Breathable anti-seepage blanket

Abstract

The utility model discloses a breathable anti-seepage blanket, relates to the technical field of seepage prevention, and aims to solve the problem that anti-seepage breathable particles between an upper breathable layer and a lower breathable layer of the breathable anti-seepage blanket are difficult to fix, so that the anti-seepage capability is poor. The breathable anti-seepage blanket comprises a first breathable cloth layer, an anti-seepage particle layer and a second breathable cloth layer. A packaging space formed by packaging the first breathable cloth layer and the second breathable cloth layer is filled with the anti-seepage particle layer, flexible fiber lines are sewn between the first breathable cloth layer and the second breathable cloth layer, the flexible fiber lines penetrate through the anti-seepage particle layer, and the packaging space is divided into net-shaped packaging spaces by the flexible fiber lines. And anti-seepage particles of the anti-seepage particle layer are fixed in the net-shaped packaging space through flexible fiber lines. The breathable anti-seepage blanket is used for fixing the breathable anti-seepage particles between the upper breathable layer and the lower breathable layer, so that the breathable anti-seepage particles are not prone to displacement, and the anti-seepage capacity of the breathable anti-seepage blanket is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of seepage prevention technology, and in particular to a breathable seepage prevention blanket. Background Technology

[0002] In water conservancy projects, the impermeability and environmental adaptability of materials directly affect the long-term stability of the project and the health of the surrounding ecosystem. Traditional impermeable materials, such as impermeable concrete and waterproof geomembranes, while possessing good waterproofing properties, lack breathability, hindering the exchange of airflow, matter, and energy between the water body and the soil. This not only adversely affects the aquatic ecosystem but also leads to problems such as oxygen deficiency in the bottom layer and accumulation of soil toxins, severely impacting the water body's self-cleaning and biological growth, and may even cause the water body to become black and smelly. As a new type of material, breathable impermeable blankets have shown broad application potential due to their excellent breathability and environmental friendliness. A breathable impermeable blanket consists of an upper breathable layer, a lower breathable layer, and a breathable impermeable sand layer sandwiched between them. Fixing the breathable impermeable sand layer between the upper and lower breathable layers to prevent displacement and form a blanket is crucial.

[0003] One existing type of breathable and seepage-proof blanket uses a grid partition layer between the upper and lower breathable layers to confine the breathable and seepage-proof sand within the grid partition layer, thus fixing the breathable and seepage-proof sand layer. However, because of the presence of the grid partition layer, this breathable and seepage-proof blanket is inconvenient to roll or fold, resulting in it only being transported by laying it flat, which limits its transportation methods and makes it inconvenient to transport. Utility Model Content

[0004] The purpose of this utility model is to provide a breathable and waterproof blanket that can fix the breathable and waterproof particles between the upper and lower breathable layers while facilitating transportation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A breathable and waterproof blanket, comprising:

[0007] A first breathable fabric layer, a seepage-proof granule layer, and a second breathable fabric layer; the seepage-proof granule layer fills the encapsulation space formed by the first and second breathable fabric layers, and a flexible fiber thread is sewn between the first and second breathable fabric layers. The flexible fiber thread penetrates the seepage-proof granule layer and divides the encapsulation space into a mesh encapsulation space. The seepage-proof granules of the seepage-proof granule layer are fixed in the mesh encapsulation space by the flexible fiber thread.

[0008] Optionally, in the above-mentioned breathable and waterproof blanket, the first breathable fabric layer and the second breathable fabric layer include polytetrafluoroethylene nonwoven fabric.

[0009] Optionally, in the above-mentioned breathable and waterproof blanket, the flexible fiber thread is nylon thread.

[0010] Optionally, in the above-mentioned breathable and waterproof blanket, the diameter of the flexible fiber thread is 0.10mm-0.20mm.

[0011] Optionally, in the above-mentioned breathable and waterproof blanket, the mesh encapsulation space is a square mesh encapsulation space.

[0012] Optionally, in the above-mentioned breathable and waterproof blanket, the side length of each square area of ​​the grid-like encapsulation space is 1cm-2cm.

[0013] Optionally, in the above-mentioned breathable and waterproof blanket, the shape of each cell area of ​​the mesh encapsulation space includes a circle, triangle, rhombus, pentagon or hexagon.

[0014] Optionally, in the above-mentioned breathable and impermeable blanket, each side of each cell area of ​​the mesh encapsulation space is formed by multiple flexible fiber lines arranged along the side length of the cell area, and the spacing between two adjacent flexible fiber lines is 0.3mm to 1mm.

[0015] Optionally, in the above-mentioned breathable and impermeable blanket, the mesh size of the impermeable particles in the impermeable particle layer is 70-200 mesh.

