Metal-coated fireproof door
By adopting metal cover design and fire-proof filling foam in the fire door, the problem of rapid carbonization of traditional wooden fire doors under fierce fire is solved, achieving longer fire resistance and better mechanical properties.
Patent Information
- Application Number
- CN202421115455.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Traditional wooden fire doors rapidly carbonize under fierce fire, resulting in reduced mechanical properties and shorter effective fire protection time.
The metal-covered fire door design is adopted, including wooden door core, fire-proof fill foam, second frame-shaped metal cladding and first frame-shaped metal cladding. The connection stability is enhanced through welding fixing of the plug and ferrule and the use of quartz-filled seam belt.
Provide better protection under fire, extend fire resistance, maintain good mechanical properties, and avoid cracking and other phenomena.
Smart Images
Figure CN222595924U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fireproof doors, in particular to a metal-clad fireproof door. Background Art
[0002] Traditional fire doors are mostly made of wood. Fire-resistant materials are sprayed or impregnated on the surface of the wood to slow down the fire. However, the rapid carbonization of wood under intense fire will greatly reduce its mechanical properties, and the effective fire protection time is short. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a metal clad fireproof door is provided, which solves the above problems.
[0004] The utility model solves the technical problem by adopting the following technical solutions:
[0005] A metal-clad fireproof door comprises a wooden door core and fireproof filling foam glued and fixed to the outside of the wooden door core, a second frame-shaped metal cladding and a first frame-shaped metal cladding are symmetrically arranged on the front and back sides of the wooden door core, an insert tube and an insert core are welded and fixed at intervals on the inner walls of the second frame-shaped metal cladding and the first frame-shaped metal cladding, the insert tube is a hollow structure and is provided with symmetrical bayonet holes on the side, and two hooks are provided at the front end of the insert core, which are inserted into the insert tube and clamped at the bayonet holes to form a connection.
[0006] Preferably, the insert core and the insert tube are arranged on the first frame-shaped metal cladding and the second frame-shaped metal cladding in a grid matrix array, which effectively enhances the connection stability between the first frame-shaped metal cladding and the second frame-shaped metal cladding and the connection stability with the wooden door core.
[0007] Preferably, the distance between two adjacent cores or two adjacent tubes is no more than three times the thickness of the wooden door core, and the stability of the device is ensured by the cooperation of the densely arranged cores and tubes.
[0008] Preferably, an annular gap is provided between the first frame-shaped metal covering and the second frame-shaped metal covering, and a quartz filling sealing tape is fixed at the gap, and the quartz filling sealing tape is fixedly connected to the inner walls of the first frame-shaped metal covering and the second frame-shaped metal covering and the outer wall of the fireproof filling foam by gluing.
[0009] Preferably, a door edge locking nail is threadedly connected to the side of the second frame-shaped metal cladding, and the door edge locking nail fixes the second frame-shaped metal cladding to the wooden door core.
[0010] Preferably, the door edge locking nail is provided with a threaded connection on the side of the first frame-shaped metal covering, and the door edge locking nail fixes the first frame-shaped metal covering and the wooden door core to ensure the side connection stability of the first frame-shaped metal covering and the second frame-shaped metal covering and the wooden door core.
[0011] The advantages and positive effects of the utility model are: the metal covering can have better protection performance under fierce fire, the weight of the door is controlled by using the wooden structure as the matrix, the fireproof filling foam can effectively block the heat transfer to the wooden door core to ensure its good condition, the fireproof door can maintain the fireproof effect for a longer time, and can always maintain good mechanical properties during the fireproof process to avoid cracking and the like. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0013] Figure 1 It is a structural schematic diagram of the utility model;
[0014] Figure 2 yes Figure 1 A side view structural schematic diagram of;
[0015] Figure 3 yes Figure 2 Schematic diagram of the internal structure;
[0016] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure of the middle insert 18 and the insert sleeve 17.
[0017] The marks in the accompanying drawings are described as follows: 10, first frame-shaped metal covering; 12, quartz filling seam tape; 13, second frame-shaped metal covering; 14, door edge lock nail; 15, wooden door core; 16, fireproof filling foam; 17, insert tube; 18, insert core; 19, bayonet; 20, hook head. DETAILED DESCRIPTION
[0018] Now, the utility model is further described in detail in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, so they only show the components related to the utility model. The following is a further detailed description of the embodiments of the utility model in conjunction with the accompanying drawings:
[0019] like Figure 1-4As shown, a metal-clad fireproof door described in the utility model includes a wooden door core 15 and a fireproof filling foam 16 glued and fixed to the outside of the wooden door core 15, a second frame-shaped metal cladding 13 and a first frame-shaped metal cladding 10 are symmetrically arranged on the front and back of the wooden door core 15, and an insert 17 and an insert core 18 are welded and fixed to the inner walls of the second frame-shaped metal cladding 13 and the first frame-shaped metal cladding 10 at intervals, the insert 17 is a hollow structure and is provided with symmetrical bayonet holes 19 on the side, and two hooks 20 are provided at the front end of the insert core 18, and the hooks 20 are inserted into the insert 17 and then clamped at the bayonet holes 19 to form a connection.
