Decorative fireproof door
By combining the concealed hinge door frame with the door leaf, the structural strength of the fire door is enhanced, the problem of inconsistent decorative effect when the fire door is combined with heavy decorative materials is solved, and the unity with the wall decoration and the improvement of load-bearing capacity are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING LANDUN CHUANGZHAN DOOR IND CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-21
AI Technical Summary
When existing fire doors are combined with heavy decorative materials, it is difficult to maintain the harmony of the decorative effect and the load-bearing capacity, especially on stone walls, where color difference is obvious.
The door frame adopts a concealed hinge structure, combined with a door leaf skeleton and steel wire mesh to enhance the structural strength of the door leaf. It is reliably connected to the door frame through hinges, and a thick decorative layer is applied to the outside to ensure consistency with the wall decoration.
It achieves harmony and consistency between the heavy decorative layer and the wall decoration, improves the load-bearing capacity of the door and the overall coordination of the decorative effect, and enhances the user experience.
Smart Images
Figure CN224149440U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fire door technology, and more specifically, to a decorative fire door. Background Technology
[0002] Most fire doors on the market have frames made of one-piece stamping, which generally prevents the application of thick decorative layers.
[0003] In specific areas where high standards of interior design are required, it is necessary to achieve a consistent visual effect between fire doors and wall decorations.
[0004] For example, when fire doors are installed on walls fully covered with stone, the load-bearing capacity of the fire doors is low due to the thickness of the stone. Therefore, a thicker finish cannot be applied to the outside of the fire door. In such cases, methods such as transfer printing are often used to achieve a consistent decorative effect. However, due to color differences, the overall coordination of the decorative effect is not ideal. Utility Model Content
[0005] The purpose of this application is to provide a decorative fire door that can effectively cooperate with the door leaf of a fire door through a concealed hinge frame. At the same time, the organic combination of the concealed hinge frame and the door leaf improves the overall load-bearing capacity. It can also be combined with the form of applying a thick decorative layer to the door leaf to ensure the coordination and consistency between the fire door and the wall decoration.
[0006] To achieve the above objectives, this utility model provides a decorative fireproof door, comprising: a door frame and a door leaf, wherein the door leaf is hinged to the door frame for opening.
[0007] The door leaf includes a door leaf frame, a door leaf steel plate, and a wire mesh disposed on the outer surface of the door leaf steel plate. The door leaf steel plate is fully welded to the door leaf frame, and the wire mesh is welded to the outward pushing side of the door leaf.
[0008] A decorative layer is provided on the outer side of the wire mesh, and the decorative layer covers the entire area of the door leaf.
[0009] In an optional embodiment, the door frame includes a root frame and a main frame. The root frame is located on the connection side between the door and the door frame, and the main frame is connected to the root frame as an integral structure.
[0010] In an optional embodiment, the door leaf steel plate is provided with a cover seam protrusion on the other side opposite to the root frame.
[0011] In an optional embodiment, the door leaf includes a double-leaf door leaf and a single-leaf door leaf, and the cover seam protrusion corresponds to the cover of the double-leaf door leaf, or the cover seam protrusion corresponds to the door frame cover of the single-leaf door leaf.
[0012] In an optional embodiment, the door frame includes a grid-like multi-cell frame, and the interior of the door frame is filled with perlite board.
[0013] In an optional embodiment, the decorative layer includes a stone decorative layer or a wood decorative layer, which is attached to the wire mesh by cement or structural adhesive.
[0014] In an optional embodiment, the hinge includes a concealed hinge that is connected to the side of the door leaf;
[0015] Multiple concealed hinges are connected to the same door leaf, and multiple door frame grooves are provided on the door frame. The concealed hinges are installed in the door frame grooves one by one.
[0016] In an optional embodiment, the door frame includes a door frame groove for mounting the door leaf, the door frame groove extending vertically along the height direction of the door frame, and a gap is left between the door leaf and the door frame groove.
[0017] In an optional embodiment, when the door is closed, the depth of the door frame groove is greater than the thickness of the door relative to the thickness direction of the door.
[0018] In an optional embodiment, the door frame groove includes an L-shaped mounting groove in the transverse cross section, the depth direction of the door frame groove forms the long side of the mounting groove, and a fireproof seal is provided between the inner surface of the door leaf and the short side of the mounting groove.
