Fireproof flame-retardant door core structure
By introducing flame-retardant and heat-insulating components and sealing flame-retardant components into the fire-retardant door core, the problem of poor heat insulation and sealing of the fire-retardant door core at high temperatures is solved, achieving better heat insulation and sealing effects and improving the performance of the fire-retardant door.
Patent Information
- Application Number
- CN202422739494.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing fire-retardant door cores cannot provide heat insulation and sealing during use, causing the adhesive of the flame-retardant material to melt at high temperatures, thus affecting the performance of the fire-retardant door.
It adopts a combined structure of flame-retardant and heat-insulating components and sealing flame-retardant components, including vacuum heat insulation board, flame-retardant board, heat insulation board, fireproof board, sealing board and flame-retardant block, etc., and forms a stable heat insulation and sealing system through threaded connection and movable connection.
It effectively insulates heat, prevents damage to flame-retardant materials, enhances the heat insulation and sealing effect of the door core, avoids the melting of adhesives caused by high temperatures, and improves the performance of fireproof and flame-retardant doors.
Smart Images

Figure CN223867892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireproof and flame-retardant door core technology, specifically a fireproof and flame-retardant door core structure. Background Technology
[0002] Fire-resistant and flame-retardant door cores are key components used inside doors to enhance their fire resistance and protect life and property. They are typically made of materials with good flame-retardant properties, such as flame-retardant inorganic materials and flame-retardant fibers. These materials are carefully designed and combined to form a specific structure that effectively prevents the spread of fire and slows down the penetration of flames in the event of a fire, while maintaining the integrity and stability of the door for a certain period of time.
[0003] For example, a new type of environmentally friendly flame-retardant door core panel with publication number CN218716345U mainly consists of a door core panel body, a first loading plate, a second loading plate, a sealing column, connecting holes, a first ventilation hole, and a sealing mechanism. Through the cooperation between these components, it can isolate high temperature and smoke in the event of a fire, enhance its flame-retardant performance, extend rescue time, and protect the privacy and property safety of users in daily use without affecting the travel of other residents, and is conducive to indoor and outdoor air circulation.
[0004] Based on the search of patent numbers, and combined with the shortcomings of existing technologies, the following findings were made;
[0005] Existing fire-retardant door cores cannot provide heat insulation and sealing during use. This means that when the fire-retardant door core encounters a fire, the high temperature can cause the adhesive used for the flame-retardant material to melt, affecting the proper use of the fire-retardant material inside the door core and reducing the effectiveness of the fire-retardant door. Utility Model Content
[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a fireproof and flame-retardant door core structure that has the advantages of heat insulation and sealing. This solves the problem that existing fireproof and flame-retardant door cores cannot provide heat insulation and sealing during use. This causes the adhesive used for the flame-retardant material to melt when the fire occurs, affecting the proper use of the fireproof material inside the door core and reducing the effectiveness of the fireproof and flame-retardant door.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a fireproof and flame-retardant door core structure, comprising a door core panel body and a connecting frame, wherein the door core panel body is located inside the connecting frame, the right side of the door core panel body is movably installed with one side of the inner wall of the connecting frame via a hinge, a flame-retardant and heat-insulating component is fixedly connected to the outer side of the door core panel body, and a sealing and flame-retardant component is fixedly connected to the outer side of the connecting frame.
[0008] As a preferred embodiment of this utility model, the flame-retardant and heat-insulating component includes a vacuum heat insulation plate, a flame-retardant plate is fixedly connected to the outer side of the vacuum heat insulation plate, a heat insulation plate is fixedly connected to the outer side of the flame-retardant plate, and a fireproof plate is fixedly connected to the outer side of the heat insulation plate.
[0009] As a preferred embodiment of this utility model, the sealing and flame-retardant assembly includes a sealing plate, a flame-retardant block is fixedly connected to the outer side of the sealing plate, a sealing strip is fixedly connected to the outer side of the door core panel body, a connecting groove is provided on the inner side of the sealing plate, and the surface of the sealing strip is movably connected to the interior of the connecting groove.
[0010] As a preferred embodiment of this utility model, an installation groove is provided on the outer side of the outer side of the insulation board, a connecting rod is movably connected inside the installation groove, and a rotating block is fixedly connected to the outer side of the connecting rod.
[0011] As a preferred embodiment of this utility model, a limiting groove is provided at each of the four corners of the outer side of the fireproof board, and a limiting ring is movably connected inside the limiting groove. The inside of the limiting ring is fixedly connected to the surface of the connecting rod.
