Wear-resistant solid wood floor

Abstract

The utility model discloses a kind of wear-resistant solid wood floor, including wear-resistant surface layer, solid wood substrate layer and balance bottom layer connected in turn from top to bottom;Wear-resistant surface layer is tightly attached to the upper surface of solid wood substrate layer by hot-pressing process, and wear-resistant surface layer is made of aluminium trioxide composite coating;Solid wood substrate layer is processed by whole solid wood board, and the side edge is provided with splicing connection structure;Balance bottom layer is made of high-density fiberboard, and balance bottom layer is fixed by bonding with the lower surface of solid wood substrate layer through environment-friendly adhesive, and the edge of balance bottom layer is flush with the edge of solid wood substrate layer;The application has the advantages of reinforcing wear-resistant core, considering stability and practicality.

Description

Technical Field

[0001] This utility model belongs to the field of solid wood flooring technology, and in particular relates to a wear-resistant solid wood flooring. Background Technology

[0002] Solid wood flooring, with its natural grain, comfortable feel, and environmental friendliness, has become a commonly used flooring material in interior decoration. However, traditional solid wood flooring has significant drawbacks that limit its application range and lifespan: Insufficient wear resistance: Traditional solid wood flooring relies solely on a clear varnish coating for protection. The varnish has a low hardness (usually below 2H), making it prone to scratches and wear under high-frequency walking, furniture movement, or friction from heavy objects. This is especially noticeable in commercial spaces or homes with children or pets, where surface damage is more pronounced. Typically, the floor needs to be sanded and revarnished after 3-5 years of use, resulting in high maintenance costs. Poor structural stability: Solid wood substrates are prone to shrinkage, expansion or warping due to environmental temperature and humidity, resulting in gaps, arching or cracking at the joints of the flooring; although some flooring has a balancing layer, the bonding strength between the balancing layer and the substrate is insufficient, and it is easy to delaminate after long-term use, further aggravating structural deformation. Low reliability of splicing: Traditional mortise and tenon splicing structures are mostly rigid fits, which require hammering to position during installation, easily leading to damage to the tenons; after splicing, there is no elastic buffer structure, and the splice is prone to loosening when the temperature and humidity change, producing abnormal noise, and dust can easily enter the gaps, making it difficult to clean. Lack of auxiliary functions: Existing solid wood flooring generally lacks comprehensive functions such as sound insulation, anti-slip and moisture resistance. It is easy to make footstep noise when walking, the base material is prone to moisture and mold in humid environments, and the bottom is easy to slip on the ground, posing a safety hazard. To address these issues, some "wear-resistant solid wood flooring" has emerged on the market. However, most of these products achieve their wear resistance simply by increasing the thickness of the surface coating, without optimizing wear resistance from a structural design perspective. Furthermore, they neglect the synergistic improvement of substrate stability, splicing reliability, and auxiliary functions, resulting in poor overall product performance that fails to meet the demands of long-term, high-frequency use. Therefore, developing a wear-resistant solid wood flooring based on a multi-layered composite structure, with a reinforced wear-resistant core, and balancing stability and practicality, has become an urgent problem for the industry. Utility Model Content

[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a wear-resistant solid wood flooring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wear-resistant solid wood flooring, comprising a wear-resistant surface layer, a solid wood substrate layer, and a balancing bottom layer connected sequentially from top to bottom; the wear-resistant surface layer is tightly attached to the upper surface of the solid wood substrate layer by a hot-pressing process, and the wear-resistant surface layer is made of an aluminum oxide composite coating; the solid wood substrate layer is processed from a single piece of solid wood board, and its side edges are provided with splicing connection structures; the balancing bottom layer is made of high-density fiberboard, and the balancing bottom layer is bonded and fixed to the lower surface of the solid wood substrate layer by an environmentally friendly adhesive, and the edge of the balancing bottom layer is flush with the edge of the solid wood substrate layer.

[0006] Furthermore, the wear-resistant surface layer is uniformly mixed with silicon carbide particles, and the upper surface of the wear-resistant surface layer is also provided with a nano-level anti-fouling coating, which is made of fluorocarbon resin material.

[0007] Furthermore, the solid wood substrate layer is made of one of oak, walnut or teak; the interior of the solid wood substrate layer has several moisture-proof grooves along its length, the cross-section of the moisture-proof grooves is U-shaped, and the moisture-proof grooves are filled with a composite moisture-proof agent.

