Moisture-proof and mildew-proof multi-layer composite floor

Abstract

The utility model discloses a kind of damp-proof mildew-proof multilayer composite floor, belong to floor technical field, comprising: from top to bottom sequentially arranged upper layer, middle layer and lower layer;Upper layer and lower layer structure are same, all include the body of rectangle and the tongue and mortise of the two opposite side edges of body setting, tongue top has a recess and a convex part;Tongue mortise has a recess and a convex part with recess compatible slot, and a recess and a convex part with convex part compatible slot.The utility model includes upper layer, middle layer and lower layer, upper layer is WPC wood-plastic floor layer, middle layer is high-density fiberboard layer, lower layer is SPC stone plastic floor layer, all are material layer with good damp-proof, mildew-proof performance, so that floor has basic damp-proof, mildew-proof ability;Upper and lower layer edge has tongue and mortise, not only can be used for the splicing of adjacent floor, and by tongue mortise concave-convex cooperation, make splicing seam be sinuous arrangement, compared with traditional vertical splicing seam, can prevent liquid downward spread, further improve the damp-proof ability of floor.

Description

Technical Field

[0001] This utility model relates to the field of flooring technology, specifically to a moisture-proof and mildew-proof multi-layer composite flooring. Background Technology

[0002] Multi-layer composite flooring, combining the aesthetic appeal of solid wood flooring with the stability of engineered wood flooring, is widely used in home decoration and commercial spaces. However, daily life inevitably involves water stains and high humidity levels. If liquid seeps into the flooring through the seams, it can easily cause the core material to become damp, leading to mold growth. This not only affects the flooring's appearance, causing discoloration and bulging, but also reduces its structural stability, shortens its lifespan, and may even breed bacteria, negatively impacting the health of the living environment. Current technology typically seals the seams of multi-layer composite flooring with wax. By applying wax to the seams, the sealing properties of the wax material can prevent liquid from seeping into the flooring, thus providing some moisture and mold prevention. However, this single sealing method has significant limitations. As the flooring ages, the wax and other sealing materials at the seams are prone to aging, wear, and even peeling off due to daily foot traffic, friction, and changes in ambient temperature and humidity. Once the sealing wax loses its sealing effect, liquid will seep back into the wood flooring through the seams, failing to fundamentally solve the problem of mold growth caused by moisture and thus failing to meet people's long-term needs for moisture-proof and mold-proof multi-layer composite flooring. Therefore, this utility model provides a moisture-proof and mold-proof multi-layer composite flooring. Utility Model Content

[0003] The purpose of this invention is to provide a moisture-proof and mildew-proof multi-layer composite flooring.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A moisture-proof and mildew-proof multi-layer composite flooring, comprising: an upper layer, a middle layer, and a lower layer arranged sequentially from top to bottom; The upper layer is a WPC wood-plastic flooring layer, and its top surface is provided with a decorative layer and a wear-resistant layer, with the wear-resistant layer located above the decorative layer; The middle layer is a high-density fiberboard layer; The lower layer is an SPC stone plastic flooring layer, and a moisture-proof layer is provided on its bottom surface; The upper and lower layers have the same structure, both including a rectangular body and a tenon and a mortise with two opposite sides of the body. The tenon extends outward from the edge of the body, with its top lower than the top surface of the body and its bottom flush with the bottom surface of the body. The top of the tenon has a concave portion and a convex portion, with the concave portion located between the convex portion and the body. The mortise is formed by a concave portion on the bottom surface of the body, having a groove protrusion that matches the concave portion and a groove concave portion that matches the convex portion. The two opposite sides of the middle layer are flush with the outer end of the tenon and the inner end of the mortise, respectively.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme, the recess is arc-shaped.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme, the protrusion is arc-shaped.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme, the decorative layer is a PVC decorative film layer.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme, the wear-resistant layer is a transparent aluminum oxide coating.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme, the moisture-proof layer is an HDPE film layer.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme, a plurality of insert teeth are provided on one side of the main body, and grooves adapted to the insert teeth are provided on the top and bottom surfaces of the middle layer.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects: This utility model includes an upper layer, a middle layer and a lower layer. The upper layer is a WPC wood-plastic flooring layer, the middle layer is a high-density fiberboard layer, and the lower layer is an SPC stone-plastic flooring layer. All of these are material layers with good moisture-proof and mildew-proof properties, giving the flooring basic moisture-proof and mildew-proof capabilities. The edges of the upper and lower layers have tongues and grooves, which can not only be used for splicing adjacent floorboards, but also, through the interlocking of the tongues and grooves, make the splicing seam meander. Compared with the traditional vertical splicing seam, this can prevent liquid from spreading downwards, further improving the flooring's moisture-proof capability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the three-layer structure of this utility model.

