Steel-wood heat insulation fireproof door
By using steel-wood structure and multi-layer fireproof materials in fire doors, the frame stability and thermal insulation performance are enhanced, which solves the problem of structural instability of traditional fire doors during fire and achieves higher safety and thermal insulation effects.
Patent Information
- Application Number
- CN202422737622.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Traditional fire doors have poor insulation effect during fires, changes in the wood fiber structure lead to reduced strength, easy collapse, insufficient structural stability and safety.
It adopts a steel and wood structure, including longitudinal steel square tube frame and transverse alloy square tube frame, combined with flame retardant fiberboard, calcium silicate fireproof board, perlite fireproof board, fireproof rock wool board and flame retardant plywood to strengthen the frame structure, and uses fire-retardant coating and heat-insulating reflective coating to delay heat transfer and enhance fire resistance.
The thermal insulation effect and structural stability of fire doors are improved, making them able to withstand flames and external force impacts, reducing the impact of fire on the space on the other side, avoiding collapse, and enhancing safety in use.
Smart Images
Figure CN223330459U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of safety fireproof doors, in particular to a steel-wood heat-insulating fireproof door. Background Art
[0002] A door is an entrance or exit of a building or a device installed at an entrance or exit that can be opened and closed. It is an entity that divides a limited space and can connect and block the entrances and exits of two or more spaces. 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 mainly used for fire separation of buildings.
[0003] At present, the thermal insulation effect of traditional fire doors is poor. When encountering a fire, the wood will be affected by the high temperature, and its internal fiber structure will change, resulting in a decrease in strength. As a result, the overall structure of the fire door will change significantly, the strength will drop sharply, and it will be prone to collapse, which is not safe enough. Utility Model Content
[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a steel-wood insulated fire door. The fire door with this structure can withstand flame burning for a certain period of time without being easily penetrated, slowing down the speed of heat transfer to the other side of the door, reducing the impact of the fire on the space on the other side of the door, and at the same time, the fire door has good thermal insulation effect, and the longitudinal steel square tube frame and the transverse alloy square tube frame provide a solid frame structure for the fire door, which can withstand greater pressure and impact force, ensure the structural stability of the door, avoid large changes in the internal structure and a sudden drop in strength in the event of a fire, reduce the occurrence of collapse, and enhance the safety of the fire door.
[0005] To achieve the above-mentioned objectives, the present invention also provides the above-mentioned steel-wood thermal insulation fireproof door, including: a steel-wood thermal insulation fireproof door, including: a panel, the rear surface of the panel is provided with a flame-retardant fiberboard, the rear surface of the flame-retardant fiberboard is provided with a calcium silicate fireproof board, the rear surface of the calcium silicate fireproof board is provided with a longitudinal steel square tube frame, the left surface of the longitudinal steel square tube frame is fixedly connected with a transverse alloy square tube frame, the rear surface of the transverse alloy square tube frame is provided with a perlite fireproof board, the rear surface of the perlite fireproof board is provided with a fireproof rock wool board, the rear surface of the fireproof rock wool board is provided with a flame-retardant plywood, the upper surface of the transverse alloy square tube frame is fixedly connected with a honeycomb paper core board, the rear surface of the honeycomb paper core board is provided with a glass fiber board, the rear surface of the glass fiber board is provided with a polyurethane foam board, and the lower surface of the panel is fixedly connected with a fireproof expansion sealing strip.
[0006] According to the steel-wood thermal insulation fire door, the lower surface of the glass fiber board is fixedly connected to the transverse alloy square tube frame, and the lower surface of the polyurethane foam board is fixedly connected to the transverse alloy square tube frame. The lower surfaces of the glass fiber board and the polyurethane foam board are connected to the transverse alloy square tube frame to make the structure more stable, and the transverse alloy square tube frame provides stable support for the internal structure.
[0007] According to the steel-wood thermal insulation fire door, the lower surface of the flame-retardant fiberboard is fixedly connected to the fire-proof expansion sealing strip, and the lower surface of the calcium silicate fireproof board is fixedly connected to the fire-proof expansion sealing strip, making the structure more stable.
[0008] According to the steel-wood thermal insulation fire door, the lower surface of the longitudinal steel square tube frame is fixedly connected to the fire-proof expansion sealing strip, and the lower surface of the perlite fireproof board is fixedly connected to the fire-proof expansion sealing strip. The perlite fireproof board has the characteristics of light weight, heat insulation, fire prevention, and sound absorption, and the cost of the perlite fireproof board is relatively low.
[0009] According to the steel-wood thermal insulation fire door, the lower surface of the fireproof rock wool board is fixedly connected to the fireproof expansion sealing strip, and the lower surface of the flame retardant plywood is fixedly connected to the fireproof expansion sealing strip. The fireproof rock wool board has good fireproof performance and also has the advantages of heat insulation, sound absorption, and heat preservation. The flame retardant plywood has good fireproof performance and can delay the spread of fire. The flame retardant plywood has high strength and is not easy to deform during use.