[0016] Optionally, in the above-mentioned breathable and seepage-proof blanket, the thickness of the breathable and seepage-proof blanket is 0.1cm-1cm.

[0017] Compared with existing technologies, the breathable and seepage-proof blanket provided by this invention features flexible fiber threads that penetrate the seepage-proof granule layer and connect with the upper and lower breathable fabric layers. This enhances the fit between the first breathable fabric layer, the seepage-proof granule layer, and the second breathable fabric layer, helping to maintain the integrity of the overall structure. Simultaneously, the flexible fiber threads sewn onto the breathable and seepage-proof blanket are distributed crisscrossingly on the surfaces of the first and second breathable fabric layers, applying pressure towards the seepage-proof granule layer. In the areas where the flexible fiber threads interact with the breathable fabric layer and the seepage-proof granule layer, the originally relatively loose flow channels of the particles narrow due to this pressure. When particles attempt to move within the seepage-proof granule layer, the narrow channels obstruct their movement, restricting their movement. Furthermore, the flexible fiber threads divide the encapsulation space formed by the first and second breathable fabric layers into a mesh-like encapsulation space. By fixing the seepage-proof granules of the seepage-proof granule layer within this mesh-like encapsulation space, the fixation effect on the particles is maintained, effectively ensuring the seepage-proof performance. Meanwhile, because the breathable and seepage-proof blanket uses flexible fiber threads to fix the seepage-proof particle layer, compared with the existing method of fixing with a mesh layer, the breathable and seepage-proof blanket of this application maintains its flexibility and can be rolled or folded. Therefore, it is not restricted by the mode of transportation and is convenient for transportation. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure of a breathable and waterproof blanket provided in an embodiment of this utility model;

[0020] Figure 2 This is a cross-sectional schematic diagram of a breathable and waterproof blanket provided in an embodiment of the present utility model.

[0021] Figure label:

[0022] 1 is the first breathable fabric layer, 2 is the impermeable granular layer, 3 is the second breathable fabric layer, and 4 is the flexible fiber thread. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., 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.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Please see Figure 1 The breathable and seepage-proof blanket provided in this embodiment of the utility model includes: a first breathable fabric layer 1, a seepage-proof particle layer 2, and a second breathable fabric layer 3; the seepage-proof particle layer 2 is filled in the encapsulation space formed by the first breathable fabric layer 1 and the second breathable fabric layer 3, and a flexible fiber thread 4 is sewn between the first breathable fabric layer 1 and the second breathable fabric layer 3. The flexible fiber thread 4 penetrates the seepage-proof particle layer 2 and divides the encapsulation space into a mesh encapsulation space. The seepage-proof particles of the seepage-proof particle layer 2 are fixed in the mesh encapsulation space by the flexible fiber thread 4.

[0029] Compared with existing technologies, the breathable and seepage-proof blanket provided by this invention features flexible fiber threads 4 that penetrate the seepage-proof granular layer 2 and connect with the upper and lower breathable fabric layers. This enhances the fit between the first breathable fabric layer 1, the seepage-proof granular layer 2, and the second breathable fabric layer 3, which helps maintain the integrity of the overall structure. Simultaneously, the flexible fiber threads 4 sewn onto the breathable and seepage-proof blanket are distributed crisscrossingly on the surfaces of the first and second breathable fabric layers 1 and 3, applying pressure towards the seepage-proof granular layer 2. In the areas where the flexible fiber threads 4 interact with the breathable fabric layers and the seepage-proof granular layer 2, the originally relatively loose flow channels of the particles are narrowed due to this pressure. When particles attempt to move within the impermeable particle layer 2, the narrow channels obstruct their movement, restricting their movement. Furthermore, the flexible fiber threads 4 divide the encapsulation space formed by the first breathable fabric layer 1 and the second breathable fabric layer 3 into a mesh-like encapsulation space. The flexible fiber threads 4 fix the impermeable particles of the impermeable particle layer 2 within this mesh-like encapsulation space, maintaining the particle fixation effect and effectively ensuring impermeability. Simultaneously, because this breathable impermeable blanket uses flexible fiber threads 4 to fix the impermeable particle layer 2, compared to the existing method of fixing using a mesh layer, the breathable impermeable blanket of this application maintains its flexibility, allowing it to be rolled or folded. Therefore, it is not limited by the mode of transportation, facilitating transport.

[0030] As one possible implementation, the first breathable fabric layer 1 and the second breathable fabric layer 3 comprise polytetrafluoroethylene (PTFE) nonwoven fabric. The porous structure of the PTFE nonwoven fabric ensures good breathability, allowing gas to pass smoothly through the layer. At the same time, the low surface energy of PTFE gives the fabric layer excellent waterproofness, effectively preventing the intrusion of external moisture and further enhancing the waterproof performance of the breathable waterproof blanket.

