A multi-layer laminate with anti-penetration function

Abstract

The invention discloses a multi-sandwich veneer board with an anti-penetration function, comprising a board core layer, an outer waterproof layer, an inner waterproof layer and a water-absorbing color-changing indicator rod. The invention temporarily stores the seepage water on the back of the board through a water storage cavity formed between the outer waterproof layer, the waterproof breathable layer and the wall, and isolates the liquid water from penetrating into the inside through the waterproof breathable layer. The liquid water droplets isolated in the water storage cavity by the waterproof breathable layer cannot adhere to the inner hydrophobic coating on the back of the waterproof breathable layer, but can only roll down quickly and contact the water-absorbing rods around. The water-absorbing rods absorb water and quickly spread it to the water-absorbing color-changing indicator rods. The water-absorbing color-changing indicator rods change color after absorbing water. At this time, the user can intuitively see the color change of the water-absorbing color-changing indicator rod through the transparent waterproof layer, thereby timely understanding the water seepage phenomenon of the board, facilitating the user to carry out remedial treatment at the first time, and reducing the loss caused by the water seepage.

Description

Technical Field

[0001] The invention relates to the technical field of veneer boards, and more particularly to a multi-layer veneer board with an anti-penetration function. Background Art

[0002] Multi-layer veneer is a high-performance building material made with advanced composite technology. It forms an overall structure with multiple characteristics by precisely stacking and firmly bonding multiple layers of materials with different functions. This design not only improves the basic physical properties of the board, such as strength and stability, but also gives it special protective and functional characteristics, making it suitable for a variety of usage scenarios. In order to avoid moisture penetrating into the interior and causing problems such as moisture and mold growth, the veneer is usually treated with anti-penetration treatment to protect the health of the occupants and improve living comfort.

[0003] Existing multi-panel panels often have a special waterproof layer added to their outer surface to prevent moisture penetration, and are carefully sealed at the edges and joints of the panels, using sealing strips, sealants or waterproof tapes to ensure that no moisture can penetrate through the gaps between the panels, keeping the structure dry.

[0004] In actual use of the prior art, since the multi-panel can effectively block the direct penetration of external moisture through the waterproof layer during use, the humid water vapor and moisture between the back side and the wall cannot be effectively removed. Long-term moisture can easily lead to structural decay, affecting the strength and life of the material. In view of the above technical problems, it is necessary to provide a multi-layer sandwich panel with anti-penetration function. Summary of the invention

[0005] The object of the present invention is to provide a multi-layer laminate with anti-penetration function to solve the above-mentioned problems.

[0006] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0007] A multi-layer veneer with an anti-penetration function comprises a core layer, an outer waterproof layer, an inner waterproof layer and a water-absorbing color-changing indicator rod, wherein two outer plates are symmetrically fixedly connected to the outer surface of the core layer, the outer waterproof layer is located on the outer surface of the outer plate, the outer surface of the outer waterproof layer is coated with an outer hydrophobic coating, a semi-groove is provided in the inner cavity at the lower end of the outer waterproof layer, the inner waterproof layer is located on the lower surface of the outer plate, a waterproof and breathable layer is fixedly connected to the inner cavity of the outer waterproof layer, the lower surface of the waterproof and breathable layer is coated with an inner hydrophobic coating, a communicating channel is formed between the inner waterproof layer and the waterproof and breathable layer, the water-absorbing color-changing indicator rod is located in the inner cavity of the outer waterproof layer, a water-absorbing rod is fixedly connected to the lower end of the water-absorbing color-changing indicator rod, and the lower surface of the water-absorbing color-changing indicator rod is coated with hydrosol.

[0008] As a further improvement of the present invention, a plurality of bridge holes are opened in the inner cavity of the board core layer, and the outer layer board is glued to the outer surface of the board core layer by glue. The board core layer serves as the basic supporting structure, and the bridge hole design imitates the arch bridge structure in nature according to the bridge hole mechanics board, which can increase the strength and stability of the board, while facilitating air circulation and moisture management and reducing the overall weight. The outer layer board serves as the outer protective layer of the board core layer and can preliminarily protect the board core layer from damage.

