A simple woven, one-piece molded bag with built-in water filtration points
The one-piece woven geotextile bag uses woven filament geotextile and filter point components to form a grid-like cavity, which isolates moisture and ensures uniform grouting. This solves the problem of excessively large or small filter point area in existing geotextile bags, and achieves uniform distribution of concrete or mortar and good permeability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI SHENHU TEXTILE MFG CO LTD
- Filing Date
- 2023-12-25
- Publication Date
- 2026-05-26
AI Technical Summary
The existing formwork bags have filter point areas that are too large or too small, leading to uneven concrete or mortar pouring or reduced permeability.
The molded bag is made of machine-woven geotextile in one piece. The filter point components are formed by the machine-woven long filament geotextile. Combined with plastic shell, water-absorbing cotton and cotton thread, a grid-like cavity is formed to isolate the water in the concrete or mortar. The uniformity of the grouting is ensured by the use of reinforcing ropes and uniform thickness ropes.
It achieves uniform distribution of concrete or mortar within the formwork bag and good water permeability, preventing water from seeping in and affecting permeability, and the sealing operation is simple and convenient.
Smart Images

Figure CN117721758B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of civil engineering materials technology, specifically to a simple molded bag with built-in water filtration points, woven in one piece. Background Technology
[0002] Formwork bags are large, continuous bag-shaped products made of polymer fiber synthetic materials. They are filled with concrete or cement mortar and solidify to form a whole concrete bag. Mortar can also be filled into the inside of the formwork bag. After being filled with concrete or mortar, the formwork bag can drain water from the slope and is therefore often used in the field of dam protection.
[0003] Existing formwork bags use a knitting method to connect the upper and lower pieces of bag fabric to form nodes, which are water-filtering points. These points are used for water penetration into the upper and lower spaces of the formwork bag. However, if the node area is too large, it will occupy the inner cavity of the grouting, resulting in uneven distribution of concrete or mortar. If the node area is too small, water in the concrete or mortar will easily seep in, thus greatly reducing the water permeability of the node after the concrete or mortar has solidified.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a simple molded bag with built-in water filtration points in one piece of woven fabric. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a simple molded bag with built-in water filtration points, which solves the problems mentioned in the background section.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a simple molded geotextile bag with built-in water-filtering points, comprising a geotextile bag assembly and a water-filtering point assembly. The geotextile bag assembly includes an upper woven fabric, a lower woven fabric, and a grouting cavity. The edge of the upper woven fabric is knitted to the lower woven fabric by a loom. A grouting cavity is provided between the upper and lower woven fabrics. The upper and lower woven fabrics are machine-woven long-filament geotextiles. The water-filtering point assembly is evenly distributed inside the grouting cavity, and the water-filtering point assembly evenly divides the inside of the grouting cavity into a grid-like cavity. The nodes of the grid-like cavity are the water-filtering points. The surfaces of the upper and lower woven fabrics are provided with reinforcing ropes. The water-filtering point assembly includes a plastic shell, absorbent cotton, and cotton thread. The plastic shell is filled with absorbent cotton, and cotton thread is threaded through the absorbent cotton.
[0007] Furthermore, the reinforcing rope has a mesh structure, and the nodes of the reinforcing rope coincide with the water filtration point assembly.
[0008] Furthermore, the cotton thread is also threaded through the reinforcing rope, the surface of the upper woven fabric, and the surface of the lower woven fabric, and the inner surfaces of the upper woven fabric and the lower woven fabric are bonded to the top and bottom of the plastic shell.
[0009] Furthermore, the plastic shell has a hollow structure, and the upper and lower surfaces of the absorbent cotton are respectively attached to the inner surfaces of the upper and lower woven fabrics.
[0010] Furthermore, the molded bag assembly also includes a fixing adhesive and a uniform thickness drawstring. The inner surfaces of the upper and lower woven fabrics are provided with fixing adhesive, and the surface of the fixing adhesive is connected to the uniform thickness drawstring.
