Safety fireproof door with outer layer protection

By designing a detachable outer protective layer and plug-in structure on the outside of the fire door, the problem of external damage of the fire door is solved, convenient replacement and aesthetics are achieved, and the durability of the fire door is enhanced.

CN223075424UActive Publication Date: 2025-07-08ZHEJIANG SANRONG DOOR IND CO LTD
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Patent Information

Application Number
CN202420708716.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-08
Publication Date
2025-07-08
Estimated Expiration
2034-04-08

AI Technical Summary

Technical Problem

The external metal of the existing fire door is damaged after a long period of use, resulting in the inability to effectively block the spread of flames, and lacks convenient outer protection and replacement solutions.

Method used

A safety fire door with outer protection is designed, adopting a removable outer protective layer, which is conveniently installed and disassembled through plug-in structure and compression spring. Decorative panels can be installed on the outer protection plate to increase aesthetics.

Benefits of technology

It realizes convenient replacement and aesthetics of the outer layer of the fire door, enhances the durability and appearance of the fire door, ensures that the fire door can be replaced quickly after damage, and maintains the fireproof function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safety fireproof door with outer layer protection, which comprises an outer protection plate and a fireproof door, the edge of the outer side of the fireproof door is recessed to form a frame-shaped groove, the outer protection plate is arranged on the outer side surface of the fireproof door, the inner side surface of the outer protection plate is bent inwards to form a positioning frame, the positioning frame is inserted into the frame-shaped groove, and the outer protection plate is arranged on the outer side surface of the fireproof door. A plurality of grooves are formed in the inner side face of the fireproof door, a plurality of inserting openings penetrating through the fireproof door are formed in the inner wall faces of the grooves, inserting columns are installed at the positions, right opposite to the inserting openings, of the inner side face of the outer protection plate, the inserting columns penetrate through the inserting openings and extend into the grooves, and inserting plates for positioning the inserting columns are arranged in the grooves. The fireproof door is simple in structure, the detachable outer protection layer is arranged on the outer side of the fireproof door, the detachable decorative plate is installed on the outer protection layer, attractiveness is improved, and the outer protection layer is simple in installation structure, can be rapidly detached and can be conveniently replaced after being damaged.
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Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, and particularly relates to a safe fire door with an outer layer of protection. Background Technique

[0002] A safe fire door, also known as an emergency evacuation door, a safety emergency door, an escape door, a safety exit door, an emergency exit door, an emergency access door, or a fire access door, is an important part of the fire safety of a building. Its main purpose is to provide a quick passage for personnel to escape and for fire rescue during a fire.

[0003] The main function of a fire door is to prevent the spread of fire. By using fireproof materials and a special structural design, it can withstand the high temperature and smoke attack of a fire, playing the role of heat insulation, isolation, and smoke isolation. At the same time, a fire door can extend the evacuation time of personnel, avoid being trapped in the fire scene, provide sufficient time for escape, and ensure people's life safety. In addition, a fire door can also reduce the scope and degree of a fire, reduce fire losses, and protect property safety.

[0004] Currently, the structure of a fire door is simple, generally an integral structure as a whole. After long-term use, the outer side of the fire door often gets damaged due to impacts, friction, etc. Especially once the metal on the outside of the fire door is damaged, it is easy to lose the function of blocking the flame, resulting in an increase in the fire. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a safe fire door with an outer layer of protection, which is equipped with a detachable outer protection layer, and the installation and disassembly are convenient, so as to solve the problems mentioned in the above background technique.

[0006] The utility model is realized through the following technical solutions: A safe fire door with an outer layer of protection, including an outer protection plate and a fire door. A frame-shaped groove is formed by a depression at the edge on the outer side of the fire door. The outer protection plate is arranged on the outer side surface of the fire door. The inner side surface of the outer protection plate bends inward to form a positioning frame, and the positioning frame is inserted into the frame-shaped groove. A plurality of grooves are provided on the inner side surface of the fire door, and a plurality of sockets penetrating through the fire door are provided on the inner wall surface of the grooves. Plug posts are installed at the positions on the inner side surface of the outer protection plate corresponding to the sockets, and the plug posts all pass through the sockets and extend into the grooves. Plug plates for positioning the plug posts are arranged inside the grooves.

