A waterproof sealed polyurethane sandwich panel

Abstract

The utility model discloses a waterproof sealed polyurethane sandwich board, it includes: base plate, the base plate upper surface fixedly connected with sealing plate, the sealing plate top is provided with polyurethane core layer, polyurethane core layer top is provided with sealing cover, sealing cover upper surface fixedly connected with waterproof layer, waterproof layer upper surface fixedly connected with drainage layer, drainage layer upper surface fixedly connected with hydrophobic flow guiding layer, first connecting hole and second connecting hole are arranged on the drainage layer, the top of hydrophobic flow guiding layer is provided with flow guiding groove, the flow guiding groove inner bottom fixedly connected with flow guide plate. Through above device, through waterproof drainage function of multilayer, multiple path, the sealing plate of both ends and sealing cover close coordination, effectively prevent rainwater infiltration, top hydrophobic flow guiding layer gathers rainwater through flow guiding groove, and the water flow is guided to flow out smoothly through flow guide plate, avoids ponding.

Description

Technical Field

[0001] This utility model relates to the technical field of polyurethane sandwich panels, and in particular to a waterproof and sealed polyurethane sandwich panel. Background Technology

[0002] Polyurethane sandwich panels are a composite energy-saving building material widely used in industrial and civil buildings. They are mainly used in structures such as roofs, walls, cold storage, and clean rooms to prevent rainwater penetration and improve their sealing effect.

[0003] Existing polyurethane sandwich panel technologies mostly rely on simple metal cladding and foam core layers for waterproofing. However, this method has limited waterproofing performance, especially in high humidity or rainy areas, where water seepage is prone to occur at the joints. For example, Chinese patent disclosure "A Waterproof and Sealed Polyurethane Sandwich Panel" (application number CN202222428783.6) uses a combination design of water-blocking inner blocks and hydrophobic inner pads to effectively reduce water molecules penetrating into the interior of the polyurethane sandwich panel, thereby effectively reducing the probability of equipment being affected by water molecules. However, even with its waterproof sealing, water molecules remain inside and cannot be discharged in time. Prolonged direct water flow can lead to internal mold growth, affecting its service life. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a waterproof and sealed polyurethane sandwich panel. Through the close cooperation of the sealing plates and sealing caps at both ends, the rainwater infiltration path is effectively blocked, improving the overall waterproof and sealing performance. The drainage groove on the top hydrophobic drainage layer is used in conjunction with the drainage plate to quickly guide rainwater out and prevent water accumulation. The drainage layer at the bottom further enhances the drainage channel function, allowing water that has seeped into the drainage layer to be discharged in time through the first connection hole and the second connection hole, preventing water from entering the lower structure, thereby significantly improving the waterproof and durability performance of the panel under harsh weather conditions.

[0005] This utility model also provides a waterproof and sealed polyurethane sandwich panel, comprising: a substrate, a sealing plate fixedly connected to the upper surface of the substrate, a polyurethane core layer disposed above the sealing plate, and a sealing cap disposed above the polyurethane core layer; a waterproof layer fixedly connected to the upper surface of the sealing cap, a drainage layer fixedly connected to the upper surface of the waterproof layer, a hydrophobic guiding layer fixedly connected to the upper surface of the drainage layer, a first connecting hole and a second connecting hole disposed on the drainage layer, a guiding groove disposed at the top of the hydrophobic guiding layer, and a guiding plate fixedly connected to the bottom of the guiding groove. Through this device, with its multi-layered and multi-path waterproof drainage function, the sealing plates and sealing caps at both ends fit tightly together, effectively preventing rainwater infiltration. The top hydrophobic guiding layer collects rainwater through the guiding groove and guides the water flow smoothly out through the guiding plate, avoiding water accumulation.

[0006] According to the present invention, a waterproof and sealed polyurethane sandwich panel is provided, wherein the polyurethane core layer is a high-density closed-cell flame-retardant polyurethane foam material. Through this device, the overall performance of the panel is enhanced by improving the thermal insulation, structural strength, and fire resistance of the core material.

[0007] According to the present invention, a waterproof and sealed polyurethane sandwich panel is provided with a first metal panel and a second metal panel on the upper and lower sides of the polyurethane core layer, with the first metal panel located directly below the second metal panel. This device, by forming a sandwich structure, improves compressive and bending strength and enhances stability.

