Double-layer frame structure with good bending resistance

By setting a mesh adhesive between the top and bottom layers of double-layer solid wood flooring, the problem of poor dimensional stability of double-layer solid wood flooring is solved, achieving higher tensile strength and deformation resistance, and improving the aesthetics and service life of the flooring.

CN224119850UActive Publication Date: 2026-04-14DEQING SHENGFEI WOOD IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEQING SHENGFEI WOOD IND CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing double-layer solid wood flooring suffers from poor dimensional stability, is prone to cracking and deformation, which limits its development and application.

Method used

A mesh adhesive is placed between the top and bottom layers. The mesh is made of cross-woven warp and weft threads to form a square mesh structure. It is made of glass fiber, polycarbonate yarn, abrasion-resistant rubber yarn, Teflon fiber, T400 elastic fiber and nylon fiber to enhance the bonding performance.

Benefits of technology

It improves the tensile strength and deformation resistance of the double-layer frame structure, reduces the possibility of cracking and deformation, and enhances the dimensional stability and aesthetics of the floor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224119850U_ABST
Patent Text Reader

Abstract

The utility model discloses a double-layer frame structure with better bending resistance. The double-layer frame structure comprises a double-layer frame body, the double-layer frame body comprises a surface layer plate and a bottom layer plate, and the surface layer plate is arranged on the upper side of the bottom layer plate; a gridding cloth bonding body capable of bonding the surface layer plate and the bottom layer plate together and effectively improving the overall bending resistance and the anti-cracking performance of the double-layer frame body is arranged between the surface layer plate and the bottom layer plate. According to the double-layer solid wood floor, the gridding cloth bonding body is arranged between the surface layer plate and the bottom layer plate, so that the size stability of the double-layer solid wood floor can be effectively improved, the tensile strength and the deformation resistance of the double-layer frame structure can be effectively improved, the double-layer frame structure is not prone to cracking and deformation, and development and application of the double-layer solid wood floor are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of solid wood flooring technology, and in particular to a double-layer frame structure with good bending resistance. Background Technology

[0002] Solid wood flooring is a floor covering material made from natural wood that has been dried and processed. Also known as hardwood flooring, it is made directly from solid wood. It retains the natural grain of the wood, is a poor conductor of heat, providing warmth in winter and coolness in summer, and is comfortable underfoot and safe to use, making it an ideal material for bedrooms, living rooms, studies, and other flooring applications.

[0003] Currently, most solid wood flooring has a three-layer structure, consisting of a top layer, a core layer, and a bottom layer. These three layers are interwoven and glued together. The top layer is typically made of 3-4mm thick precious hardwood, while the core and bottom layers are mostly fast-growing timbers such as poplar and pine. Due to its natural wood texture, ease of installation and maintenance, ideal hardness, wear resistance, scratch resistance, and ease of cleaning, it is quite popular with consumers. However, three-layer solid wood flooring has the following problems in use: it requires a relatively flat subfloor; uneven subfloors can cause creaking. Additionally, three-layer solid wood flooring has large dimensions and limited installation options, failing to meet customers' needs for diverse parquet flooring patterns. Furthermore, the numerous adhesive layers in three-layer solid wood flooring lead to the slow release of formaldehyde, which can pollute the home environment. Therefore, it is necessary to design two-layer solid wood flooring that is more resource-efficient, environmentally friendly, stable, and offers more diverse installation options.

[0004] Current double-layer solid wood flooring technology consists of a top layer and a bottom layer, glued together. The top layer is located on top, and the bottom layer is on the bottom, with an installation method similar to conventional three-layer solid wood flooring. The main difference lies in the structure of the bottom layer. Since the grain of the top and bottom layers is essentially the same, the stress distribution in double-layer solid wood flooring is unbalanced, resulting in poor dimensional stability and a high susceptibility to cracking and warping. This significantly limits the development and application of double-layer solid wood flooring. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model aims to provide a double-layer frame structure with good bending resistance. The double-layer frame structure has a reasonable overall design, simple structure, and convenient operation. The mesh fabric adhesive set between the surface board and the bottom board can effectively improve the dimensional stability of the double-layer solid wood flooring, and can effectively improve the tensile strength and deformation resistance of the double-layer frame structure, making it less prone to cracking and deformation, which is conducive to the development and application of double-layer solid wood flooring.

