A solid wood composite panel for a ground heating environment
By dividing the core of the solid wood composite board into upper and lower parts and combining it with groove, convex strip and micro-pore design, the problems of difficult warping control and insufficient sound insulation performance in the underfloor heating environment are solved, and the safety and sound insulation effect of the board are achieved in high temperature environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU MEIKANGSANSHAN WOOD IND CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-26
Smart Images
Figure CN224407917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite panels, and more specifically, to a solid wood composite panel for use in underfloor heating environments. Background Technology
[0002] In high-temperature environments with underfloor heating, the quality requirements for wooden flooring and wall panels are quite stringent. CN213626409U discloses a wear-resistant and moisture-proof impregnated paper solid wood composite board. Although it improves the composite board's resistance to deformation, moisture, mildew, and wear, and avoids problems such as cracking, mold, shrinkage, and expansion and arching, it has the following drawbacks: (1) To solve the problems of warping during hot pressing and cost, a wear-resistant layer, a decorative paper layer, and a wear-resistant impregnated titanium dioxide paper layer are set on the upper surface of the core board, and an impregnated titanium dioxide base paper layer and an impregnated balancing paper layer are set on the lower surface. To achieve different shrinkage coefficients on the upper and lower surfaces, the core board is designed with warping in both the length and width directions. In actual production, since parameters such as hot pressing temperature and pressure are difficult to keep constant, the pre-selected warping of the core board is not suitable for actual production, thus affecting the quality of the final solid wood composite board. (2) When solid wood composite boards are used in underfloor heating residential environments, there are safety hazards. (3) Sound insulation performance needs to be improved. Utility Model Content
[0003] To address the aforementioned problems, this utility model provides a solid wood composite board for underfloor heating environments, which aims to improve at least one of the problems mentioned in the background art.
[0004] A solid wood composite board for underfloor heating environments includes, from top to bottom, a layer of alumina wear-resistant particles, a layer of impregnated patterned paper, a layer of wear-resistant impregnated titanium dioxide paper, a layer of impregnated titanium dioxide base paper, and a layer of impregnated balance paper. The solid wood composite board for underfloor heating environments also includes an upper core board and a lower core board. The upper core board is connected to the wear-resistant impregnated titanium dioxide paper layer, and the lower core board is connected to the impregnated titanium dioxide base paper layer. The upper core board has at least three grooves, and the lower core board has the same number of protrusions as the grooves. Each protrusion is inserted into a groove.
[0005] Optionally, the upper core board includes at least two layers of plywood with alternating vertical and horizontal layers and a layer of balancing veneer, and the lower core board includes at least two layers of plywood with alternating vertical and horizontal layers and a layer of balancing veneer.
[0006] Optionally, the upper core board is hot-pressed together with the alumina wear-resistant particle layer, the impregnated patterned paper layer, and the wear-resistant impregnated titanium dioxide paper layer. One side of the balancing wood veneer of the upper core board is bonded to the plywood, and the other side is bonded to the lower surface of the wear-resistant impregnated titanium dioxide paper layer. The lower core board is hot-pressed together with the impregnated titanium dioxide base paper layer and the impregnated balancing paper layer. One side of the balancing wood veneer of the lower core board is bonded to the plywood, and the other side is bonded to the upper surface of the impregnated titanium dioxide base paper layer.
[0007] Optionally, the upper core board is cold-pressed together with the alumina wear-resistant particle layer, the impregnated patterned paper layer, and the wear-resistant impregnated titanium dioxide paper layer, and the lower core board is cold-pressed together with the impregnated titanium dioxide base paper layer and the impregnated balance paper layer.
[0008] Optionally, a plurality of first microholes are uniformly formed on the upper core plate, and a second microhole is uniformly formed on the lower core plate. The first and second microholes are impregnated with thermosetting flame retardant adhesive.
[0009] Optionally, the diameter of the first micropore and the second micropore is 0.05-0.1 mm, the distance between two adjacent first micropores is 10-15 mm, and the distance between two adjacent second micropores is 10-15 mm.
[0010] Optionally, the first micropore and the second micropore are arranged in a staggered manner.
