Composite door panel with built-in reinforcement structure

Abstract

The utility model discloses a kind of composite door panels of built-in reinforcing structure, including main plate body and vice plate body, and the main plate body is equipped with the accommodation groove, groove is equipped with the reinforcing plate of wave shape, reinforcing plate two sides are coated with heat preservation coating, and its two sides are filled with foamed polyurethane;Vice plate body and main plate body are embedded and installed, and the above structure is tightly packaged, and main plate body and vice plate body are embedded by the cooperation of annular groove and annular lug, and sealing ring can be set to enhance sealing.The utility model improves the mechanical strength of door panel significantly by wave shape reinforcing plate, and multiple thermal insulation system is constituted by heat preservation coating and foamed polyurethane filling layer, effectively improve heat insulation performance.In addition, the utility model can also carry out vacuumizing treatment to the cavity after packaging, further optimize thermal insulation effect, and the door panel structure is reasonable, high in strength, good in heat preservation and heat insulation and sealing performance, with wide applicability.

Description

Technical Field

[0001] This utility model relates to the field of composite door panel technology, specifically a composite door panel with a built-in reinforcing structure. Background Technology

[0002] In the construction and home decoration industry, composite door panels are widely used due to their diverse appearance and controllable cost. However, many existing composite door panels suffer from insufficient structural strength, easy deformation, and poor thermal insulation performance. Traditional solutions typically involve filling the inside of the door panel with simple honeycomb paper or ordinary foam materials. These materials have low strength, limited insulation effect, and may experience performance degradation due to settlement or aging over long-term use. While some door panels have attempted to incorporate reinforcing ribs, their structures are often too simple and fail to effectively integrate with the insulation system. This results in sacrificing insulation performance while increasing strength, or having weaknesses at the sealing points, affecting overall energy efficiency. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and provide a composite door panel with a built-in reinforced structure, which can simultaneously achieve high structural strength, excellent and long-lasting thermal insulation performance and reliable sealing.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a composite door panel with a built-in reinforcing structure, comprising a main body and a secondary body, wherein the secondary body is fitted and installed with the main body, the main body has a mounting groove, a corrugated reinforcing plate is installed in the mounting groove, both sides of the reinforcing plate are coated with a thermal insulation coating, and polyurethane foam is attached to both sides of the reinforcing plate, the secondary body tightly encapsulates the polyurethane foam and the reinforcing plate in the mounting groove, and the sides of the main body and the secondary body are also coated with the thermal insulation coating.

[0005] Furthermore, the reinforcing plate is a continuous corrugated structure formed by connecting multiple regularly arranged trapezoidal plates, and the heat-insulating coating is applied to both corrugated surfaces of the reinforcing plate.

[0006] Furthermore, the reinforcing plate is fixedly installed in the mounting groove by fasteners.

[0007] Furthermore, the foamed polyurethane is bonded between the reinforcing plate and the main body, and the foamed polyurethane is bonded between the reinforcing plate and the sub-plate.

[0008] Furthermore, the main board body has an annular groove near its side, and the side of the sub-board body has an annular protrusion that fits into the annular groove; the main board body and the sub-board body are fixedly connected by fasteners.

[0009] Furthermore, a sealing ring is provided between the annular groove and the mating wall of the annular protrusion.

[0010] Furthermore, the outer surfaces of the main board and the sub-board are also coated with the heat-insulating coating.

[0011] Furthermore, the mounting slot after the main board and the sub-board are packaged is evacuated.

[0012] Furthermore, the thermal insulation coating is a polyurethane thermal insulation coating or a phenolic resin thermal insulation coating.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting corrugated reinforcing plates in the mounting groove, the compressive and bending strength of the door panel is significantly improved, making it less prone to deformation and with a long service life; both sides of the reinforcing plates and the sides of the door panel are coated with thermal insulation coatings, which, combined with the polyurethane foam filling on both sides of the reinforcing plates, form multiple thermal insulation barriers, effectively blocking heat conduction and improving the overall thermal insulation performance of the door panel.

[0014] 2. The main body and the sub-body are connected by an interlocking structure of annular groove and annular protrusion, and a sealing ring is set in between to effectively prevent the penetration of air and moisture, thereby enhancing the airtightness and watertightness of the door panel.

[0015] 3. The polyurethane foam filling and the encapsulation of the sub-panel make the internal structure a compact whole, improving the stability and integrity of the door panel. Furthermore, the fasteners ensure a firm and reliable connection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the reinforcing plate installed in the mounting groove in this utility model; Figure 3 This is a cross-sectional view of the reinforcing plate and the polyurethane foam in this utility model; Figure 4 This is an exploded view of the main board and the sub-board of this utility model.

[0017] In the diagram: 1-Main board body, 2-Sub-board body, 3-Insulation groove, 4-Reinforcing plate, 5-Insulation coating, 6-Foamed polyurethane, 7-Annular groove, 8-Annular protrusion. 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.

[0019] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation 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.

