Solid wood composite door plate

By introducing a sound-absorbing perforated board layer, a sound insulation layer, a fire-resistant decorative layer, and a waterproof substrate layer into the solid wood composite door panel, and by setting a waterproof sealant layer at the edge of the door frame, the problems of sound wave penetration, flammability, and waterproofing of the solid wood composite door panel are solved, thereby improving the sound insulation effect and service life.

CN223937963UActive Publication Date: 2026-02-24JIANMU (GUANGDONG) CUSTOM FURNITURE CO LTD
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Patent Information

Application Number
CN202520352983.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-24
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing solid wood composite door panels have shortcomings in terms of sound wave penetration, fire resistance, and water resistance, resulting in poor sound insulation, easy combustion, and short service life.

Method used

Design a solid wood composite door panel comprising a solid wood core layer, a sound-absorbing perforated board layer, a sound insulation layer, a waterproof substrate layer, and a fire-resistant decorative layer. A waterproof sealant layer is provided between the door panel body and the frame. The layers are connected by hot pressing or adhesive bonding. The frame is made of metal to enhance structural strength.

Benefits of technology

The combination of sound-absorbing perforated panels and sound-insulating layers enhances sound insulation and noise reduction, while the fire-resistant finish layer improves fire resistance. The waterproof substrate layer and sealant layer prevent moisture penetration and extend the lifespan of the door panel.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223937963U_ABST
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Abstract

The utility model discloses a solid wood composite door plate which comprises a door plate body, the door plate body comprises a solid wood plate core layer and sound absorption pore plate layers, sound insulation layers, waterproof base material layers and fireproof facing layers which are symmetrically arranged on the two sides of the solid wood plate core layer from inside to outside, and an edge sealing frame is arranged on the periphery of the door plate body. And a waterproof sealant layer is arranged between the edge sealing frame and the door plate body. By the adoption of the technical scheme, the sound absorption holes in the sound absorption hole plate layer can enable sound wave diffuse reflection and the cavity damping effect to reduce noise, the sound absorption holes are matched with the sound insulation layer to form a double sound insulation and noise reduction barrier, and the sound insulation and noise reduction effect of the door plate can be well improved; the door plate has a fireproof function through the fireproof facing layer, and the protection performance of the door plate is improved; the waterproof base material layer can prevent water vapor from permeating and improve the waterproof performance of the door plate, the waterproof sealant layer can well prevent water vapor from permeating from gaps around the door plate, the waterproof performance of the door plate is further improved, and therefore the service life of the door plate can be prolonged.
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Description

Technical Field

[0001] This utility model relates to the technical field of door panels, and in particular to a solid wood composite door panel. Background Technology

[0002] Solid wood composite doors are doors made primarily of solid wood, supplemented by various other composite materials. While existing solid wood composite door panels can meet certain usage requirements, they still have some structural shortcomings. For example, they lack internal sound-absorbing structures, allowing sound waves to easily penetrate and resulting in poor sound insulation; they do not use flame-retardant materials, making them easily flammable at high temperatures and exhibiting weak fire resistance; and the lower perimeter of the solid wood composite door panels is not waterproofed, making them prone to absorbing moisture and expanding, which can damage the door panel and reduce its lifespan. Utility Model Content

[0003] In order to overcome the existing technical defects, the purpose of this utility model is to provide a solid wood composite door panel to solve the above-mentioned technical problems.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] According to one aspect of this utility model, a solid wood composite door panel is designed, comprising: a door panel body, the door panel body comprising a solid wood core layer and a sound-absorbing perforated board layer, a sound insulation layer, a waterproof substrate layer and a fireproof decorative layer symmetrically arranged on both sides of the solid wood core layer from the inside to the outside, the door panel body being provided with a sealing frame, and a waterproof sealant layer being provided between the sealing frame and the door panel body.