[0011] Optionally, the length of each protrusion extending from the upper surface of the lower core plate is greater than the depth of the groove, and there is a certain gap between the lower core plate and the upper core plate.
[0012] Optionally, the thickness of each of the alumina wear-resistant particle layer, the impregnated patterned paper layer, and the wear-resistant impregnated titanium dioxide paper layer is 0.2 mm, the thickness of the upper core board is 6 mm, and the thickness of the lower core board is 6 mm.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention not only divides the core board into an upper core board and a lower core board in the existing technology, but also heat-presses the upper core board with the alumina wear-resistant particle layer, the impregnated patterned paper layer, and the wear-resistant impregnated titanium dioxide paper layer, and heat-presses the lower core board with the impregnated titanium dioxide base paper layer and the impregnated balance paper layer, and uses the cooperation of grooves and convex strips, because the upper or lower core board is only half the original thickness and is heat-pressed separately, and then mechanically connected into one piece after heat pressing, the thermal shrinkage of the upper and lower core boards is dispersed. Moreover, even if thermal shrinkage still exists, because the connection method is mechanical connection, it does not affect the integrity of the connected product. Therefore, there is no need to specially set the warpage of the upper and lower core boards in the process.
[0015] This invention also improves the flame retardant properties of solid wood composite boards through the first and second micropores, as well as the sound insulation properties of solid wood composite boards. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of a solid wood composite board structure for underfloor heating environments provided by this utility model;
[0018] Figure 2 This is a schematic diagram of the lower surface structure of the upper core board of this utility model;
[0019] Figure 3 This is a schematic diagram of the upper surface structure of the lower core plate of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Alumina wear-resistant particle layer; 2. Impregnated patterned paper layer; 3. Wear-resistant impregnated titanium dioxide paper layer; 4. Upper core board; 5. Lower core board; 6. Impregnated titanium dioxide base paper layer; 7. Impregnated balance paper layer; 8. Groove; 9. Raised strip; 10. First micropore; 11. Second micropore. Detailed Implementation
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise precisely specified.
[0023] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0026] Example 1
[0027] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a solid wood composite board structure for underfloor heating environments provided by this utility model.
[0028] A solid wood composite board for underfloor heating environments includes, from top to bottom, an aluminum oxide wear-resistant particle layer 1, a resin-impregnated patterned paper layer 2, a wear-resistant impregnated titanium dioxide paper layer 3, an upper core board 4, a lower core board 5, an impregnated titanium dioxide base paper layer 6, and an impregnated balance paper layer 7. The upper core board 4 has at least three grooves 8, and the lower core board 5 has the same number of protrusions 9 as the grooves 8 connected to it, with each protrusion 9 inserted into a groove 8.
[0029] The upper core board 4 includes at least two layers of plywood with alternating vertical and horizontal layers and a layer of balancing veneer, and the lower core board 5 includes at least two layers of plywood with alternating vertical and horizontal layers and a layer of balancing veneer.
[0030] In this embodiment, during the manufacturing of the solid wood composite board for underfloor heating environments, the upper core board 4 is hot-pressed together with the alumina wear-resistant particle layer 1, the impregnated patterned paper layer 2, and the wear-resistant impregnated titanium dioxide paper layer 3. One side of the balancing veneer of the upper core board 4 is bonded to the plywood, and the other side is bonded to the lower surface of the wear-resistant impregnated titanium dioxide paper layer 3. The lower core board 5 is hot-pressed together with the impregnated titanium dioxide base paper layer 6 and the impregnated balancing paper layer 7. One side of the balancing veneer of the lower core board 5 is bonded to the plywood, and the other side is bonded to the upper surface of the impregnated titanium dioxide base paper layer 6. After hot pressing, a groove 8 is formed on the lower surface of the upper core board 4, and a protrusion 9 is connected to the upper surface of the lower core board 5.
[0031] In this embodiment, the thickness of the alumina wear-resistant particle layer 1, the impregnated patterned paper layer 2, and the wear-resistant impregnated titanium dioxide paper layer 3 is 0.2 mm, the thickness of the upper core board 4 is 6 mm, and the thickness of the lower core board 5 is 6 mm.
