A three-layer solid wood floor with a bottom plate

Abstract

The utility model discloses a kind of three-layer solid wood floor with bottom plate in the middle, belong to bottom plate technical field, including including: from top to bottom sequentially arranged surface layer, middle layer and base layer;Surface layer is made of rare timber;Middle layer is fast-growing timber rotary cut board;Base layer includes the main body of the splicing of several horizontal boards and the edge strip component arranged at the both sides of main body;Horizontal board and edge strip are all made of fast-growing timber.The utility model shifts the fast-growing timber rotary cut board bottom layer in the base layer bottom to between surface layer and base layer, in the case where not changing three-layer solid wood floor cost and use performance, increase the buffer between surface layer and base layer, can reduce the influence of base layer to surface layer, more degree avoid solid wood floor to appear row bone grain.

Description

Technical Field

[0001] This utility model relates to the field of flooring technology, specifically to a three-layer solid wood floor with a baseboard. Background Technology

[0002] Three-layer solid wood flooring consists of a top layer made of expensive wood, a middle layer made of fast-growing wood, and a bottom layer made of fast-growing wood. It possesses the properties of expensive wood while reducing the amount of expensive wood used, resulting in a lower cost compared to solid wood flooring made entirely of expensive wood, thus making it widely popular in the market. However, existing three-layer solid wood flooring often develops ribbed patterns (stripes) on the top layer due to shrinkage of the middle layer structure, significantly affecting its aesthetics and practicality. Therefore, this invention provides a three-layer solid wood flooring with a bottom layer in the middle. Utility Model Content

[0003] The purpose of this utility model is to provide a three-layer solid wood floor with a base plate in the middle.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: A type of solid wood flooring with a three-layer core, comprising: a top layer, a middle layer, and a base layer arranged sequentially from top to bottom; The surface layer is made of rare wood; The middle layer is a fast-growing rotary-cut wood board; The base layer comprises a main body composed of several horizontal boards spliced ​​together and edge banding strips set on both sides of the main body; both the horizontal boards and the edge banding strips are made of fast-growing wood.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme, the rare wood is oak or walnut.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme, the fast-growing timber is birch.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme, at least one side of the middle layer is provided with a composite buffer layer, which is made of hardwood chips.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme, the hardwood chips are oak chips.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme, the top of the side of the horizontal plate facing the adjacent horizontal plate is recessed to form an installation half groove, and two adjacent installation half grooves are combined to form an installation groove, and a hardwood inlay strip is fitted inside the installation groove.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects: This utility model transfers the bottom layer of the fast-growing wood rotary-cut board located at the bottom of the base layer to between the surface layer and the base layer. Without changing the cost and performance of the three-layer solid wood flooring, it increases the buffer between the surface layer and the base layer, which can reduce the impact of the base layer on the surface layer and avoid the appearance of rib patterns in the solid wood flooring to a greater extent. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of one layer in an embodiment of the present invention.

[0012] Figure 2 This is a top view of the base layer of Embodiment 1 of this utility model.

[0013] Figure 3 This is a schematic diagram of the second-layer structure of an embodiment of the present invention.

[0014] Figure 4 This is a schematic diagram of the horizontal plate and hardwood inlay structure in Embodiment 2 of this utility model.

[0015] In the diagram: 1. Top layer; 2. Middle layer; 3. Base layer; 31. Horizontal board; 32. Edge banding strip; 4. Composite buffer layer; 5. Hardwood inlay strip. Detailed Implementation

[0016] 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.

[0017] Example 1: like Figure 1 As shown, a three-layer solid wood flooring with a core includes: a surface layer 1, a middle layer 2, and a base layer 3 arranged sequentially from top to bottom, wherein: The surface layer 1 is made of rare wood and serves as the top layer of the three-layer solid wood flooring, showcasing its appearance and texture. The thickness of surface layer 1 is less than one-fifth of the total thickness of the three-layer solid wood flooring to reduce costs while maintaining the physical properties of the rare wood. Preferably, the rare wood is oak or walnut.

[0018] The middle layer 2 is a fast-growing rotary-cut wood board, located between the surface layer 1 and the base layer 3. It acts as a buffer, reducing the impact of the base layer 3 on the surface layer 1, thereby reducing the probability of rib patterns appearing on the surface layer 1.

