Door plate core

Abstract

The utility model discloses a door plate core, and relates to the technical field of door plate manufacturing. The door plate comprises a plurality of layers of stacked core plates, a plurality of grooves are formed in the core plates in parallel, the center lines of the grooves are not perpendicular to the plane where the door plate is located, and the grooves in the adjacent core plates are arranged in different directions. Compared with the prior art, the utility model has the beneficial effects that the groove structures are arranged on the core plates, and the arrangement directions of the grooves on the adjacent core plates are different, so that the interlayer binding force between the core plates is greatly enhanced, and compared with the traditional mode of connecting only depending on a straight plate, the groove design saves the cost and improves the production efficiency. The overall bending strength of the door is further improved; by changing the arrangement direction of the grooves, the grooves in the adjacent core plates form a complex structure, and the structure can effectively block a sound transmission path, so that the sound insulation performance of the door is remarkably improved.

Description

Technical Field

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

[0002] In modern home decoration and construction, doors, as an important part connecting various spaces, not only need to have an aesthetically pleasing appearance, but also need to have good structural strength and sound insulation and heat preservation properties. The door panel core, as the core structural component of the door, is directly related to the overall quality and performance of the door.

[0003] Traditional door panel cores are mostly made of solid wood, particleboard, or MDF. While these materials can meet the basic needs of doors to a certain extent, they also have some problems. For example, solid wood door panel cores are expensive and easily deformed by environmental humidity; particleboard and MDF may release harmful substances such as formaldehyde, causing pollution to the indoor environment.

[0004] To improve the performance of traditional door panel cores, the industry has begun to explore new door panel core structures. Among them, multi-layer stacked core panel structures have attracted attention due to their good structural stability and sound insulation performance. However, existing multi-layer stacked core panel structures often have problems such as weak interlayer bonding and insufficient bending strength. In order to enhance the interlayer bonding and overall structural strength of the core panels, some designers have tried to set groove structures on the core panels to increase their strength. However, in order to ensure the interlayer bonding of the core panels, straight plates need to be set between the core panels, which increases costs. Moreover, the groove design of existing core panels is often relatively simple, such as only setting parallel straight grooves on the core panels, which are perpendicular to the door panel. Such designs 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 without sacrificing its strength.

[0005] Based on this, the applicant proposed a door panel core to solve the above technical problems. Utility Model Content

[0006] This utility model addresses the shortcomings of existing technologies by providing a door panel core to solve the aforementioned technical problems.

[0007] This utility model is solved by the following technical solution:

[0008] A door panel core includes several layers of stacked core boards, with several grooves arranged in parallel on the core boards. The center line of the grooves is not perpendicular to the plane of the door panel, and the grooves on adjacent core boards have different orientations.

[0009] Preferably, the core board includes corrugated plates A and B arranged alternately, and the corrugated plates A and B are bonded together.

[0010] Preferably, the groove includes a slanted groove A disposed on the corrugated plate A and a slanted groove B disposed on the corrugated plate B, wherein the slanted groove A and the slanted groove B are not parallel.

[0011] Preferably, the projections of the center line of the inclined groove A and the center line of the inclined groove B onto the plane where either of the core boards is located are symmetrical about the normal to the plane where the door panel is located.

[0012] 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.

[0013] 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.

[0014] Preferably, the cross-sectional shape of the groove includes a "V" shape, a "U" shape, or a "︺" shape.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Improved structural strength: The multi-layered stacked core board structure of this utility model has good structural stability. On this basis, by setting groove structures on the core board, and the grooves on adjacent core boards are set in different directions, this design greatly enhances the interlayer bonding force between the core boards. Compared with the traditional method of relying solely on straight plate connections, the groove design of this utility model not only saves costs, but also further improves the overall bending strength of the door.

[0017] 2. Optimize sound insulation performance: Traditional core board groove designs are often relatively simple, such as simply setting parallel straight grooves perpendicular to the door panel on the core board. Such designs have limited improvement on sound insulation performance. However, this utility model changes the setting direction of the grooves, so that the grooves on adjacent core boards form an intricate structure. This structure can effectively block the sound propagation path, thereby significantly improving the sound insulation performance of the door.

[0018] 3. Solving the problems of traditional materials: The multi-layer stacked core board structure adopted by this utility model can avoid the problems of high cost of solid wood and deformation due to environmental humidity. It also avoids the problem of formaldehyde and other harmful substances that may be released from particleboard and MDF. This new structure is not only environmentally friendly, but also has stable performance and is more suitable for the needs of modern home decoration and construction industry.

[0019] 4. Design Flexibility and Diversity: The groove design of this utility model is not limited to simple shapes and settings, but can be flexibly adjusted according to actual needs. For example, the groove can be designed in various shapes such as "V", "U" or "︺" to meet the different strength and sound insulation performance requirements of different door panels. This design flexibility makes this utility model more adaptable to the diverse needs of the market. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model.

