Anti-deformation composite wood floor

Abstract

The utility model discloses a kind of anti-deformation composite wood floor, belong to composite wood floor technical field, solve the problem that composite wood floor in traditional technology can be influenced by stress and be deformed by being damp, it includes: substrate layer, anti-deformation layer, wear layer, damp-proof layer, anti-deformation layer includes: first hardwood layer and second hardwood layer, both play the role of anti-deformation according to wood grain direction vertical and horizontal intersection;Substrate layer still has metal strip inlay, using the high tensile strength and low thermal expansion coefficient of metal material, initiative offset the internal stress generated by temperature and humidity change of composite material;The bottom of composite wood floor is also provided with force slot, depth is 50%-60% of composite wood floor thickness, can effectively release internal stress caused by temperature and humidity change, improve moisture balance efficiency, realize the effect of composite wood floor anti-deformation.

Description

Technical Field

[0001] This utility model belongs to the field of composite wood flooring technology, specifically relating to a deformation-resistant composite wood flooring. Background Technology

[0002] Engineered wood flooring is a floor covering material made of solid wood veneers or planks as the top layer, with the core and bottom layers made of fast-growing timber or plywood laminated together. Its structure comes in three-layer and multi-layer types. The surface layer often uses hardwoods such as oak or teak, and UV / PU lacquer treatment enhances its wear resistance. It features strong dimensional stability and beautiful natural wood grain, making it suitable for underfloor heating environments.

[0003] Nowadays, most composite wood flooring uses a compact, flat laying method. However, as the usage time increases, it will be affected by moisture and internal stress, causing the composite wood flooring to deform or even bulge at the gaps between the boards, which greatly affects daily life. Utility Model Content

[0004] In view of the problem that composite wood flooring in the prior art is deformed by stress and moisture, this utility model provides a deformation-resistant composite wood flooring. The purpose is to add an anti-deformation layer and metal strips to the composite wood flooring and to open a stress-relieving groove at the bottom to resist deformation.

[0005] The technical solution adopted in this utility model is as follows: A type of deformation-resistant composite wood flooring, characterized in that it comprises: Substrate layer; An anti-deformation layer is disposed on top of the substrate layer and is bonded to the substrate layer; A wear-resistant layer is disposed on top of the deformation-resistant layer, and the wear-resistant layer is bonded to the deformation-resistant layer. The deformation-resistant layer is located between the substrate layer and the wear-resistant layer. A moisture-proof layer is disposed at the bottom of the substrate layer and is bonded to the substrate layer.

[0006] Preferably, the deformation-resistant layer comprises: A first hardwood layer, which is glued to the substrate layer; The second hardwood layer is thermally fused to the first hardwood layer, and the second hardwood layer is also glued to the wear-resistant layer. The grain directions of the first hardwood layer and the second hardwood layer intersect.

[0007] By layering the first and second hardwood layers alternately with their grain directions perpendicular to each other, a stable, deformation-resistant core structure is formed. This design fully utilizes the anisotropic nature of wood, allowing the layers to restrain each other in both longitudinal and transverse directions, effectively counteracting internal stresses caused by changes in temperature and humidity, thus significantly suppressing overall shrinkage, expansion, or warping. Simultaneously, the high density and mechanical strength of hardwood itself, along with its rigid structure, further enhances the board's resistance to bending and shearing, fundamentally improving the flooring's dimensional stability and durability.

[0008] Preferably, the outer surface of the wear-resistant layer is covered with aluminum oxide, and the wear resistance of the wear-resistant layer is not less than 6000 revolutions.

[0009] Preferably, the moisture-proof layer is made of polyethylene.

[0010] Preferably, a metal strip is provided inside the substrate layer, the metal strip is fixedly connected to the substrate layer, the length extension direction of the metal strip is parallel to the length extension direction of the anti-deformation composite wood flooring, and the length of the metal strip is the same as the length of the substrate layer.

[0011] The core function of embedded metal strips is to actively counteract the internal stresses caused by temperature and humidity changes in composite materials by utilizing the high tensile strength and low coefficient of thermal expansion of metal materials. As a reinforcing skeleton, the metal strips can effectively constrain the expansion and contraction deformation of the substrate and improve the bending stiffness and dimensional stability of the overall structure through mechanical anchoring, thereby significantly reducing deformation problems such as warping and expansion.

[0012] Preferably, the bottom of the anti-deformation composite wood flooring is provided with a stress relief groove, the depth of which is 50%-60% of the thickness of the anti-deformation composite wood flooring.

[0013] The bottom has a stress relief groove with a depth of 50%-60% of the board height, which can effectively release the internal stress caused by temperature and humidity changes, improve the moisture balance efficiency, and significantly suppress the warping and deformation of the floor by achieving the optimal balance between maintaining sufficient structural strength and providing stress relief flexibility.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. By employing a composite structure of an anti-deformation layer and a substrate layer, and with a specially designed anti-deformation layer consisting of a first hardwood layer and a second hardwood layer with intersecting wood grain directions, the longitudinal and transverse stresses generated within the wood board are effectively addressed. Simultaneously, metal strips are embedded within the substrate layer. Utilizing the high tensile strength and low coefficient of thermal expansion of the metal material, these strips actively counteract internal stresses caused by temperature and humidity changes, enhancing overall bending stiffness and dimensional stability. This significantly reduces warping, expansion, and contraction issues in the flooring, improving its durability and performance.