[0020] Preferably, the core insert 18 and the tube insert 17 are arranged in a grid matrix array on the first frame-shaped metal cladding 10 and the second frame-shaped metal cladding 13, which effectively enhances the connection stability between the first frame-shaped metal cladding 10 and the second frame-shaped metal cladding 13 and the connection stability with the wooden door core 15.
[0021] Preferably, the distance between two adjacent cores 18 or two adjacent insert tubes 17 is no more than three times the thickness of the wooden door core 15 , and the stability of the device is ensured by the cooperation of the densely arranged cores 18 and insert tubes 17 .
[0022] Preferably, an annular gap is provided between the first frame-shaped metal cladding 10 and the second frame-shaped metal cladding 13, and a quartz filling sealing tape 12 is fixed at the gap, and the quartz filling sealing tape 12 is fixedly connected to the inner walls of the first frame-shaped metal cladding 10 and the second frame-shaped metal cladding 13 and the outer wall of the fireproof filling foam 16 by gluing.
[0023] Preferably, a door edge locking nail 14 is threadedly connected to the side of the second frame-shaped metal cladding 13 , and the door edge locking nail 14 fixes the second frame-shaped metal cladding 13 and the wooden door core 15 together.
[0024] Preferably, the door edge locking nail 14 is provided with a threaded connection on the side of the first frame-shaped metal cladding 10, and the door edge locking nail 14 fixes the first frame-shaped metal cladding 10 and the wooden door core 15 to ensure the side connection stability of the first frame-shaped metal cladding 10 and the second frame-shaped metal cladding 13 and the wooden door core 15.
[0025] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manner derived by those skilled in the art based on the technical solution of the present invention also falls within the scope of protection of the present invention.
Claims
1. A metal-clad fire door, characterized in that: The invention comprises a wooden door core (15) and a fireproof filling foam (16) glued and fixed to the outside of the wooden door core (15); a second frame-shaped metal cladding (13) and a first frame-shaped metal cladding (10) are symmetrically arranged on the front and rear sides of the wooden door core (15); an insert (17) and an insert core (18) are welded and fixed to the inner walls of the second frame-shaped metal cladding (13) and the first frame-shaped metal cladding (10) at intervals; the insert (17) is a hollow structure and is provided with symmetrical bayonet holes (19) on the side; two hooks (20) are provided at the front end of the insert core (18); the hooks (20) are inserted into the insert (17) and are locked at the bayonet holes (19) to form a connection.
2. A metal-clad fire door according to claim 1, characterized in that: The insert core (18) and the insert tube (17) are arranged on the first frame-shaped metal cladding (10) and the second frame-shaped metal cladding (13) in a grid-shaped matrix array, effectively enhancing the connection stability between the first frame-shaped metal cladding (10) and the second frame-shaped metal cladding (13) and the connection stability with the wooden door core (15).
3. A metal-clad fire door according to claim 2, characterized in that: The distance between two adjacent insert cores (18) or two adjacent insert tubes (17) is no greater than three times the thickness of the wooden door core (15), and the stability of the device is ensured by the coordination of the densely arranged insert cores (18) and the insert tubes (17).
4. A metal-clad fire door according to claim 3, characterized in that: An annular gap is provided between the first frame-shaped metal cladding (10) and the second frame-shaped metal cladding (13), and a quartz filling joint sealing tape (12) is fixedly provided at the gap, the quartz filling joint sealing tape (12) being fixedly connected to the inner walls of the first frame-shaped metal cladding (10) and the second frame-shaped metal cladding (13) and the outer wall of the fireproof filling foam (16) by gluing.
5. A metal-clad fire door according to claim 4, characterized in that: A door edge locking nail (14) is threadedly connected to the side of the second frame-shaped metal cladding (13), and the door edge locking nail (14) fixes the second frame-shaped metal cladding (13) and the wooden door core (15).
6. A metal-clad fire door according to claim 5, characterized in that: The door edge locking nail (14) is threadedly connected to the side of the first frame-shaped metal cladding (10), and the door edge locking nail (14) fixes the first frame-shaped metal cladding (10) and the wooden door core (15) to ensure the stability of the side connection between the first frame-shaped metal cladding (10) and the second frame-shaped metal cladding (13) and the wooden door core (15).