Foam board with good moisture resistance

Abstract

The utility model provides a cystosepiment with good moisture-proof performance, which belongs to the technical field of cystosepiments and comprises a cystosepiment body, a moisture-proof layer is arranged on the surface of the cystosepiment body, a drainage structure is arranged in the moisture-proof layer, and the drainage structure comprises a water guide component and a drainage collection component. The water guiding assembly comprises a plurality of water guiding channels, the drainage collecting assembly comprises a collecting groove and a drainage pipe, the tail ends of the water guiding channels communicate with the collecting groove, the drainage pipe is longitudinally arranged along the edge of the foam board and is in through connection with the collecting groove, and a protection assembly is arranged on the peripheral side of the foam board body. According to the device, through the arrangement of a double-layer structure of the damp-proof layer, the outer water absorption layer can absorb external moisture, and the inner HDPE film water-resisting layer prevents the moisture from further permeating into the foam board body.

Description

Technical Field

[0001] This utility model belongs to the field of foam board technology, and more specifically, it relates to a foam board with excellent moisture-proof performance. Background Technology

[0002] In the field of building thermal insulation, foam boards are a commonly used insulation material, widely applied to building walls, roofs, and other parts to facilitate good thermal insulation and reduce building energy consumption. However, when foam boards are in a humid environment, they absorb moisture and cannot expel it promptly, leading to moisture buildup inside. This accelerates the aging and damage of the foam boards. Furthermore, traditional foam boards have a simple single-layer foam structure, which cannot effectively block external moisture, making them susceptible to moisture damage in humid environments, affecting product quality and reducing the reliability of the foam boards. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a foam board with excellent moisture-proof performance, which solves the technical problem that in the prior art, traditional foam boards are simple single-layer foam structures that cannot block external moisture, causing products to be easily damaged by moisture in humid environments.

[0004] The purpose and effect of this utility model of a foam board with excellent moisture-proof performance are achieved by the following specific technical means:

[0005] A foam board with excellent moisture-proof performance includes a foam board body, a moisture-proof layer on the surface of the foam board body, and a drainage structure within the moisture-proof layer. The drainage structure includes a water guiding component and a drainage collection component. The water guiding component includes multiple water guiding channels, and the drainage collection component includes a collection trough and a drain pipe. The end of each water guiding channel is connected to the collection trough, and the drain pipe is longitudinally arranged along the edge of the foam board and is connected to the collection trough. A protective component is provided around the periphery of the foam board body.

[0006] According to a preferred embodiment, the moisture-proof layer has a double-layer structure, with an outer absorbent layer and an inner waterproof layer. The absorbent layer is made of water-absorbing resin, and the waterproof layer is made of HDPE film.

[0007] According to a preferred embodiment, the water guiding channel is disposed within the water-absorbing layer, the cross-section of the water guiding channel is conical, the inner wall of the water guiding channel is provided with a hydrophobic coating, and adjacent water guiding channels are arranged in a honeycomb pattern.

[0008] According to a preferred embodiment, the collection tank is disposed at the bottom of the absorbent layer, the collection tank has a U-shaped structure, a filter screen is provided inside the tank, and a guide ramp is provided at the bottom of the collection tank.

[0009] According to a preferred embodiment, the drain pipe is disposed on one side of the foam board body, and a check valve is embedded in the outlet of the drain pipe.

[0010] According to a preferred embodiment, the protective component includes an edge banding strip and a sealing plate. The edge banding strip wraps around the foam board body, the drain pipe is located inside the edge banding strip, the sealing plate has a protrusion that forms a protective cavity, and the edge banding strip has a groove in which the protrusion is engaged.

[0011] According to a preferred embodiment, the edging strip is provided with mutually cooperating trapezoidal protrusions and dovetail grooves, and the connection between adjacent foam boards is provided with a connecting sleeve corresponding to the drain pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model utilizes a double-layer moisture-proof structure. The outer absorbent layer absorbs external moisture, while the inner HDPE membrane waterproof layer prevents further penetration of moisture into the foam board, providing users with a more reliable moisture-proof effect and improving the device's moisture-proof performance. After the absorbent layer absorbs moisture, the user can drain the accumulated water through the drainage structure consisting of a water channel, collection tank, and drain pipe. This eliminates concerns about the impact of moisture accumulation on the foam board's performance and extends the device's lifespan in humid environments.