[0014] Figure 3 for Figure 2 Explosion diagram.

[0015] Figure 4 for Figure 3 Enlarged view of a portion of the diagram.

[0016] Figure 5 This is a schematic diagram of the four floorboards of this utility model being spliced ​​together.

[0017] In the diagram: 1. Upper layer; 2. Middle layer; 3. Lower layer; 4. Decorative layer; 5. Wear-resistant layer; 6. Moisture-proof layer; 7. Tenon; 71. Recess; 72. Protrusion; 8. Mortise and tenon; 81. Groove protrusion; 82. Groove recess; 9. Insert tooth; 10. Insert groove. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0019] like Figures 1 to 3 As shown, a moisture-proof and mildew-proof multi-layer composite flooring includes: an upper layer 1, a middle layer 2, and a lower layer 3 arranged sequentially from top to bottom.

[0020] The upper layer 1 is the WPC wood-plastic composite flooring layer, with a decorative layer 4 for decoration and a wear-resistant layer 5 on top of it, the wear-resistant layer 5 located above the decorative layer 4. The WPC wood-plastic composite flooring layer is made of PVC resin and wood powder as the base material, foamed at high temperature, providing excellent moisture and mildew resistance. Although the base material contains wood powder, after high-temperature and high-pressure treatment, the wood powder is encapsulated by PVC resin, making it difficult for moisture to contact. The foamed structure also reduces the probability of overall deformation. The wood powder undergoes special treatment (degreasing and drying), and the PVC resin isolates moisture, making it difficult for mold to obtain nutrients and a humid environment, resulting in superior mildew resistance compared to traditional wood flooring. At the same time, WPC wood-plastic composite flooring has a relatively soft feel underfoot, closer to solid wood flooring.

[0021] Decorative layer 4 is a PVC decorative film layer, which is made by printing ink on the surface of a PVC substrate.

[0022] The wear-resistant layer 5 is a transparent aluminum oxide coating, which is made by uniformly dispersing aluminum oxide particles in a transparent carrier resin (polyurethane PU, acrylic resin) and then coating it on the surface of the decorative layer 4. The hardness of aluminum oxide protects the soft resin and decorative layer underneath, which can greatly improve the wear resistance of the floor.

[0023] The second middle layer is a high-density fiberboard (HDF) layer, which is impregnated with a moisture-proofing agent to improve its moisture resistance.

[0024] The lower layer 3 is an SPC stone plastic flooring layer, with a moisture-proof layer 6 on its bottom surface. The SPC stone plastic flooring layer uses polyvinyl chloride resin as the base material, mixed with stone powder and extruded at high temperature, giving it excellent moisture-proof and mildew-proof capabilities. The moisture-proof layer 6 is an HDPE film layer, which can further improve the flooring's moisture-proof performance.

[0025] like Figure 3 and Figure 4 As shown, the upper layer 1 and the lower layer 3 have the same structure, both including a rectangular body and tenons 7 and mortises 8 with two opposite sides of the body.

