Wooden flame-retardant door frame
By using inorganic adhesive flame retardant multi-layer boards and expanded fire-resistant seals in the door frame, an efficient flame retardant door frame is solved, and the problems of low production efficiency and insufficient fire resistance in the existing technology are achieved, and a higher Fire resistance and structural strength ensure effective fire prevention.
Patent Information
- Application Number
- CN202323376802.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-12
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-12
AI Technical Summary
The existing flame retardant door frames are inefficient in production, and have insufficient fire resistance, structural strength and flame retardant smoke retardant sealing properties, resulting in unsatisfactory flame retardant effect.
Using inorganic adhesive flame retardant multi-layer boards and expanded fire-resistant seals, the "┑" fastener and "┙" fastener structure combines the expanded fire-resistant seal and the PU self-adhesive seal to form efficient resistance. The fuel door frame simplifies production process and improves fire resistance.
It improves production efficiency and fire resistance, reduces production costs, significantly enhances the structural strength of the door frame and the flame-retardant smoke sealing, effectively prevents the spread of fire and ensures personal and property safety.
Smart Images
Figure CN222350544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fireproof doors, in particular to a wooden flame-retardant door frame. Background Art
[0002] Wooden fire doors refer to doors whose door frames, door leaf frames, and door leaf panels are made of wood or wood products, and whose fire resistance reaches a certain level. Wooden fire doors have a certain fire resistance limit in fires, which can effectively prevent the spread of fire and protect the safety of buildings.
[0003] The existing flame retardant door frames have low production efficiency due to structural problems during production, and have low fire resistance, structural strength, and flame retardancy and smoke tightness, resulting in unsatisfactory flame retardant effect.
[0004] Therefore, those skilled in the art have proposed a wooden flame-retardant door frame to solve the problems raised in the background art. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a wooden flame retardant door frame to improve the flame retardant performance of the wooden door frame, the wooden flame retardant door frame includes a flame retardant door frame body, a flame retardant buckle line, and a flame retardant seal. The wooden flame retardant door frame includes a first inorganic glue flame retardant multilayer board and a second inorganic glue flame retardant multilayer board. The second inorganic glue flame retardant multilayer board is installed on the outer wall of the first inorganic glue flame retardant multilayer board. The first inorganic glue flame retardant multilayer board and the second inorganic glue flame retardant multilayer board are installed together to form a "┑"-shaped fastener. The flame retardant door frame body is formed by pressing together an intumescent fireproof seal, an intumescent fireproof PU self-adhesive sealing strip, a third inorganic glue flame retardant multilayer board, and a fourth inorganic glue flame retardant multilayer board to form a stepped shape.
[0006] Preferably, the flame retardant fastener comprises a fifth inorganic adhesive flame retardant multilayer board and a sixth inorganic adhesive flame retardant multilayer board, and the fifth inorganic adhesive flame retardant multilayer board and the sixth inorganic adhesive flame retardant multilayer board are bonded together to form a "┙"-shaped fastener line.
[0007] Preferably, the thickness of the first inorganic adhesive flame retardant multilayer board and the sixth inorganic adhesive flame retardant multilayer board are the same, the thickness of the second inorganic adhesive flame retardant multilayer board and the fifth inorganic adhesive flame retardant multilayer board are the same, the thickness of the first inorganic adhesive flame retardant multilayer board and the sixth inorganic adhesive flame retardant multilayer board is three times the thickness of the second inorganic adhesive flame retardant multilayer board and the fifth inorganic adhesive flame retardant multilayer board, and the thickness of the second inorganic adhesive flame retardant multilayer board and the fifth inorganic adhesive flame retardant multilayer board is not less than 5 mm.
[0008] Preferably, the thickness of the third inorganic adhesive flame retardant multilayer board is two to three times the thickness of the fourth inorganic adhesive flame retardant multilayer board, and the second inorganic adhesive flame retardant multilayer board and the fifth inorganic adhesive flame retardant multilayer board are staggered and embedded in the mortise and tenon grooves at the upper and lower ends of the third inorganic adhesive flame retardant multilayer board.