[0007] As a preferred technical solution, a positioning groove is provided on the inner side surface of the outer protection plate, a decorative opening is provided on the inner wall surface of the positioning groove, a decorative plate is provided in the decorative opening, a positioning plate is installed on the inner side surface of the decorative plate, the positioning plate is arranged inside the positioning groove, and the inner side surface of the positioning plate abuts against the outer side surface of the fire door.

[0008] As a preferred technical solution, connecting grooves are provided on the opposite end faces of the grooves. One end of each inserting plate extends into the interior of the connecting groove, and a plurality of compression springs are installed. The other ends of the compression springs are installed on the inner wall surfaces of the connecting grooves. Slots are provided on the opposite end faces of the inserting columns, and the other ends of the inserting plates are inserted into the corresponding slots.

[0009] As a preferred technical solution, a plurality of limiting grooves are provided on the inner wall surfaces of the frame-shaped grooves. Limiting portions are formed by protruding at the positions where the end faces of the positioning frames face the limiting grooves, and the limiting portions are inserted into the limiting grooves.

[0010] As a preferred technical solution, the cross sections of the socket and the inserting column are both arranged in a rectangular structure, and the outer side surface of the inserting column is in contact with the inner side surface of the socket.

[0011] As a preferred technical solution, the outer side surface of the decorative plate is flush with the outer side surface of the outer protection plate.

[0012] As a preferred technical solution, the outer protection plate is made of a metal material.

[0013] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. A detachable outer protection layer is provided on the outer side of the fire door, and a detachable decorative plate is installed on the outer protection layer, which increases the aesthetics. Moreover, the installation structure of the outer protection layer is simple and can be quickly disassembled, facilitating the replacement after damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is a rear view of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the present utility model after removing the inserting plate;

[0018] Figure 4 It is a schematic diagram of the structure of the outer protection layer plate in the present utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the fire door in the present utility model.

[0020] Among them, 1, fire door; 2, outer protection plate; 3, decorative plate; 4, groove; 5, insertion post; 6, insertion plate; 7, slot; 8, connection groove; 9, positioning groove; 10, decorative opening; 11, limiting part; 12, frame-shaped groove; 13, limiting groove; 14, positioning plate; 15, insertion opening. Detailed implementation manner

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0022] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0023] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically stated, can be replaced by other equivalent or features with similar purposes. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0024] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a safety fire door with an outer layer protection of the present utility model includes an outer protection plate 2 and a fire door 1. A frame-shaped groove 12 is formed by the depression at the outer edge of the outer side of the fire door 1. The outer protection plate 2 is arranged on the outer side surface of the fire door 1. The inner side surface of the outer protection plate 2 is bent inward to form a positioning frame, and the positioning frame is inserted into the frame-shaped groove 12. A plurality of grooves 4 are provided on the inner side surface of the fire door 1. A plurality of insertion openings 15 penetrating the fire door 1 are provided on the inner wall surface of the groove 4. Insertion posts 5 are installed on the inner side surface of the outer protection plate 2 corresponding to the insertion openings 15. The insertion posts 5 all pass through the insertion openings 15 and extend into the grooves 4. Insertion plates 6 for positioning the insertion posts 5 are arranged inside the grooves 4.

[0025] In this embodiment, a positioning groove 9 is provided on the inner side surface of the outer protection plate 2. A decorative opening 10 is provided on the inner wall surface of the positioning groove 9. A decorative plate 3 is provided in the decorative opening 10. A positioning plate 14 is installed on the inner side surface of the decorative plate 3. The positioning plate 14 is arranged inside the positioning groove 9, and the inner side surface of the positioning plate 14 is in contact with the outer side surface of the fire door 1.

[0026] In this embodiment, connection grooves 8 are provided on the opposite end faces of the groove 4. One end of each insertion plate 6 extends into the interior of the connection groove 8, and a plurality of compression springs are installed. The other ends of the compression springs are installed on the inner wall surfaces of the connection groove 8. Slots 7 are provided on the opposite end faces of the insertion posts 5, and the other ends of the insertion plates 6 are inserted into the corresponding slots 7.

[0027] In this embodiment, a plurality of limiting grooves 13 are provided on the inner wall surfaces of the frame-shaped grooves 12. Limiting portions 11 are formed protrudingly on the end faces of the positioning frames corresponding to the limiting grooves 13, and the limiting portions 11 are inserted into the limiting grooves 13.

[0028] In this embodiment, the cross-sections of the socket 15 and the insertion post 5 are both arranged in a rectangular structure, and the outer side surface of the insertion post 5 is in contact with the inner side surface of the socket 15.

