A green and eco-friendly composite wood flooring

Abstract

This utility model discloses a green and eco-friendly composite wood flooring, comprising a core layer, a surface layer above the core layer, a bottom layer below the core layer, an environmentally friendly reinforced composite layer between the core layer and the bottom layer and laminated together using an environmentally friendly adhesive, and a composite self-locking noise-reducing connection structure located at the edge of the core layer. The composite self-locking noise-reducing connection structure includes an elastic barbed tongue and groove, a corresponding groove, and an embedded flexible shock-absorbing and noise-reducing strip within the main locking groove. This utility model, through the introduction of the environmentally friendly reinforced composite layer and innovative connection structure design, solves the problems of loose joints, noise transmission, insufficient environmental performance, and poor flatness retention after installation in existing composite flooring, providing a high-performance and environmentally friendly floor decoration material.

Description

Technical Field

[0001] This utility model relates to the field of flooring technology, specifically to a green and eco-friendly composite wood flooring. Background Technology

[0002] Composite wood flooring, as an important floor decoration material, has been widely used in the field of building decoration due to its advantages such as moderate cost, convenient installation, and simple maintenance.

[0003] Currently, most composite flooring on the market employs a multi-layered design, typically including a top layer, a core layer, and a bottom layer. Traditional composite flooring often uses adhesives to bond the layers together, while the horizontal connections between floorboard units generally utilize a tongue-and-groove locking system. Another common technique involves using tongue and groove joints along the edges of the floorboards, mechanically locking the floorboard units together.

[0004] The most relevant prior art to this invention is composite flooring with a single locking structure. This type of flooring connects floor units by using interlocking tenons and grooves along the edges of the floorboards, utilizing the mechanical fit of the tenons and grooves. Its technical principle relies on the friction and mechanical constraint generated by the interference fit between the tenons and grooves to maintain the relative stability of the floor unit positions.

[0005] However, this existing technology has significant technical drawbacks. First, the single-locking structure is prone to loosening over long-term use due to the expansion and contraction of wood caused by temperature changes and humidity fluctuations, resulting in gaps at the floor joints, affecting aesthetics and lifespan. Second, traditional composite flooring is prone to friction and noise transmission at the joints when people walk on it or objects are impacted, affecting living comfort. Furthermore, existing composite flooring relies heavily on virgin wood materials, and its environmental performance needs improvement. Utility Model Content

[0006] In view of this, this application provides a green and eco-friendly composite wood flooring that solves the problems of loose joints, serious noise transmission, and insufficient environmental performance in the prior art.

[0007] This application provides a green and eco-friendly composite wood flooring, comprising:

[0008] Core layer;

[0009] Surface layer, the surface layer being disposed above the core layer;

[0010] The bottom layer is disposed below the core layer;

[0011] An environmentally friendly reinforced composite layer is disposed between the core layer and the bottom layer, and the environmentally friendly reinforced composite layer is laminated and bonded to the bottom of the core layer and the top of the bottom layer by an environmentally friendly adhesive.

[0012] The composite self-locking noise reduction connection structure is located at the lower end of the environmentally friendly reinforced composite layer and includes an elastic barbed auxiliary tongue and groove, a slot that cooperates with the elastic barbed auxiliary tongue and groove, and an embedded flexible shock absorption and noise reduction strip located in the main locking slot.

[0013] Optionally, the environmentally friendly reinforced composite layer is made by high-temperature and high-pressure bonding of recycled plant fibers and environmentally friendly thermoplastic resin. The recycled plant fibers include at least one of waste wood powder, bamboo powder or straw powder, and the environmentally friendly thermoplastic resin includes at least one of polylactic acid or recycled polyolefin.

[0014] Optionally, a balancing layer is also included, which is disposed between the surface layer and the core layer, and is connected to the bottom of the surface layer and the top of the core layer respectively by an adhesive.

[0015] Optionally, the elastic barbed auxiliary tongue and groove has a hook-shaped structure, and the shape of the slot matches the elastic barbed auxiliary tongue and groove. The elastic barbed auxiliary tongue and groove cooperate to form a double-engaging self-locking mechanism, providing vertical locking force and horizontal connection stability.

[0016] Optionally, the embedded flexible shock-absorbing and noise-reducing strip is made of flexible polymer material. The embedded flexible shock-absorbing and noise-reducing strip fills the internal space of the slot of the main latch to provide a buffering effect and reduce noise transmission when adjacent floor units are connected.

