A deformation-resistant building plywood

Abstract

The utility model discloses an anti -deformation building plywood, including center base plate, the outside of center base plate is fixed with a pair of aluminium honeycomb core board, the outside of a pair of aluminium honeycomb core board all is fixed with first base plate, the outside of first base plate is fixed with second base plate, the outside of second base plate is fixed with third base plate, the thickness of center base plate to third base plate reduces in this way, the texture of center base plate to third base plate is 30 degree incremental staggered arrangement, and the whole plywood is composed of 7 base plates, starting from center base plate, the outside is the base plate arrangement of thickness gradually decreasing in proper order, wherein, base plate texture is staggered arrangement according to 30 degree 60 degree 90 degree, and the base plate of different thickness produces reverse stress when hygroscopic expansion, realizes the self -balancing of plywood, can reduce the warpage of plywood, and cooperates aluminium honeycomb core board and enhances the support of center base plate, can carry out active anti -deformation operation to plywood, has improved the service life of plywood.

Description

Technical Field

[0001] This utility model relates to the field of plywood, and more particularly to a deformation-resistant plywood for building construction. Background Technology

[0002] Plywood is a sheet material consisting of three or more layers of sheet material, made by rotary cutting logs into veneers or slicing timber into thin sheets and then gluing them together with adhesives. It usually uses an odd number of veneer layers, with the fiber directions of adjacent veneers glued perpendicular to each other. Traditional construction plywood has a relatively simple structure. Because the grain direction of the single-layer substrate is consistent, the plywood experiences stress concentration, making it susceptible to warping and delamination due to changes in temperature and humidity. It also lacks an active anti-deformation structure, affecting the service life of construction plywood and resulting in poor practicality. To address these issues, we propose an anti-deformation construction plywood. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a plywood for building that is resistant to deformation.

[0004] The present invention solves its technical problem through the following technical solution: it includes a central substrate, a pair of aluminum honeycomb core plates are fixed to the outside of the central substrate, a first substrate is fixed to the outside of each pair of aluminum honeycomb core plates, a second substrate is fixed to the outside of the first substrate, a third substrate is fixed to the outside of the second substrate, the thickness of the central substrate to the third substrate decreases accordingly, and the texture of the central substrate to the third substrate is arranged in an alternating pattern with an increasing 30°.

[0005] As a further embodiment of this utility model: T300 carbon fiber bundle A is fixed inside the central substrate, T300 carbon fiber bundle B is fixed inside the first substrate, T300 carbon fiber bundle C is fixed inside the second substrate, and T300 carbon fiber bundle D is fixed inside the third substrate.

[0006] As a further embodiment of this utility model: the T300 carbon fiber bundles A to D are alternately vertically distributed.

[0007] As a further improvement of this utility model, a panel is fixed to the outer side of the third substrate.

[0008] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. The plywood is composed of 7 substrates. Starting from the central substrate, the substrates are arranged with decreasing thicknesses towards the outside. The substrate textures are arranged in an alternating pattern of 30°→60°→90°. When the substrates of different thicknesses absorb moisture and expand, they generate reverse stress, achieving self-balance of the plywood and reducing its warpage. Combined with the reinforcement and support of the aluminum honeycomb core panel for the central substrate, the plywood can actively resist deformation, improving its service life and thus its practicality. 2. The T300 carbon fiber bundles A, B, C, and D, which are perpendicularly distributed to each other, can form an all-round limiting support for the edge of the substrate, which can suppress the cracking of the plywood edge and further improve the bending strength of the plywood. Attached Figure Description

[0009] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown; Figure 2 The present invention provides an embodiment of the present invention. Figure 1 Enlarged structural diagram of part A in the middle; Figure 3 An exploded structural diagram according to an embodiment of the present invention is shown.

[0010] Legend: 100 Central substrate, 101T300 carbon fiber bundle A, 110 aluminum honeycomb core panel, 120 First substrate, 121T300 carbon fiber bundle B, 130 Second substrate, 131T300 carbon fiber bundle C, 140 Third substrate, 141T300 carbon fiber bundle D, 150 Panel. Detailed Implementation

[0011] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to indicate or imply that the device or component 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.