[0008] According to the present invention, a waterproof and sealed polyurethane sandwich panel is provided, wherein the lower surface of the first metal panel is bonded to the sealing plate, and a sealing layer is provided on the second metal panel, and the second metal panel and the sealing cover are connected through the sealing layer. This device achieves a tight structural connection, ensuring overall sealing performance and weather resistance.

[0009] According to the present invention, a waterproof and sealed polyurethane sandwich panel is provided, wherein both the first metal panel and the second metal panel are hot-dip galvanized color-coated steel sheets. This design provides excellent corrosion resistance and strength, extending service life.

[0010] According to the present invention, a waterproof and sealed polyurethane sandwich panel is provided, wherein the sealing layer is made of EPDM rubber and the waterproof layer is made of a polymer waterproof membrane. This device effectively resists moisture erosion, improves sealing performance, and enhances outdoor applicability.

[0011] According to the waterproof and sealed polyurethane sandwich panel of this utility model, both the first connecting hole and the second connecting hole penetrate the drainage layer, and the first connecting hole and the second connecting hole are connected. The second connecting hole is inclined. This device allows for rapid drainage of accumulated water, preventing rainwater retention and leakage.

[0012] According to the present invention, a waterproof and sealed polyurethane sandwich panel is provided, wherein the guide plate is inclined to both sides, and the guide groove extends laterally through the hydrophobic guide layer. This device efficiently guides water flow to both sides for discharge, preventing water accumulation on the panel.

[0013] Beneficial effects

[0014] Compared with existing technologies, this waterproof and sealed polyurethane sandwich panel effectively blocks the path of rainwater infiltration through the close cooperation of the sealing plates and sealing covers at both ends, improving the overall waterproof and sealing performance. The drainage groove on the top hydrophobic drainage layer works in conjunction with the drainage plate to quickly guide rainwater out and prevent water accumulation. The bottom drainage layer further enhances the drainage channel function, allowing water that has seeped into the drainage layer to be discharged in a timely manner through the first and second connecting holes, preventing moisture from entering the lower structure, thereby significantly improving the waterproof and durability performance of the panel under harsh weather conditions. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of the waterproof and sealed polyurethane sandwich panel of this utility model;

[0017] Figure 2 This utility model relates to a waterproof and sealed polyurethane sandwich panel. Figure 1 Internal structure diagram;

[0018] Figure 3 This utility model relates to a waterproof and sealed polyurethane sandwich panel. Figure 1 Internal sectional view;

[0019] Figure 4 For the waterproof and sealed polyurethane sandwich panel of this utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 For the waterproof and sealed polyurethane sandwich panel of this utility model Figure 3 Enlarged view of section B in the middle.

[0021] Legend:

[0022] 1. Substrate; 2. Sealing plate; 3. First metal panel; 4. Polyurethane core layer; 5. Second metal panel; 6. Sealing layer; 7. Sealing cap; 8. Waterproof layer; 9. Drainage layer; 10. Hydrophobic drainage layer; 11. First connecting hole; 12. Second connecting hole; 13. Drainage groove; 14. Drainage plate. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 3This utility model provides a waterproof and sealed polyurethane sandwich panel, comprising: a substrate 1, a sealing plate 2 fixedly connected to the upper surface of the substrate 1, a polyurethane core layer 4 disposed above the sealing plate 2, the polyurethane core layer 4 being a high-density closed-cell flame-retardant polyurethane foam material, a first metal panel 3 and a second metal panel 5 disposed on the upper and lower sides of the polyurethane core layer 4, the first metal panel 3 being located directly below the second metal panel 5, the lower surface of the first metal panel 3 being adhered to the sealing plate 2, a sealing adhesive layer 6 disposed on the second metal panel 5, both the first metal panel 3 and the second metal panel 5 being hot-dip galvanized color-coated steel plates, a sealing cover 7 disposed above the polyurethane core layer 4, the sealing cover 7 being a high-polymer waterproof membrane material, the second metal panel 5 and the sealing cover 7 being connected by the sealing adhesive layer 6, the sealing adhesive layer 6 being an EPDM rubber material;

[0025] Specifically, the lower sealing plate 2 and the upper waterproof layer 8 work together to form a closed protective structure, effectively preventing external rainwater from seeping in. The polyurethane core layer 4 is sandwiched between the first metal panel 3 and the second metal panel 5, providing good heat insulation, thermal insulation and structural support. The sealing cover 7 forms a waterproof barrier. The sealing adhesive layer 6 connects the second metal panel 5 and the sealing cover 7, improving the sealing performance.