[0032] This embodiment divides the core board in the prior art into an upper core board 4 and a lower core board 5. The upper core board 4 is hot-pressed together with the alumina wear-resistant particle layer 1, the impregnated patterned paper layer 2, and the wear-resistant impregnated titanium dioxide paper layer 3. The lower core board 5 is hot-pressed together with the impregnated titanium dioxide base paper layer 6 and the impregnated balance paper layer 7. The groove 8 and the protrusion 9 cooperate to disperse the thermal shrinkage of the upper core board 4 and the lower core board 5 by means of the cooperation of the groove 8 and the protrusion 9. Since the upper core board 4 or the lower core board 5 is only half the original thickness and is hot-pressed separately, it is mechanically connected together after hot pressing. Moreover, even if thermal shrinkage still exists, the integrity of the product after connection is not affected because the connection method is mechanical. Therefore, it is not necessary to set the warpage of the upper core board 4 and the lower core board 5 within a specific range in the process.
[0033] In one or more specific embodiments of this utility model, in order to ensure a firm connection, corresponding grooves can be formed on the surface of the lower core plate 5 after hot pressing, and the protrusions 9 can be embedded in the corresponding grooves. Preferably, the corresponding grooves and grooves 8 can be filled with a material that strengthens the connection, such as glue or concrete.
[0034] Example 2
[0035] Compared to Example 1, the difference lies in the following: instead of hot-pressing the upper core board 4 with the alumina wear-resistant particle layer 1, the impregnated patterned paper layer 2, and the wear-resistant impregnated titanium dioxide paper layer 3, and hot-pressing the lower core board 5 with the impregnated titanium dioxide base paper layer 6 and the impregnated balance paper layer 7, the method is changed to cold-pressing the upper core board 4 with the alumina wear-resistant particle layer 1, the impregnated patterned paper layer 2, and the wear-resistant impregnated titanium dioxide paper layer 3, and cold-pressing the lower core board 5 with the impregnated titanium dioxide base paper layer 6 and the impregnated balance paper layer 7. Before cold pressing, polyurethane flame-retardant adhesive is applied to the side of each layer that is to be bonded to the other layer.
[0036] This embodiment, on the one hand, further avoids the problem of core board shrinkage coefficient through cold pressing, and on the other hand, improves the flame retardant performance of solid wood composite board by adding polyurethane flame retardant adhesive to the solid wood composite board system.
[0037] Those skilled in the art should understand that cold pressing is an existing process in the furniture manufacturing industry, and those skilled in the art can perform this process as needed.
[0038] Example 3
[0039] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the lower surface structure of the upper core board of this utility model. Figure 3 This is a schematic diagram of the upper surface structure of the lower core plate of this utility model.
[0040] Compared with Example 2, the difference is that after cold pressing, in addition to opening a groove 8 on the lower surface of the upper core plate 4 and connecting a protrusion 9 on the upper surface of the lower core plate 5, a number of first microholes 10 are uniformly opened on the upper core plate 4 and a number of second microholes 11 are uniformly opened on the lower core plate 5. The first microholes 10 and the second microholes 11 are all impregnated with flame-retardant adhesive.
[0041] The diameters of the first micropore 10 and the second micropore 11 are 0.05 to 0.1 mm, and the distance between two adjacent micropores is 10 to 15 mm.
[0042] This embodiment further improves the flame retardant performance of solid wood composite boards by creating a first micropore 10 and a second micropore 11 and impregnating each micropore with flame retardant adhesive.
[0043] The flame-retardant adhesive is a thermosetting flame-retardant adhesive.
[0044] Example 4
[0045] Compared with Example 3, the first micropore 10 and the second micropore 11 are arranged in a staggered manner.
[0046] By staggering the arrangement of the first micropore 10 and the second micropore 11, the complexity of the sound wave propagation path is increased when the sound wave passes through, thereby improving the sound insulation of the solid wood composite board.