[0012] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] Please see Figure 1-3 This utility model provides a technical solution: It includes a central substrate 100, with a pair of aluminum honeycomb core panels 110 fixed to the outer side of the central substrate 100. A first substrate 120 is fixed to the outer side of each pair of aluminum honeycomb core panels 110. A second substrate 130 is fixed to the outer side of the first substrate 120, and a third substrate 140 is fixed to the outer side of the second substrate 130. The thickness of the central substrate 100 decreases from the third substrate 140, and the texture of the central substrate 100 to the third substrate 140 decreases at a 30° angle. The plywood is composed of 7 substrates, starting from the central substrate 100 and arranged with decreasing thicknesses towards the outside. The substrate textures are arranged in an alternating pattern of 30°→60°→90°. When the substrates of different thicknesses absorb moisture and expand, they generate reverse stress, achieving self-balance of the plywood and reducing its warpage. Combined with the reinforced support of the aluminum honeycomb core panel 110 for the central substrate 100, the plywood can actively resist deformation, improving its service life and thus its practicality.

[0015] Specifically, a T300 carbon fiber bundle A101 is fixed inside the central substrate 100, a T300 carbon fiber bundle B121 is fixed inside the first substrate 120, a T300 carbon fiber bundle C131 is fixed inside the second substrate 130, and a T300 carbon fiber bundle D141 is fixed inside the third substrate 140. The T300 carbon fiber bundle A101 provides limiting support for the edge of the central substrate 100, the T300 carbon fiber bundle B121 provides limiting support for the edge of the first substrate 120, the T300 carbon fiber bundle C131 provides limiting support for the edge of the second substrate 130, and the T300 carbon fiber bundle D141 provides limiting support for the edge of the third substrate 140.

[0016] Specifically, the T300 carbon fiber bundles A101 to D141 are alternately and vertically distributed; the mutually perpendicularly distributed T300 carbon fiber bundles A101, B121, C131 and D141 can form an all-round limiting support for the edge of the substrate, which can suppress the cracking of the plywood edge and further improve the bending strength of the plywood.

[0017] Specifically, a panel 150 is fixed to the outer side of the third substrate 140; the panel 150 provides outermost protection for the plywood.

[0018] Working principle: In use, the plywood consists of 7 substrates. Starting from the central substrate 100, the substrates are arranged with decreasing thickness outwards. The substrate texture is staggered at 30°→60°→90°. The substrates of different thicknesses generate reverse stress when they absorb moisture and expand, achieving self-balance of the plywood and reducing its warpage. Combined with the aluminum honeycomb core panel 110 providing reinforcement support to the central substrate 100, it can actively resist deformation. T300 carbon fiber bundles A101 provide limiting support to the edge of the central substrate 100, and T300 carbon fiber bundles B121 provide support to the first substrate... The edges of the 120 substrate are provided with limiting support. The edges of the second substrate 130 are provided with limiting support by T300 carbon fiber bundles C131, and the edges of the third substrate 140 are provided with limiting support by T300 carbon fiber bundles D141. The T300 carbon fiber bundles A101, B121, C131 and D141, which are perpendicularly distributed to each other, can form all-round limiting support for the edges of the substrates, which can suppress cracking of the plywood edges and further improve the bending strength of the plywood. The outermost protection of the plywood is provided by the panel 150.

[0019] Although the present invention discloses embodiments and accompanying drawings, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and accompanying drawings.

Claims

1. A type of deformation-resistant plywood for construction, characterized in that, The system includes a central substrate (100), a pair of aluminum honeycomb core panels (110) fixed to the outside of the central substrate (100), a first substrate (120) fixed to the outside of each pair of aluminum honeycomb core panels (110), a second substrate (130) fixed to the outside of the first substrate (120), and a third substrate (140) fixed to the outside of the second substrate (130). The thickness of the central substrate (100) to the third substrate (140) decreases accordingly, and the texture of the central substrate (100) to the third substrate (140) is arranged in an alternating pattern with an increasing 30°.

2. The anti-deformation plywood for construction according to claim 1, characterized in that, The central substrate (100) has a T300 carbon fiber bundle A (101) fixed inside, the first substrate (120) has a T300 carbon fiber bundle B (121) fixed inside, the second substrate (130) has a T300 carbon fiber bundle C (131) fixed inside, and the third substrate (140) has a T300 carbon fiber bundle D (141) fixed inside.

3. The anti-deformation plywood for construction according to claim 2, characterized in that, The T300 carbon fiber bundles A (101) to D (141) are alternately vertically distributed.

4. The anti-deformation plywood for construction according to claim 1, characterized in that, A panel (150) is fixed to the outside of the third substrate (140).

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