[0010] According to the steel-wood thermal insulation fire door, the number of the longitudinal steel square tube frame and the transverse alloy square tube frame are both multiple, and the lower surface of the fire-proof expansion sealing strip is fixedly connected to the door panel frame. The multiple longitudinal steel square tube frames and the transverse alloy square tube frames have a better supporting effect and can withstand large pressure and impact force. When a fire occurs, they can effectively resist external forces and ensure the structural stability of the door.
[0011] According to the steel-wood thermal insulation fireproof door, the surfaces of the panel and the flame-retardant plywood are both provided with a fireproof coating, and the surfaces of the panel and the flame-retardant plywood are both provided with a heat-insulating reflective coating. The heat-insulating reflective coating can reflect most of the heat radiation, reduce the heat transferred to the inside of the door, reduce the temperature of the door surface, improve the thermal insulation performance of the door, and provide better protection for people and property behind the door.
[0012] According to the steel-wood heat-insulating fireproof door, a door plate is fixedly connected to the front surface of the panel, and a fireproof door lock is provided inside the panel.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] By installing flame-retardant fiberboard, calcium silicate fireproof board, perlite fireproof board, fireproof rock wool board and flame-retardant plywood, the fire door can withstand flames for a certain period of time without being easily penetrated, slowing down the speed of heat transfer to the other side of the door, reducing the impact of the fire on the space on the other side of the door, and at the same time, the fire door has good thermal insulation effect.
[0015] By setting up longitudinal steel square tube frames, transverse alloy square tube frames, honeycomb paper core boards, glass fiber boards and polyurethane foam boards, the longitudinal steel square tube frames and transverse alloy square tube frames provide a solid frame structure for the fire door, which can withstand greater pressure and impact force, ensure the structural stability of the door, avoid large changes in the internal structure and a sudden drop in strength in the event of a fire, reduce the occurrence of collapse, and at the same time enhance the safety of the fire door.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0018] Figure 1 This is a schematic diagram of the overall structure of a steel-wood thermal insulation fire door of the utility model;
[0019] Figure 2 This is an exploded view of a steel-wood thermal insulation fire door of the utility model;
[0020] Figure 3 This is a schematic diagram of the longitudinal steel square tube frame structure of a steel-wood thermal insulation fire door of the utility model;
[0021] Figure 4 This is a partial structural cross-sectional view of a steel-wood thermal insulation fireproof door of the present invention.
[0022] Legend:
[0023] 1. Panel; 2. Door panel frame; 3. Flame-retardant fiberboard; 4. Calcium silicate fireproof board; 5. Longitudinal steel square tube frame; 6. Horizontal alloy square tube frame; 7. Perlite fireproof board; 8. Fireproof rock wool board; 9. Flame-retardant plywood; 10. Honeycomb paper core board; 11. Fiberglass board; 12. Polyurethane foam board; 13. Door plate; 14. Fireproof door lock; 15. Fireproof expansion seal. DETAILED DESCRIPTION
[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.
[0025] Reference Figure 1-4 The embodiment of the utility model is a steel-wood thermal insulation fire door, comprising: a panel 1, a fireproof expansion sealing strip 15 is fixedly connected to the lower surface of the panel 1, a flame-retardant fiberboard 3 is provided on the rear surface of the panel 1, the lower surface of the flame-retardant fiberboard 3 is fixedly connected to the fireproof expansion sealing strip 15, the rear surface of the flame-retardant fiberboard 3 is provided with a calcium silicate fireproof board 4, the lower surface of the calcium silicate fireproof board 4 is fixedly connected to the fireproof expansion sealing strip 15, the lower surface of the fireproof expansion sealing strip 15 is fixedly connected to the door panel frame 2, the front surface of the panel 1 is fixedly connected to the doorplate plate 13, and a fireproof door lock 14 is provided inside the panel 1.
[0026] The rear surface of the calcium silicate fireproof board 4 is provided with a longitudinal steel square tube frame 5, the lower surface of the longitudinal steel square tube frame 5 is fixedly connected to the fire expansion sealing strip 15, the left surface of the longitudinal steel square tube frame 5 is fixedly connected to the transverse alloy square tube frame 6, the number of the longitudinal steel square tube frame 5 and the transverse alloy square tube frame 6 are multiple, the rear surface of the transverse alloy square tube frame 6 is provided with a perlite fireproof board 7, the lower surface of the perlite fireproof board 7 is fixedly connected to the fire expansion sealing strip 15, the rear surface of the perlite fireproof board 7 is provided with a fireproof rock wool board 8, the lower surface of the fireproof rock wool board 8 is fixedly connected to the fire expansion sealing strip 15, the rear of the fireproof rock wool board 8 The surface is provided with flame retardant plywood 9, and the surfaces of the panel 1 and the flame retardant plywood 9 are both provided with fire retardant coatings. The surfaces of the panel 1 and the flame retardant plywood 9 are both provided with heat insulation reflective coatings. The lower surface of the flame retardant plywood 9 is fixedly connected to the fireproof expansion sealing strip 15. The upper surface of the transverse alloy square tube frame 6 is fixedly connected to the honeycomb paper core board 10, and the rear surface of the honeycomb paper core board 10 is provided with a glass fiber board 11. The lower surface of the glass fiber board 11 is fixedly connected to the transverse alloy square tube frame 6. The rear surface of the glass fiber board 11 is provided with a polyurethane foam board 12, and the lower surface of the polyurethane foam board 12 is fixedly connected to the transverse alloy square tube frame 6.
