Bending-resistant high-strength composite door
By introducing a bending-resistant structure into the composite door, including the connection of the cross-shaped reinforced rod and the I-plate, the problem of insufficient bending strength of the composite door is solved, and the high strength and stability of the door panel are achieved to prevent deformation and fall off.
Patent Information
- Application Number
- CN202421999361.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-19
AI Technical Summary
The existing composite doors have poor bending strength and are prone to deformation after long-term use, which is insufficient safety.
It adopts a bending-resistant structure, including mounting frames, connecting rods, connecting blocks, reinforcement rods, I-plates and I-plates, which are fixed by cross-shaped reinforcement and welding, and are supported with a fill layer to enhance the stability and deformation resistance of the door panel.
The bending strength of the door panel is improved, deformation and fall off, and safety is enhanced. The filling layer prevents thermal expansion and contraction, making the structure more stable and reliable.
Smart Images

Figure CN223089200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite doors, in particular to a bending-resistant high-strength composite door. Background Art
[0002] In the furniture industry, as people's requirements for doors become higher and higher, they require them to be beautiful, environmentally friendly and lightweight, as well as moisture-proof, soundproof and rigid. Therefore, people have developed wood composite door panels. The structures of these wood composite door panels are diverse and different.
[0003] Composite doors are made of a variety of materials, including wood, plywood, steel plate, density board, solid wood veneer, etc. Among them, the core of solid wood composite doors is mostly made of pine, fir or imported filling materials, and the density board and solid wood veneer are attached to the outside, and are made after high temperature hot pressing.
[0004] However, currently most door panels are hollow door panels or single door panels, which have poor bending strength. After long-term use of the door, they are prone to bending and deformation, and have poor safety factors when impacted. Utility Model Content
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a high-strength composite door that is resistant to bending, so as to solve the technical problems that currently most door panels are made of hollow door panels or single door panels, which have poor resistant to bending strength, are prone to bending and deformation after long-term use of the door, and have a poor safety factor when subjected to impact.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A high-strength anti-bending composite door comprises: a door frame, a door leaf outer frame is movably mounted inside the door frame through hinges, and an anti-bending structure is arranged inside the door leaf outer frame;
[0008] The anti-bending structure includes an installation frame, a connecting rod, a connecting block, a reinforcement rod, an I-shaped plate and an I-shaped frame. One end of the reinforcement rod is fixedly connected to the four corners of the inner wall of the installation frame, and the other end of the reinforcement rod is fixedly connected to the connecting block. The reinforcement rods are installed in a cross shape, and the I-shaped plate is fixedly inserted into the interior of the connecting block. The left and right adjacent installation frames are connected by the I-shaped frame, and the upper and lower adjacent installation frames are connected by the connecting rod. The installation frame located at the edge is fixedly connected to the inner wall of the door leaf outer frame, and a filling layer is provided at the gap between the anti-bending structure and the door leaf outer frame.
[0009] Furthermore, the anti-bending structure is provided with two groups and is in contact with the front and rear inner walls of the door leaf outer frame respectively, and the installation frame is evenly distributed inside the door leaf outer frame.
[0010] Further, a reinforcement plate and a fireproof plate are arranged inside the outer frame of the door leaf and on the inner sides of the anti-bending structures on both sides. One outer wall of the reinforcement plate and the fireproof plate is in contact with the anti-bending structure, and the other outer wall of the reinforcement plate and the other outer wall of the fireproof plate are fixedly connected.
[0011] Further, a sealing plate is arranged at the top of the outer frame of the door leaf, and protective plates are fixedly installed on the front and rear outer walls of the outer frame of the door leaf.
[0012] Further, a convex block is fixedly installed on the outside of the door frame, and the convex block is inserted into the interior of the wall during installation.
[0013] Further, a handle is fixedly installed on one side surface of one of the protective plates, and a door lock assembly is arranged between the other side of the outer frame of the door leaf and the door frame for limiting connection.