[0006] To solve the above technical problems, this utility model adopts the following technical solution:

[0007] A double-layer frame structure with good bending resistance includes a double-layer frame body;

[0008] The double-layer frame body includes a top layer plate and a bottom layer plate, with the top layer plate disposed on the upper side of the bottom layer plate;

[0009] The feature is that a mesh adhesive is provided between the surface plate and the bottom plate, which can bond them together and effectively improve the overall bending resistance and crack resistance of the double-layer frame body.

[0010] In a preferred embodiment of the present invention, the mesh fabric adhesive body includes a mesh fabric, the upper surface of which is provided with a first adhesive layer for bonding the top layer plate, and the lower surface of which is provided with a second adhesive layer for bonding the bottom layer plate.

[0011] In a preferred embodiment of the present invention, the mesh fabric includes warp and weft threads, which are interwoven to form a mesh fabric with a square mesh structure.

[0012] In a preferred embodiment of this utility model, the meridians and parallels are vertically distributed.

[0013] In a preferred embodiment of the present invention, the warp yarn includes glass fiber filaments, polycarbonate yarn, and abrasion-resistant rubber yarn, which are spirally twisted together to form a warp yarn with a diameter of 0.45-0.60 mm.

[0014] In a preferred embodiment of this utility model, the weft yarn includes Teflon fiber filaments, T400 elastic fiber filaments and nylon fiber filaments, which are spirally twisted together to form a weft yarn with a diameter of 0.45-0.60 mm.

[0015] In a preferred embodiment of this utility model, the size of the square mesh structure of the mesh fabric is 2cm*2cm.

[0016] In a preferred embodiment of the present invention, a decorative layer is provided on the upper surface of the surface plate to facilitate decoration.

[0017] In a preferred embodiment of the present invention, a wear-resistant layer is provided on the upper surface of the decorative layer, which can effectively improve its wear resistance.

[0018] Compared with the prior art, the present invention adopts a reasonable overall structural design, simple structure and convenient operation. The mesh cloth adhesive set between the surface board and the bottom board can effectively improve the dimensional stability of the double-layer solid wood flooring, and can effectively improve the tensile strength and deformation resistance of the double-layer frame structure, making it less likely for the double-layer frame structure to crack and deform, which is conducive to the development and application of double-layer solid wood flooring. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is the front view of the present invention. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0023] Reference Figures 1-2 As shown in the figure, a double-layer frame structure with good bending resistance is presented, which includes a double-layer frame body.

[0024] The double-layer frame body includes a top plate 100 and a bottom plate 200. The top plate 100 is disposed on the upper side of the bottom plate 200. A mesh fabric adhesive 300 is provided between the top plate 100 and the bottom plate 200 to bond them together and effectively improve the overall bending resistance and crack resistance of the double-layer frame body.

[0025] The mesh fabric adhesive 300 includes a mesh fabric 310. The upper surface of the mesh fabric 310 is provided with a first adhesive layer 320 for bonding the top layer 100, and the lower surface of the mesh fabric 310 is provided with a second adhesive layer 330 for bonding the bottom layer 200. This structure can effectively improve the tensile strength and deformation resistance of the double-layer frame structure, making it less prone to cracking and deformation.

[0026] The mesh fabric 310 includes warp and weft threads, which are woven together to form a mesh fabric 310 with a square mesh structure. The square mesh structure of the mesh fabric 310 has a size of 2cm*2cm, and the warp and weft threads are distributed perpendicularly. This structure effectively improves the stability of the mesh fabric and further enhances the stability of the double-layer frame structure.

[0027] The warp yarns consist of glass fiber filaments, polycarbonate yarn, and abrasion-resistant rubber yarn. The glass fiber filaments, polycarbonate yarn, and abrasion-resistant rubber yarn are spirally twisted together to form a warp yarn with a diameter of 0.45-0.60 mm.

[0028] Fiberglass filaments are made of fiberglass material, which has a strong flame-retardant effect, thus effectively improving the flame-retardant effect of the mesh fabric. Polycarbonate yarn is made of polycarbonate material, which has high strength and elasticity, low forming shrinkage, and good dimensional stability, making the surface of the mesh fabric less prone to deformation. It is odorless, tasteless, and harmless to the human body, making it more environmentally friendly and hygienic to use.