[0026] Reference Figure 3 , Figure 4 , Figure 5 A waterproof layer 8 is fixedly connected to the upper surface of the sealing cap 7. A drainage layer 9 is fixedly connected to the upper surface of the waterproof layer 8. A hydrophobic guiding layer 10 is fixedly connected to the upper surface of the drainage layer 9. A first connecting hole 11 and a second connecting hole 12 are provided on the drainage layer 9. Both the first connecting hole 11 and the second connecting hole 12 penetrate the drainage layer 9 and are connected. The second connecting hole 12 is inclined. A guiding groove 13 is provided at the top of the hydrophobic guiding layer 10. A guiding plate 14 is fixedly connected to the bottom of the guiding groove 13. The guiding plate 14 is inclined and tilted to both sides. The guiding groove 13 penetrates the hydrophobic guiding layer 10 laterally.

[0027] Specifically, water flows along the guide groove 13 at the top of the drainage layer 10 and is quickly discharged to both sides under the guidance of the inclined guide plate 14 to prevent water accumulation; if excess water seeps into the drainage layer 9, it is promptly discharged through the internal first connecting hole 11 and the inclined second connecting hole 12 to ensure that the sandwich panel structure is dry, seepage-proof, and moisture-proof, significantly improving the overall waterproof sealing performance and weather resistance.

[0028] Working principle: In use, the lower sealing plate 2 and the upper waterproof layer 8 work together to form a closed protective structure, effectively blocking external rainwater from seeping in. The polyurethane core layer 4 is sandwiched between the first metal panel 3 and the second metal panel 5, providing good heat insulation, thermal insulation and structural support. The sealing cover 7 forms a waterproof barrier. Water flows along the drainage channel 13 at the top of the drainage layer 10 and is quickly discharged to both sides under the guidance of the inclined drainage plate 14 to prevent water accumulation. If excess water seeps into the drainage layer 9, it is discharged in time through the internal first connecting hole 11 and the inclined second connecting hole 12, ensuring that the sandwich panel structure is dry, seepage-proof and moisture-proof, significantly improving the overall waterproof sealing performance and weather resistance.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A waterproof and sealed polyurethane sandwich panel, characterized in that, include: A substrate (1) is fixedly connected to a sealing plate (2) on its upper surface. A polyurethane core layer (4) is disposed above the sealing plate (2), and a sealing cap (7) is disposed above the polyurethane core layer (4). A waterproof layer (8) is fixedly connected to the upper surface of the sealing cap (7). A drainage layer (9) is fixedly connected to the upper surface of the waterproof layer (8). A hydrophobic flow guiding layer (10) is fixedly connected to the upper surface of the drainage layer (9). A first connecting hole (11) and a second connecting hole (12) are provided on the drainage layer (9). A flow guiding groove (13) is provided on the top of the hydrophobic flow guiding layer (10). A flow guiding plate (14) is fixedly connected to the bottom of the flow guiding groove (13).

2. The waterproof and sealed polyurethane sandwich panel according to claim 1, characterized in that, The polyurethane core layer (4) is a high-density closed-cell flame-retardant polyurethane foam material.

3. The waterproof and sealed polyurethane sandwich panel according to claim 1, characterized in that, The polyurethane core layer (4) is provided with a first metal panel (3) and a second metal panel (5) on its upper and lower sides, with the first metal panel (3) located directly below the second metal panel (5).

4. The waterproof and sealed polyurethane sandwich panel according to claim 3, characterized in that, The lower surface of the first metal panel (3) is attached to the sealing plate (2), and a sealing layer (6) is provided on the second metal panel (5). The second metal panel (5) and the sealing cover (7) are connected through the sealing layer (6).

5. A waterproof and sealed polyurethane sandwich panel according to claim 3, characterized in that, Both the first metal panel (3) and the second metal panel (5) are hot-dip galvanized color-coated steel sheets.

6. A waterproof and sealed polyurethane sandwich panel according to claim 4, characterized in that, The sealant layer (6) is made of EPDM rubber, and the sealing cap (7) is made of polymer waterproof membrane.

7. A waterproof and sealed polyurethane sandwich panel according to claim 1, characterized in that, Both the first connecting hole (11) and the second connecting hole (12) penetrate the drainage layer (9), and the first connecting hole (11) and the second connecting hole (12) are connected. The second connecting hole (12) is inclined.

8. A waterproof and sealed polyurethane sandwich panel according to claim 1, characterized in that, The guide plate (14) is inclined, and the guide plate (14) is inclined to both sides. The guide groove (13) penetrates the hydrophobic guide layer (10) laterally.

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