[0009] Preferably, the intumescent fireproof seal is a self-adhesive expanded graphite and EVA composite material, the intumescent fireproof seal is embedded in the upper side wall of the third inorganic adhesive flame-retardant multilayer board, the intumescent fireproof PU self-adhesive sealing strip is a PU flame-retardant high-foaming material, and the intumescent fireproof PU self-adhesive sealing strip is vertically installed on the upper end of the fourth inorganic adhesive flame-retardant multilayer board.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. Compared with the prior art, the flame-retardant door frame, flame-retardant buckle line and flame-retardant seal made of inorganic adhesive flame-retardant multilayer board in the utility model not only simplify the production process, but also can be quickly mechanized and produced on the assembly line, thereby improving production efficiency and greatly reducing production costs. At the same time, it effectively improves the fire resistance, structural strength and flame retardancy and smoke tightness of the door frame. Combined with the double protection of flame-retardant seals and the use of fireproof doors, it can prevent the spread of fire to a certain extent and protect the personal and property safety of the residents. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional schematic diagram of the utility model.
[0013] In the figure: 1. The first inorganic adhesive flame retardant multilayer board; 2. The second inorganic adhesive flame retardant multilayer board; 3. Intumescent fireproof seal; 4. Intumescent fireproof PU self-adhesive sealing strip; 5. The third inorganic adhesive flame retardant multilayer board; 6. The fourth inorganic adhesive flame retardant multilayer board; 7. The fifth inorganic adhesive flame retardant multilayer board; 8. The sixth inorganic adhesive flame retardant multilayer board. DETAILED DESCRIPTION
[0014] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0015] As attached Figure 1 As shown:
[0016] Embodiment 1: The utility model provides a wooden flame-retardant door frame, including a flame-retardant door frame body, a flame-retardant buckle line, and a flame-retardant seal. The wooden flame-retardant door frame includes a first inorganic glue flame-retardant multilayer board 1 and a second inorganic glue flame-retardant multilayer board 2. The second inorganic glue flame-retardant multilayer board 2 is installed on the outer side wall of the first inorganic glue flame-retardant multilayer board 1. The first inorganic glue flame-retardant multilayer board 1 and the second inorganic glue flame-retardant multilayer board 2 are installed together to form a "┑"-shaped buckle. The flame-retardant door frame body is made of an intumescent fireproof seal. The seal 3, the intumescent fireproof PU self-adhesive sealing strip 4, the third inorganic glue flame retardant multilayer board 5, and the fourth inorganic glue flame retardant multilayer board 6 are pressed together to form a step-type, the flame retardant fastener includes a fifth inorganic glue flame retardant multilayer board 7 and a sixth inorganic glue flame retardant multilayer board 8, the fifth inorganic glue flame retardant multilayer board 7 and the sixth inorganic glue flame retardant multilayer board 8 are bonded to form a "┙"-shaped buckle line, the first inorganic glue flame retardant multilayer board 1 and the sixth inorganic glue flame retardant multilayer board 8 have the same thickness, and the second inorganic glue flame retardant The thickness of the multilayer board 2 and the fifth inorganic adhesive flame retardant multilayer board 7 is the same, the thickness of the first inorganic adhesive flame retardant multilayer board 1 and the sixth inorganic adhesive flame retardant multilayer board 8 is three times the thickness of the second inorganic adhesive flame retardant multilayer board 2 and the fifth inorganic adhesive flame retardant multilayer board 7, the thickness of the second inorganic adhesive flame retardant multilayer board 2 and the fifth inorganic adhesive flame retardant multilayer board 7 is not less than 5mm, the thickness of the third inorganic adhesive flame retardant multilayer board 5 is two to three times the thickness of the fourth inorganic adhesive flame retardant multilayer board 6, the second inorganic adhesive flame retardant multilayer board 2 and the fifth inorganic adhesive flame retardant multilayer board 7 are offsetly embedded in the mortise and tenon grooves at the upper and lower ends of the third inorganic adhesive flame retardant multilayer board 5, the intumescent fireproof seal 3 is a self-adhesive expanded graphite and EVA composite material, the intumescent fireproof seal 3 is embedded in the upper position of the side wall of the third inorganic adhesive flame retardant multilayer board 5, the intumescent fireproof PU self-adhesive sealing strip 4 is a PU flame retardant high foaming material, and the intumescent fireproof PU self-adhesive sealing strip 4 is vertically installed on the upper end of the fourth inorganic adhesive flame retardant multilayer board 6.
[0017] Specifically, the prepared wooden flame-retardant door frame has the following properties:
[0018] Density: 1100~1200kg / m 3 ; Fire resistance and heat insulation: >1.0h, the highest temperature rise of the back-fire surface of the test piece door frame is 38°C, fire resistance integrity: >1.0h, no flame appears on the back-fire surface of the test piece, the average smoke temperature is ≤140°, smoke toxicity: reaches the quasi-safety level ZA2, smoke density: smoke density level SDR≤35. Flame retardant level: reaches A2 level.