[0009] As a further improvement of the present invention, the outer waterproof layer is made of waterproof material, and the outer waterproof layer cooperates with the waterproof breathable layer to form a water storage cavity. The outer waterproof layer made of waterproof material further enhances the anti-penetration ability, and the water storage cavity is designed to temporarily store and guide external moisture to prevent direct penetration into the interior.

[0010] As a further improvement of the present invention, the outer waterproof layer is adhered to the outer surface of the outer layer board and the core layer by glue, a plurality of arc-shaped protrusions are arranged on the upper surface of the outer waterproof layer, and the glue integrally formed with the outer waterproof layer is used as an adhesive between the plates to ensure that the outer waterproof layer and the outer layer board are firmly connected, and the arc-shaped protrusions on the outer surface of the outer waterproof layer can prevent water droplets from accumulating and can flow away quickly along the slope.

[0011] As a further improvement of the present invention, the upper surface of the inner waterproof layer is adhered to the lower surface of the outer layer plate by glue, and a plurality of arc-shaped protrusions are arranged on the outer surface of the inner waterproof layer. The waterproof and breathable layer is in a continuous S-curve shape. The channel between the inner waterproof layer and the waterproof and breathable layer is in a continuous elliptical shape. The inner waterproof layer serves as the inner waterproof barrier of the outer layer plate to prevent water vapor from penetrating the wall and the ground. At the same time, the continuous elliptical channel between the inner waterproof layer and the waterproof and breathable layer can ensure air flow and ensure that water vapor is dissipated. The inner waterproof layer can prevent moisture from further dissipating inwardly. The waterproof and breathable layer can isolate liquid water, separate liquid water in the air, and prevent water from penetrating inwardly. The surface of the S-curve-shaped waterproof and breathable layer has a continuous slope, and liquid water will flow away along the slope.

[0012] As a further improvement of the present invention, the channel is connected to the bridge hole, the inner waterproof layer is made of waterproof material, the waterproof breathable layer is made of waterproof breathable material, the channel is connected to the bridge hole, the internal air can flow quickly, reducing the accumulation of water vapor inside the structure, and indirectly improving the anti-permeability performance.

[0013] As a further improvement of the present invention, the upper surface of the water-absorbing color-changing indicator rod is coated with a transparent waterproof layer, and the transparent waterproof layer is made of a transparent waterproof material. The inner cavity of the outer layer board is provided with a plurality of water-absorbing cavities. The transparent waterproof layer on the upper surface of the water-absorbing color-changing indicator rod can help the user to intuitively see the condition of the water-absorbing color-changing indicator rod, while preventing water from entering from the surface and affecting the judgment result. The water-absorbing cavity can be used as an installation place for the water-absorbing indicator rod, and can also be used as an air input channel to promote air flow at the bottom of the board.

[0014] As a further improvement of the present invention, the water-absorbing color-changing indicator rod and the water-absorbing rod move in the water-absorbing cavity, the water-absorbing color-changing indicator rod is adhered to the inner cavity of the outer waterproof layer through hydrosol, the water-absorbing color-changing indicator rod changes color when the water-absorbing rod absorbs water, and the water-absorbing color-changing indicator rod stands firmly inside the outer waterproof layer through the hydrosol to avoid falling off.

[0015] As a further improvement of the present invention, the water absorption rod is made of water-absorbing material, and the lower end of the water absorption rod is located inside the water storage chamber. Once the water absorption rod made of water-absorbing material comes into contact with water, it quickly absorbs water and spreads it to the top. Half of the outer surface of the lower end of the water absorption rod is exposed to the inside of the water storage chamber, and contacts and absorbs the water in the water storage chamber.