[0014] 2. When using this device, users can protect the edges of the foam board body using the protective assembly composed of edge banding strips and sealing plates, making the foam board less prone to damage during handling and installation, thus improving the durability of the device. Furthermore, the interlocking trapezoidal protrusions and dovetail grooves on the edge banding strips at the joints of adjacent foam boards, along with the corresponding mating sleeves, allow for convenient and quick assembly. The drainage pipe connection at the joints prevents water leakage, providing convenience to users and improving the installation efficiency and overall sealing of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of region a in the middle;

[0018] Figure 4 yes Figure 2 Enlarged view of region b in the middle;

[0019] Figure 5 This is a schematic diagram of the water-absorbing layer structure of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 11. Foam board body; 12. Filter screen; 13. Water-absorbing layer; 14. Waterproof layer; 15. Water guiding channel; 16. Collection tank; 17. Drain pipe; 18. Check valve plate; 19. Edge banding strip; 21. Protrusion; 22. Groove; 23. Trapezoidal protrusion; 24. Dovetail groove; 25. Connecting sleeve. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0023] Example:

[0024] like Figures 1 to 5 As shown, this utility model provides a foam board with excellent moisture-proof performance, including a foam board body 11. A moisture-proof layer is provided on the surface of the foam board body 11. This moisture-proof layer prevents external moisture from entering the foam board body 11, improving its moisture-proof performance. A drainage structure is provided within the moisture-proof layer, including a water-guiding component and a drainage collection component. This drainage structure allows the device to promptly discharge moisture absorbed by the moisture-proof layer, improving the durability of its moisture-proof performance. The water-guiding component includes multiple water-guiding channels 15, and the drainage collection component includes a collection trough 16 and a drain pipe 17. The ends of the water-guiding channels 15 are connected to the collection trough 16, and the drain pipe 17 is longitudinally arranged along the edge of the foam board and connected to the collection trough 16. Through the arrangement of the water-guiding channels 15, the collection trough 16, and the drain pipe 17, the device can guide and discharge moisture in an orderly manner. Protective components are provided around the periphery of the foam board body 11. The protective components, consisting of the edge banding 19, the sealing plate, and related structures, enable the device to protect the edges of the foam board body 11 from damage, thereby improving the durability of the device.

[0025] like Figure 2 , 5 As shown, the moisture-proof layer has a double-layer structure: an outer absorbent layer 13 and an inner waterproof layer 14. The absorbent layer 13 is made of absorbent resin, and the waterproof layer 14 is made of HDPE film. (HDPE, Chinese name: high-density polyethylene, English name: high-density polyethylene) Through the arrangement of the absorbent layer 13 and the waterproof layer 14, the device can first absorb external moisture and then prevent moisture from further penetrating into the foam board body 11, thereby improving the moisture-proof reliability of the device.

[0026] Water guiding channels 15 are disposed within the water-absorbing layer 13. The cross-section of the water guiding channels 15 is conical, and the inner wall of the water guiding channels 15 is coated with a hydrophobic coating. Adjacent water guiding channels 15 are arranged in a honeycomb pattern. By setting up water guiding channels 15 with a conical structure, a hydrophobic coating on the inner wall, and a honeycomb pattern, the device can accelerate water flow using the conical structure and the hydrophobic coating, and collect water through the honeycomb arrangement, thereby improving the efficiency and uniformity of water guiding of the device. The hydrophobic coating can be made of polytetrafluoroethylene.

[0027] A collection tank 16 is located at the bottom of the absorbent layer 13. The collection tank 16 has a U-shaped structure, a filter screen 12 is installed inside the tank, and a flow guide ramp is provided at the bottom of the collection tank 16. Through the U-shaped structure, the filter screen 12 inside, and the flow guide ramp at the bottom of the collection tank 16, the device can collect water flowing down from the water guide channel 15, filter impurities, and use the flow guide ramp to accelerate drainage, thereby improving the device's ability to collect and discharge water.