[0006] By adopting the above technical solution, the sound-absorbing holes on the sound-absorbing perforated plate can reduce noise through diffuse reflection of sound waves and cavity damping effect. Together with the sound insulation layer, they form a double sound insulation and noise reduction barrier, which can effectively improve the sound insulation and noise reduction effect of the door panel. The fire-resistant finishing layer gives the door panel fire resistance, improving its protective performance. The waterproof substrate layer can block water vapor penetration, improving the waterproof performance of the door panel. By setting a waterproof sealant layer between the sealing frame and the door panel body, water vapor can be effectively prevented from seeping in from the gaps around the door panel, further improving the waterproof performance of the door panel and thus extending its service life.

[0007] To better address the aforementioned technical deficiencies, this utility model also offers a superior technical solution:

[0008] In some embodiments, the thickness of the solid wood core layer is 20-30 mm, and the thickness of the sound-absorbing perforated board layer is 5-10 mm.

[0009] In some embodiments, the sound insulation layer is sound insulation cotton, sound insulation felt, or foamed rubber, with a thickness of 2-5 mm.

[0010] In some embodiments, the porosity of the sound-absorbing holes on the sound-absorbing perforated plate layer is 30%-40%, the diameter of the sound-absorbing holes is 3-5mm, and the sound-absorbing holes on both sides of the solid wood core layer are staggered.

[0011] In some embodiments, the outer surface of the waterproof substrate layer is coated with a nano-hydrophobic coating. This further enhances the waterproof performance of the door panel.

[0012] In some embodiments, the sealing frame is made of metal and consists of four side plates fixed together. Using metal for the sealing frame can improve the structural strength of the door panel and make it less prone to deformation.

[0013] In some embodiments, the fire-retardant finish layer covers the sides of the sealing frame.

[0014] In some embodiments, a moisture-proof layer is provided between the door panel body and the waterproof sealant layer. The moisture-proof layer further enhances the waterproof performance of the door panel.

[0015] In some embodiments, the waterproof substrate layer is a poplar veneer impregnated with melamine resin, with a thickness of 5-8 mm. The resin impregnation process seals the pores of the wood, improving moisture resistance. Limiting the thickness to 5-8 mm ensures the substrate has sufficient mechanical strength and waterproof stability, while preventing the overall door panel from becoming too thick. Attached Figure Description

[0016] Figure 1 A structural schematic diagram of a solid wood composite door panel according to one embodiment of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the door panel body and the edge banding.

[0018] Figure 3 This is a cross-sectional structural diagram of a solid wood composite door panel;

[0019] Figure label:

[0020] 1. Door panel body; 11. Solid wood core layer; 12. Sound-absorbing perforated board layer; 121. Sound-absorbing holes; 13. Sound insulation layer; 14. Waterproof substrate layer; 15. Fireproof decorative layer; 2. Sealing frame; 21. Side panel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, and fixing should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] refer to Figures 1 to 3 As shown, the present invention provides a solid wood composite door panel, comprising: a door panel body 1, the door panel body 1 comprising a solid wood core layer 11 and a sound-absorbing perforated board layer 12, a sound insulation layer 13, a waterproof substrate layer 14 and a fireproof decorative layer 15 symmetrically arranged on both sides of the solid wood core layer 11 from the inside to the outside, and adjacent layers are connected together by conventional processes such as hot pressing or adhesive bonding.

[0025] The thickness of the solid wood core layer 11 is 20-30mm, specifically 20mm, 25mm or 30mm. In this embodiment, the thickness of the solid wood core layer 11 is preferably 25mm. The solid wood core layer 11 is made of several solid wood blocks or solid wood boards joined by finger joints or tenons.

[0026] The thickness of the sound-absorbing perforated plate layer 12 is 5-10 mm, specifically 5 mm, 7 mm, or 10 mm. In this embodiment, the thickness of the sound-absorbing perforated plate layer 12 is preferably 7 mm. The porosity of the sound-absorbing holes 121 on the sound-absorbing perforated plate layer 12 is 30%-40%, and the diameter of the sound-absorbing holes 121 is 3-5 mm, specifically 3 mm, 4 mm, or 5 mm. In this embodiment, the diameter of the sound-absorbing holes 121 is preferably 5 mm. The sound-absorbing perforated plate layer 12 is composed of an aluminum plate, aluminum alloy plate, plastic plate, or wood plate, etc., with sound-absorbing holes provided.