[0027] Working principle: When a fire occurs on one side of the panel 1, the fire needs to pass through the panel 1, the flame retardant fiberboard 3, the calcium silicate fireproof board 4, the honeycomb paper core board 10, the glass fiber board 11, the polyurethane foam board 12, and the perlite fireproof board 7, the fireproof rock wool board 8, and the flame retardant plywood 9 before it can pass through the fire door. The surface of the panel 1 is provided with a fireproof coating and a heat-insulating reflective coating to reduce the heat transfer to the inside of the panel 1. The flame retardant fiberboard 3 and the calcium silicate fireproof board 4 have good fireproof performance and can delay the spread of the fire. Multiple sets of longitudinal steel square tube frames 5 and transverse alloy square tube frames 6 are provided to provide a stable support effect for the fire door, which can Withstand large pressure and impact force to ensure the structural stability of the door. The perlite fireproof board 7, fireproof rock wool board 8, and flame retardant plywood 9 further slow down the heat transfer rate. The structural fire door can withstand flames for a certain period of time without being easily penetrated, slowing down the speed of heat transfer to the other side of the door, and reducing the impact of the fire on the space on the other side of the door. At the same time, the fire door has good thermal insulation effect and provides a solid frame structure for the fire door, which can withstand greater pressure and impact force, ensuring the structural stability of the door, avoiding large changes in the internal structure and a sudden drop in strength in the event of a fire, reducing the occurrence of collapse, and enhancing the safety of the fire door.
[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A steel-wood thermal insulation fire door, characterized in that: include: A panel (1), wherein the rear surface of the panel (1) is provided with a flame-retardant fiberboard (3), the rear surface of the flame-retardant fiberboard (3) is provided with a calcium silicate fireproof board (4), the rear surface of the calcium silicate fireproof board (4) is provided with a longitudinal steel square tube frame (5), the left surface of the longitudinal steel square tube frame (5) is fixedly connected to a transverse alloy square tube frame (6), the rear surface of the transverse alloy square tube frame (6) is provided with a perlite fireproof board (7), the rear surface of the perlite fireproof board (7) is provided with a fireproof rock wool board (8), and the rear surface of the fireproof rock wool board (8) is provided with a flame-retardant plywood (9); A honeycomb paper core board (10) is fixedly connected to the upper surface of the transverse alloy square tube frame (6), a glass fiber board (11) is provided on the rear surface of the honeycomb paper core board (10), a polyurethane foam board (12) is provided on the rear surface of the glass fiber board (11), and a fireproof expansion sealing strip (15) is fixedly connected to the lower surface of the panel (1).
2. A steel-wood thermal insulation fire door according to claim 1, characterized in that: The lower surface of the glass fiber board (11) is fixedly connected to the transverse alloy square tube frame (6), and the lower surface of the polyurethane foam board (12) is fixedly connected to the transverse alloy square tube frame (6).
3. The steel-wood thermal insulation fire door according to claim 1, characterized in that: The lower surface of the flame-retardant fiberboard (3) is fixedly connected to the fire-proof expansion sealing strip (15), and the lower surface of the calcium silicate fireproof board (4) is fixedly connected to the fire-proof expansion sealing strip (15).
4. The steel-wood thermal insulation fire door according to claim 1, characterized in that: The lower surface of the longitudinal steel square tube frame (5) is fixedly connected to the fireproof expansion sealing strip (15), and the lower surface of the perlite fireproof board (7) is fixedly connected to the fireproof expansion sealing strip (15).
5. The steel-wood thermal insulation fire door according to claim 1, characterized in that: The lower surface of the fireproof rock wool board (8) is fixedly connected to the fireproof expansion sealing strip (15), and the lower surface of the flame-retardant plywood (9) is fixedly connected to the fireproof expansion sealing strip (15).
6. The steel-wood thermal insulation fire door according to claim 1, characterized in that: The longitudinal steel square tube frame (5) and the transverse alloy square tube frame (6) are both provided in plural numbers, and the lower surface of the fireproof expansion sealing strip (15) is fixedly connected to the door panel frame (2).
7. The steel-wood thermal insulation fire door according to claim 1, characterized in that: The surfaces of the panel (1) and the flame-retardant plywood (9) are both provided with a fireproof coating, and the surfaces of the panel (1) and the flame-retardant plywood (9) are both provided with a heat-insulating reflective coating.
8. The steel-wood thermal insulation fire door according to claim 1, characterized in that: A door plate (13) is fixedly connected to the front surface of the panel (1), and a fireproof door lock (14) is provided inside the panel (1).