[0028] like Figure 2 , 3 As shown in Figure 4, the drain pipe 17 is located on one side of the foam board body 11, and a check valve plate 18 is embedded in the outlet of the drain pipe 17. The check valve plate 18 prevents external moisture from flowing back into the foam board through the drain pipe 17, thereby improving the sealing and stability of the drainage system of the device.

[0029] The protective assembly includes an edge banding strip 19 and a sealing plate. The edge banding strip 19 wraps around the foam board body 11, and the drain pipe 17 is located inside the edge banding strip 19. The edge banding strip 19 protects the edge of the foam board body 11 while concealing and protecting the drain pipe 17, thus improving the overall protective performance of the device. The sealing plate has a protrusion 21 forming a protective cavity, and the edge banding strip 19 has a groove 22 in which the protrusion 21 is engaged. The protrusion 21 and groove 22 enhance the sealing seal between the sealing plate and the edge banding strip 19, further improving the protective effect and increasing the reliability of the device's protection.

[0030] The edge banding 19 has interlocking trapezoidal protrusions 23 and dovetail grooves 24, and the joints between adjacent foam boards are provided with connecting sleeves 25 corresponding to the drain pipe 17. The interlocking trapezoidal protrusions 23 and dovetail grooves 24, along with the connecting sleeves 25, allow the device to splice adjacent foam boards while ensuring the connection of the drain pipe 17, preventing water leakage and improving the ease of installation and overall sealing of the device.

[0031] The specific usage and function of this embodiment are as follows:

[0032] A moisture-proof layer is bonded to the surface of the foam board body 11, and its double-layer structure is in direct contact with the external environment. The outer absorbent layer 13 uses water-absorbing resin, which actively absorbs external moisture by utilizing the rich microporous structure of diatomaceous earth and the stability of polypropylene. The inner waterproof layer 14 is an HDPE film, which, with its excellent barrier properties, prevents the moisture absorbed by the absorbent layer 13 from further penetrating into the foam board body 11, thus comprehensively protecting the foam board body 11 from moisture, improving the moisture-proof performance of the foam board, and extending its service life. For example, in a humid basement environment, it can prevent moisture from penetrating the foam board and avoid the decline in thermal insulation performance caused by moisture. Multiple water-guiding channels 15 are arranged in a honeycomb pattern within the absorbent layer 13. When the absorbent layer 13 absorbs moisture, the moisture enters the water-guiding channels 15 under capillary action. The water channel 15 has a tapered cross-section and a hydrophobic coating on its inner wall. The tapered structure facilitates the rapid convergence of water into the collection tank 16, while the hydrophobic coating reduces water adhesion to the channel wall, accelerating the water flow and allowing water to be guided from the absorbent layer 13 to the collection tank 16. The collection tank 16, located at the bottom of the absorbent layer 13, has a U-shaped structure and collects the water converging from the water channel 15. A flow ramp at the bottom of the collection tank 16 guides the water flow to the drain pipe 17, while the filter screen 12 filters out impurities that may be carried by the water flow. The drain pipe 17 is longitudinally arranged along the edge of the foam board and connects to the collection tank 16, draining the water from the collection tank 16. The U-shaped collection tank 16 increases the water collection area, ensuring that all water flowing down from the water channel 15 can be collected. The flow ramp accelerates the flow of water to the drain pipe 17, and the filter screen 12 prevents impurities from clogging the drain pipe 17, ensuring the smooth operation of the drainage system. Drain pipe 17 drains water from the foam board, preventing water accumulation inside and further improving the foam board's moisture-proof durability and maintaining its good performance. For example, in continuous rainy weather, after a large amount of water vapor is absorbed by the absorbent layer 13, the drainage structure can drain the water, preventing the foam board from being damaged by water accumulation. A check valve 18 is embedded at the outlet of drain pipe 17. When the water level in the collection tank 16 reaches a certain height, the water pressure pushes the valve to open, and water is discharged; when the external water pressure is higher than the internal water pressure, the valve closes. Check valve 18 prevents external moisture from flowing back into the foam board through drain pipe 17, ensuring the sealing and stability of the drainage system and maintaining the moisture-proof effect of the foam board. For example, in environments with standing water on the ground, check valve 18 can prevent water from flowing back into the foam board. An edge strip 19 wraps around the perimeter of the foam board body 11, concealing the drain pipe 17 within it. On the one hand, it protects the edges of the foam board body 11 from physical damage such as collisions and friction; on the other hand, it protects the drain pipe 17 from damage caused by external forces, thus improving the durability of the foam board. For example, during the handling of the foam board, the edge banding strip 19 can prevent the edges of the foam board from breaking. The sealing plate is secured in the groove 22 of the edge banding strip 19 by the protrusion 21, forming a protective cavity.The sealing performance of the connection between the sealing board and the edge strip 19 is enhanced, further preventing external moisture and dust from entering the foam board, improving the protective effect and reliability. For example, in dusty industrial environments, it can prevent dust from entering the interior of the foam board and affecting its performance. During installation, the edge strips 19 of adjacent foam boards are spliced ​​together through the cooperation of trapezoidal protrusions 23 and dovetail grooves 24. This makes the splicing of adjacent foam boards convenient and quick, preventing moisture leakage from the splice and improving installation convenience and overall sealing performance. For example, in large-scale building insulation projects, foam boards can be installed quickly, ensuring that the moisture-proof performance of the entire insulation structure is not affected by the splicing. At the same time, the drainage pipes 17 of adjacent foam boards are connected through the butt sleeves 25, further ensuring the integrity and sealing of the drainage system.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A foam board having excellent moisture resistance, comprising a foam board body (11), characterized by: The surface of the foam board body (11) is provided with a moisture-proof layer, and a drainage structure is provided inside the moisture-proof layer. The drainage structure includes a water guiding component and a drainage collection component. The water guiding component includes multiple water guiding channels (15), and the drainage collection component includes a collection trough (16) and a drain pipe (17). The end of the water guiding channel (15) is connected to the collection trough (16), and the drain pipe (17) is arranged longitudinally along the edge of the foam board and is connected through the collection trough (16). A protective component is provided around the periphery of the foam board body (11).