[0014] Advantages of the present utility model:
[0015] By providing an anti-bending structure, during use, the entire anti-bending structure is inserted into the outer frame of the door leaf and fixed by welding. The cross-shaped reinforcement rods are adopted, and the triangular structure is used for reinforcement, making the door panel have higher strength and not easily deformed. At the same time, the I-shaped plate is inserted for reinforcement, making the connecting block have higher strength, and the I-shaped frame is used to connect the installation frame, making the connection of the installation frame more stable and not easily falling off. At the same time, the hollow installation frame is adopted, greatly reducing its structural quality, and the filling layer is used for filling, which can play an auxiliary support role and also prevent the door panel from cracking due to thermal expansion and contraction, making the structure of the door panel more stable and reliable. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 Schematic three-dimensional view of the anti-bending structure of the anti-bending high-strength composite door according to the embodiment;
[0018] Figure 2 Schematic three-dimensional structure view of the anti-bending high-strength composite door according to the embodiment;
[0019] Figure 3 Schematic cross-sectional view of the anti-bending high-strength composite door according to the embodiment;
[0020] Figure 4This is a schematic top - down internal structure diagram of an embodiment of the anti - bending high - strength composite door.
[0021] Explanation of the markings in the figure: 1. Door frame; 11. Bump; 2. Outer frame of the door leaf; 21. Sealing plate; 3. Anti - bending structure; 31. Installation frame; 32. Connecting rod; 33. Connecting block; 34. Reinforcing rod; 35. I - shaped plate; 36. Filling layer; 37. I - shaped frame; 4. Protective plate; 5. Reinforcing plate; 6. Fire - proof plate. Detailed implementation manners
[0022] Next, in combination with the drawings in the embodiments of the present utility model Figures 1 - 4 , the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] It should be understood that when used in this specification and the appended claims, the terms "comprises" and "comprising" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.
[0024] It should also be understood that the terms used in this specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in this specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to include the plural forms.
[0025] It should be further understood that the term "and / or" used in this specification of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0026] Please refer to Figures 1 - 4 As shown, an anti - bending high - strength composite door includes: a door frame 1, an outer frame of the door leaf 2 is movably installed inside the door frame 1 through a hinge, and an anti - bending structure 3 is arranged inside the outer frame of the door leaf 2;
[0027] The anti-bending structure 3 includes a mounting frame 31, a connecting rod 32, a connecting block 33, a reinforcing rod 35, an I-shaped plate 34 and an I-shaped frame 37. One end of the reinforcing rod 35 is fixedly connected to the four corners of the inner wall of the mounting frame 31, and the other end of the reinforcing rod 35 is fixedly connected to the connecting block 33. The reinforcing rods 35 are installed in a cross shape. The I-shaped plate 34 is fixedly inserted into the inside of the connecting block 33. The left and right adjacent mounting frames 31 are connected by the I-shaped frame 37, and the upper and lower adjacent mounting frames 31 are connected by the connecting rod 32. The mounting frame 31 at the edge is fixedly connected to the inner wall of the door leaf outer frame 2. A filling layer 36 is arranged at the gap between the anti-bending structure 3 and the door leaf outer frame 2.
[0028] Specifically, by providing the anti-bending structure 3, during use, the entire anti-bending structure 3 is inserted into the door leaf outer frame 2 and fixed by welding. The cross-shaped reinforcing rods 35 are used, and the triangular structure is used for reinforcement, making the strength of the door panel higher and not prone to deformation. At the same time, the I-shaped plate 34 is inserted for reinforcement, making the strength of the connecting block 33 higher. And the I-shaped frame 37 is used to connect the mounting frames 31, making the connection of the mounting frames 31 more stable and not prone to falling off. At the same time, the hollow mounting frame 31 is used, greatly reducing its structural quality. And the filling layer 36 is used for filling, which can play a role in auxiliary support and also prevent the door panel from cracking due to thermal expansion and contraction, making the structure of the door panel more stable and reliable.
[0029] In this embodiment, two groups of anti-bending structures 3 are provided and are respectively in contact with the front and rear inner walls of the door leaf outer frame 2. The mounting frames 31 are evenly distributed inside the door leaf outer frame 2.
[0030] Specifically, the double anti-bending structure 3 can protect the front and rear sides of the door leaf outer frame 2, with a wider protection range and better range effect.
[0031] Reinforcing plates 5 and fireproof plates 6 are arranged inside the door leaf outer frame 2 and on the inner sides of the two anti-bending structures 3. One outer wall of each of the reinforcing plates 5 and the fireproof plates 6 is in contact with the anti-bending structure 3, and the other outer wall of the reinforcing plate 5 and the other outer wall of the fireproof plate 6 are fixedly connected.