[0011] Furthermore, the fixing adhesive is located inside the mesh-like cavity, and both ends of the uniform thickness pull rope are provided with fixing adhesive.
[0012] Furthermore, a first take-up fabric is provided at the top of the upper woven fabric, and a second take-up fabric is provided at the top of the lower woven fabric.
[0013] Furthermore, the second take-up fabric is longer than the first take-up fabric, and the first and second take-up fabrics, together with the upper and lower woven fabrics, form an integrated knitting structure.
[0014] Furthermore, an adhesive layer is provided on the surface of the first winding fabric near the upper woven fabric, and the length of the adhesive layer is adapted to the width of the upper woven fabric.
[0015] Furthermore, the simple molded bag with built-in water filtration points, woven in one piece, is applied in the field of dam protection.
[0016] This invention provides a simple woven, one-piece molded bag with built-in water-filtering points, which has the following beneficial effects:
[0017] 1. This simple molded bag, woven in one piece, features built-in drainage points. When concrete or mortar is poured, the plastic shell isolates the water in the concrete or mortar, preventing water containing mortar or concrete components from seeping into the absorbent cotton and solidifying, thus affecting the water permeability. Furthermore, soil moisture in the upper and lower spaces of the molded bag can permeate through the drainage points along the absorbent cotton. The drainage points also divide the grouting cavity into several grid-like cavities. Combined with the grid-like reinforcing ropes, this prevents any areas of the mortar or concrete from becoming bulky during pouring, ensuring that the concrete or mortar is evenly distributed within the grid-like cavities after pouring.
[0018] 2. This simple molded bag, woven in one piece and with built-in drainage points, has uniformly thick drawstrings attached to the top and bottom walls of each grid-shaped cavity via adhesive. As concrete or mortar is poured into the bag, the grid-shaped cavities gradually expand due to the material entering. When a grid-shaped cavity expands to its limit, i.e., when the drawstrings are tightened, the excess concrete or mortar is diverted to other grid-shaped cavities, thus ensuring a uniform distribution of concrete or mortar inside the bag.
[0019] 3. This machine-woven, one-piece molded simple molded bag with built-in water filtration points allows for quick sealing of the opening of the molded bag after concrete or mortar is poured in. The second roll-up cloth is folded up so that one side is attached to the surface of the first roll-up cloth. Then, the first and second roll-up cloths are rolled up until the side of the second roll-up cloth is bonded by the adhesive layer. This allows for quick sealing of the opening of the molded bag, and the sealing operation is simple, easy to understand, and convenient for people to operate. Attached Figure Description
[0020] Figure 1 This is a top view schematic diagram of the upper woven fabric structure of a simple molded bag with built-in water filtration points, which is a one-time woven fabric of the present invention.
[0021] Figure 2 This invention relates to a simple molded bag with built-in water filtration points, manufactured in one piece using a woven fabric. Figure 1 Enlarged structural diagram at point A in the middle;
[0022] Figure 3 This is a schematic diagram of the internal structure of the grouting cavity of a simple molded bag with built-in water filtration points, which is woven in one piece according to the present invention.
[0023] Figure 4 This invention relates to a simple molded bag with built-in water filtration points, manufactured in one piece using a woven fabric. Figure 3 Enlarged structural diagram at point B;
[0024] Figure 5 This is a schematic diagram of the structure of the first and second rolls of fabric after sealing, which are part of a simple molded bag with built-in water filtration points woven in one piece according to the present invention.
[0025] In the diagram: 1. Molded bag assembly; 101. Upper woven fabric; 102. Lower woven fabric; 103. Grouting cavity; 104. Fixing adhesive; 105. Uniform thickness pull rope; 2. Filter point assembly; 201. Plastic shell; 202. Absorbent cotton; 203. Cotton thread; 3. Reinforcing rope; 4. First winding fabric; 5. Second winding fabric; 6. Adhesive layer. Detailed Implementation
[0026] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.