[0016] As a further improvement of the present invention, the water-absorbing color-changing indicator rod is a hollow rod body, and the inner cavity of the water-absorbing color-changing indicator rod is fixedly connected to a magnetic suction component. The water-absorbing color-changing indicator rod is a round rod body with a hollow interior. The magnetic suction component is fixedly installed in the hollow interior as an adsorption element, and can be quickly adsorbed by a magnet and drive the water-absorbing color-changing indicator rod to be taken out.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution uses glue to stick the outer waterproof layer on the outer surface of the outer plate to protect the internal plate material. The outer waterproof layer can isolate the external water source and prevent water from penetrating into the inner part of the plate material. The outer surface of the outer waterproof layer is coated with an external hydrophobic coating, which makes it difficult for water droplets to spread on the surface of the material, effectively preventing the infiltration of water droplets and making the water droplets form spheres, rolling away quickly on the surface of the outer waterproof layer with arc-shaped protrusions to prevent water from gathering and penetrating. Then, the inner waterproof layer is glued to the lower surface of the outer plate, and the inner waterproof layer prevents water from entering the interior. The plate material is fully wrapped to protect it and improve the anti-penetration effect.

[0019] (2) This solution temporarily stores the seepage water on the back of the board through the water storage cavity formed between the outer waterproof layer, the waterproof breathable layer and the wall, and isolates the liquid water from penetrating into the interior through the waterproof breathable layer. The liquid water droplets isolated in the water storage cavity by the waterproof breathable layer cannot adhere to the inner hydrophobic coating on the back of the waterproof breathable layer, and can only roll down quickly and contact the water absorption rods on all sides. The water absorption rods absorb water and quickly spread it to the water absorption color change indicator rod. The water absorption color change indicator rod will change color after absorbing water. At this time, the user can intuitively see the color change of the water absorption color change indicator rod through the transparent waterproof layer, so as to timely understand the water seepage phenomenon of the board, so that the user can take remedial measures at the first time and reduce the losses caused by water seepage.

[0020] (3) In this scheme, when only a part of the water-absorbing color-changing indicator rod changes color and the water seepage is relatively light, the hydrosol on the lower surface of the water-absorbing color-changing indicator rod that changes color when in contact with water will lose its viscosity after coming into contact with water. The user uses a magnet to absorb the magnetic suction part inside the water-absorbing color-changing indicator rod, thereby easily and quickly taking out the water-absorbing color-changing indicator rod and the water-absorbing rod. At this time, the water absorption cavity is an empty cavity. The operator uses an external blowing tool to blow air into the water absorption cavity to promote air flow in the channel, bridge hole and water storage cavity, accelerate the evaporation of water vapor and water droplets, and effectively discharge the water vapor behind the board, thereby reducing the risk of mildew and structural damage, and also reducing the tedious operation and loss caused by disassembling the board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the present invention when viewed from above;

[0023] Figure 3 A half-section schematic diagram of the internal structure of the present invention;

[0024] Figure 4 It is a side-section schematic diagram of the internal structure of the present invention;

[0025] Figure 5 For the present invention Figure 4 -A schematic diagram of the enlarged structure;

[0026] Figure 6 It is a schematic diagram of the local structure of the present invention.

[0027] Description of the numbers in the figure:

[0028] 1. Board core layer; 101. Bridge hole; 102. Outer board; 2. Outer waterproof layer; 201. Outer hydrophobic coating; 202. Half-groove; 203. Water storage cavity; 3. Inner waterproof layer; 301. Waterproof breathable layer; 3011. Inner hydrophobic coating; 302. Channel; 4. Water-absorbing color-changing indicator rod; 401. Water-absorbing rod; 402. Transparent waterproof layer; 403. Hydrosol; 404. Water-absorbing cavity; 405. Magnetic element. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] See also Figure 1-4 , a multi-layer laminate with anti-penetration function, comprising a core layer 1, an outer waterproof layer 2, an inner waterproof layer 3 and a water-absorbing color-changing indicator rod 4, wherein two outer layers 102 are symmetrically fixedly connected to the outer surface of the core layer 1;

[0032] Specifically, a plurality of bridge holes 101 are opened in the inner cavity of the board core layer 1, and the outer layer board 102 is adhered to the outer surface of the board core layer 1 by glue.