[0032] Specifically, the reinforcing plates 5 are used, making the door leaf outer frame 2 not prone to deformation. At the same time, the fireproof plates 6 are used, which also play a certain fireproof role, making the composite door more functional and having a wider application range.
[0033] A sealing plate 21 is arranged at the top of the door leaf outer frame 2. Protective plates 4 are fixedly installed on the front and rear outer walls of the door leaf outer frame 2. A convex block 11 is fixedly installed on the outside of the door frame 1. The convex block 11 is inserted into the wall during installation. A handle is fixedly installed on one side surface of one of the protective plates 4. A door lock assembly is arranged in a limiting connection between the other side of the door leaf outer frame 2 and the door frame 1.
[0034] Specifically, the protrusion 11 is inserted into the wall for fixing, which can prevent the door frame 1 from falling off and greatly enhance the stability of the door frame 1. The door lock structure can adopt existing smart locks, anti-theft locks, etc. on the market, which can be directly purchased, installed and used.
[0035] In summary, compared with the prior art, the composite door has at least the following beneficial effects: by providing an anti-bending structure 3, when in use, the entire anti-bending structure 3 is inserted into the door leaf outer frame 2 and fixed by welding, and a cross-shaped reinforcement rod 35 and a triangular structure are used for reinforcement, so that the door panel has higher strength and is not easy to deform. At the same time, an I-shaped plate 34 is used for insertion and reinforcement, so that the strength of the connecting block 33 is higher, and an I-shaped frame 37 is used to connect the mounting frame 31, so that the connection of the mounting frame 31 is more stable and not easy to fall off. At the same time, a hollow mounting frame 31 is used, so that its structural mass is greatly reduced, and a filling layer 36 is used for filling, which can play a role of auxiliary support, and also prevents thermal expansion and contraction from causing the door panel to crack, etc., so that the structure of the door panel is more stable and reliable.
[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A bending-resistant high-strength composite door, characterized in that, Including: A door frame (1), inside which a door leaf outer frame (2) is movably installed through hinges, and an anti-bending structure (3) is arranged inside the door leaf outer frame (2); The anti-bending structure (3) includes a mounting frame (31), connecting rods (32), connecting blocks (33), reinforcing rods (35), I-shaped plates (34) and I-shaped frames (37). One end of the reinforcing rod (35) is fixedly connected to the four corners of the inner wall of the mounting frame (31), the other end of the reinforcing rod (35) is fixedly connected to the connecting block (33), the reinforcing rods (35) are installed in a cross shape, the I-shaped plate (34) is fixedly inserted into the connecting block (33), the left and right adjacent mounting frames (31) are connected by the I-shaped frame (37), the upper and lower adjacent mounting frames (31) are connected by the connecting rods (32), the mounting frame (31) at the edge is fixedly connected to the inner wall of the door leaf outer frame (2), and a filling layer (36) is arranged at the gap between the anti-bending structure (3) and the door leaf outer frame (2).
2. The anti-bending high-strength composite door according to claim 1, characterized in that, Two groups of the anti-bending structures (3) are provided and are respectively in contact with the front and rear inner walls of the door leaf outer frame (2), and the mounting frames (31) are evenly distributed inside the door leaf outer frame (2).
3. The anti-bending high-strength composite door according to claim 2, characterized in that, Reinforcing plates (5) and fireproof plates (6) are arranged inside the door leaf outer frame (2) and on the inner sides of the two side anti-bending structures (3). One outer wall side of the reinforcing plate (5) and the fireproof plate (6) is in contact with the anti-bending structure (3), and the other outer wall sides of the reinforcing plate (5) and the fireproof plate (6) are fixedly connected.
4. The anti-bending high-strength composite door according to claim 3, characterized in that, A sealing plate (21) is arranged at the top of the door leaf outer frame (2), and protective plates (4) are fixedly installed on the front and rear outer walls of the door leaf outer frame (2).
5. The anti-bending high-strength composite door according to claim 4, characterized in that, A convex block (11) is fixedly installed on the outside of the door frame (1), and the convex block (11) is inserted into the wall body during installation.
6. The anti-bending high-strength composite door according to claim 4, wherein, A handle is fixedly installed on one side surface of one of the protective plates (4), and a door lock assembly is arranged between the other side of the door leaf outer frame (2) and the door frame (1) for limit connection.