Door body structure using metal composite material

By adopting a door structure made of metal composite materials, the problem of composite wood doors being easily damaged under external impact has been solved, enhancing the structural strength and fire resistance of the door and making it easier to install.

CN224413444UActive Publication Date: 2026-06-26ZHEJIANG YANLING METAL DECORATION ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YANLING METAL DECORATION ENG CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing composite wood doors are prone to cracking, deformation, or detachment when subjected to external impacts, affecting their appearance and lifespan, and lacking in durability and functionality.

Method used

The door structure uses metal composite materials, including a combination design of hollow outer frame, metal plate, side frame and side panel, which is fixed by adhesive bonding to increase structural strength and reduce self-weight.

Benefits of technology

It improves the strength and fire resistance of the door, while also making it easy to install and use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to door structure technical field, concretely relates to a door body structure adopting metal composite material, including door frame and door structure, and door structure is fixedly connected with door frame through the hinge, and the door structure includes the hollow outer frame, sets up in the metal sheet of outer frame and is fixed in the side frame of metal sheet upper and lower both ends, and the inside outside of metal sheet is provided with the side plate, the inner side wall of door frame is fixed with the sealing strip, the middle part of outer frame is provided with the inner groove, and metal sheet is provided with two groups in the inner groove, and the middle part of every group metal sheet is all the inwardly bent structure, and the inside metal sheet structure plays the support structure in the outer frame, improves the structural strength of outer frame, and the top is inserted in the groove body formed in the upper and lower sides of two groups metal sheets through the side frame structure, and is fixedly connected through the bonding with the side plate, and the side plate adopts the laminated board structure, and cooperates the weight reduction hole structure, and the structure of the side frame with the middle groove, can reduce the dead weight of door structure, is convenient for user to install and use.
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Description

Technical Field

[0001] This utility model relates to the field of door structure technology, specifically to a door structure using metal composite materials. Background Technology

[0002] Composite wood doors are door panels made by bonding multiple layers of high-quality wood strips under high pressure and high temperature. The interior is filled with environmentally friendly wood, and the surface is covered with a wood veneer layer, giving them the appearance of solid wood and the characteristics of plywood structure. Their main components include the door panel, door frame, door core, and door casing. The density, bonding strength, and water resistance of the glued layers have undergone rigorous testing to effectively prevent deformation and cracking. However, composite wood doors may experience a series of problems under low-intensity use, affecting not only their appearance but also their durability and functionality.

[0003] Composite wood doors with low internal strength are more prone to damage when subjected to external impacts. For example, the door leaf may crack, deform, or fall off after being hit, seriously affecting the appearance and lifespan of the door. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a door structure using metal composite materials, which can effectively solve the problems in the existing technology.

[0006] Technical solution

[0007] This utility model provides a door structure using metal composite materials, including a door frame and a door structure. The door structure is fixedly connected to the door frame by hinges. The door structure includes a hollow outer frame, a metal plate disposed inside the outer frame, and side frames fixed to the upper and lower ends of the metal plate. Side plates are disposed on the inner and outer sides of the metal plate.

[0008] Furthermore, a sealing strip is fixed to the inner wall of the door frame.

[0009] Furthermore, an inner groove is provided in the middle of the outer frame, and two sets of metal plates are symmetrically arranged in the inner groove. The middle of each set of metal plates has an inwardly bent structure, and the gap between the two sets of metal plates is filled with a foam structure.

[0010] Furthermore, the side frame has a hollow structure with a central groove in its middle, and a groove is formed between the upper and lower ends of the two sets of metal plates, with the side frame disposed within the groove.

[0011] Furthermore, the two sets of side plates have through holes for weight reduction, and the side plates are bonded and fixed to the side wall of the metal plate by adhesive bonding.

[0012] Furthermore, the side panel is a laminated board structure.

[0013] Beneficial effects

[0014] This utility model adds a metal plate and side plate structure inside a hollow door structure. The internal metal plate structure acts as a supporting structure within the outer frame, improving the structural strength of the outer frame. The top is inserted into the grooves formed on the upper and lower sides of the two sets of metal plates through the side frame structure, and is fixedly connected to the side plate by adhesive. The side plate adopts a plywood structure, combined with a weight-reducing hole structure and a side frame structure with a central groove, which can reduce the self-weight of the door structure and facilitate installation and use by users.