[0027] like Figures 1-4As shown, the present invention provides a technical solution: a simple geotextile bag with built-in drainage points, comprising a geotextile bag assembly 1 and a drainage point assembly 2. The geotextile bag assembly 1 includes an upper woven fabric 101, a lower woven fabric 102, and a grouting cavity 103. The lower woven fabric 102 is knitted to the edge of the upper woven fabric 101 by a loom. A grouting cavity 103 is provided between the upper woven fabric 101 and the lower woven fabric 102. The upper woven fabric 101 and the lower woven fabric 102 are machine-woven long-filament geotextiles. The drainage point assembly 2 is evenly distributed inside the grouting cavity 103, and the drainage point assembly 2 evenly divides the inside of the grouting cavity 103 into a grid-like cavity. The nodes of the grid-like cavity are drainage points. The surface is provided with reinforcing ropes 3. The water filter point assembly 2 includes a plastic shell 201, absorbent cotton 202 and cotton thread 203. The plastic shell 201 is filled with absorbent cotton 202, and cotton thread 203 is threaded through the absorbent cotton 202. The reinforcing ropes 3 have a mesh structure, and the nodes of the reinforcing ropes 3 coincide with the water filter point assembly 2. The cotton thread 203 also passes through the reinforcing ropes 3, the surface of the upper woven fabric 101 and the lower woven fabric 102, and the inner sides of the upper woven fabric 101 and the lower woven fabric 102 are bonded to the top and bottom of the plastic shell 201. The plastic shell 201 has a hollow structure. The upper and lower surfaces of the absorbent cotton 202 are respectively attached to the inner sides of the upper woven fabric 101 and the lower woven fabric 102.
[0028] The specific operation is as follows: The inside of the plastic shell 201 is filled with absorbent cotton 202. Water-permeable nodes are designed on the surfaces of the lower woven fabric 102 and the upper woven fabric 101. Adhesive is applied to both ends of the plastic shell 201 to bond it to the water-permeable nodes of the lower woven fabric 102 and the upper woven fabric 101. The edges are then sewn together using a loom, leaving the openings at the edges for mortar or concrete injection. Cotton threads 203 are then threaded through the water-permeable nodes of the lower woven fabric 102 and the upper woven fabric 101 to ensure a tight fit between the inner surfaces of the lower woven fabric 102 and the upper woven fabric 101 and the absorbent cotton 202, as well as the upper and lower surfaces of the plastic shell 201. The lower woven fabric 102, the upper woven fabric 101, and the plastic shell 201 are then bonded together. 01 The absorbent cotton 202 is completely wrapped, isolating the absorbent cotton 202 from the grouting cavity 103. This ensures that when concrete or mortar is poured into the formwork, the water in the concrete or mortar is isolated by the plastic shell 201, preventing water containing mortar or concrete components from seeping into the absorbent cotton 202 and solidifying, thus affecting the water seepage effect. Furthermore, soil moisture in the upper and lower spaces of the formwork can seep through the seepage nodes along the absorbent cotton 202. Moreover, the seepage nodes divide the grouting cavity 103 into several grid-like cavities. Combined with the grid-like reinforcing ropes 3, it can prevent swelling of mortar or concrete in any part during pouring, thus ensuring that the concrete or mortar is evenly distributed inside the grid-like cavities after the formwork is poured.
[0029] like Figures 1-3As shown, the molded bag assembly 1 also includes a fixing adhesive 104 and a uniform thickness draw rope 105. The inner surfaces of the upper woven fabric 101 and the lower woven fabric 102 are provided with the fixing adhesive 104, and the surface of the fixing adhesive 104 is connected to the uniform thickness draw rope 105. The fixing adhesive 104 is located inside the mesh-like cavity, and both ends of the uniform thickness draw rope 105 are provided with the fixing adhesive 104.