[0017] Optionally, the surface layer, the core layer, the environmentally friendly reinforced composite layer, and the bottom layer are all laminated and bonded together using environmentally friendly adhesives to form an integrated laminated structure. The environmentally friendly adhesives are low-formaldehyde-releasing or formaldehyde-free adhesives.

[0018] Optionally, the bottom layer includes a tenon structure disposed at the edge of the floor unit, the composite self-locking noise reduction connection structure disposed at the groove structure at the edge of the floor unit, the tenon structure being inserted into the groove structure to achieve a lateral connection, the elastic barbed auxiliary tongue and groove being disposed on the tenon structure, the slot being disposed within the groove structure, and the embedded flexible shock absorption and noise reduction strip being disposed inside the groove structure.

[0019] Optionally, the thickness of the environmentally friendly reinforced composite layer is 1-5 mm. The environmentally friendly reinforced composite layer has moisture-proof performance and impact absorption capacity. The composite self-locking noise reduction connection structure can prevent the floor unit from warping and gaps during long-term use. The embedded flexible shock-absorbing and noise-reducing strip can eliminate joint friction noise.

[0020] This application has the following technical effects:

[0021] By adding an environmentally friendly reinforced composite layer between the core and bottom layers, the utilization rate of waste resources is significantly improved, the dependence on virgin wood is reduced, and the dimensional stability, moisture resistance, and impact absorption capacity of the flooring are effectively enhanced. The composite self-locking noise-reducing connection structure, through a double-interlocking mechanism, significantly enhances the vertical locking force and horizontal connection stability between flooring units, effectively preventing warping and gaps that may occur during long-term use. The embedded flexible shock-absorbing and noise-reducing strips, through the cushioning effect of flexible polymer materials, significantly reduce the transmission of noise generated during walking or impacts, eliminate joint friction noise, and improve the acoustic performance and foot comfort of the flooring. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. These drawings are incorporated in and constitute a part of this specification. They illustrate embodiments conforming to this disclosure and, together with the specification, serve to explain the technical solutions of this disclosure. It should be understood that the following drawings only show some embodiments of this disclosure and should not be considered as limiting the scope. Those skilled in the art can obtain other related drawings based on these drawings without creative effort.

[0023] Figure 1 This is an overall structural diagram of the green and eco-friendly composite wood flooring of Embodiment 1 of this utility model;

[0024] Figure 2 This is an overall structural diagram of the green and eco-friendly composite wood flooring of Embodiment 2 of this utility model;

[0025] Figure 3 This is an enlarged detail view of the composite self-locking noise reduction connection structure of this utility model.

[0026] Explanation of reference numerals in the attached diagram: 1-Core layer; 2-Balancing layer; 3-Surface layer; 4-Environmentally friendly reinforced composite layer; 5-Composite self-locking noise reduction connection structure; 5a-Elastic barbed auxiliary tongue and groove; 5b-Slot; 5c-Embedded flexible shock absorption and noise reduction strip; 6-Bottom layer. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. The components of the embodiments of this disclosure described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In this document, the term "and / or" merely describes a relationship, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0031] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] This utility model provides a green and eco-friendly composite wood flooring. Through its unique layered composite structure and innovative connection structure design, this flooring solves the technical problems existing in the prior art, such as easy loosening of joints, noise transmission, insufficient environmental performance, and poor flatness retention after installation.

[0033] like Figures 1 to 3 As shown, the green ecological composite wood flooring of this utility model includes a core layer 1, a surface layer 3, a bottom layer 6, an environmentally friendly reinforced composite layer 4, and a composite self-locking noise reduction connection structure 5.

[0034] Core layer 1 serves as the main structural layer of the flooring, providing basic strength and stability. Top layer 3, situated above core layer 1, acts as the decorative surface layer and is in direct contact with the environment. Bottom layer 6, located below core layer 1, serves as the base layer, contacting the ground and providing support.

[0035] One of the core innovations of this utility model is the inclusion of the environmentally friendly reinforced composite layer 4. Located between the core layer 1 and the bottom layer 6, the environmentally friendly reinforced composite layer 4 is securely laminated to the bottom of the core layer 1 and the top of the bottom layer 6 using an environmentally friendly adhesive. Specifically, the environmentally friendly reinforced composite layer 4 is made by high-temperature and high-pressure lamination of recycled plant fibers and environmentally friendly thermoplastic resin. The recycled plant fibers can be one or more of waste wood powder, bamboo powder, or straw powder, all derived from agricultural and forestry waste, thus achieving resource recycling. The environmentally friendly thermoplastic resin can be degradable or recyclable materials such as polylactic acid (PLA) or recycled polyolefins. Through the high-temperature and high-pressure lamination process, the plant fibers and resin are fully fused, forming a dense composite material layer. The thickness of the environmentally friendly reinforced composite layer 4 is preferably 1-5 mm, providing sufficient strength and functionality without excessively increasing the overall thickness of the flooring.