[0031] In some embodiments, the first breathable fabric layer and the second breathable fabric layer may be polypropylene nonwoven fabric, which has good air permeability and can prevent the outflow of impermeable particles.

[0032] As one possible implementation, the flexible fiber thread 4 is made of nylon. Nylon thread possesses high strength and toughness. In the structure of the breathable and seepage-proof blanket, it can withstand certain tensile and compressive forces without breaking. When the breathable and seepage-proof blanket is stretched during installation or subjected to compression and friction from external objects during use, the nylon thread can maintain its integrity, effectively maintaining the connection between the first breathable fabric layer 1, the seepage-proof particle layer 2, and the second breathable fabric layer 3, preventing separation or displacement between the layers and ensuring the structural stability of the breathable and seepage-proof blanket. Furthermore, nylon thread has excellent wear resistance; even under long-term friction with the internal seepage-proof particles, the nylon thread is not easily worn away, thus extending the service life of the breathable and seepage-proof blanket.

[0033] In some embodiments, the flexible fiber thread 4 can also be a polyester fiber thread or an aramid fiber thread, etc. Polyester fiber threads and aramid fiber threads also have high strength and wear resistance, which can provide good structural support for breathable and waterproof blankets.

[0034] Furthermore, the diameter of the flexible fiber thread is 0.10mm-0.20mm. Specifically, the diameter can be any diameter within the range of 0.10mm-0.20mm, such as 0.10mm, 0.11mm, 0.12mm, 0.13mm, 0.14mm, or 0.20mm. When the diameter of the flexible fiber thread is within the range of 0.10mm-0.20mm, it can effectively penetrate the impermeable granular layer 2 without occupying too much space, and make close contact with the granules, thereby forming a stable three-dimensional mesh structure. This better fixes the granules, prevents them from shifting when subjected to external forces, and maintains the tight fit between the first breathable fabric layer 1 and the second breathable fabric layer 3, ensuring the overall structural stability of the breathable impermeable blanket.

[0035] As one possible implementation, the mesh-like encapsulation space is a square mesh-like encapsulation space. When subjected to external pressure, due to the regular shape of the squares, the pressure can be transmitted relatively evenly to each square unit and the impermeable particles and flexible fiber threads 4 within it, thereby avoiding excessive local pressure that could lead to structural damage and effectively maintaining the overall structural stability of the breathable impermeable blanket. At the same time, the square mesh-like encapsulation space is relatively easy to construct during the manufacturing process. The flexible fiber threads 4 can be distributed in a square shape between the breathable fabric layer and the impermeable particle layer 2 through relatively simple weaving, sewing, or other processes.

[0036] Furthermore, the side length of each square in the grid-like encapsulation space is 1cm-2cm. Specifically, the side length of the grid-like encapsulation space can be any length within the 1cm-2cm range, such as 1cm, 1.1cm, 1.2cm, 1.3cm, or 2cm. It is understandable that a grid-like encapsulation space of 1cm-2cm length effectively restricts the movement of the impermeable particles within the protective particle layer. If the side length of the grid-like encapsulation space is too large, the particles have more room to move within the squares, making them prone to significant movement under external forces, potentially causing the particle layer to loosen and increasing the risk of leakage. Squares with a side length of 1cm-2cm confine the particles to a relatively small area, making the relative positions of the particles more stable. When particles are flowing, the edges of the squares can effectively block their flow, thereby improving impermeability.

[0037] As one possible implementation, each edge of each cell region in the mesh-encapsulated space is formed by multiple flexible fiber lines 4 arranged along the side length of the cell region, with the spacing between adjacent flexible fiber lines 4 ranging from 0.3 mm to 1 mm. Each edge of each cell region is formed by multiple flexible fiber lines 4 arranged sequentially along the side length of that edge, with the spacing between adjacent flexible fiber lines 4 set within a specific range of 0.3 mm to 1 mm. Specifically, the spacing between adjacent flexible fiber lines 4 can be in the range of 0.3 mm, 0.4 mm, 0.5 mm, or 1 mm. The multiple flexible fiber lines 4 and the specific spacing effectively fix the impermeable particles within the cell. The multiple flexible fiber lines 4 increase the contact and constraint points with the particles, making it difficult for the particles to break through the constraints of the flexible fiber lines 4 and move freely. Due to the small spacing between adjacent flexible fiber lines 4, the particles are confined by the flexible fiber lines 4, thus preventing large displacements within the cell, ensuring the stability of the particle layer, and thereby enhancing the impermeability of the breathable impermeable blanket. By using a needle hole spacing of 0.3mm to 1mm in the cell area, the needle holes are densely distributed on the breathable fabric layer, effectively reducing the size of the flow channels and thus effectively blocking the flow of seepage-proof particles, improving the seepage-proof effect of the breathable seepage-proof blanket. However, when the needle holes are too dense, i.e., the needle hole spacing is less than 0.3mm, more flexible fiber threads are present within the breathable seepage-proof blanket. While this increases the seepage-proof effect, it is detrimental to breathability. In summary, this design considers both effectively restricting particle flow to improve seepage-proofness and ensuring that the breathable seepage-proof blanket's breathability is not compromised by excessively pursuing seepage prevention, allowing the breathable seepage-proof blanket to simultaneously meet the needs of breathability and seepage prevention.