[0019] The decorative fire door of this utility model can achieve full coverage of the heavy decorative surface on the outward pushing side of the door leaf. By enhancing the structural strength of the door leaf, the load-bearing capacity of the door leaf can be improved, thereby providing a bonding foundation for heavy decorative materials with large loads.
[0020] By covering the entire area of the door leaf with a thick decorative layer, the decorative surface of the door leaf can be integrated with the decorative surface of the wall where the fire door is installed, thereby improving the coordination between the fire door and the wall decoration style and enhancing the sensory and user experience.
[0021] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 A schematic diagram of the outer structure of a decorative fire door in the form of a double-leaf door;
[0024] Figure 2 A schematic diagram of the inner structure of a decorative fire door in the form of a double-leaf door;
[0025] Figure 3 A cross-sectional structural diagram of a decorative fire door in the form of double-leaf doors;
[0026] Figure 4 A schematic diagram of the outer structure of a single-leaf decorative fire door;
[0027] Figure 5 A schematic diagram of the inner structure of a single-leaf decorative fire door;
[0028] Figure 6 A cross-sectional structural diagram of a decorative fire door in the form of a single leaf.
[0029] Figure 7 This is a sectional view of the door frame.
[0030] Figure 8 This is a cross-sectional structural diagram of the door leaf.
[0031] icon:
[0032] 1-Door frame; 11-Door frame groove;
[0033] 2-Door leaf; 21-Door leaf frame; 21a-Root frame; 21b-Main frame;
[0034] 22- Door leaf steel plate; 23- Steel wire mesh; 24- Cover seam protrusion;
[0035] 3- Thick decorative layer;
[0036] 4-Perlite slab;
[0037] 5-Hinge;
[0038] 6-Fireproof seals. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0040] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0041] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0042] The decorative fire door in this application is mainly used in areas where the existing decoration effect is highly demanding. By enhancing the structural strength of the door leaf and the connection strength between the door leaf and the door frame, the heavy decorative material is fully covered on the door leaf, so that the decorative surface of the door leaf can be integrated with the decorative stone or decorative wood surface of the wall where the fire door is installed, thereby improving the overall coordination of the decorative effect.
[0043] See Figure 1 and combined Figures 2-8 The decorative fireproof door of this utility model has a main structure including a door frame 1 and a door leaf 2. The door leaf 2 can be connected to the door frame 1 by hinges 5 and maintains a certain distance from the door frame 1.
[0044] The door leaf 2 can be connected to the door frame 1 in a swing-open manner, which can realize the 90° opening and closing state of the door leaf 2 relative to the door frame 1, and facilitates the setting of the heavy decorative layer 3 on the outward pushing side of the door leaf 2.
[0045] For walls in shopping malls or hotels where high-end finishes are required, ceramic tiles, marble, or other stone decorative surfaces, or wooden decorative surfaces are typically applied. In this invention, the thick decorative layer 3 on the door leaf 2 generally refers to a stone or wooden decorative surface, thus ensuring that the decorative surface of the fire door maintains decorative harmony with the wall surface.
[0046] For the installation of heavy decorative surfaces on door leaf 2, it is necessary to ensure the structural strength and load-bearing capacity of door leaf 2. Based on this, the door leaf 2 in this utility model includes a door leaf frame 21, a door leaf steel plate 22, and a wire mesh 23 disposed on the outer surface of the door leaf steel plate 22.
[0047] The door frame 21 and the door steel plate 22 constitute the main structure of the door 2. By fully welding the door steel plate 22 to the door frame 21, the structural strength of the door 2 can be guaranteed. Combined with its connection to the door frame 1 through the hinge 5, the reliability of the connection between the door 2 and the door frame 1 can be guaranteed.
[0048] The wire mesh 23 is mainly used for the load-bearing of the heavy decorative layer 3 on the door leaf 2. Considering that the heavy decorative layer 3 is only installed on the outer side of the door leaf 2, the wire mesh 23 in this application is welded to the outer side of the door leaf 2, which is beneficial to provide an attachment base for the heavy decorative surface.
[0049] By placing the heavy decorative layer 3 on the outside of the wire mesh 23 and covering the entire area of the door leaf 2, the heavy decorative layer 3 of the door leaf 2 can maintain the unity and coordination with the wall decoration layer, thereby improving the visual sensory loss caused by existing decorative forms such as transfer printing.