[0015] In this device, by setting a combination structure of metal plate-side frame-side panel inside the outer frame, compared with the existing solid wooden door structure, this device has a metal plate structure inside, which can improve the strength of use and improve the fire resistance of both sides. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0018] Figure 2 This is the second structural schematic diagram of the present invention.

[0019] Figure 3 This is a cross-sectional view of the middle door structure of this utility model.

[0020] Figure 4 This is a structural exploded view of the middle door structure of this utility model.

[0021] Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0022] The labels in the diagram represent: 1. Door frame; 2. Sealing strip; 3. Door structure; 31. Outer frame; 311. Inner groove; 32. Metal plate; 33. Side frame; 331. Middle groove; 34. Side panel; 4. Hinge. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example: A door structure using metal composite materials, see attached figure. Figure 1 - Appendix Figure 5 The door structure includes a door frame 1 and a door structure 3. The door structure 3 is fixedly connected to the door frame 1 via hinges 4. The door structure 3 includes a hollow outer frame 31, a metal plate 32 disposed within the outer frame 31, and side frames 33 fixed to the upper and lower ends of the metal plate 32. Side plates 34 are provided on the inner and outer sides of the metal plate 32. By adding the metal plate 32 and side plates 34 within the hollow door structure 3, the internal metal plate 32 structure acts as a supporting structure within the outer frame 31, improving the structural strength of the outer frame 31. The top end is inserted into the grooves formed on the upper and lower sides of the two sets of metal plates 32 through the side frame 33 structure, and is fixedly connected to the side plates 34 by adhesive bonding. The side plates 34 adopt a plywood structure, combined with a weight-reducing hole structure and a side frame 33 with a central groove 331, which can reduce the self-weight of the door structure 3, making it easier for users to install and use.

[0026] A sealing strip 2 is fixed to the inner wall of the door frame 1; an inner groove 311 is provided in the middle of the outer frame 31, and two sets of metal plates 32 are symmetrically arranged in the inner groove 311, with the middle of each set of metal plates 32 having an inwardly bent structure, and the gap between the interiors of the two sets of metal plates 32 being filled with a foam structure; the side frame 33 is a hollow structure, with a central groove 331 provided in its middle, and a groove is formed between the upper and lower ends of the two sets of metal plates 32, and the side frame 33 is provided with Within the groove, two sets of side plates 34 have through-holes for weight reduction. The side plates 34 are bonded and fixed to the side wall of the metal plate 32 by adhesive. The side plates 34 are of a laminated board structure. In this device, by setting a combination structure of metal plate 32-side frame 33-side plate 34 inside the outer frame 31, compared with the existing solid wooden door structure 3, this device has a metal plate structure inside, which can improve the strength of use and improve the fire resistance of both sides.

[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A door structure using metal composite materials, characterized in that, It includes a door frame (1) and a door structure (3). The door structure (3) is fixedly connected to the door frame (1) by a hinge (4). The door structure (3) includes a hollow outer frame (31), a metal plate (32) set in the outer frame (31), and side frames (33) fixed at the upper and lower ends of the metal plate (32). Side plates (34) are provided on the inner and outer sides of the metal plate (32).

2. The door structure using metal composite materials according to claim 1, characterized in that, A sealing strip (2) is fixed to the inner wall of the door frame (1).

3. A door structure using metal composite materials according to claim 1, characterized in that, The outer frame (31) has an inner groove (311) in the middle, and two sets of metal plates (32) are symmetrically arranged in the inner groove (311). The middle part of each set of metal plates (32) is an inwardly bent structure, and the gap between the two sets of metal plates (32) is filled with a foam structure.

4. The door structure according to claim 1, wherein The side frame (33) is a hollow structure with a central groove (331) in the middle, and a groove is formed between the upper and lower ends of the two sets of metal plates (32), and the side frame (33) is set in the groove.

5. The door structure according to claim 4, wherein The two sets of side plates (34) have weight-reducing holes through them, and the side plates (34) are bonded and fixed to the side wall of the metal plate (32) by adhesive bonding.

6. The door structure employing a metal composite material according to claim 1, wherein The side panel (34) is a laminated board structure.