[0038] In some embodiments, the shape of each cell region of the mesh encapsulation space may include a circle, a triangle, a rhombus, a pentagon, or a hexagon. When the shape of each cell region of the mesh encapsulation space is circular, the circularly distributed cell regions can effectively disperse the stress on the breathable and seepage-proof blanket, thereby improving the service life of the breathable and seepage-proof blanket. When the shape of each cell region of the mesh encapsulation space is triangular, the triangular cell regions of the mesh encapsulation space provide better structural support for the breathable and seepage-proof blanket, enhancing its ability to withstand more complex external forces.

[0039] As one possible implementation, the mesh size of the impermeable granules in the impermeable granule layer 2 is 70-200 mesh. When the mesh size of the impermeable granules is within a certain range, the particle size is moderate. The particles in the impermeable granule layer 2 are neither too large, making them difficult to be effectively fixed and constrained by the flexible fiber thread 4, nor too small, leading to insufficient friction between particles and easy displacement. Furthermore, while ensuring good impermeability, it also takes into account air permeability. The pores between the particles and the gaps between them and the flexible fiber thread 4 provide air circulation channels. Compared to particles that are too coarse or too fine, 70-200 mesh particles will not have excessively large air channels due to overly loose packing, thus affecting impermeability, nor will they completely block the air channels due to overly dense packing.

[0040] As one possible implementation, the thickness of the breathable geotextile blanket is 0.1cm-1cm. This thickness range helps ensure the uniformity of its performance. The thinner structure makes material distribution easier to control. Whether it's the flexible fiber thread 4, the geotextile granule layer 2, or the breathable fabric layer, they can all be more evenly distributed within a smaller thickness space. Therefore, the entire breathable geotextile blanket will not exhibit significant local differences in breathability and impermeability, allowing it to function stably during use and reducing the risk of localized failure due to uneven performance. When the breathable geotextile blanket is subjected to external pressure, the 0.1cm-1cm thickness allows for uniform force transmission within the material. The thinner structure avoids internal stress concentration or delayed force transmission that might occur with excessive thickness, allowing each layer of material to work together to withstand external forces, thus protecting the service life of the breathable geotextile blanket.

[0041] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A breathable and waterproof blanket, characterized in that, include: First breathable fabric layer, seepage-proof granular layer, and second breathable fabric layer; The impermeable granular layer is filled within the encapsulation space formed by the first breathable fabric layer and the second breathable fabric layer. A flexible fiber thread is sewn between the first breathable fabric layer and the second breathable fabric layer. The flexible fiber thread runs through the impermeable granular layer and divides the encapsulation space into a mesh-like encapsulation space. The impermeable granules of the impermeable granular layer are fixed within the mesh-like encapsulation space by the flexible fiber thread.

2. The breathable and waterproof blanket according to claim 1, characterized in that, The first breathable fabric layer and the second breathable fabric layer comprise polytetrafluoroethylene nonwoven fabric.

3. The breathable and waterproof blanket according to claim 1, characterized in that, The flexible fiber thread is a nylon thread.

4. The breathable and waterproof blanket according to claim 1, characterized in that, The diameter of the flexible fiber thread is 0.10mm-0.20mm.

5. The breathable and waterproof blanket according to claim 1, characterized in that, The mesh encapsulation space is a square mesh encapsulation space.

6. The breathable and waterproof blanket according to claim 5, characterized in that, The side length of each square region in the grid-like encapsulation space is 1cm-2cm.

7. The breathable and waterproof blanket according to claim 1, characterized in that, The shape of each cell region of the mesh encapsulation space includes a circle, triangle, rhombus, pentagon, or hexagon.

8. The breathable and waterproof blanket according to claim 1, characterized in that, Each side of each cell region of the mesh encapsulation space is formed by multiple flexible fiber lines arranged along the side length of the cell region, and the spacing between two adjacent flexible fiber lines is 0.3mm to 1mm.

9. The breathable and waterproof blanket according to claim 1, characterized in that, The mesh size of the impermeable particles in the impermeable particle layer is 70-200 mesh.

10. The breathable and waterproof blanket according to any one of claims 1-9, characterized in that, The thickness of the breathable and waterproof blanket is 0.1cm-1cm.

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