[0033] Furthermore, the core layer 1 serves as the basic supporting structure, and the bridge hole 101 draws on the mechanical principles of the arch bridge based on the bridge hole mechanics board. The internal structure can evenly disperse the external force, reduce the deformation problem caused by uneven force, and make the board more stable and durable. At the same time, it helps air circulation and moisture management, reduces the overall weight, and the outer layer 102 provides preliminary protection for the core layer 1.

[0034] Embodiment 2:

[0035] See also Figure 1-4 The outer waterproof layer 2 is located on the outer surface of the outer plate 102 , the outer surface of the outer waterproof layer 2 is coated with an outer hydrophobic coating 201 , and a semi-open groove 202 is opened in the inner cavity at the lower end of the outer waterproof layer 2 .

[0036] Specifically, the outer waterproof layer 2 is made of waterproof material, and cooperates with the waterproof breathable layer 301 to form a water storage cavity 203. The outer waterproof layer 2 is glued to the outer surface of the outer layer board 102 and the core layer 1 by glue. The upper surface of the outer waterproof layer 2 is provided with multiple arc-shaped protrusions, and is integrally formed with the outer waterproof layer 2.

[0037] Furthermore, the outer waterproof layer 2 is glued and wrapped around the outer surface of the outer layer board 102 by glue to protect the internal board material and isolate the external water source to prevent water from penetrating into the interior of the board material. The outer waterproof layer 2 is made of waterproof material, such as asphalt-based waterproof coating, polymer-modified asphalt waterproof coating, synthetic polymer waterproof coating. Users can choose according to actual conditions. This type of material is constructed in the form of a coating and forms a continuous waterproof membrane layer after drying. It is suitable for various complex base surfaces and has good elasticity and durability.

[0038] The outer surface of the outer waterproof layer 2 is coated with an outer hydrophobic coating 201. The outer hydrophobic coating 201 is characterized in that the surface is covered with micron-level papillary structures and finer nanostructures. Micron and nanometer-level rough structures are often constructed on the surface of the material through chemical deposition, photolithography technology, electrodeposition and other methods to simulate the fine structure of the lotus leaf surface. The air layer formed between these structures can effectively prevent the infiltration of water droplets, so that the water droplets form a sphere, making it difficult for the water droplets to spread on the surface of the material, thereby rolling down quickly. The surface of the outer waterproof layer 2 with arc-shaped protrusions has a certain slope. Water falling on it will roll away quickly along the slope to prevent water from gathering and infiltration. The semi-open groove 202 is set to communicate with the water storage cavity 203, and is used to temporarily store water that penetrates from the bottom of the board to prevent direct infiltration into the interior.

[0039] Embodiment 3:

[0040] See also Figure 1-5 The inner waterproof layer 3 is located on the lower surface of the outer plate 102, the inner cavity of the outer waterproof layer 2 is fixedly connected with a waterproof and breathable layer 301, the lower surface of the waterproof and breathable layer 301 is coated with an inner hydrophobic coating 3011, and a connecting channel 302 is formed between the inner waterproof layer 3 and the waterproof and breathable layer 301.

[0041] Specifically, the upper surface of the inner waterproof layer 3 is glued to the lower surface of the outer layer plate 102 by glue, a plurality of arc-shaped protrusions are arranged on the outer surface of the inner waterproof layer 3, the waterproof and breathable layer 301 is in a continuous S-curve shape, the channel 302 between the inner waterproof layer 3 and the waterproof and breathable layer 301 is in a continuous elliptical shape, the channel 302 is connected to the bridge hole 101, the inner waterproof layer 3 is made of waterproof material, and the waterproof and breathable layer 301 is made of waterproof and breathable material.