[0030] The specific operation is as follows: the seepage nodes divide the grouting cavity 103 into several grid-like cavities, and the top and bottom walls of each grid-like cavity are connected to uniform thickness pull ropes 105 by fixing adhesive 104. As a result, when concrete or mortar is poured into the formwork, the inside of the grid-like cavities gradually expands due to the entry of material. When a grid-like cavity expands to its limit, that is, when the uniform thickness pull rope 105 is tightened, the excess concrete or mortar will be diverted to other grid-like cavities, thereby making the concrete or mortar evenly distributed inside the formwork.
[0031] like Figure 1 , Figure 5 As shown, a first take-up fabric 4 is provided on the top of the upper woven fabric 101, and a second take-up fabric 5 is provided on the top of the lower woven fabric 102. The length of the second take-up fabric 5 is longer than that of the first take-up fabric 4. The first take-up fabric 4 and the second take-up fabric 5 form an integrated knitting structure with the upper woven fabric 101 and the lower woven fabric 102, respectively. An adhesive layer 6 is provided on the side of the surface of the first take-up fabric 4 near the upper woven fabric 101, and the length of the adhesive layer 6 is adapted to the width of the upper woven fabric 101.
[0032] The specific operation is as follows: neither the first take-up cloth 4 nor the second take-up cloth 5 has reinforcing ribs 3 on its surface and the surface is flat. After the formwork bag is filled with concrete or mortar, the second take-up cloth 5 is folded up so that one side is attached to the surface of the first take-up cloth 4. Then the first take-up cloth 4 and the second take-up cloth 5 are rolled up until the side of the second take-up cloth 5 is bonded by the adhesive layer 6. This allows the opening of the formwork bag to be sealed quickly, and the sealing operation is simple, easy to understand and convenient for people to operate.
[0033] This simple, machine-woven, one-piece molded bag with built-in water filtration points is used in dam protection.
[0034] In summary, as Figures 1-5As shown, this simple molded bag, woven in one piece, features built-in drainage points. In use, firstly, absorbent cotton 202 is filled inside the plastic shell 201. Then, drainage points are designed on the surfaces of the lower woven fabric 102 and the upper woven fabric 101. Adhesive is applied to both ends of the plastic shell 201 to bond it to the drainage points of the lower woven fabric 102 and the upper woven fabric 101. The edges are then sewn together using a loom, leaving the openings at the edges for mortar or concrete injection. Finally, the drainage points of the lower woven fabric 102 and the upper woven fabric 101 are sealed using a loom. The cotton thread 203 is threaded through the bottom to ensure that the inner sides of the lower woven fabric 102 and the upper woven fabric 101 are tightly attached to the absorbent cotton 202 and the upper and lower surfaces of the plastic shell 201. The absorbent cotton 202 is completely wrapped by the lower woven fabric 102, the upper woven fabric 101 and the plastic shell 201, so that the absorbent cotton 202 is isolated from the grouting cavity 103. Thus, when the mold bag is filled with concrete or mortar, the water in the concrete or mortar will be isolated by the plastic shell 201, preventing water containing mortar or concrete components from seeping into the absorbent cotton 202 and solidifying, which would affect the water seepage effect.
[0035] Furthermore, the soil moisture in the upper and lower spaces of the mold bag can permeate through the seepage nodes along the absorbent cotton 202, and the seepage nodes divide the grouting cavity 103 into several grid-like cavities.
[0036] The seepage nodes divide the grouting cavity 103 into several grid-like cavities. The top and bottom walls of each grid-like cavity are connected to uniform thickness pull ropes 105 by fixing adhesive 104. As a result, when concrete or mortar is poured into the formwork, the grid-like cavities gradually expand due to the material entering. When a grid-like cavity expands to its limit, i.e. when the uniform thickness pull rope 105 is tightened, the excess concrete or mortar will be diverted to other grid-like cavities. This makes the concrete or mortar evenly distributed inside the formwork. In addition, the grid-like reinforcing ropes 3 can prevent the mortar or concrete from becoming bloated in any part during pouring. This enhances the uniformity of the distribution of concrete or mortar inside the grid-like cavities after the formwork is filled with concrete or mortar.