[0019] From the above, it can be seen that when the door frame needs to be produced, the first inorganic adhesive flame retardant multilayer board 1 and the second inorganic adhesive flame retardant multilayer board 2 are first pressed together, and then the fifth inorganic adhesive flame retardant multilayer board 7 and the sixth inorganic adhesive flame retardant multilayer board 8 are pressed together, and then the third inorganic adhesive flame retardant multilayer board 5, the fourth inorganic adhesive flame retardant multilayer board 6, the intumescent fireproof seal 3, and the intumescent fireproof PU self-adhesive sealing strip 4 are bonded together by mechanical extrusion, and then the first inorganic adhesive flame retardant multilayer board 1, the second inorganic adhesive flame retardant multilayer board 2 and the fifth inorganic adhesive flame retardant multilayer board 7, the sixth inorganic adhesive flame retardant multilayer board 8 are inserted and adhered to the groove of the third inorganic adhesive flame retardant multilayer board 5 to complete the splicing of the door frame.
[0020] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A wooden flame-retardant door frame, comprising a flame-retardant door frame body, a flame-retardant buckle line, and a flame-retardant seal, characterized in that: The wooden flame-retardant door frame comprises a first inorganic glue flame-retardant multilayer board (1) and a second inorganic glue flame-retardant multilayer board (2), wherein the second inorganic glue flame-retardant multilayer board (2) is installed on the outer side wall of the first inorganic glue flame-retardant multilayer board (1), and the first inorganic glue flame-retardant multilayer board (1) and the second inorganic glue flame-retardant multilayer board (2) are installed together to form a "┑"-shaped fastener, and the flame-retardant door frame body is formed by pressing together an intumescent fireproof seal (3), an intumescent fireproof PU self-adhesive sealing strip (4), a third inorganic glue flame-retardant multilayer board (5), and a fourth inorganic glue flame-retardant multilayer board (6) to form a step-type; A flame retardant fastener, wherein the flame retardant fastener is arranged at the bottom end of the third inorganic adhesive flame retardant multilayer board (5).
2. A wooden flame-retardant door frame as claimed in claim 1, characterized in that: The flame retardant fastener comprises a fifth inorganic adhesive flame retardant multilayer board (7) and a sixth inorganic adhesive flame retardant multilayer board (8), and the fifth inorganic adhesive flame retardant multilayer board (7) and the sixth inorganic adhesive flame retardant multilayer board (8) are bonded together to form a "┙"-shaped fastener line.
3. A wooden flame-retardant door frame as claimed in claim 1 or 2, characterized in that: The thickness of the first inorganic adhesive flame retardant multilayer board (1) and the sixth inorganic adhesive flame retardant multilayer board (8) are the same, the thickness of the second inorganic adhesive flame retardant multilayer board (2) and the fifth inorganic adhesive flame retardant multilayer board (7) are the same, the thickness of the first inorganic adhesive flame retardant multilayer board (1) and the sixth inorganic adhesive flame retardant multilayer board (8) is three times the thickness of the second inorganic adhesive flame retardant multilayer board (2) and the fifth inorganic adhesive flame retardant multilayer board (7), and the thickness of the second inorganic adhesive flame retardant multilayer board (2) and the fifth inorganic adhesive flame retardant multilayer board (7) is not less than 5 mm.
4. A wooden flame-retardant door frame as claimed in claim 1 or 2, characterized in that: The thickness of the third inorganic adhesive flame retardant multilayer board (5) is two to three times the thickness of the fourth inorganic adhesive flame retardant multilayer board (6), and the second inorganic adhesive flame retardant multilayer board (2) and the fifth inorganic adhesive flame retardant multilayer board (7) are offsetly embedded in the mortise and tenon grooves at the upper and lower ends of the third inorganic adhesive flame retardant multilayer board (5).
5. A wooden flame-retardant door frame as claimed in claim 1, characterized in that: The intumescent fireproof seal (3) is a self-adhesive expanded graphite and EVA composite material, and the intumescent fireproof seal (3) is embedded in the upper side wall of the third inorganic adhesive flame-retardant multilayer board (5). The intumescent fireproof PU self-adhesive sealing strip (4) is a PU flame-retardant high-foaming material, and the intumescent fireproof PU self-adhesive sealing strip (4) is vertically installed on the upper end of the fourth inorganic adhesive flame-retardant multilayer board (6).