[0036] In some embodiments, such as Figure 1 and Figure 2 As shown, the flooring may also include a balancing layer 2. The balancing layer 2 is disposed between the surface layer 3 and the core layer 1, and is connected to the bottom of the surface layer 3 and the top of the core layer 1 respectively by adhesive. The balancing layer 2 further balances the internal stress of the flooring, preventing warping and deformation during use.

[0037] Then, another core innovation of this utility model is the design of the composite self-locking noise reduction connection structure 5. It should be specifically noted that the composite self-locking noise reduction connection structure 5 is located at the lower end of the environmentally friendly reinforced composite layer 4, specifically at the edge of the floor unit, and is used to achieve lateral connection between adjacent floor units. For example... Figure 3 As shown, the connection structure comprises three main components: an elastic barbed tongue and groove 5a, a slot 5b, and an embedded flexible shock-absorbing and noise-reducing strip 5c.

[0038] Specifically, part of the bottom layer 6 forms a tenon structure at the edge of the floor unit, while the composite self-locking noise-reducing connection structure 5 is partially set in the groove structure at the edge of the adjacent floor unit. During floor installation, the tenon structure of one floor unit inserts into the groove structure of the adjacent floor unit, achieving a lateral connection. A flexible, hook-shaped auxiliary tongue and groove 5a is partially set on the tenon structure, forming a hook shape with a certain degree of elastic deformation capability. A slot 5b is set within the groove structure, its shape matching the flexible, hook-shaped auxiliary tongue and groove 5a. When the tenon structure is inserted into the groove structure, the flexible, hook-shaped auxiliary tongue and groove 5a can elastically deform and engage with the slot 5b, forming a reliable mechanical lock. This double-interlocking self-locking mechanism provides additional locking force on top of the main tongue and groove lock, not only enhancing the vertical locking force to prevent the floor from separating vertically, but also providing horizontal connection stability to prevent lateral slippage of the floor.

[0039] Furthermore, the embedded flexible vibration damping and noise reduction strip 5c is located within the internal space of the slot structure, specifically within the slot of the main latch. This noise reduction strip is made of flexible polymer materials, such as thermoplastic elastomer (TPE), polyurethane foam, or other materials with good elasticity and sound absorption properties. When the tenon structure is inserted into the slot structure and locked, the embedded flexible vibration damping and noise reduction strip 5c is compressed in the connection gap. On the one hand, it provides a buffering effect, absorbing the vibration energy generated by walking or impacts; on the other hand, it fills the connection gap, preventing direct contact and friction between rigid materials, thereby significantly reducing noise transmission and eliminating joint friction noise.

[0040] from Figure 1 and Figure 2 The comparison shows that the composite self-locking noise reduction connection structure 5 can have different implementation methods. Figure 1 In Embodiment 1 shown, a more complex connection system is employed, with a more precise fit between the tenon and groove structures. Figure 2 In Embodiment 2 shown, a relatively simplified connection system is used, but the basic configuration of the elastic barbed tongue-and-groove joint 5a, the slot 5b, and the embedded flexible shock-absorbing and noise-reducing strip 5c is still maintained. Regardless of the implementation method, the composite self-locking noise-reducing connection structure 5 is located at the lower end of the environmentally friendly reinforced composite layer 4 to ensure the stability and reliability of the connection.

[0041] Finally, regarding the overall connection of the flooring, the surface layer 3, core layer 1, environmentally friendly reinforced composite layer 4, and bottom layer 6 are all laminated and bonded together using environmentally friendly adhesives, forming an integrated laminated structure. The environmentally friendly adhesives used are low-formaldehyde-release or formaldehyde-free adhesives, such as water-based polyurethane adhesives, hot melt adhesives, or other environmentally friendly adhesives, ensuring the overall environmental performance of the flooring.