[0012] As a preferred embodiment of this utility model, a connecting strip is fixedly connected to the outer side of the door core panel body, and the vacuum insulation plate is located inside the connecting strip.
[0013] As a preferred embodiment of this utility model, a flame-retardant strip is fixedly connected to the outer side of the connecting strip, a fixing groove is provided on the outer side of the flame-retardant strip, and a sealing block is fixedly connected inside the fixing groove.
[0014] As a preferred embodiment of this utility model, the flame-retardant plate has a connecting groove at each of the four corners on its front side, the surface of the connecting rod is threadedly connected to the inside of the connecting groove, and the connecting strip has a movable groove at each of the four corners on its front side, the inner side of the surface of the connecting rod is threadedly connected to the inside of the movable groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model solves the problem that existing fireproof and flame-retardant door cores cannot be heat-insulated and sealed during use. This is because, when fire occurs, the high temperature causes the adhesive used for the flame-retardant material to melt, affecting the use of the fireproof material inside the door core and reducing the effectiveness of the fireproof and flame-retardant door. This invention achieves the effect of heat insulation and sealing.
[0017] 2. This utility model, by setting flame-retardant and heat-insulating components, allows the vacuum insulation panel to isolate heat during use, preventing heat from affecting the flame-retardant structure inside the door core panel. At the same time, the flame-retardant board can provide flame-retardant protection for the outside of the vacuum insulation panel, preventing damage to the vacuum insulation panel from flames and ensuring effective flame retardancy. Meanwhile, the heat insulation board can insulate the outside of the flame-retardant board during use, keeping most of the high temperature out. Together with the vacuum insulation panel, it can effectively insulate heat, and the fireproof board can provide heat insulation protection for the outside of the heat insulation panel.
[0018] 3. By setting up a sealing and flame-retardant component, the sealing plate can seal the outer side of the connecting frame and the door core panel body during use, and is connected and sealed with the sealing strip through the connecting groove, preventing heat from flowing between the connecting frame and the door core panel body, thus enhancing the heat insulation and sealing effect during use. At the same time, the flame-retardant block can provide flame-retardant protection for the outer side of the sealing plate. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;
[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0022] In the diagram: 1. Door core panel body; 2. Connecting frame; 3. Flame-retardant and heat-insulating component; 31. Vacuum heat insulation board; 32. Flame-retardant board; 33. Heat insulation board; 34. Fireproof board; 4. Sealing and flame-retardant component; 41. Sealing plate; 42. Flame-retardant block; 43. Sealing strip; 44. Connecting groove; 5. Mounting groove; 6. Connecting rod; 7. Rotating block; 8. Limiting groove; 9. Limiting ring; 10. Connecting strip; 11. Flame-retardant strip; 12. Fixing groove; 13. Sealing block; 14. Connecting groove; 15. Movable groove. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figures 1 to 3As shown, the present invention provides a fireproof and flame-retardant door core structure, including a door core panel body 1 and a connecting frame 2. The door core panel body 1 is located inside the connecting frame 2. The right side of the door core panel body 1 is movably installed to one side of the inner wall of the connecting frame 2 via a hinge. A flame-retardant and heat-insulating component 3 is fixedly connected to the outside of the door core panel body 1, and a sealing and flame-retardant component 4 is fixedly connected to the outside of the connecting frame 2.
[0025] refer to Figure 3 The flame-retardant and heat-insulating component 3 includes a vacuum heat insulation plate 31, a flame-retardant plate 32 fixedly connected to the outside of the vacuum heat insulation plate 31, a heat insulation plate 33 fixedly connected to the outside of the flame-retardant plate 32, and a fireproof plate 34 fixedly connected to the outside of the heat insulation plate 33.
[0026] As a technical optimization of this utility model, by setting the flame-retardant and heat-insulating component 3, the vacuum heat insulation board 31 can isolate heat during use, preventing heat from affecting the use of the flame-retardant structure inside the door core panel body 1. At the same time, the flame-retardant board 32 can provide flame-retardant protection for the outside of the vacuum heat insulation board 31, preventing the vacuum heat insulation board 31 from being damaged by flames and unable to effectively retard the flame. Meanwhile, the heat insulation board 33 can provide heat insulation for the outside of the flame-retardant board 32 during use, keeping most of the high temperature out. Together with the vacuum heat insulation board 31, it can effectively provide heat insulation. The fireproof board 34 can provide heat insulation protection for the outside of the heat insulation board 33.