[0008] Furthermore, the splicing connection structure includes a tenon on one edge of the solid wood substrate layer and a mortise on the other edge, with the tenon and mortise fitting together; an elastic strip is provided on the upper surface of the tenon, with the cross-section of the elastic strip being semi-circular; an arc-shaped groove is provided on the lower surface of the mortise, which fits the elastic strip, and when two adjacent floorboards are spliced, the elastic strip is embedded in the arc-shaped groove.

[0009] Furthermore, the end of the tenon is provided with an inclined guide surface, the opening of the mortise is provided with an arc-shaped transition edge, and the surfaces of both the tenon and the mortise are coated with a wear-resistant lubricating coating.

[0010] Furthermore, the lower surface of the balancing base layer is provided with several anti-slip ridges distributed along the length direction. The anti-slip ridges and the balancing base layer are an integral structure, and the cross-section of the anti-slip ridges is trapezoidal.

[0011] Furthermore, a sound-absorbing buffer layer is provided between the solid wood substrate layer and the balance bottom layer. The sound-absorbing buffer layer is made of polyurethane foam material. The upper and lower surfaces of the sound-absorbing buffer layer are both provided with wavy patterns. The sound-absorbing buffer layer is bonded and fixed to the solid wood substrate layer and the balance bottom layer respectively by water-based adhesive.

[0012] Furthermore, the side edge of the solid wood substrate layer is also provided with a wear-resistant edge strip. The wear-resistant edge strip is made of stainless steel sheet and is fixed to the side edge of the solid wood substrate layer by laser welding process. The outer surface of the wear-resistant edge strip is flush with the outer surface of the solid wood substrate layer.

[0013] Furthermore, a penetrating adhesive layer is provided between the wear-resistant surface layer and the solid wood substrate layer. The penetrating adhesive layer is made of modified epoxy resin material.

[0014] The advantages of this utility model are: it provides a wear-resistant solid wood flooring based on a multi-layer composite structure, a reinforced wear-resistant core, and a balance between stability and practicality. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram: Figure 1 This is a structural schematic diagram of a wear-resistant solid wood flooring according to the present invention.

[0018] The meanings of the reference numerals in the figure are as follows: 1. Wear-resistant surface layer; 2. Solid wood substrate layer; 3. Sound-absorbing buffer layer; 4. Balance bottom layer; 5. Fluorocarbon resin anti-fouling coating; 6. Modified epoxy resin penetrating bonding layer; 7. Moisture-proof groove; 8. Tenon; 9. Mortise and tenon; 10. Trapezoidal anti-slip ridge. Detailed Implementation

[0019] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0020] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0021] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0022] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0023] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0024] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 As shown, a wear-resistant solid wood flooring consists of, from top to bottom, a wear-resistant surface layer 1, a solid wood substrate layer 2, a sound-absorbing buffer layer 3, and a balancing bottom layer 4.

[0026] The wear-resistant surface layer 1 uses an aluminum oxide composite coating. Aluminum oxide has a hardness of up to 9H (Mohs hardness), which is 5-8 times that of traditional varnishes. It can effectively resist scratches from sharp objects and friction from heavy objects. At the same time, it is mixed with silicon carbide particles (particle size 5-15μm). The high wear resistance of silicon carbide further enhances the wear resistance of the surface layer. When its mass ratio is 8-15%, the wear resistance coefficient (revolutions) can reach AC5 level (≥6000 revolutions), which meets the needs of high-frequency commercial use.

[0027] A fluorocarbon resin anti-fouling coating 5 (thickness 0.01-0.03mm) is added to the upper surface of the wear-resistant surface layer 1. The fluorocarbon resin has ultra-low surface tension, which can prevent oil and water stains from penetrating. Cleaning only requires wiping with a damp cloth. A modified epoxy resin penetrating adhesive layer 6 (thickness 0.05-0.1mm) is set between the surface layer and the substrate layer. This adhesive layer can penetrate into the texture gaps of the solid wood substrate surface to form a double fixing structure of "mechanical interlocking + chemical bonding", which prevents the surface layer from falling off. The bonding strength after hot pressing is ≥1.5MPa.