[0020] like Figures 1 to 4 As shown, this utility model provides a composite door panel with a built-in reinforcing structure, including a main body 1 and a secondary body 2. The main body 1 and the secondary body 2 are installed by interlocking to form the main structure of the door panel. A mounting groove 3 is provided on the main body 1 to accommodate a reinforcing plate 4 and polyurethane foam 6. The reinforcing plate 4 has a corrugated structure, specifically composed of multiple regularly arranged trapezoidal plates connected in an undulating manner to form a continuous corrugated structure. This design effectively improves the overall rigidity and deformation resistance of the door panel.

[0021] Both sides of the reinforcing plate 4 are coated with an insulation coating 5, which is either a polyurethane insulation coating or a phenolic resin insulation coating, to enhance the heat insulation performance of the door panel. The reinforcing plate 4 is fixedly installed in the mounting groove 3 with fasteners (such as screws or rivets) to ensure its stable position. On both sides of the reinforcing plate 4, i.e., on the surfaces that contact the main body 1 and the sub-plate 2, polyurethane foam 6 is attached. The polyurethane foam 6 fills the gaps between the reinforcing plate 4 and the main body 1 and the sub-plate 2, not only providing cushioning and shock absorption but also further improving the heat insulation effect of the door panel.

[0022] After the sub-panel 2 is fitted into the main plate 1, the polyurethane foam 6 and the reinforcing plate 4 are tightly encapsulated in the mounting groove 3, forming a complete door panel structure. To enhance sealing, an annular groove 7 is provided near the side of the main plate 1, and an annular protrusion 8 is provided on the side of the sub-panel 2, which fits into the annular groove 7. A sealing ring (not shown in the figure) is provided between the mating walls of the annular groove 7 and the annular protrusion 8 to effectively prevent the intrusion of external moisture and air. The main plate 1 and the sub-panel 2 are fixedly connected by fasteners (such as screws) to ensure the robustness of the door panel structure.

[0023] In addition, the outer surfaces of the main body 1 and the sub-body 2 are also coated with a thermal insulation coating 5, thereby forming a continuous thermal insulation layer on the entire door panel surface, further improving the overall thermal insulation performance of the door panel. In another preferred embodiment, the mounting groove 3 after the main body 1 and the sub-body 2 are encapsulated is subjected to vacuum treatment to form a vacuum layer, which significantly reduces heat conduction, improves the thermal insulation efficiency of the door panel, and slows down the degradation rate of the functional effects of the thermal insulation coating 5 and the polyurethane foam 6.

[0024] 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 illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] 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 with a built-in reinforcing structure, comprising a main body (1) and a sub-body (2), wherein the sub-body (2) is fitted and installed with the main body (1), characterized in that: The main body (1) has a mounting groove (3), and a wave-shaped reinforcing plate (4) is installed in the mounting groove (3). Both sides of the reinforcing plate (4) are coated with a thermal insulation coating (5). Foamed polyurethane (6) is attached to both sides of the reinforcing plate (4). The sub-plate (2) tightly encapsulates the foamed polyurethane (6) and the reinforcing plate (4) in the mounting groove (3). The sides of the main body (1) and the sub-plate (2) are also coated with the thermal insulation coating (5).

2. The composite door panel with built-in reinforcing structure according to claim 1, characterized in that: The reinforcing plate (4) is a continuous corrugated structure plate formed by the undulating connection of multiple regularly arranged trapezoidal plates, and the heat-insulating coating is applied to both corrugated surfaces of the reinforcing plate (4).

3. The composite door panel with built-in reinforcing structure according to claim 2, characterized in that: The reinforcing plate (4) is fixedly installed in the mounting groove (3) by fasteners.

4. The composite door panel with built-in reinforcing structure according to claim 3, characterized in that: The foamed polyurethane (6) is attached between the reinforcing plate (4) and the main body (1), and the foamed polyurethane (6) is attached between the reinforcing plate (4) and the sub-plate (2).

5. The composite door panel with built-in reinforcing structure according to claim 1, characterized in that: The main board (1) has an annular groove (7) near its side, and the side of the sub-board (2) has an annular protrusion (8) that fits into the annular groove (7); the main board (1) and the sub-board (2) are fixedly connected by fasteners.

6. The composite door panel with built-in reinforcing structure according to claim 5, characterized in that: A sealing ring is provided between the annular groove (7) and the mating wall of the annular protrusion (8).

7. The composite door panel with built-in reinforcing structure according to claim 6, characterized in that: The outer surfaces of the main board (1) and the sub-board (2) are also coated with the thermal insulation coating (5).

8. The composite door panel with built-in reinforcing structure according to claim 4, characterized in that: Vacuum the mounting slot (3) after the main board (1) and the sub-board (2) are encapsulated.

9. The composite door panel with built-in reinforcing structure according to claim 1, characterized in that: The thermal insulation coating (5) is a polyurethane thermal insulation coating or a phenolic resin thermal insulation coating.

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