Bamboo-wood composite plywood

Abstract

The utility model relates to the technical field of plywood, and discloses a bamboo-wood composite plywood which comprises a plywood body, the plywood body comprises a first wood board layer, a first bamboo board layer, a core board, a second bamboo board layer and a second wood board layer, the two sides of the core board are respectively connected with the first bamboo board layer and the second bamboo board layer in an adhering mode through adhesive, and the first bamboo board layer is connected with the second bamboo board layer in an adhering mode. The outer side wall of the first bamboo batten layer and the outer side wall of the second bamboo batten layer are connected with a first wood board layer and a second outer layer formwork in an adhering mode respectively. According to the bamboo-wood composite plywood, the longitudinally-arranged bamboo batten layers are used for enhancing the bearing performance and the tensile resistance in the length direction, the reinforcing ribs are used for improving the overall structural strength and stability, the service life is prolonged, the expansion type fireproof layer can expand and insulate heat when encountering fire to guarantee safety, the outer self-cleaning layer reduces the cleaning cost, the structure is simple, and the practicability is high. The problem that the performance of the bamboo-wood composite plywood is improved by complementing various materials in the traditional plywood is solved.

Description

Technical Field

[0001] This utility model relates to the field of plywood technology, specifically to a bamboo-wood composite plywood. Background Technology

[0002] Bamboo-wood composite plywood is a multi-layered board made by combining bamboo and wood through a specific process. It typically uses bamboo as the main raw material, such as bamboo strips or bamboo mats, combined with wood veneers or other wood-based materials, bonded together in specific layers and directions using adhesives under high temperature and pressure. This type of board combines the high strength and toughness of bamboo with some of the excellent properties of wood, such as good processing performance and a comfortable texture. It is widely used in construction, furniture manufacturing, and decoration, and can be used to make wall panels, flooring, furniture components, packaging boxes, and other products, meeting the needs of various applications.

[0003] Existing bamboo-wood composite plywood typically consists of multiple bamboo and wood panels glued together with adhesives. While this method of using complementary materials can improve the performance of bamboo-wood composite plywood, it is not the optimal choice and does not significantly enhance its performance. Furthermore, this approach not only fails to significantly improve performance but also increases the demand for raw materials during processing due to over-reliance on different panel combinations, leading to resource waste. Its application is limited in places with strict hygiene and environmental control requirements. Therefore, we propose a new type of bamboo-wood composite plywood. Utility Model Content

[0004] The main objective of this invention is to provide a bamboo-wood composite plywood that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bamboo-wood composite plywood, comprising a plywood body, the plywood body comprising a first wood board layer, a first bamboo strip layer, a core board, a second bamboo strip layer, and a second wood board layer, the first bamboo strip layer and the second bamboo strip layer being respectively adhered and connected to both sides of the core board by adhesive, the first wood board layer and the second wood board layer being respectively adhered and connected to the outer walls of the first bamboo strip layer and the second bamboo strip layer, the first wood board layer and the first bamboo strip layer having matching first and second engaging grooves respectively on their facing surfaces, and the first engaging grooves and the second engaging grooves being matched, the inner cavities of the first engaging grooves and the second engaging grooves being fixedly adhered and connected to first reinforcing ribs, the facing surfaces of the second wood board layer and the second bamboo strip layer having matching third and fourth engaging grooves, and the third engaging grooves and the fourth engaging grooves being matched, the inner cavities of the third engaging grooves and the fourth engaging grooves being fixedly adhered and connected to second reinforcing ribs.

[0006] Preferably, the outer walls of both the first and second wood panels are coated with a fireproof layer, and the outer walls of the fireproof layer are coated with a self-cleaning layer.

[0007] Preferably, the fireproof layer is made of intumescent fireproof coating, and the self-cleaning layer is made of nano-titanium dioxide photocatalytic coating.

[0008] Preferably, both the first bamboo strip layer and the second bamboo strip layer are composed of multiple bamboo strips spliced ​​together, and the multiple bamboo strips are longitudinally adhered and connected to both sides of the core board.

[0009] Preferably, the core board is made of wood chips pressed together.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model effectively enhances the load-bearing capacity and tensile strength of plywood in the length direction by longitudinally arranging and adhering the first and second bamboo strip layers to both sides of the core board, making the plywood less prone to breakage under large loads. Matching interlocking grooves are opened between the first wood board layer and the first bamboo strip layer, and between the second wood board layer and the second bamboo strip layer, and the first and second reinforcing ribs are fixedly adhered and interlocked in the grooves. Through the external auxiliary structure, the overall structural strength and stability of the plywood are enhanced. The interlocking grooves and reinforcing ribs fit tightly together, making the connection between the layers more secure, effectively improving the plywood's ability to resist external impacts and bending deformation, and greatly extending its service life.