[0027] The sound-absorbing holes 121 on both sides of the solid wood core layer 11 and the sound-absorbing hole layer 12 are staggered.

[0028] The sound insulation layer 13 is made of sound insulation cotton, sound insulation felt, or foamed rubber, etc. In this embodiment, the sound insulation layer 13 is preferably made of sound insulation cotton. The thickness of the sound insulation layer 13 is 2-5mm, and the thickness is 2mm, 3mm or 5mm. In this embodiment, the thickness of the sound insulation layer 13 is preferably 3mm.

[0029] The waterproof substrate layer 14 is a poplar veneer, EVA waterproof board, extruded board, or PVC board impregnated with melamine resin. In this embodiment, the waterproof substrate layer 14 is preferably a poplar veneer impregnated with melamine resin, with a thickness of 5-8mm, specifically 5mm, 7mm, or 8mm. In this embodiment, the waterproof substrate layer 14 is preferably 5mm thick.

[0030] The outer surface of the waterproof substrate layer 14 is coated with a nano-hydrophobic coating.

[0031] A door panel body 1 is surrounded by a frame 2. A waterproof sealant layer is provided between the frame 2 and the door panel body 1. The frame 2 is made of metal, specifically aluminum, aluminum alloy, or stainless steel, etc. The frame 2 is composed of four side plates 21 fixed together, which are welded or fixed with screws. A fireproof decorative layer 15 covers the front and back sides of the frame 2. The fireproof decorative layer 15 is a conventional fireproof decorative structure, generally made of inorganic materials with good fire resistance, such as mineral wool, calcium silicate, and aluminum silicate.

[0032] In some embodiments, a moisture-proof layer is provided between the door panel body 1 and the waterproof sealant layer. The moisture-proof layer is a waterproof and breathable membrane, a vapor barrier membrane, or an epoxy moisture-proof coating, etc.

[0033] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A solid wood composite door panel, characterized in that, include: The door panel body includes a solid wood core layer and sound-absorbing perforated board layers, a sound insulation layer, a waterproof substrate layer, and a fireproof finishing layer symmetrically arranged on both sides of the solid wood core layer from the inside out. The door panel body is provided with a sealing frame, and a waterproof sealant layer is provided between the sealing frame and the door panel body.

2. The solid wood composite door panel according to claim 1, characterized in that, The thickness of the solid wood core layer is 20-30mm, and the thickness of the sound-absorbing perforated board layer is 5-10mm.

3. A solid wood composite door panel according to claim 1 or 2, characterized in that, The sound insulation layer is made of sound insulation cotton, sound insulation felt, or foamed rubber, with a thickness of 2-5mm.

4. A solid wood composite door panel according to claim 1, characterized in that, The porosity of the sound-absorbing holes on the sound-absorbing perforated board layer is 30%-40%, and the diameter of the sound-absorbing holes is 3-5mm. The sound-absorbing holes on both sides of the solid wood core layer are staggered.

5. A solid wood composite door panel according to claim 1, characterized in that, The outer surface of the waterproof substrate layer is coated with a nano-hydrophobic coating.

6. A solid wood composite door panel according to claim 1, characterized in that, The sealing frame is made of metal and consists of four side plates fixed together.

7. A solid wood composite door panel according to claim 1, characterized in that, The fire-resistant finish layer covers the sides of the sealing frame.

8. A solid wood composite door panel according to claim 1, characterized in that, A moisture-proof layer is provided between the door panel body and the waterproof sealant layer.

9. A solid wood composite door panel according to claim 1, characterized in that, The waterproof substrate layer is a poplar veneer impregnated with melamine resin, with a thickness of 5-8mm.