[0050] In one specific embodiment, in order to ensure the structural strength of the door leaf 2, the door leaf 2 adopts a double frame structure, which can enhance the overall structural strength of the door leaf frame 21 and realize the effective bearing of the door leaf 2 on the heavy decorative layer 3.
[0051] Specifically, the double-frame door leaf frame 21 includes a root frame 21a and a main frame 21b. The root frame 21a is located on the side of the door leaf 2 that connects to the door frame 1, while the main frame 21b is located on the side of the door leaf 2 away from the connection. Meanwhile, to ensure the overall structural strength of the door leaf frame 21, the main frame 21b and the root frame 21a are connected as a single unit, thus establishing a stable and reliable connection foundation for the load of the heavy decorative layer 3 on the door leaf 2.
[0052] Based on the basic functions of a fire door, in order to ensure the fire resistance performance of the fire door, a cover seam protrusion 24 is provided on the other side of the door leaf steel plate 22 opposite to the root frame 21a. Specifically, the cover seam protrusion 24 is provided on the main frame 21b, which can form a cover seam structure between the door leaf 2 and the door frame 1, or between the door leaves 2 and the door leaves 2, thereby ensuring the effective fire resistance performance of the fire door.
[0053] The fire door in this utility model can be either a double door or a single door.
[0054] When the fire door is a double door, the door leaf 2 includes a double door leaf 2. The cover seam protrusions 24 on the two door leaves 2 correspond to the cover of the corresponding double door leaves 2. Specifically, the cover seam protrusions 24 on the two door leaves 2 are respectively set on the inner and outer sides and staggered, so as to maintain effective fire resistance, reduce interference between the two door leaves 2, and maintain the linkage of the two door leaves 2.
[0055] When the fire door is a single door, the door leaf 2 includes a single door leaf 2, and the cover seam protrusion 24 on the single door leaf 2 corresponds to the door frame 1 to which the single door leaf 2 is connected, thereby maintaining the effective fire resistance of the single door leaf 2.
[0056] The door frame 21 of this utility model includes a grid-like multi-compartment frame, and the interior of the door frame 21 is filled with perlite board 4. The grid-like multi-compartment frame can ensure the structural strength of the door frame 21. At the same time, by filling the interior of the door frame 21 with perlite board 4, a counterweight effect of the door 2 can be achieved, avoiding the heavy decorative layer 3 from causing uneven weighting of the door 2.
[0057] Perlite board 4 is specifically a cement perlite composite board, which is lighter and cheaper than cement mortar, and can reduce the processing and manufacturing cost of fire doors while ensuring the counterweight effect.
[0058] In this invention, the stone or wood decorative layer is attached to the wire mesh 23 by cement or structural adhesive. The wire mesh 23 enhances the adhesion of the stone or wood decorative layer to the door panel 22, achieving a stable and reliable bonding effect.
[0059] The door leaf 2 structure in this utility model can ensure the overall structural strength of the door leaf 2, thereby enabling the thick decorative layer 3 to be reliably attached to the door leaf 2.
[0060] In another specific embodiment, from the connection angle of the door leaf 2 on the door frame 1, the hinge 5 includes a concealed hinge 5, which can be hidden inside the door frame 1. The concealed hinge 5 specifically adopts a 3.0mm hinge plate, which can enhance the connection strength between the door leaf 2 and the door frame 1.
[0061] The concealed hinge 5 is connected to the side of the door leaf 2, which facilitates the concealed installation of the concealed hinge 5 inside the door frame 1. Multiple concealed hinges 5 are connected to the same door leaf 2. The multiple concealed hinges 5 are arranged at intervals in the height direction of the door leaf 2. Two or three can be set according to the overall weight of the door leaf 2.
[0062] The door frame 1 has multiple door frame grooves (not shown in the figure), and the concealed hinges 5 are installed in the door frame grooves one by one. The door frame groove is specifically a notch groove structure set on the door frame 1, which allows the hinge plate of the concealed hinge 5 to rotate horizontally in the notch groove.
[0063] Furthermore, the door frame 1 includes a door frame groove 11 for installing the door leaf 2. The door frame groove 11 extends vertically along the height direction of the door frame 1. A gap is left between the door leaf 2 and the door frame groove 11, which facilitates the door leaf 2 to open 90° relative to the door frame 1 and the door leaf 2 to fit against the door frame 1.
