Combined door plate core

Abstract

The utility model discloses a combined door plate core, and relates to the technical field of door plate manufacturing. The sound insulation board comprises a sound insulation board body, a plurality of sound insulation holes are formed in the sound insulation board body, a plurality of stacked core boards are connected to the side face of the sound insulation board body, a plurality of inclined grooves are formed in the core boards in parallel, and the inclined grooves in the adjacent core boards are arranged in different directions. The door plate has the advantages that the sound insulation holes in the sound insulation plates and the inclined grooves in the laminated core plate are ingeniously combined, the excellent sound insulation performance of the sound insulation plates is fully utilized, the high-strength characteristic of the core plate is exerted, the sound insulation performance of the door plate is improved by optimizing the arrangement mode of the sound insulation holes and the inclined grooves, and the sound insulation effect of the door plate is improved. And meanwhile, the design and processing are simple and convenient, the cost is lower, and a new thought and a new method are provided for the design of the door plate core.

Description

Technical Field

[0001] This utility model relates to the field of door panel manufacturing technology, and in particular to a composite door panel core. Background Technology

[0002] In modern architecture and home decoration, doors are important components connecting various spaces. They not only require an aesthetically pleasing appearance, but also have higher requirements for performance, especially sound insulation and structural strength. Traditional door panel core materials often cannot simultaneously meet the requirements of good sound insulation and sufficient structural stability.

[0003] Early door panels mostly used solid wood or a single board structure. Although this structure could provide sound insulation to some extent, its sound insulation performance was limited due to its uniform density, and it consumed a lot of materials, resulting in high costs. With the advancement of technology, people began to try using multi-layered structures or specially designed boards. However, these designs made it difficult to ensure the sound insulation effect while ensuring the lightweight and structural strength of the door panel.

[0004] One type of composite door panel core in the existing technology includes a sound insulation board and traditional multi-layer solid wood. However, the shrinkage rates of these two types of boards differ greatly, which affects the stability and balance of the entire door panel core. As a result, the actual door panel will have multiple dents, affecting its appearance. Furthermore, multi-layer solid wood is made by gluing multiple flat straight boards together with adhesive, which requires a large amount of glue and is not very environmentally friendly.

[0005] As an important component of the door panel, the performance of the core material directly affects the overall quality of the door panel. There is a core material in the existing technology that has high strength, can withstand a certain amount of external force, and has a shrinkage rate close to that of the sound insulation board. At the same time, it uses less glue and is more environmentally friendly. It can be used to replace the multi-layer solid wood in the core of the composite door panel.

[0006] Based on this, the applicant proposed a combined door panel core to solve the above technical problems. Utility Model Content

[0007] This utility model addresses the shortcomings of existing technologies by providing a combined door panel core to solve the aforementioned technical problems.

[0008] This utility model is solved by the following technical solution:

[0009] A composite door panel core includes a sound insulation board with a plurality of sound insulation holes. A plurality of stacked core boards are connected to the side of the sound insulation board. A plurality of oblique grooves are arranged in parallel on the core boards, and the oblique grooves on adjacent core boards are arranged in different directions.

[0010] Preferably, the sound insulation hole includes a long sound insulation hole and a short sound insulation hole, and the long sound insulation hole and the short sound insulation hole are alternately arranged.

[0011] Preferably, the sound insulation holes are arranged at an angle on the sound insulation plate.

[0012] Preferably, the sound insulation holes on adjacent sound insulation panels have different inclination directions.

[0013] Preferably, the core board includes corrugated board A and corrugated board B, which are alternately stacked.

[0014] Preferably, the inclined groove includes inclined groove A disposed on the corrugated plate A and inclined groove B disposed on the corrugated plate B, wherein the inclined groove A and the inclined groove B are disposed in different directions.

[0015] Preferably, the projections of the center lines of the inclined groove A and the center lines of the inclined groove B onto the plane containing either of the core plates are symmetrical about the normal to the plane containing the door panel.

[0016] Preferably, the projections of the inclined groove A and the inclined groove B onto any of the planes containing the core plate intersect in an "X" shape.

[0017] Preferably, the core board includes corrugated plates A and B arranged alternately, and a connecting plate is provided between corrugated plates A and B, and both corrugated plates A and B are bonded to the connecting plate.