[0042] Furthermore, the inner waterproof layer 3 is used to prevent water from entering the interior. The inner waterproof layer 3 is made of waterproof material, which is suitable for waterproofing various complex base surfaces and has good elasticity and durability. When the board is in use, its back will be close to the wall or the ground. At this time, a water storage cavity 203 is formed between the waterproof and breathable layer 301 and the wall to temporarily store the infiltrated water source. The waterproof and breathable layer 301 can isolate liquid water from penetrating into the interior. The waterproof and breathable layer 301 is made of a water-repellent and breathable material, such as a cement-based penetrating crystallization waterproof coating, a water-based waterproof coating or a new chemical reaction type synthetic resin water-based coating. This type of coating can exert its breathability in the presence of water. Its special mechanism allows water vapor to pass through, but prevents liquid water from penetrating. Therefore, it has a certain breathability, which promotes air flow while preventing liquid water from penetrating. Water penetrates into the interior, and at the same time, the inner waterproof layer 3 can prevent moisture from penetrating into the internal sheet material, keeping the interior of the structure dry, and the flowing gas flows between the channels 302. The channels 302 are continuous elliptical channels, which optimize the air permeability while maintaining the moisture-proof effect. The liquid water droplets isolated in the water storage cavity 203 by the waterproof and breathable layer 301 cannot adhere to the inner hydrophobic coating 3011 on the back of the waterproof and breathable layer 301. The surface of the outer hydrophobic coating 3011 constructs a rough structure at the micron and nanometer level on the surface of the material through chemical deposition, photolithography technology, electrodeposition and other methods to simulate the fine structure of the lotus leaf surface. The air layer formed between these structures can effectively prevent the infiltration of water droplets, so that the water droplets are spherical, making it difficult for the water droplets to spread on the surface of the material, so that they can only roll down quickly.

[0043] Embodiment 4:

[0044] See also Figure 1-6 The water-absorbing color-changing indicator rod 4 is located in the inner cavity of the outer waterproof layer 2 , the lower end of the water-absorbing color-changing indicator rod 4 is fixedly connected with a water-absorbing rod 401 , and the lower surface of the water-absorbing color-changing indicator rod 4 is coated with hydrosol 403 .

[0045] Specifically, the upper surface of the water-absorbing color-changing indicator rod 4 is coated with a transparent waterproof layer 402, and the transparent waterproof layer 402 is made of a transparent waterproof material. A plurality of water-absorbing cavities 404 are opened in the inner cavity of the outer layer plate 102. The water-absorbing color-changing indicator rod 4 and the water-absorbing rod 401 move in the water-absorbing cavity 404. The water-absorbing color-changing indicator rod 4 is adhered to the inner cavity of the outer waterproof layer 2 by means of a hydrosol 403. The water-absorbing rod 401 is made of a water-absorbing material, and the lower end of the water-absorbing rod 401 is located inside the water storage cavity 203. The water-absorbing rod 401 is made of a water-absorbing material, and the lower end of the water-absorbing rod 401 is located inside the water storage cavity 203.

[0046] Furthermore, the water absorption rod 401 absorbs the water temporarily gathered on the back of the board and quickly spreads it to the water absorption color changing indicator rod 4. The water absorption rod 401 is made of water absorption material, such as polymer water absorption material, silica gel water absorption material, super absorbent resin, etc., and has excellent water absorption and water retention. The absorbed water can quickly spread and be transported to the water absorption color changing indicator rod 4 on the top. The water absorption color changing indicator rod 4 will change color after absorbing water. The water absorption color changing indicator rod 4 is made of water absorption color changing material, such as color changing silica gel, hygroscopic dye, color changing polymer, cobalt-containing compound, etc. After absorbing water, the internal color changing agent changes to bright colors such as blue or red, which is convenient for quick identification. The user can automatically select the appropriate color according to the actual situation for prompting.