[0027] refer to Figure 2 The sealing and flame-retardant component 4 includes a sealing plate 41, a flame-retardant block 42 fixedly connected to the outer side of the sealing plate 41, a sealing strip 43 fixedly connected to the outer side of the door core panel body 1, a connecting groove 44 opened on the inner side of the sealing plate 41, and the surface of the sealing strip 43 movably connected to the inside of the connecting groove 44.
[0028] As a technical optimization of this utility model, by setting the sealing flame-retardant component 4, the sealing plate 41 can seal the outer side of the connecting frame 2 and the door core panel body 1 during use, and is connected and sealed with the sealing strip 43 through the connecting groove 44, so as to prevent heat from flowing between the connecting frame 2 and the door core panel body 1, thereby enhancing the heat insulation and sealing effect during use. At the same time, the flame-retardant block 42 can provide flame-retardant protection for the outer side of the sealing plate 41.
[0029] refer to Figure 3 The outer side of the insulation board 33 is provided with an installation groove 5. The installation groove 5 is movably connected to a connecting rod 6. The outer side of the connecting rod 6 is fixedly connected to a rotating block 7.
[0030] As a technical optimization of this utility model, by setting up an installation groove 5, a connecting rod 6 and a rotating block 7, the connecting rod 6 can be connected to the internal thread of the installation groove 5 during use, which facilitates the installation and fixing of the connecting rod 6 to the outside of the insulation plate 33 through the installation groove 5. At the same time, the rotating block 7 allows the user to easily rotate the connecting rod 6, enhancing the convenience of rotation during use.
[0031] refer to Figure 3 Limiting grooves 8 are provided at the four corners of the outer side of the fireproof board 34. Limiting rings 9 are movably connected inside the limiting grooves 8. The inside of the limiting rings 9 is fixedly connected to the surface of the connecting rod 6.
[0032] As a technical optimization of this utility model, by setting a limiting groove 8 and a limiting ring 9, the limiting groove 8 can limit the surface movement of the limiting ring 9 during use. After the limiting ring 9 is limited in movement, it can drive the surface movement of the connecting rod 6 to be limited, so that the connecting rod 6 can be stably connected in use.
[0033] refer to Figure 3 A connecting strip 10 is fixedly connected to the outer side of the door core panel body 1, and the vacuum heat insulation plate 31 is located inside the connecting strip 10.
[0034] As a technical optimization of this utility model, by setting the connecting strip 10, the connecting strip 10 can protect the outside of the vacuum insulation plate 31 during use, thereby enhancing the safety of the vacuum insulation plate 31 and preventing the vacuum insulation plate 31 from being easily affected by the outside environment during use.
[0035] refer to Figure 3 A flame-retardant strip 11 is fixedly connected to the outer side of the connecting strip 10. A fixing groove 12 is provided on the outer side of the flame-retardant strip 11. A sealing block 13 is fixedly connected inside the fixing groove 12.
[0036] As a technical optimization of this utility model, by setting a flame-retardant strip 11, a fixing groove 12 and a sealing block 13, the flame-retardant strip 11 can provide flame-retardant protection for the outside of the connecting strip 10 during use, preventing the flame from directly damaging the connecting strip 10. At the same time, the fixing groove 12 can make the sealing block 13 stably seal the outside, enhancing the sealing effect during use.
[0037] refer to Figure 3 The flame-retardant plate 32 has four connecting grooves 14 on its front side. The surface of the connecting rod 6 is threadedly connected to the inside of the connecting groove 14. The connecting strip 10 has four movable grooves 15 on its front side. The inner side of the surface of the connecting rod 6 is threadedly connected to the inside of the movable groove 15.
[0038] As a technical optimization of this utility model, by setting the connecting groove 14 and the movable groove 15, the connecting groove 44 can be threadedly connected to the surface of the connecting rod 6 during use, so that the flame-retardant plate 32 is connected and fixed. The movable groove 15 can be threadedly connected to the surface of the connecting rod 6, so that the connecting rod 6 is connected and fixed to the connecting strip 10 through the movable groove 15, thereby enhancing the fixing stability of the connecting rod 6.