[0022] Figure 2 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model.

[0023] Figure 3 This is an exploded three-dimensional view of Embodiment 1 of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of Embodiment 2 of this utility model.

[0025] Figure 5 This is an exploded three-dimensional view of Embodiment 2 of this utility model.

[0026] In the diagram: 1. Corrugated plate A, 11. Sloping groove A, 2. Corrugated plate B, 21. Sloping groove B, 3. Connecting plate. Detailed Implementation

[0027] 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:

[0028] like Figures 1 to 3As shown, a door panel core of this utility model includes several layers of stacked core boards. Each core board includes alternating corrugated plates A1 and B2, which are bonded together. Several grooves are arranged parallel to each other on the core board. The center line of each groove is not perpendicular to the plane of the door panel. The grooves on adjacent core boards have different orientations. The cross-sectional shape of the grooves includes "V", "U", or "︺" shapes, etc. Those skilled in the art can design one or more cross-sectional shapes of grooves according to their needs.

[0029] The groove includes a slanted groove A11 on the corrugated plate A1 and a slanted groove B21 on the corrugated plate B2. The slanted groove A11 and the slanted groove B21 are not parallel, and the projections of the slanted groove A11 and the slanted groove B21 on any plane of the core plate intersect to form an "X" shape.

[0030] 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.

[0031] In another embodiment, specifically, the projections of the center lines of the inclined grooves A11 and B21 onto the plane containing either of the core plates are symmetrical about the normal to the plane containing the door panel.

[0032] Because the inclined grooves A11 on corrugated plate A1 and B21 on corrugated plate B2 are arranged in staggered directions, there are multiple intersections between the two corrugated plates, which facilitates bonding. Therefore, there is no need to set up additional connecting plates, reducing costs and further improving strength. Example 2:

[0033] like Figures 4 to 5 As shown in Embodiment 1, the present invention provides a door panel core comprising several layers of stacked core panels. Each core panel includes alternating corrugated plates A1 and B2, with a connecting plate 3 between the corrugated plates A1 and B2. Both corrugated plates A1 and B2 are bonded to the connecting plate 3. Several grooves are arranged parallel to each other on the core panels. The center line of each groove is not perpendicular to the plane of the door panel. The grooves on adjacent core panels have different orientations. The cross-sectional shape of the grooves includes "V", "U", or "︺" shapes, etc. Those skilled in the art can design one or more cross-sectional shapes of grooves according to their needs.

[0034] The groove includes a slanted groove A11 on the corrugated plate A1 and a slanted groove B21 on the corrugated plate B2. The slanted groove A11 and the slanted groove B21 are not parallel, and the projections of the slanted groove A11 and the slanted groove B21 on any plane of the core plate intersect to form an "X" shape.

[0035] In another embodiment, specifically, the projections of the center lines of the inclined grooves A11 and B21 onto the plane containing either of the core plates are symmetrical about the normal to the plane containing the door panel.

[0036] 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.

[0037] 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.

[0038] 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 door panel core, characterized in that: The core board includes several layers of stacked core boards. The core board includes corrugated board A (1) and corrugated board B (2) arranged alternately. The corrugated board A (1) and the corrugated board B (2) are fixedly connected by adhesive. Several grooves are arranged in parallel on the core board. The center line of the groove is not perpendicular to the plane where the door panel is located. The grooves on adjacent core boards are arranged in different directions.

2. The door panel core according to claim 1, characterized in that: The core board includes corrugated board A (1) and corrugated board B (2) arranged alternately, and corrugated board A (1) and corrugated board B (2) are bonded together.

3. A door panel core according to claim 2, characterized in that: The groove includes a slanted groove A (11) provided on the corrugated plate A (1) and a slanted groove B (21) provided on the corrugated plate B (2), wherein the slanted groove A (11) and the slanted groove B (21) are not parallel.

4. A door panel core according to claim 3, characterized in that: The projections of the center line of the inclined groove A (11) and the center line of the inclined groove B (21) onto the plane where either of the core boards is located are symmetrical about the normal to the plane where the door panel is located.

5. A door panel core according to claim 3, characterized in that: The projections of the inclined groove A (11) and the inclined groove B (21) on any of the planes where the core plate is located intersect to form an "X" shape.

6. A door panel core according to claim 1, characterized in that: The core board includes corrugated board A (1) and corrugated board B (2) arranged alternately. A connecting plate (3) is also provided between corrugated board A (1) and corrugated board B (2). Both corrugated board A (1) and corrugated board B (2) are bonded to the connecting plate (3).

7. A door panel core according to claim 1, characterized in that: The cross-sectional shape of the groove includes "V", "U", or "︺".

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