[0029] Wear-resistant rubber yarn is made from natural latex collected from rubber trees. After filtration, purification, coagulation, dehydration, washing, granulation, drying, grading, and packaging, solid block natural rubber is obtained, which has very good wear resistance, thus effectively improving the wear resistance of the mesh fabric surface.

[0030] The weft yarn consists of Teflon fiber filaments, T400 elastic fiber filaments, and nylon fiber filaments, which are spirally twisted together to form a weft yarn with a diameter of 0.45-0.60 mm.

[0031] Teflon fiber filaments are made of Teflon material and have unique and excellent heat resistance (180-260℃), low temperature resistance (-200℃), and dielectric properties. They are also resistant to acid and alkali corrosion, which can effectively improve the service life of the mesh fabric. T400 elastic fiber filaments are modified high-elasticity yarns made from functional raw materials and technologies from DuPont, USA. They can be woven directly without twisting and have excellent elasticity and elastic recovery. Nylon fiber filaments are made of nylon fiber and have the characteristics of high strength, good impact resistance, good abrasion resistance, good fatigue resistance, and good corrosion resistance.

[0032] A decorative layer 500 is provided on the upper surface of the surface board 100 to facilitate decoration. The decorative layer 500 can effectively improve the aesthetic performance of the double-layer solid wood flooring manufactured using the double-layer frame structure, and further improve the practical performance of the double-layer frame structure.

[0033] A wear-resistant layer 400 is provided on the upper surface of the decorative layer 500, which can effectively improve its wear resistance. The wear-resistant layer 400 can effectively improve the wear resistance of the double-layer frame structure and further improve the service life of the double-layer frame structure.

[0034] In summary, the present invention adopts a reasonable overall structural design, is simple in structure, and is easy to operate. The mesh adhesive set between the surface board and the bottom board can effectively improve the dimensional stability of the double-layer solid wood flooring, and can effectively improve the tensile strength and deformation resistance of the double-layer frame structure, making it less prone to cracking and deformation of the double-layer frame structure, which is conducive to the development and application of double-layer solid wood flooring.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-layer frame structure with good bending resistance, comprising a double-layer frame body; The double-layer frame body includes a top layer plate and a bottom layer plate, with the top layer plate disposed on the upper side of the bottom layer plate; characterized in that A mesh adhesive is provided between the surface plate and the bottom plate to bond them together and effectively improve the overall bending resistance and crack resistance of the double-layer frame body.

2. The dual frame structure of claim 1, wherein: The mesh fabric adhesive includes a mesh fabric, the upper surface of which is provided with a first adhesive layer for bonding the top layer, and the lower surface of which is provided with a second adhesive layer for bonding the bottom layer.

3. A double-layer frame structure with good bending resistance as described in claim 2, characterized in that: The mesh fabric includes warp and weft threads, which are woven together in a crisscross pattern to form a mesh fabric with a square mesh structure.

4. A double-layer frame structure with good bending resistance as described in claim 3, characterized in that: The meridians and parallels are perpendicularly distributed.

5. A double-layer frame structure with good bending resistance as described in claim 3, characterized in that: The warp yarn comprises glass fiber filaments, polycarbonate yarn, and abrasion-resistant rubber yarn, which are spirally twisted together to form a warp yarn with a diameter of 0.45-0.60 mm.

6. A double-layer frame structure with good bending resistance as described in claim 3, characterized in that: The weft yarn includes Teflon fiber filaments, T400 elastic fiber filaments, and nylon fiber filaments, which are spirally twisted together to form a weft yarn with a diameter of 0.45-0.60 mm.

7. A double-layer frame structure with good bending resistance as described in claim 3, characterized in that: The square mesh structure of the mesh fabric has a size of 2cm*2cm.

8. A double-layer frame structure with good bending resistance as described in claim 1, characterized in that: A decorative layer is provided on the upper surface of the surface plate to facilitate decoration.

9. A double-layer frame structure with good bending resistance as described in claim 8, characterized in that: A wear-resistant layer is provided on the upper surface of the decorative layer to effectively improve its wear resistance.