[0019] like Figure 2 As shown, the base layer 3 comprises a main body composed of several horizontal boards 31 spliced ​​together and edge banding strips 32 set on both sides of the main body. Both the horizontal boards 31 and the edge banding strips 32 are made of fast-growing wood. The base layer 3 is the main layer of the three-layer solid wood flooring, and its thickness is greater than that of the surface layer 1 and the middle layer 2. It is made of fast-growing wood, which has a relatively low cost. The base layer 3 is relatively thick. During production, the fast-growing wood is cut into boards of a set thickness, and then the boards are spliced ​​together to form the base layer 3. Due to the expansion and contraction between the spliced ​​wood, the surface layer 1 may be affected, causing the surface layer 1 to have a ribbed pattern. In this embodiment, a middle layer 2 is set between the surface layer 1 and the middle layer 2, which can reduce the probability of the surface layer 1 having a ribbed pattern.

[0020] Among them, the rare woods mentioned above are oak or walnut, and the fast-growing woods mentioned above are birch.

[0021] Example 2: like Figure 3 As shown, this embodiment, based on Embodiment 1, includes a composite buffer layer 4 on at least one side of the middle layer 2. The composite buffer layer 4 is made of hardwood chips. The composite buffer layer 4, made of hardwood chips, allows the shrinkage rate of the middle layer 2 to be close to that of the surface layer 1, reducing stress transmission and further lowering the probability of grain patterns. The processing method of the composite buffer layer 4 includes: spreading hardwood chips produced during processing onto the surface of a fast-growing rotary-cut wood board, and then pressing it at high temperature. The raw material cost of the composite buffer layer 4 is relatively low, which can increase the buffering effect of the middle layer 2.

[0022] Preferably, the hardwood chips are oak chips.

[0023] At the same time, such as Figure 4 As shown, the top of the side of the horizontal plate 31 facing the adjacent horizontal plate 31 is recessed to form an installation half-groove. Two adjacent installation half-grooves combine to form an installation groove, in which a hardwood inlay strip 5 fits. The hardwood inlay strip 5 is embedded at the joint, utilizing the low shrinkage rate of hardwood to "lock" the joint of the base layer 3, reducing the deformation of the base layer 3 itself, thereby reducing the probability of ribbed wood grain appearing in the three-layer solid wood flooring. Preferably, the hardwood inlay strip 5 is made of rare wood.

[0024] In this embodiment, the cross-section of the mounting groove is dovetail-shaped, with a smaller top and a larger bottom. The interlocking of the concave and convex parts enhances the connection strength between the hardwood inlay strip 5 and the base layer 3, preventing the hardwood inlay strip 5 from being easily pulled out or squeezed off.

[0025] In addition, the horizontal plate 31 is provided with insertion protrusions at both ends, and the edge banding strip 32 is provided with insertion grooves that are compatible with the insertion protrusions. Through the cooperation of the insertion protrusions and the insertion grooves, the horizontal plate 31 and the edge banding strip 32 can be connected, limiting the relative lateral movement of the horizontal plate 31 and the edge banding strip 32, thereby fixing the hardwood inlay strip 5; the dovetail-shaped hardwood inlay strip 5 can restrict the relative longitudinal movement of the horizontal plate 31, thereby fixing the base layer 3.

[0026] This embodiment can further reduce the probability of ribbed patterns appearing in solid wood flooring by adding a low-cost composite buffer layer 4 and hardwood inlay strips 5.

[0027] 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 type of three-layer solid wood flooring with a core, characterized in that, include: The top layer (1), middle layer (2) and base layer (3) are arranged from top to bottom. The surface layer (1) is made of rare wood; The middle layer (2) is a quick-growing wood rotary-cut board; The base layer (3) consists of a main body made up of several horizontal boards (31) spliced ​​together and edge banding strips (32) set on both sides of the main body; both the horizontal boards (31) and the edge banding strips (32) are made of fast-growing wood.

2. The three-layer solid wood flooring with a core as described in claim 1, characterized in that, The rare wood is oak or walnut.

3. The three-layer solid wood flooring with a core as described in claim 1, characterized in that, The fast-growing timber is birch.

4. The three-layer solid wood flooring with a core as described in claim 1, characterized in that, At least one side of the middle layer (2) is provided with a composite buffer layer (4), which is made of hardwood chips.

5. A three-layer solid wood flooring with a core as described in claim 4, characterized in that, The hardwood chips are oak chips.

6. A three-layer solid wood flooring with a core as described in claim 1, characterized in that, The top of the side of the horizontal plate (31) facing the adjacent horizontal plate (31) is recessed to form an installation half groove. Two adjacent installation half grooves are combined to form an installation groove, and a hardwood inlay strip (5) is fitted inside the installation groove.

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