;
[0017] Figure 5 2 is a cross-sectional view of a door panel in an embodiment.
[0018] Figure numerals: 1. door frame; 2. door panel; 3. sealing strip; 4. sealing edge; 5. sealing step groove; 6. guide arc surface; 7. sealing sheet; 8. sealing plate; 9. smoke sensor; 10. alarm; 11. controller; 12. observation window. DETAILED DESCRIPTION
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0020] Reference Figure 1 , Figure 2 A smoke-barrier stainless steel fireproof door comprises a door frame 1 and two door panels 2, wherein the two door panels 2 are connected to the door frame 1 through hinges. A sealing strip 3 made of stainless steel is vertically arranged at the center of the door frame 1, and both ends of the sealing strip 3 are fixedly connected to the door frame 1.
[0021] Reference Figure 3 , Figure 4 The two door panels 2 are respectively integrally connected with sealing edges 4, and sealing step grooves 5 are respectively provided on both sides of the sealing strip 3. When the door panels 2 are closed, the sealing edges 4 can be embedded in the corresponding sealing step grooves 5 to improve the sealing effect between the two door panels 2 and reduce the risk of smoke leakage, thereby improving the smoke barrier effect of the fire door.
[0022] Reference Figure 3 , Figure 4 The sealing edge 4 is integrally formed with a guide arc surface 6 so that the sealing edge 4 can be smoothly embedded in the corresponding sealing step groove 5. The inner wall of the sealing step groove 5 is fixedly connected with an elastic sealing sheet 7 to improve the sealing effect between the sealing edge 4 and the sealing strip 3. In this embodiment, the sealing sheet 7 is made of heat-resistant rubber. Of course, in other embodiments, other materials such as heat-resistant silicone can also be used.
[0023] Reference Figure 1 , Figure 5 The upper and lower ends of the door panel 2 are respectively integrally connected with sealing plates 8, which are integrally connected with the corresponding sealing edges 4, and the thickness of the sealing plates 8 and the sealing edges 4 are the same. When the door panel 2 is closed and the sealing edges 4 are embedded in the corresponding sealing step grooves 5, the sealing plates 8 abut against the door frame 1, thereby improving the sealing effect between the door panel 2 and the door frame 1.
[0024] Reference Figure 1 Smoke sensors 9 are respectively arranged on both sides of the door panel 2, and an alarm 10 and a controller 11 are arranged on the door frame 1. The smoke sensor 9 and the alarm 10 are wirelessly connected to the controller 11 through a Bluetooth system. When a fire occurs and the smoke sensor 9 detects smoke, the smoke sensor 9 transmits a detection signal to the controller 11, and then the controller 11 controls the alarm 10 to sound an alarm to remind people.
[0025] Reference Figure 1 , observation windows 12 are respectively provided on the two door panels 2 to facilitate personnel to observe external conditions, and at the same time, it is convenient for firefighters to observe the fire situation and the location of the fire point, so as to facilitate firefighters to carry out timely fire extinguishing operations.
[0026] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A smoke-barrier stainless steel fireproof door, comprising a door frame (1) and two door panels (2), characterized in that: A sealing strip (3) is vertically arranged at the center of the door frame (1), and the two ends of the sealing strip (3) are respectively fixedly connected to the door frame (1). The two door panels (2) are respectively provided with sealing edges (4). Sealing step grooves (5) are respectively opened at the two sides of the sealing strip (3). When the door panels (2) are closed, the sealing edges (4) can be embedded in the corresponding sealing step grooves (5).
2. The smoke barrier stainless steel fire door according to claim 1, characterized in that: An elastic sealing sheet (7) is fixedly connected to the inner wall of the sealing step groove (5) to improve the sealing effect between the sealing edge (4) and the sealing strip (3).
3. The smoke barrier stainless steel fire door according to claim 1, characterized in that: The sealing edge (4) is integrally formed with a guide arc surface (6) so that the sealing edge (4) can be smoothly embedded in the corresponding sealing step groove (5).
4. The smoke barrier stainless steel fire door according to claim 1, characterized in that: The upper and lower ends of the door panel (2) are respectively fixedly connected with sealing plates (8), and the sealing plates (8) are integrally connected with the corresponding sealing edges (4), and the thickness of the sealing plates (8) and the sealing edges (4) are the same. When the door panel (2) is closed and the sealing edges (4) are embedded in the corresponding sealing step grooves (5), the sealing plates (8) abut against the door frame (1).
5. The smoke barrier stainless steel fire door according to claim 1, characterized in that: Smoke sensors (9) are respectively arranged on the two side surfaces of the door panel (2), an alarm (10) and a controller (11) are arranged on the door frame (1), and the smoke sensor (9) and the alarm (10) are respectively wirelessly connected to the controller (11) via a Bluetooth system.
6. The smoke barrier stainless steel fire door according to claim 1, characterized in that: The two door panels (2) are respectively provided with observation windows (12).