[0037] Neither the first take-up fabric 4 nor the second take-up fabric 5 has reinforcing ribs 3 on its surface, and both surfaces are flat. After the formwork bag is filled with concrete or mortar, the second take-up fabric 5 is folded up so that one side is attached to the surface of the first take-up fabric 4. Then the first take-up fabric 4 and the second take-up fabric 5 are rolled up until the side of the second take-up fabric 5 is bonded by the adhesive layer 6. This allows for quick sealing of the opening of the formwork bag, and the sealing operation is simple, easy to understand, and convenient for people to operate.
[0038] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A simple molded bag with built-in water-filtering points, formed in one piece by a woven fabric, comprising a molded bag assembly (1) and a water-filtering point assembly (2), characterized in that: The geotextile bag assembly (1) includes an upper woven fabric (101), a lower woven fabric (102), and a grouting cavity (103). The lower woven fabric (102) is knitted to the edge of the upper woven fabric (101) by a loom. A grouting cavity (103) is provided between the upper woven fabric (101) and the lower woven fabric (102). The upper woven fabric (101) and the lower woven fabric (102) are machine-woven long filament geotextiles. The water-filtering point assembly (2) is evenly distributed inside the grouting cavity (103). The water-filtering point assembly (2) evenly divides the inside of the grouting cavity (103) into a grid-like cavity. The nodes of the grid-like cavity are the water-filtering points. The surfaces of the upper woven fabric (101) and the lower woven fabric (102) are provided with reinforcing ropes (3). The water-filtering point assembly (2) includes a plastic shell (2). 01) Absorbent cotton (202) and cotton thread (203), the interior of the plastic shell (201) is filled with absorbent cotton (202), and cotton thread (203) is threaded through the interior of the absorbent cotton (202). The reinforcing rope (3) has a mesh structure, and the nodes of the reinforcing rope (3) coincide with the water filter assembly (2). The cotton thread (203) also passes through the reinforcing rope (3), the surface of the upper fabric (101) and the lower fabric (102), and the inner surfaces of the upper fabric (101) and the lower fabric (102) are respectively bonded to the top and bottom of the plastic shell (201). The plastic shell (201) has a hollow structure. The upper and lower surfaces of the absorbent cotton (202) are respectively attached to the inner surfaces of the upper fabric (101) and the lower fabric (102).
2. The simple molded bag with built-in water-filtering points, woven in one piece, as described in claim 1, is characterized in that: The molded bag assembly (1) further includes a fixing adhesive (104) and a uniform thickness draw rope (105). The inner surfaces of the upper woven fabric (101) and the lower woven fabric (102) are provided with fixing adhesive (104), and the surface of the fixing adhesive (104) is connected to the uniform thickness draw rope (105).
3. A simple molded bag with built-in water-filtering points, woven in one piece, as described in claim 2, is characterized in that: The fixing adhesive (104) is located inside the mesh-like cavity, and the fixing adhesive (104) is provided at both ends of the uniform thickness pull rope (105).
4. A simple molded bag with built-in water-filtering points, woven in one piece, as described in claim 1, characterized in that: The top of the upper woven fabric (101) is provided with a first take-up cloth (4), and the top of the lower woven fabric (102) is provided with a second take-up cloth (5).
5. A simple molded bag with built-in water-filtering points, woven in one piece, as described in claim 4, characterized in that: The length of the second take-up fabric (5) is longer than that of the first take-up fabric (4), and the first take-up fabric (4) and the second take-up fabric (5) form a knitted integrated structure with the upper fabric (101) and the lower fabric (102) respectively.
6. A simple molded bag with built-in water-filtering points, woven in one piece, as described in claim 5, characterized in that: An adhesive layer (6) is provided on the side of the first take-up fabric (4) near the upper fabric (101), and the length of the adhesive layer (6) is adapted to the width of the upper fabric (101).
7. A simple molded bag with built-in water-filtering points, woven in one piece, as described in any one of claims 1-6, characterized in that: The simple molded bag with built-in water filtration points, which is woven in one piece, is used in the field of dam protection.