[0018] Preferably, the cross-sectional shape of the inclined groove includes a "V" shape, a "U" shape, or a "︺" shape.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. Optimize sound insulation performance: Traditional door panel core materials, such as solid wood or single-board structure, have limited sound insulation performance. However, this utility model introduces a sound insulation board and sets sound insulation holes on it, which effectively improves the sound insulation effect of the door panel. At the same time, although the core board does not have the same sound insulation performance as the sound insulation board, its unique layered structure and inclined groove design also play an auxiliary role in sound insulation to a certain extent, complementing the sound insulation board and jointly improving the overall sound insulation performance of the door panel.

[0021] 2. Enhanced structural strength: As an important component of the door panel core, the core board has high strength characteristics and can withstand a certain amount of external force. This utility model further enhances the structural strength of the door panel by stacking the core boards and optimizing their connection method and structure. Although the sound insulation board is not as strong as the core board, in the combined design of this utility model, the sound insulation board and the core board support each other and together form a stable door panel structure, ensuring the durability and reliability of the door panel.

[0022] 3. Achieving a balance between lightweight and performance: Traditional multi-layer structures or specially designed panels often struggle to ensure both sound insulation and lightweight door panels. This invention, however, cleverly combines sound insulation panels and core panels, improving sound insulation performance while maintaining the lightweight characteristics of the door panels. This design meets the requirements of modern architecture for aesthetically pleasing and lightweight door panels while ensuring sufficient sound insulation and structural strength, achieving a perfect balance between performance and weight.

[0023] 4. Wood shrinkage stability and uniformity: The shrinkage rates of the sound insulation board and the core board are close to the same. The door panel core formed by the combination of the two has good stability and uniformity. The door panel will not have dents due to large differences in shrinkage rate, and it is more aesthetically pleasing.

[0024] 5. Environmental friendliness: Compared with traditional multi-layer solid wood, the core board uses less glue and is more environmentally friendly. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0027] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0028] Figure 3 This is an exploded three-dimensional view of the present invention.

[0029] In the diagram: 1. Sound insulation board, 11. Long sound insulation hole, 12. Short sound insulation hole, 2. Corrugated board A, 21. Sloping groove A, 3. Corrugated board B, 31. Sloping groove B. Detailed Implementation

[0030] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1:

[0031] like Figures 1 to 3As shown, a composite door panel core of this utility model includes a sound insulation board 1, which has a plurality of sound insulation holes. A plurality of stacked core boards are connected to the side of the sound insulation board 1. A plurality of oblique grooves are arranged in parallel on the core boards. The oblique grooves on adjacent core boards are arranged in different directions. The cross-sectional shape of the oblique grooves includes "V", "U" or "︺" shapes, etc. Those skilled in the art can select one or more of them for combination according to actual needs.

[0032] The aforementioned sound insulation panel 1 refers to the four sides: top, bottom, left, and right, excluding the front and back sides that connect to the door panel.

[0033] The sound insulation holes are inclinedly arranged on the sound insulation board 1, and the inclination directions of the sound insulation holes on adjacent sound insulation boards 1 are different. The sound insulation holes include long sound insulation holes 11 and short sound insulation holes 12, and the long sound insulation holes 11 and the short sound insulation holes 12 are arranged alternately.

[0034] The sound insulation holes are tilted in different directions and are divided into long and short sound insulation holes, which makes the structure of the entire door panel core more complex and helps to improve the sound insulation effect.

[0035] The core board includes corrugated board A2 and corrugated board B3, which are alternately stacked. The inclined groove includes inclined groove A21 on corrugated board A2 and inclined groove B31 on corrugated board B3. The inclined grooves A21 and B31 are arranged in different directions, and the projections of inclined grooves A21 and B31 on any plane of the core board intersect to form an "X" shape.

[0036] The core boards are stacked, and each core board can be simplified as a central plane. The core boards are arranged in parallel, and can be simplified as the central planes being parallel. This central plane is the plane where the core boards are located.

[0037] In another embodiment, specifically, the projections of the center lines of the inclined grooves A21 and B31 onto the plane containing either of the core plates are symmetrical about the normal to the plane containing the door panel.