[0012] 2. This utility model utilizes a fireproof layer applied to the outer walls of the first and second wood layers. This fireproof layer is made of an intumescent fireproof coating. In the event of a fire, the coating can rapidly expand to form a heat insulation layer, effectively preventing the spread of fire and buying valuable time for personnel evacuation and firefighting rescue, greatly improving the safety of the place of use. At the same time, a self-cleaning layer is provided on the outer layer of the fireproof layer. Under light irradiation, the nano-titanium dioxide photocatalytic coating can generate highly oxidizing free radicals, decomposing dust, oil and other pollutants attached to the surface, reducing the frequency of manual cleaning, keeping the plywood surface clean and maintaining its appearance, while also reducing cleaning costs.

[0013] 3. This utility model uses wood chips to press the core board, which realizes the effective use of resources and cost control. The recycling and reuse of wood chips not only reduces wood waste and conforms to the concept of environmental protection, but also reduces the cost of raw materials. At the same time, the core board plays a supporting and buffering role in the entire plywood structure, further optimizing the overall performance of the plywood. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the overall exploded view of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the outer wooden board of this utility model.

[0017] In the diagram: 1. Plywood body; 2. First wood board layer; 3. First bamboo strip layer; 4. Core board; 5. Second bamboo strip layer; 6. Second wood board layer; 7. First interlocking groove; 8. First reinforcing rib; 9. Second interlocking groove; 10. Third interlocking groove; 11. Second reinforcing rib; 12. Fourth interlocking groove; 13. Fireproof layer; 14. Self-cleaning layer. Detailed Implementation

[0018] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0019] Please see Figure 1 - Figure 3The illustration shows a bamboo-wood composite plywood, including a plywood body 1. The plywood body 1 includes a first wood board layer 2, a first bamboo strip layer 3, a core board 4, a second bamboo strip layer 5, and a second wood board layer 6. The first bamboo strip layer 3 and the second bamboo strip layer 5 are respectively adhered to both sides of the core board 4 by adhesive. The first wood board layer 2 and the second wood board layer 5 are respectively adhered to the outer walls of the first bamboo strip layer 3 and the second wood board layer 5. The first wood board layer 2 and the first bamboo strip layer 3 have matching first locking grooves 7 and second locking grooves 9 on their facing surfaces, and the first locking grooves 7 and the second locking grooves 9 are matched. The inner cavities of the first locking groove 7 and the second locking groove 9 are fixedly adhered. A first reinforcing rib 8 is snapped in place. The second wooden board layer 6 and the second bamboo strip layer 5 have matching third and fourth snap-fit ​​grooves 10 and 12 respectively on their facing surfaces, and the third and fourth snap-fit ​​grooves 10 and 12 are matched. A second reinforcing rib 11 is fixedly and adhesively snapped into the inner cavity of the third and fourth snap-fit ​​grooves 10 and 12. Matching snap-fit ​​grooves are also formed between the first wooden board layer 2 and the first bamboo strip layer 3, and between the second wooden board layer 6 and the second bamboo strip layer 5, and the first and second reinforcing ribs 8 and 11 are fixedly and adhesively snapped into these grooves. This external auxiliary structure enhances the overall structural strength and stability of the plywood. The snap-fit ​​grooves and reinforcing ribs fit tightly together. The first reinforcing rib 8... Both the first and second reinforcing ribs 11 are made of high-strength metal and are long strips with a length adapted to the width of the plywood. They are adhered to each other using strong adhesive. When the plywood is subjected to external impact or bending, the reinforcing ribs can bear part of the stress, thus dispersing and transferring the force and preventing the plywood body 1 from cracking or breaking due to uneven stress. At the same time, the tight fit between the reinforcing ribs and the interlocking grooves restricts the relative displacement between the layers of wood and bamboo strips, further improving the stability of the overall structure of the plywood and ensuring that it maintains good performance during long-term use. This makes the connection between the layers more solid, effectively improving the plywood's ability to resist external impact and bending deformation, and greatly extending its service life.