[0026] The tenon 7 extends outward from the edge of the body, with its top lower than the top surface of the body and its bottom flush with the bottom surface of the body. The bottom surface of the body is the surface that fits against the middle layer 2.

[0027] Furthermore, the top of the tenon 7 has a recess 71 and a protrusion 72, with the recess 71 located between the protrusion 72 and the body. Preferably, both the recess 71 and the protrusion 72 are arc-shaped, and there is a smooth transition between them.

[0028] The tongue and groove 8 are formed by a concave shape on the bottom surface of the body, and have a groove protrusion 81 that matches the concave part 71 and a groove recess 82 that matches the protrusion part 72. When adjacent floorboards are spliced, the tongue 7 and the tongue and groove 8 are joined together. Due to the presence of the concave and convex parts, the splice seam is curved. Compared with the traditional straight type, liquid is more difficult to pass through, which can effectively prevent liquid from spreading downward from the splice seam into the interior of the floor, further improving the moisture resistance of the floor.

[0029] Optionally, when adjacent floorboards are joined, sealant can be applied to the joint to further improve sealing and waterproofing.

[0030] The two opposite sides of the middle layer 2 are flush with the outer end of the tongue 7 and the inner end of the mortise 8, respectively, so as to combine with the tongue 7 and the mortise 8 to form a total tongue and mortise at the edge of the floor.

[0031] To improve the connection stability between the upper, middle, and lower layers, several teeth 9 are provided on the bottom surface of both the upper and lower layers, and grooves 10 that match the teeth 9 are provided on the top and bottom surfaces of the middle layer 2. Preferably, the teeth 9 have a cross-section that is larger at the top and smaller at the bottom to provide vertical anti-detachment capability.

[0032] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A moisture-proof and mildew-proof multi-layer composite flooring, characterized in that, include: The upper layer (1), middle layer (2) and lower layer (3) are arranged from top to bottom. The upper layer (1) is a WPC wood-plastic flooring layer, and a decorative layer (4) and a wear-resistant layer (5) are provided on its top surface. The wear-resistant layer (5) is located above the decorative layer (4). The middle layer (2) is a high-density fiberboard layer; The lower layer (3) is an SPC stone plastic floor layer, and a moisture-proof layer (6) is provided on its bottom surface. The upper layer (1) and the lower layer (3) have the same structure, both including a rectangular body and a tenon (7) and a mortise (8) with two opposite sides of the body. The tenon (7) extends outward from the edge of the body, with its top lower than the top surface of the body and its bottom flush with the bottom surface of the body. The top of the tenon (7) has a recess (71) and a protrusion (72), with the recess (71) located between the protrusion (72) and the body. The mortise (8) is formed by a concave shape on the bottom surface of the body, and has a groove protrusion (81) that matches the recess (71) and a groove recess (82) that matches the protrusion (72). The two opposite sides of the middle layer (2) are flush with the outer end of the tenon (7) and the inner end of the mortise (8), respectively.

2. The moisture-proof and mildew-proof multi-layer composite flooring according to claim 1, characterized in that, The recess (71) is arc-shaped.

3. The moisture-proof and mildew-proof multi-layer composite flooring according to claim 1, characterized in that, The protrusion (72) is arc-shaped.

4. The moisture-proof and mildew-proof multi-layer composite flooring according to claim 1, characterized in that, The decorative layer (4) is a PVC decorative film layer.

5. The moisture-proof and mildew-proof multi-layer composite flooring according to claim 1, characterized in that, The wear-resistant layer (5) is a transparent alumina coating.

6. The moisture-proof and mildew-proof multi-layer composite flooring according to claim 1, characterized in that, The moisture-proof layer (6) is an HDPE film layer.

7. The moisture-proof and mildew-proof multi-layer composite flooring according to claim 1, characterized in that, The main body has several teeth (9) on one side, and the top and bottom surfaces of the middle layer (2) are provided with grooves (10) that are adapted to the teeth (9).

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