[0047] At this time, the user can intuitively see the color change of the water absorption color change indicator rod 4 through the transparent waterproof layer 402. The transparent waterproof layer 402 can intuitively understand the changes of the water absorption color change indicator rod 4, and the transparent waterproof layer 402 can protect the top of the water absorption color change indicator rod 4 to prevent external water sources from contacting and changing color, which affects the judgment result. The transparent waterproof layer 402 is made of transparent waterproof material, such as a coating with waterproof function made of transparent resin material, or it can be a water retaining sheet made of transparent plastic. The operator can choose according to the actual situation. By timely understanding the water seepage phenomenon of the board, it is convenient for the user to take remedial measures at the first time to reduce the losses caused by water seepage.

[0048] When only a part of the water-absorbing color-changing indicator rod 4 changes color, it means that the water seepage is relatively light and only some water may have dripped into the joints of the plates. At this time, it is relatively time-consuming and loss-prone to remove all the plates. The user only needs to remove the water-absorbing color-changing indicator rod 4 that has changed color. The hydrosol 403 on the lower surface of the water-absorbing color-changing indicator rod 4 that has changed color due to contact with water will lose its viscosity after coming into contact with water (the user can package and sell them together by matching or giving away the hydrosol when selling the product. At the same time, the water-absorbing color-changing indicator rod 4 and the water-absorbing rod can also be sold separately or given as additional parts to provide users with replaceable new parts to promote sales). At this time, the user uses a magnet (the magnet can be provided to the user as a gift or as a separate part that can be purchased separately) to absorb the magnetic suction part 405 in the water-absorbing color-changing indicator rod 4, so as to easily and quickly take out the water-absorbing color-changing indicator rod 4 and the water-absorbing rod 401 as a whole, reducing the time and energy consumed in manual installation and disassembly.

[0049] When the water absorption cavity 404 is empty, the user blows air into the water absorption cavity 404 through an external blowing tool to promote air flow in the channel 302, the bridge hole 101 and the water storage cavity 203, accelerate the evaporation of water vapor and water droplets, optimize the air permeability, and effectively discharge the water vapor behind the board, thereby reducing the risk of mildew and structural damage, and also reducing the tedious operations and losses caused by disassembling the board.

[0050] Working principle: During the use of the device, the outer waterproof layer 2 is glued and wrapped on the outer surface of the outer plate 102 to protect the internal sheet material. The outer waterproof layer 2 can isolate the external water source to prevent water from penetrating into the interior of the sheet material. The outer surface of the outer waterproof layer 2 is coated with an outer hydrophobic coating 201, which makes it difficult for water droplets to spread on the surface of the material, effectively preventing the infiltration of water droplets, and making the water droplets form spherical shapes, which roll away quickly on the surface of the outer waterproof layer 2 with arc-shaped protrusions to prevent water from gathering and penetrating.

[0051] The inner waterproof layer 3 is attached to the lower surface of the outer plate 102 by glue, and the inner waterproof layer 3 prevents water from entering the interior. A water storage cavity 203 is formed between the outer waterproof layer 2, the waterproof breathable layer 301 and the wall. When there is water vapor or water leakage on the wall or the ground, the waterproof breathable layer 301 can prevent liquid water from penetrating into the interior, and the inner waterproof layer 3 can prevent moisture from penetrating into the internal sheet material. The gas flows between the channels 302, and the liquid water droplets isolated in the water storage cavity 203 by the waterproof breathable layer 301 cannot adhere to the inner hydrophobic coating 3011 on the back of the waterproof breathable layer 301, and can only roll down quickly.

[0052] When water contacts the water absorbing rods 401 around, the water absorbing rods 401 absorb water and quickly spread it to the water absorbing color changing indicator rods 4. After absorbing water, the water absorbing color changing indicator rods 4 change color. At this time, the user can directly see the color change of the water absorbing color changing indicator rods 4 through the transparent waterproof layer 402, so as to timely understand the water seepage phenomenon of the board, which is convenient for the user to take remedial measures in the first time and reduce the loss caused by the water seepage. When only a part of the water absorbing color changing indicator rods 4 changes color, the user only needs to remove the water absorbing color changing indicator rods 4. The hydrosol 403 on the lower surface of the colored water-absorbing color-changing indicator rod 4 will lose its viscosity after contacting water. At this time, the user uses a magnet to absorb the magnetic suction part 405 in the water-absorbing color-changing indicator rod 4, so as to easily and quickly take out the water-absorbing color-changing indicator rod 4 and the water-absorbing rod 401. At this time, the water absorption cavity 404 is a cavity. The operator uses an external blowing tool to blow air into the water absorption cavity 404 to promote air flow in the channel 302, the bridge hole 101 and the water storage cavity 203, accelerate the evaporation of water vapor and water droplets, and effectively discharge the water vapor behind the plate.