[0028] The solid wood substrate layer 2 is made of high-density hardwoods such as oak, walnut, or teak (air-dry density ≥ 0.75 g / cm³). 3 The substrate is 12-18mm thick to ensure the overall rigidity of the floor. The upper surface of the substrate is treated with high-precision sanding (roughness Ra≤0.8μm) to ensure the adhesion with the wear-resistant surface layer 1. U-shaped moisture-proof grooves 7 are opened along the length direction inside (depth 1 / 3-1 / 2 of the substrate thickness, spacing 8-12cm). The grooves are filled with composite moisture-proof agents (calcium chloride for moisture absorption, montmorillonite for moisture regulation, and activated carbon for antibacterial properties), which can effectively absorb the moisture inside the substrate and prevent deformation caused by temperature and humidity changes. The moisture content of the substrate can be stably controlled at 8-12%.

[0029] The solid wood substrate is fitted with a stainless steel wear-resistant edging strip (0.1-0.2mm thick) on the side edge, which is fixed by laser welding to prevent the edge of the floor from chipping or wearing out due to collision and friction; the ends of the edging strip are rounded (radius 0.3-0.5mm) to prevent hand injuries during installation and to improve the aesthetics.

[0030] The sound-absorbing buffer layer 3 is made of polyurethane foam material (1-2mm thick). Polyurethane has good elasticity and damping properties, which can absorb the impact force when walking and reduce footstep noise (noise reduction ≥15dB). The upper and lower surfaces are set with wavy texture (wave height 0.2-0.3mm, wave spacing 1-1.5mm), which increases the contact area with the substrate layer and the balance layer and improves the bonding strength. On the other hand, it forms micro air cavities to further enhance the sound insulation effect.

[0031] The bottom layer 4 is made of high-density fiberboard (HDF, density ≥ 0.8 g / cm³). 3 HDF (3-5mm thick) has stable moisture content and minimal deformation, which can balance the stress of the substrate layer and prevent floor warping; the internal composite glass fiber mesh layer (80-120 mesh) utilizes the high strength and tensile strength of glass fiber to further suppress the deformation of the bottom layer and improve the overall structural stability.

[0032] The bottom surface of the balanced base layer 4 is equipped with trapezoidal anti-slip raised strips 10 (height 0.8-1.2mm, spacing 15-20mm), which form multi-point support when in contact with the ground, increasing friction (static friction coefficient ≥0.6) and preventing the floor from shifting due to people walking or cleaning after installation. It is especially suitable for damp areas such as bathroom entrances and kitchens.

[0033] The solid wood substrate is equipped with a splicing connection structure, which includes a tenon 8 on one side of the solid wood substrate and a mortise 9 on the other side. The gap between the tenon 8 and the mortise 9 is controlled at 0.05-0.1mm, which ensures a tight splice while allowing for a small amount of deformation space. The end of the tenon 8 is provided with a 30-45° inclined guide surface, and the opening of the mortise 9 is provided with an arc transition edge (radius 0.5-1mm). During installation, no hammering is required; it can be positioned simply by pushing it in along the guide surface, thus avoiding damage to the tenon 8.

[0034] The upper surface of the tenon 8 is provided with a semi-circular EPDM rubber elastic strip (0.3-0.5mm high), and the lower surface of the tenon 9 is provided with a matching arc-shaped groove. When splicing, the rubber strip is embedded in the groove and compressed to form an elastic seal: on the one hand, it compensates for the expansion and contraction of the substrate caused by temperature and humidity changes, preventing gaps at the splice; on the other hand, it eliminates abnormal noises caused by rigid collisions, while blocking dust from entering and improving cleaning convenience.

[0035] The surfaces of tenons 8 and mortises 9 are coated with a polytetrafluoroethylene wear-resistant and lubricating coating, which reduces frictional resistance during splicing and improves wear resistance after long-term use, avoiding damage to the splicing structure caused by repeated disassembly and assembly (such as during maintenance).