[0064] Specifically, when the door leaf 2 is closed, the depth h of the door frame groove 11 is greater than the thickness d of the door leaf 2 relative to the thickness direction of the door leaf 2. Specifically, the depth of the door frame groove 11 is 2-3 mm greater than the thickness of the door leaf 2, which can provide installation space for the fireproof seal 6, thereby ensuring fireproof requirements.
[0065] The door frame groove 11 includes an L-shaped mounting groove in the transverse section. The depth direction of the door frame groove 11 forms the long side of the mounting groove. A fireproof seal 6 is provided between the inner surface of the door leaf 2 and the short side of the mounting groove. The fireproof seal 6 is specifically in the form of a sealing strip. Preferably, the sealing strip is provided on the outer circumferential surface of the door frame 1 and the door leaf 2 to ensure a reliable fireproof effect.
[0066] The decorative fire door of this utility model, through the combination of door leaf 2, door frame 1 and concealed hinge 5, can achieve a relatively closed state of 2° for the door leaf, while maintaining a distance of 30mm from the door frame 1, thereby achieving the adhesion of the heavy decorative layer 3 to the outward pushing side of the door leaf 2, and after the heavy decorative layer 3 is attached to the door leaf 2, it will not hit the wall when the door leaf 2 is opened.
[0067] The door frame 1 is made of 1.2mm cold-rolled galvanized steel sheet, the hinge plate is made of 3.0mm hinge plate, and the door leaf steel plate 22 is made of 0.8mm cold-rolled galvanized steel sheet.
[0068] By concealing the hinge 5 inside the door frame 1, the external stress of the door frame 1 is strengthened. In addition to the load-bearing capacity of the door leaf 2 itself, it can also bear the weight of the stone outside the door leaf 2. The structure is stable, not easy to deform, and more solid.
[0069] The door leaf 2 uses a grid-like door leaf frame 21 inside, and the surface steel wire mesh 23 is welded to the surface of the door leaf 2. The door leaf frame 21 is fully welded to the door leaf steel plate 22, which increases the surface load-bearing capacity of the door leaf 2 and meets the load-bearing capacity brought by different finishes. The surface steel wire mesh 23 can also meet the adhesion of cement and structural adhesive at the same time.
[0070] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.
[0071] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A decorative fire door, characterised in that, include: A door frame and a door leaf, wherein the door leaf is hinged to the door frame for opening. The door leaf includes a door leaf frame, a door leaf steel plate, and a wire mesh disposed on the outer surface of the door leaf steel plate. The door leaf steel plate is fully welded to the door leaf frame, and the wire mesh is welded to the outward pushing side of the door leaf. A decorative layer is provided on the outer side of the wire mesh, and the decorative layer covers the entire area of the door leaf.
2. The decorative fire door according to claim 1, wherein The door frame includes a root frame and a main frame. The root frame is located on the side where the door is connected to the door frame, and the main frame is connected to the root frame as an integral structure.
3. The decorative fire door of claim 2, wherein, The door leaf steel plate has a cover seam protrusion on the opposite side of the root frame.
4. The decorative fire door of claim 3, wherein, The door leaf includes a double-leaf door leaf and a single-leaf door leaf. The protruding edge of the cover seam corresponds to the cover of the double-leaf door leaf, or the protruding edge of the cover seam corresponds to the cover of the door frame of the single-leaf door leaf.
5. The decorative fire door of claim 1, wherein, The door frame consists of a grid-like multi-cell frame, and the interior of the door frame is filled with perlite slabs.
6. The decorative fire door of claim 5, wherein, The decorative layer includes a stone decorative layer or a wood decorative layer, which is attached to the wire mesh by cement or structural adhesive.
7. The decorative fire door according to any one of claims 1-6, wherein, The hinge includes a concealed hinge, which is connected to the side of the door leaf; Multiple concealed hinges are connected to the same door leaf, and multiple door frame grooves are provided on the door frame. The concealed hinges are installed in the door frame grooves one by one.
8. The decorative fire door of claim 7, wherein, The door frame includes a door frame groove for installing the door leaf, the door frame groove extending vertically along the height of the door frame, and a gap is left between the door leaf and the door frame groove.
9. The decorative fire door of claim 8, wherein, When the door is closed, the depth of the door frame groove is greater than the thickness of the door relative to the thickness of the door.
10. The decorative fire door of claim 9, wherein, The door frame groove includes an L-shaped mounting groove in the transverse section. The depth direction of the door frame groove forms the long side of the mounting groove. A fireproof seal is provided between the inner surface of the door leaf and the short side of the mounting groove.