[0015] 2. Excellent moisture-proof and wear-resistant effects are achieved by setting up a polyethylene moisture-proof layer and a wear-resistant layer. The moisture-proof layer is located at the bottom of the substrate layer, effectively blocking moisture intrusion and preventing the substrate from deforming due to moisture; the outer surface of the wear-resistant layer is covered with aluminum oxide, with a wear resistance of not less than 6000 revolutions, ensuring that the floor surface is wear-resistant and scratch-resistant, extending the service life of the floor, while maintaining its aesthetics and functionality. Attached Figure Description

[0016] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a plan view of the present invention; Figure 2 This is a perspective view of the present invention; Figure 3 This is a detailed drawing of the anti-deformation layer of this utility model.

[0017] Reference numerals: 1. Substrate layer; 2. Deformation-resistant layer; 21. First hardwood layer; 22. Second hardwood layer; 3. Wear-resistant layer; 4. Moisture-proof layer; 5. Metal strip; 6. Pressure relief groove. Detailed Implementation

[0018] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0019] The following is combined Figures 1-2 This utility model will be described in detail.

[0020] A type of deformation-resistant composite wood flooring, characterized in that it comprises: Substrate layer 1; Anti-deformation layer 2 is disposed on top of substrate layer 1 and is bonded to substrate layer 1. Wear-resistant layer 3 is disposed on top of anti-deformation layer 2, and wear-resistant layer 3 is bonded to anti-deformation layer 2. Anti-deformation layer 2 is located between substrate layer 1 and wear-resistant layer 3. Moisture-proof layer 4 is located at the bottom of substrate layer 1 and is bonded to substrate layer 1.

[0021] Preferably, the deformation-resistant layer 2 comprises: The first hardwood layer 21 is glued to the substrate layer 1. The second hardwood layer 22 is thermally fused to the first hardwood layer 21, and the second hardwood layer 22 is also glued to the wear-resistant layer 3. The grain directions of the first hardwood layer 21 and the second hardwood layer 22 intersect.

[0022] By interlacing the first hardwood layer 21 and the second hardwood layer 22 with their grain directions perpendicular to each other, a stable, deformation-resistant core structure is formed. This design fully utilizes the anisotropic nature of wood, allowing the layers to restrain each other in both longitudinal and transverse directions, effectively counteracting internal stresses in different directions caused by changes in temperature and humidity, thereby significantly suppressing overall shrinkage, expansion, or warping. Simultaneously, the high density and mechanical strength of hardwood itself, along with its rigid structure, further enhances the board's resistance to bending and shearing, fundamentally improving the flooring's dimensional stability and durability.

[0023] Preferably, the outer surface of the wear-resistant layer 3 is covered with aluminum oxide, and the wear resistance of the wear-resistant layer 3 is not less than 6000 revolutions.

[0024] Preferably, the moisture barrier 4 is made of polyethylene.

[0025] Preferably, the interior of the substrate layer 1 is provided with a metal strip 5, which is fixedly connected to the substrate layer 1. The length extension direction of the metal strip 5 is parallel to the length extension direction of the anti-deformation composite wood flooring, and the length of the metal strip 5 is the same as the length of the substrate layer 1.

[0026] The core function of the embedded metal strip 5 is to actively counteract the internal stress of the composite material caused by temperature and humidity changes by utilizing the high tensile strength and low coefficient of thermal expansion of the metal material. As a reinforcing skeleton, the metal strip 5 can effectively constrain the expansion and contraction deformation of the substrate and improve the bending stiffness and dimensional stability of the overall structure through mechanical anchoring, thereby significantly reducing deformation problems such as warping and expansion.

[0027] Preferably, the bottom of the anti-deformation composite wood flooring is provided with a stress relief groove 6, the depth of which is 50%-60% of the thickness of the anti-deformation composite wood flooring.

[0028] The bottom has a stress relief groove 6 with a depth of 50%-60% of the board height, which can effectively release the internal stress caused by temperature and humidity changes, improve the moisture balance efficiency, and significantly suppress the warping and deformation of the floor by achieving the optimal balance between maintaining sufficient structural strength and providing stress relief flexibility.

[0029] The embodiments described above merely illustrate specific implementation methods of this application, and while the descriptions are detailed and specific, they should not be construed as limiting the scope of protection of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the technical solution of this application, and these modifications and improvements all fall within the scope of protection of this application.

Claims

1. A type of anti-deformation composite wood flooring, characterized in that, include: Substrate layer; An anti-deformation layer is disposed on top of the substrate layer and is bonded to the substrate layer; A wear-resistant layer is disposed on top of the deformation-resistant layer, and the wear-resistant layer is bonded to the deformation-resistant layer. The deformation-resistant layer is located between the substrate layer and the wear-resistant layer. A moisture-proof layer is disposed at the bottom of the substrate layer and is bonded to the substrate layer; The deformation-resistant layer includes a first hardwood layer and a second hardwood layer. The first hardwood layer is glued to the substrate layer, the second hardwood layer is heat-fused to the first hardwood layer, and the second hardwood layer is also glued to the wear-resistant layer. The grain directions of the first hardwood layer and the second hardwood layer intersect.

2. The anti-deformation composite wood flooring according to claim 1, characterized in that, The outer surface of the wear-resistant layer is covered with aluminum oxide, and the wear resistance of the wear-resistant layer is not less than 6000 revolutions.

3. The anti-deformation composite wood flooring according to claim 1, characterized in that, The moisture-proof layer is made of polyethylene.

4. The anti-deformation composite wood flooring according to claim 1, characterized in that, The substrate layer has a metal strip inside, which is fixedly connected to the substrate layer. The length extension direction of the metal strip is parallel to the length extension direction of the anti-deformation composite wood flooring, and the length of the metal strip is the same as the length of the substrate layer.

5. The anti-deformation composite wood flooring according to claim 1, characterized in that, The bottom of the anti-deformation composite wood flooring is provided with a stress relief groove, the depth of which is 50%-60% of the thickness of the anti-deformation composite wood flooring.

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