[0029] In this embodiment, the outer side surface of the decorative plate 3 is flush with the outer side surface of the outer protection plate 2.

[0030] In this embodiment, the outer protection plate 2 is made of a metal material, which increases the firmness and fire prevention effect.

[0031] During installation, the outer protection plate can be attached to the outer side surface of the fire door, while the positioning frame is sleeved in the frame-shaped groove. The limiting portions on the positioning frame can be inserted into the limiting grooves. The edge of the outer protection plate can be positioned through the inserted limiting portions, avoiding outward opening at the edge and increasing the firmness of installation;

[0032] Among them, before the outer protection plate is attached to the fire door, the insertion plate can be pushed outwards so that the insertion plates are all hidden in the connection grooves. Therefore, as the outer protection plate moves, the insertion post can pass through the socket and extend into the groove. After the outer protection plate is completely attached, the insertion plate can be released, and the insertion plate is pushed out by the rebound of the compression spring, so that the insertion plate can automatically be inserted into the slot, thereby positioning the inserted insertion post and also fixing the outer protection plate synchronously;

[0033] On the contrary, once the outer protection layer plate is damaged, the insertion plate can be pushed outwards again. After the insertion plate is removed from the slot, the outer protection layer plate can be directly detached from the fire door, which greatly facilitates disassembly and replacement.

[0034] Among them, during the installation of the outer protection plate, the decorative plate can be inserted into the decorative opening. After the outer protection plate is attached to the fire door, the positioning plate behind the decorative plate can be pressed between the outer protection plate and the fire door, directly pressing and positioning it. The aesthetics is increased through the decorative plate, and after the outer protection plate is removed, the decorative plate can be replaced, increasing the convenience.

[0035] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A safety fire door with an outer layer of protection, characterized in that: It includes an outer protection plate (2) and a fire door (1). A frame-shaped groove (12) is formed by the depression of the outer edge on the outside of the fire door (1). The outer protection plate (2) is arranged on the outer side surface of the fire door (1). The inner side surface of the outer protection plate (2) bends inward to form a positioning frame, and the positioning frame is inserted into the frame-shaped groove (12). A plurality of grooves (4) are provided on the inner side surface of the fire door (1). A plurality of sockets (15) penetrating the fire door (1) are provided on the inner wall surface of the groove (4). Plug posts (5) are installed at positions on the inner side surface of the outer protection plate (2) corresponding to the sockets (15). The plug posts (5) all pass through the sockets (15) and extend into the grooves (4). Insertion plates (6) for positioning the plug posts (5) are arranged inside the grooves (4).

2. The safety fire door with an outer layer of protection according to claim 1, characterized in that: A positioning groove (9) is provided on the inner side surface of the outer protection plate (2). A decorative opening (10) is provided on the inner wall surface of the positioning groove (9). A decorative plate (3) is provided in the decorative opening (10). A positioning plate (14) is installed on the inner side surface of the decorative plate (3). The positioning plate (14) is arranged inside the positioning groove (9). The inner side surface of the positioning plate (14) is in contact with the outer side surface of the fire door (1).

3. The safety fire door with an outer layer of protection according to claim 1, characterized in that: Connection grooves (8) are provided on the opposite end faces of the grooves (4). One end of each insertion plate (6) extends into the connection grooves (8), and a plurality of compression springs are installed. The other ends of the compression springs are installed on the inner wall surfaces of the connection grooves (8). Slots (7) are provided on the opposite end faces of the plug posts (5). The other ends of the insertion plates (6) are inserted into the corresponding slots (7).

4. The safety fire door with an outer layer of protection according to claim 1, wherein: A plurality of limiting grooves (13) are provided on the inner wall surfaces of the frame-shaped grooves (12). Limiting portions (11) are formed by protrusions at positions on the end faces of the positioning frame corresponding to the limiting grooves (13). The limiting portions (11) are all inserted into the limiting grooves (13).

5. The safety fire door with an outer layer of protection according to claim 1, characterized in that: The cross sections of the sockets (15) and the plug posts (5) are both arranged in a rectangular structure, and the outer side surface of the plug post (5) is in contact with the inner side surface of the socket (15).

6. The safety fire door with an outer layer of protection according to claim 1, characterized in that: The outer side surface of the decorative plate (3) is flush with the outer side surface of the outer protection plate (2).

7. The safety fire door with an outer layer of protection according to claim 1, characterized in that: The outer protection plate (2) is made of a metal material.