2. The foam board with good moisture resistance according to claim 1, characterized in that: The moisture-proof layer has a double-layer structure, with an outer layer of water-absorbing layer (13) and an inner layer of water-proof layer (14). The water-absorbing layer (13) is made of water-absorbing resin material, and the water-proof layer (14) is made of HDPE film.

3. The foam board with good moisture resistance according to claim 2, characterized in that: The water guiding channel (15) is disposed in the water-absorbing layer (13). The cross-section of the water guiding channel (15) is tapered. The inner wall of the water guiding channel (15) is provided with a hydrophobic coating. The adjacent water guiding channels (15) are arranged in a honeycomb pattern.

4. The foam board with good moisture resistance according to claim 3, characterized in that: The collection tank (16) is located at the bottom of the water-absorbing layer (13). The collection tank (16) has a U-shaped structure and a filter screen (12) is provided inside the tank. A guide ramp is provided at the bottom of the collection tank (16).

5. The moisture resistant foam board of claim 1, wherein: The drain pipe (17) is located on one side of the foam board body (11), and a check valve plate (18) is embedded in the outlet of the drain pipe (17).

6. The foam board with good moisture resistance according to claim 5, characterized in that: The protective component includes an edge banding strip (19) and a sealing plate. The edge banding strip (19) wraps around the foam board body (11). The drain pipe (17) is located inside the edge banding strip (19). The sealing plate has a protrusion (21) that forms a protective cavity. The edge banding strip (19) has a groove (22) that is engaged in the groove (22).

7. The foam board with good moisture resistance according to claim 6, characterized in that: The edge strip (19) is provided with trapezoidal protrusions (23) and dovetail grooves (24) that cooperate with each other, and the connection between adjacent foam boards is provided with a connecting sleeve (25) corresponding to the drain pipe (17).

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