[0036] Compared with the prior art, the beneficial effects of this utility model are as follows: Significantly improved wear resistance: Through the dual-layer wear-resistant design of aluminum oxide composite coating + silicon carbide particles, the surface wear resistance coefficient can reach AC5 level, extending the service life to 10-15 years (traditional solid wood flooring only 5-8 years), reducing maintenance costs; the addition of stain-resistant coating makes cleaning more convenient and avoids surface damage caused by stain penetration. The structural stability is greatly enhanced: the moisture-proof groove 7 of the solid wood substrate layer 2 works together with the composite moisture-proof agent to control the moisture content, and balance the glass fiber mesh layer of the bottom layer 4 to inhibit deformation. The overall structure does not have obvious warping or cracking in environments with temperatures ranging from -10℃ to 40℃ and relative humidity of 30-80%, adapting to the climatic conditions of different regions. The design balances reliability and convenience in splicing: the elastic rubber strip and guide structure not only prevent damage to the tenon during installation, but also compensate for the expansion and contraction of the substrate, preventing loosening and abnormal noise at the splice; the wear-resistant lubricating coating enhances the durability of repeated disassembly and assembly, and facilitates later maintenance. Multifunctional synergistic optimization: Silent buffer layer 3 reduces walking noise and improves living comfort; anti-slip ridges enhance ground friction and ensure safety; stainless steel edging strips protect the edges and prevent collision damage, achieving a comprehensive function of "wear resistance + stability + quietness + anti-slip + durability". Balancing environmental friendliness and cost-effectiveness: Environmentally friendly water-based adhesives are used for bonding all layers, with formaldehyde emissions ≤0.02mg / m³. 3 (far below the national standard E1 grade ≤0.124mg / m³) 3 The overall structural design reduces the amount of solid wood used (saving 30% of the base material compared to traditional solid wood flooring), lowers production costs, and improves resource utilization.

[0037] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A wear-resistant solid wood flooring, characterized in that: The system comprises, from top to bottom, a wear-resistant surface layer, a solid wood substrate layer, and a balancing bottom layer. The wear-resistant surface layer is tightly attached to the upper surface of the solid wood substrate layer through a hot-pressing process, and is made of an aluminum oxide composite coating. The solid wood substrate layer is processed from a single piece of solid wood board, and its side edges are provided with splicing connection structures. The balancing bottom layer is made of high-density fiberboard, and is bonded and fixed to the lower surface of the solid wood substrate layer with environmentally friendly adhesive, and the edge of the balancing bottom layer is flush with the edge of the solid wood substrate layer.

2. The wear-resistant solid wood flooring according to claim 1, characterized in that: The upper surface of the wear-resistant layer is also provided with a nano-level anti-fouling coating, which is made of fluorocarbon resin material.

3. The wear-resistant solid wood flooring according to claim 1, characterized in that: The solid wood substrate layer is made of one of oak, walnut or teak; the interior of the solid wood substrate layer has several moisture-proof grooves along its length, the moisture-proof grooves have a U-shaped cross-section and are filled with a composite moisture-proof agent.

4. The wear-resistant solid wood flooring according to claim 1, characterized in that: The splicing connection structure includes a tenon on one edge of the solid wood substrate layer and a mortise on the other edge, with the tenon and mortise fitting together; the upper surface of the tenon is provided with an elastic strip, the cross-section of which is semi-circular; the lower surface of the mortise is provided with an arc-shaped groove that fits the elastic strip, and when two adjacent floorboards are spliced ​​together, the elastic strip is embedded in the arc-shaped groove.

5. The wear-resistant solid wood flooring according to claim 4, characterized in that: The tenon has an inclined guide surface at its end, and the mortise has an arc-shaped transition edge at its opening. Both the tenon and the mortise are coated with a wear-resistant and lubricating coating.

6. The wear-resistant solid wood flooring according to claim 1, characterized in that: The lower surface of the balancing base layer is provided with several anti-slip ridges distributed along the length direction. The anti-slip ridges and the balancing base layer are an integral structure, and the cross-section of the anti-slip ridges is trapezoidal.

7. The wear-resistant solid wood flooring according to claim 1, characterized in that: A sound-absorbing buffer layer is provided between the solid wood substrate layer and the balance bottom layer. The sound-absorbing buffer layer is made of polyurethane foam material. The upper and lower surfaces of the sound-absorbing buffer layer are provided with wavy patterns. The sound-absorbing buffer layer is bonded and fixed to the solid wood substrate layer and the balance bottom layer respectively by water-based adhesive.

8. The wear-resistant solid wood flooring according to claim 1, characterized in that: The side edge of the solid wood substrate layer is also provided with a wear-resistant edge strip. The wear-resistant edge strip is made of stainless steel sheet and is fixed to the side edge of the solid wood substrate layer by laser welding process. The outer surface of the wear-resistant edge strip is flush with the outer surface of the solid wood substrate layer.

9. The wear-resistant solid wood flooring according to claim 1, characterized in that: A penetrating adhesive layer is also provided between the wear-resistant surface layer and the solid wood substrate layer. The penetrating adhesive layer is made of modified epoxy resin material.

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