[0047] Example 5
[0048] Compared to Example 4, the length of each protrusion 9 extending beyond the upper surface of the lower core board 5 is greater than the depth of the groove 8, thus creating a certain gap between the lower core board 5 and the upper core board 4. In this case, when sound waves pass through, they can be reflected and scattered multiple times between the two layers, consuming sound energy and further increasing the complexity of the sound wave propagation path, thereby improving the sound insulation of the solid wood composite board.
[0049] 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 the 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A solid wood composite panel for a floor heating environment, comprising, from top to bottom, an aluminum oxide wear-resistant particle layer (1), a glue-impregnated patterned paper layer (2), a wear-resistant impregnated titanium white paper layer (3), an impregnated titanium white base paper layer (6), and an impregnated balancing paper layer (7), characterized in that, The solid wood composite board for underfloor heating environment also includes an upper core board (4) and a lower core board (5). The upper core board (4) is connected to the wear-resistant impregnated titanium dioxide paper layer (3), and the lower core board (5) is connected to the impregnated titanium dioxide base paper layer (6). At least three grooves (8) are provided on the upper core board (4), and the same number of protrusions (9) as the grooves (8) are connected on the lower core board (5). Each protrusion (9) is inserted into a groove (8).
2. The solid wood composite board for underfloor heating environments according to claim 1, characterized in that, The upper core board (4) includes at least two layers of plywood with alternating vertical and horizontal layers and a layer of balancing veneer, and the lower core board (5) includes at least two layers of plywood with alternating vertical and horizontal layers and a layer of balancing veneer.
3. The solid wood composite board for underfloor heating environments according to claim 2, characterized in that, The upper core board (4) is hot-pressed together with the alumina wear-resistant particle layer (1), the glue-impregnated patterned paper layer (2), and the wear-resistant impregnated titanium dioxide paper layer (3). One side of the balance veneer of the upper core board (4) is bonded to the plywood, and the other side is bonded to the lower surface of the wear-resistant impregnated titanium dioxide paper layer (3). The lower core board (5) is hot-pressed together with the impregnated titanium dioxide base paper layer (6) and the impregnated balance paper layer (7). One side of the balance veneer of the lower core board (5) is bonded to the plywood, and the other side is bonded to the upper surface of the impregnated titanium dioxide base paper layer (6).
4. The solid wood composite board for underfloor heating environments according to claim 2, characterized in that, The upper core board (4) is cold-pressed together with the alumina wear-resistant particle layer (1), the impregnated patterned paper layer (2), and the wear-resistant impregnated titanium dioxide paper layer (3), and the lower core board (5) is cold-pressed together with the impregnated titanium dioxide base paper layer (6) and the impregnated balance paper layer (7).
5. The solid wood composite board for underfloor heating environments according to claim 4, characterized in that, The upper core plate (4) is provided with a plurality of first micro holes (10) evenly distributed, and the lower core plate (5) is provided with a plurality of second micro holes (11) evenly distributed. The first micro holes (10) and the second micro holes (11) are both impregnated with thermosetting flame retardant adhesive.
6. The solid wood composite board for underfloor heating environments according to claim 5, characterized in that, The diameters of the first micropore (10) and the second micropore (11) are both 0.05 to 0.1 mm. The distance between two adjacent first micropores (10) is 10 to 15 mm, and the distance between two adjacent second micropores (11) is 10 to 15 mm.
7. The solid wood composite board for underfloor heating environments according to claim 5, characterized in that, The first micropore (10) and the second micropore (11) are arranged in a staggered manner.
8. The solid wood composite board for underfloor heating environments according to claim 5, characterized in that, The length of each protrusion (9) extending out of the upper surface of the lower core plate (5) is greater than the depth of the groove (8), and there is a certain gap between the lower core plate (5) and the upper core plate (4).
9. The solid wood composite board for underfloor heating environments according to any one of claims 1-8, characterized in that, The alumina wear-resistant particle layer (1), the impregnated patterned paper layer (2), and the wear-resistant impregnated titanium dioxide paper layer (3) each have a thickness of 0.2 mm, the upper core board (4) has a thickness of 6 mm, and the lower core board (5) has a thickness of 6 mm.