[0039] The working principle and usage process of this utility model are as follows: During use, the vacuum insulation plate 31 isolates heat, preventing it from affecting the flame-retardant structure inside the door core panel 1. Simultaneously, the flame-retardant plate 32 provides flame-retardant protection to the outside of the vacuum insulation plate 31, preventing damage from flames and ensuring effective flame retardancy. Meanwhile, the heat insulation plate 33 provides heat insulation to the outside of the flame-retardant plate 32, keeping most of the high temperatures out. Combined with the vacuum insulation plate 31, this effectively provides heat insulation. The fireproof plate 34 provides heat insulation protection to the outside of the heat insulation plate 33. The sealing plate 41 seals the outside of the connecting frame 2 and the door core panel 1, and... The groove 44 is connected and sealed with the sealing strip 43 to prevent heat from flowing between the connecting frame 2 and the door core panel 1, thus enhancing the heat insulation and sealing effect during use. At the same time, the flame-retardant block 42 can provide flame-retardant protection for the outside of the sealing plate 41. During use, the connecting rod 6 can be connected to the internal thread of the mounting groove 5, which facilitates the installation and fixing of the connecting rod 6 to the outside of the heat insulation plate 33 through the mounting groove 5. The connecting rod 6 can also be threaded to the connecting groove 44 and the movable groove 15, so that the connecting rod 6 is connected and fixed to the flame-retardant plate 32 through the connecting groove 14 and to the connecting strip 10 through the movable groove 15. This effectively avoids the melting of adhesive caused by high temperature, achieves the effect of heat insulation and sealing, and enhances the performance of the fireproof and flame-retardant door.
[0040] In summary, this fire-retardant door core structure, by setting up a flame-retardant and heat-insulating component 3 in conjunction with a sealing flame-retardant component 4, stably seals the outer side of the door core panel 1 with flame retardant. This solves the problem that existing fire-retardant door cores cannot achieve heat insulation and sealing during use. This leads to the problem that when the fire-retardant door core encounters a fire, the high temperature causes the adhesive used for the flame-retardant material to melt, affecting the effective use of the fire-retardant material inside the door core and reducing the performance of the fire-retardant door.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fire-resistant and flame-retardant door core structure, comprising a door core panel body (1) and a connecting frame (2), characterized in that: The door core panel body (1) is located inside the connecting frame (2). The right side of the door core panel body (1) is movably installed on one side of the inner wall of the connecting frame (2) via a hinge. A flame-retardant and heat-insulating component (3) is fixedly connected to the outside of the door core panel body (1), and a sealing flame-retardant component (4) is fixedly connected to the outside of the connecting frame (2).
2. The fireproof and flame-retardant door core structure according to claim 1, characterized in that: The flame-retardant and heat-insulating component (3) includes a vacuum heat insulation plate (31), a flame-retardant plate (32) is fixedly connected to the outside of the vacuum heat insulation plate (31), a heat insulation plate (33) is fixedly connected to the outside of the flame-retardant plate (32), and a fireproof plate (34) is fixedly connected to the outside of the heat insulation plate (33).
3. The fireproof and flame-retardant door core structure according to claim 1, characterized in that: The sealing flame-retardant assembly (4) includes a sealing plate (41), a flame-retardant block (42) is fixedly connected to the outside of the sealing plate (41), a sealing strip (43) is fixedly connected to the outside of the door core panel body (1), a connecting groove (44) is opened on the inside of the sealing plate (41), and the surface of the sealing strip (43) is movably connected to the inside of the connecting groove (44).
4. The fireproof and flame-retardant door core structure according to claim 2, characterized in that: The outer side of the insulation board (33) is provided with an installation groove (5), and a connecting rod (6) is movably connected inside the installation groove (5). A rotating block (7) is fixedly connected to the outer side of the connecting rod (6).
5. The fireproof and flame-retardant door core structure according to claim 2, characterized in that: Limiting grooves (8) are provided at the four corners of the outer side of the fireproof board (34). A limiting ring (9) is movably connected inside the limiting groove (8). The inside of the limiting ring (9) is fixedly connected to the surface of the connecting rod (6).
6. The fireproof and flame-retardant door core structure according to claim 4, characterized in that: A connecting strip (10) is fixedly connected to the outside of the core panel body (1), and the vacuum insulation plate (31) is located inside the connecting strip (10).
7. A fireproof and flame-retardant door core structure according to claim 6, characterized in that: A flame-retardant strip (11) is fixedly connected to the outside of the connecting strip (10), and a fixing groove (12) is opened on the outside of the flame-retardant strip (11). A sealing block (13) is fixedly connected inside the fixing groove (12).
8. A fireproof and flame-retardant door core structure according to claim 6, characterized in that: The flame-retardant plate (32) has four connecting grooves (14) on its front side. The surface of the connecting rod (6) is threadedly connected to the inside of the connecting groove (14). The connecting strip (10) has four movable grooves (15) on its front side. The inner side of the surface of the connecting rod (6) is threadedly connected to the inside of the movable groove (15).