[0038] Existing core board groove designs are often quite simple, such as simply setting parallel straight grooves on the core board, perpendicular to the door panel. This design can improve the overall bending strength and sound insulation performance of the door to a certain extent, but there is still room for improvement to further enhance the sound insulation performance. This embodiment adopts a slanted groove design, which further improves the sound insulation performance while still maintaining a certain strength. At the same time, the slanted grooves A on corrugated board A and B on corrugated board B are set in staggered directions, with multiple intersections between the two corrugated boards, which facilitates bonding. Therefore, there is no need to set additional connecting plates, reducing costs and further improving strength. Example 2:

[0039] Based on Embodiment 1, the present invention provides a combined door panel core, including a sound insulation board 1, which has a plurality of sound insulation holes. The side of the sound insulation board 1 is connected to a plurality of stacked core boards. A plurality of oblique grooves are arranged in parallel on the core boards. The oblique grooves on adjacent core boards are arranged in different directions. The cross-sectional shape of the oblique grooves includes "V", "U" or "︺" shapes, etc. Those skilled in the art can select one or more of them for combination according to actual needs.

[0040] The sound insulation holes are inclinedly arranged on the sound insulation board 1, and the inclination directions of the sound insulation holes on adjacent sound insulation boards 1 are different. The sound insulation holes include long sound insulation holes 11 and short sound insulation holes 12, and the long sound insulation holes 11 and the short sound insulation holes 12 are arranged alternately.

[0041] The core board includes corrugated plates A2 and B3 arranged alternately. A connecting plate is also provided between corrugated plates A2 and B3. The connecting plate is a flat straight plate. Both corrugated plates A2 and B3 are bonded to the connecting plate. The inclined groove includes an inclined groove A21 provided on the corrugated plate A2 and an inclined groove B31 provided on the corrugated plate B3. The inclined grooves A21 and B31 are arranged in different directions. The projections of the inclined grooves A21 and B31 on any plane of the core board intersect to form an "X" shape.

[0042] In another embodiment, specifically, the projections of the center lines of the inclined grooves A21 and B31 onto the plane containing either of the core plates are symmetrical about the normal to the plane containing the door panel.

[0043] In this embodiment, a connecting plate is provided, which makes it easier to bond corrugated boards and provides better bonding strength compared to Embodiment 1. Also, because of the addition of inclined grooves A and B, the sound insulation effect is better than that of the prior art.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite door panel core characterized by: The sound insulation board (1) is provided with a plurality of sound insulation holes, and a plurality of core boards are connected to the side of the sound insulation board (1) in a stacked manner.

2. A composite door panel core according to claim 1, wherein: The sound insulation holes include long sound insulation holes (11) and short sound insulation holes (12), and the long sound insulation holes (11) and the short sound insulation holes (12) are arranged alternately.

3. A composite door panel core according to claim 1, wherein: The sound insulation holes are arranged obliquely on the sound insulation board (1).

4. A composite door panel core according to claim 3, wherein: The oblique directions of the sound insulation holes on adjacent sound insulation boards (1) are different.

5. A composite door panel core according to claim 1, wherein: The core boards include corrugated boards A (2) and corrugated boards B (3), and the corrugated boards A (2) and the corrugated boards B (3) are arranged alternately in layers.

6. A composite door panel core according to claim 5, wherein: The oblique directions of the oblique grooves A (21) and the oblique grooves B (31) are different.

7. A composite door panel core according to claim 6, wherein: The center lines of the oblique grooves A (21) and the oblique grooves B (31) are symmetric about the normal of the plane on which the door plate is located.

8. A composite door panel core according to claim 6, wherein: The projections of the oblique grooves A (21) and the oblique grooves B (31) on the plane of any core board are staggered in an "X" shape.

9. A composite door panel core according to claim 1, wherein: The core boards include corrugated boards A (2) and corrugated boards B (3) arranged alternately, and a connecting plate is further arranged between the corrugated boards A (2) and the corrugated boards B (3).

10. A composite door panel core according to claim 1, wherein: The cross-sectional shape of the oblique groove includes a "V" shape, a "U" shape, or a "︺" shape.

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