[0053] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0054] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A multi-layer laminate with anti-penetration function, characterized in that: include: A board core layer (1), wherein two outer layer boards (102) are symmetrically fixedly connected to the outer surface of the board core layer (1); An outer waterproof layer (2), the outer waterproof layer (2) being wrapped around the outer surface of the outer plate (102), the outer surface of the outer waterproof layer (2) being coated with an outer hydrophobic coating (201), and a semi-open groove (202) being provided in the inner cavity at the lower end of the outer waterproof layer (2); An inner waterproof layer (3), wherein the upper surface of the inner waterproof layer (3) is glued to the lower surface of the outer layer plate (102) located at the lower layer by glue, the inner cavity of the outer waterproof layer (2) is fixedly connected with a waterproof breathable layer (301), the lower surface of the waterproof breathable layer (301) is coated with an inner hydrophobic coating (3011), a communicating channel (302) is formed between the inner waterproof layer (3) and the waterproof breathable layer (301), the outer waterproof layer (2) is made of a waterproof material, the outer waterproof layer (2) cooperates with the waterproof breathable layer (301) to form a water storage cavity (203), the outer surface of the inner waterproof layer (3) is provided with a plurality of arc-shaped protrusions, the waterproof breathable layer (301) is in a continuous S-bend shape, and the channel (302) between the inner waterproof layer (3) and the waterproof breathable layer (301) is in a continuous elliptical shape; A water-absorbing color-changing indicator rod (4), the water-absorbing color-changing indicator rod (4) is located in the inner cavity of the outer waterproof layer (2), the lower end of the water-absorbing color-changing indicator rod (4) is fixedly connected to a water-absorbing rod (401), the lower surface of the water-absorbing color-changing indicator rod (4) is coated with a hydrosol (403), the upper surface of the water-absorbing color-changing indicator rod (4) is coated with a transparent waterproof layer (402), the transparent waterproof layer (402) is made of a transparent waterproof material, and the inner cavity of the outer waterproof layer (2) is provided with a plurality of water-absorbing cavities (401). 4), the water absorbing color changing indicator rod (4) and the water absorbing rod (401) move in the water absorbing cavity (404), the water absorbing color changing indicator rod (4) is adhered to the inner cavity of the outer waterproof layer (2) by means of the hydrosol (403), the water absorbing rod (401) is made of a water absorbing material, the lower end of the water absorbing rod (401) is located inside the water storage cavity (203), the water absorbing color changing indicator rod (4) is a hollow rod body, and the inner cavity of the water absorbing color changing indicator rod (4) is fixedly connected with a magnetic attraction member (405).

2. The multi-layer laminate with anti-permeability function according to claim 1, characterized in that: The inner cavity of the board core layer (1) is provided with a plurality of bridge holes (101), and the outer layer board (102) is adhered to the outer surface of the board core layer (1) by glue.

3. The multi-layer laminate with anti-permeability function according to claim 1, characterized in that: The outer waterproof layer (2) is adhered to the outer surface of the outer plate (102) and the core layer (1) by glue, and a plurality of arc-shaped protrusions are provided on the upper surface of the outer waterproof layer (2), and are integrally formed with the outer waterproof layer (2).

4. The multi-layer laminate with anti-permeability function according to claim 1, characterized in that: The passage (302) is connected to the bridge hole (101); the inner waterproof layer (3) is made of a waterproof material; and the waterproof and breathable layer (301) is made of a waterproof and breathable material.

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