[0042] It should be noted that the environmentally friendly reinforced composite layer 4 not only embodies the concept of environmental protection in its material selection, but its placement is also carefully designed. Located between the core layer 1 and the bottom layer 6, the environmentally friendly reinforced composite layer 4 effectively enhances the overall strength and stability of the flooring. Furthermore, its excellent moisture resistance and impact absorption capabilities protect the core layer 1 from ground moisture, extending the flooring's lifespan. Simultaneously, because the composite self-locking noise-reducing connection structure 5 is located at the lower end of the environmentally friendly reinforced composite layer 4, the connection structure and the environmentally friendly reinforced composite layer 4 work synergistically, further improving the overall performance of the flooring.

[0043] In summary, this utility model, through the introduction of the environmentally friendly reinforced composite layer 4 and its unique placement design, not only improves the utilization rate of waste resources and embodies the concept of a green circular economy, but also effectively enhances the dimensional stability, moisture resistance, and impact absorption capacity of the flooring. Simultaneously, the composite self-locking noise-reducing connection structure 5, located at the lower end of the environmentally friendly reinforced composite layer 4, utilizes the cooperation of tenon and groove structures, along with the double-interlocking self-locking mechanism of the elastic bar-shaped auxiliary tongue and groove 5a and the slot 5b, combined with the buffering and noise-reducing effect of the embedded flexible shock-absorbing and noise-reducing strip 5c. This ensures the overall stability and durability of the flooring after installation while optimizing the user's acoustic experience and foot comfort. This utility model provides the market with a high-performance and environmentally friendly floor decoration material.

[0044] Finally, it should be noted that 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 do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A green ecological composite wood floor, characterized in that, The application relates to a floor unit, which comprises a core layer, a surface layer arranged above the core layer, a bottom layer arranged below the core layer, an environment-friendly reinforced composite layer arranged between the core layer and the bottom layer, and a composite self-locking noise-reducing connecting structure arranged at the lower end of the environment-friendly reinforced composite layer. The environment-friendly reinforced composite layer is made of recycled plant fibers and environment-friendly thermoplastic resin through high-temperature and high-pressure compounding, wherein the recycled plant fibers comprise at least one of waste wood powder, bamboo powder or straw powder, and the environment-friendly thermoplastic resin comprises at least one of polylactic acid or recycled polyolefin. The application further comprises a balancing layer arranged between the surface layer and the core layer, which is connected to the bottom of the surface layer and the top of the core layer through adhesives. The elastic hook-shaped auxiliary groove is in a hook structure, the shape of the clamping groove is matched with that of the elastic hook-shaped auxiliary groove, the elastic hook-shaped auxiliary groove and the clamping groove form a double-meshing self-locking mechanism, and vertical locking force and horizontal connection stability are provided. The embedded flexible shock-absorbing and noise-reducing belt is made of flexible polymer material and is filled in the internal space of the slot of the main lock, so as to provide a buffering effect and reduce noise transmission when adjacent floor units are connected. The surface layer, the core layer, the environment-friendly reinforced composite layer and the bottom layer are connected through environment-friendly adhesives to form an integrated layer composite structure, and the environment-friendly adhesives are low-formaldehyde-releasing or formaldehyde-free adhesives.

2. The green ecological composite wood floor according to claim 1, characterized in that, The bottom layer comprises a tenon structure arranged at the edge of the floor unit, the composite self-locking noise-reducing connecting structure is partially arranged in a slot structure at the edge of the floor unit, the tenon structure is inserted into the slot structure to realize horizontal connection, the elastic hook-shaped auxiliary groove is arranged on the tenon structure, the clamping groove is arranged in the slot structure, and the embedded flexible shock-absorbing and noise-reducing belt is arranged in the slot structure.

3. The green ecological composite wood floor according to claim 1 or 2, characterized in that, The thickness of the environment-friendly reinforced composite layer is 1-5 mm, the environment-friendly reinforced composite layer has moisture-proof performance and impact absorption capacity, the composite self-locking noise-reducing connecting structure can prevent the floor unit from warping and cracking in long-term use, and the embedded flexible shock-absorbing and noise-reducing belt can eliminate joint friction noise.

4. The green ecological composite wood floor according to claim 1, characterized in that, ​ 5. The green ecological composite wood floor according to claim 1, characterized in that, ​ 6. The green ecological composite wood floor according to claim 1, characterized in that, ​ 7. The green ecological composite wood floor according to any one of claims 1-6, characterized in that, ​ 8. The green ecological composite wood floor according to claim 1, characterized in that, ​

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