[0020] The outer walls of the first wood layer 2 and the second wood layer 6 are coated with a fireproof layer 13, and the outer walls of the fireproof layer 13 are coated with a self-cleaning layer 14. The fireproof layer 13 is made of an intumescent fireproof coating, and the self-cleaning layer 14 is made of a nano-titanium dioxide photocatalytic coating. In the event of a fire, it can rapidly expand to form a heat insulation layer, prevent the spread of fire, and improve the safety of the place of use. The nano-titanium dioxide photocatalytic self-cleaning layer 14 outside the fireproof layer 13 generates free radicals to decompose pollutants under light, reducing the cleaning frequency, maintaining the appearance, and reducing costs.

[0021] The first bamboo strip layer 3 and the second bamboo strip layer 6 are both composed of multiple bamboo strips spliced ​​together, and the multiple bamboo strips are longitudinally adhered to both sides of the core board 4. By longitudinally adhering the first bamboo strip layer 3 and the second bamboo strip layer 5 to both sides of the core board 4, the load-bearing and tensile properties in the length direction are enhanced, making it less prone to breakage when subjected to large loads.

[0022] The core board 4 is made by pressing wood chips together; using wood chips to make the core board 4 achieves efficient use of resources, reduces wood waste, and lowers raw material costs.

[0023] It should be noted that this utility model is a bamboo-wood composite plywood. In daily use, by longitudinally adhering the first bamboo strip layer 3 and the second bamboo strip layer 5 to both sides of the core board 4, the load-bearing and tensile properties in the length direction are enhanced, making it less prone to breakage under large loads. Furthermore, matching interlocking grooves are opened between the first and second wood board layers and the corresponding bamboo strip layers to fix and adhere the first and second reinforcing ribs, enhancing the overall structural strength and stability, improving resistance to external impacts and bending deformation, and extending service life. At the same time, a fireproof layer 13 made of intumescent fireproof coating is applied to the outer wall of the first and second wood board layers. In the event of a fire, it can quickly expand to form a heat insulation layer, preventing the spread of fire and improving the safety of the place of use. The nano-titanium dioxide photocatalytic self-cleaning layer 14 outside the fireproof layer 13 generates free radicals to decompose pollutants under light, reducing cleaning frequency, maintaining aesthetics, and reducing costs. In addition, the core board 4 is made by pressing wood chips together, which not only achieves efficient use of resources, reduces wood waste, and lowers raw material costs, but also plays a supporting and buffering role in the structure, further optimizing the overall performance.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bamboo-wood composite plywood, comprising a plywood body (1), characterized in that: The plywood body (1) includes a first wood board layer (2), a first bamboo strip layer (3), a core board (4), a second bamboo strip layer (5), and a second wood board layer (6). The first bamboo strip layer (3) and the second bamboo strip layer (5) are respectively bonded to both sides of the core board (4) with adhesive. The first wood board layer (2) and the second wood board layer are respectively bonded to the outer walls of the first bamboo strip layer (3) and the second bamboo strip layer (5). The first wood board layer (2) and the first bamboo strip layer (3) have matching first locking grooves (7) and second locking grooves (8) respectively on their facing surfaces. The first and second locking grooves (7 and 9) are matched, and the first and second locking grooves (9) are fixedly and adhesively connected to the inner cavity of the first locking groove (7) and the inner cavity of the second locking groove (9). The second wooden board layer (6) and the second bamboo strip board layer (5) are respectively provided with matching third locking grooves (10) and fourth locking grooves (12), and the third locking grooves (10) and fourth locking grooves (12) are matched. The inner cavity of the third locking groove (10) and the inner cavity of the fourth locking groove (12) are fixedly and adhesively connected to the second reinforcing rib (11).

2. The bamboo-wood composite plywood according to claim 1, characterized in that: The outer walls of the first wood board layer (2) and the second wood board layer (6) are coated with a fireproof layer (13), and the outer walls of the fireproof layer (13) are coated with a self-cleaning layer (14).

3. The bamboo-wood composite plywood according to claim 2, characterized in that: The fireproof layer (13) is made of intumescent fireproof coating, and the self-cleaning layer (14) is made of nano titanium dioxide photocatalytic coating.

4. The bamboo-wood composite plywood according to claim 1, characterized in that: The first bamboo strip layer (3) and the second bamboo strip layer (5) are both composed of multiple bamboo strips spliced ​​together, and the multiple bamboo strips are longitudinally adhered to the two sides of the core board (4).

5. The bamboo-wood composite plywood according to claim 1, characterized in that: The core board (4) is made by pressing wood chips together.

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