A high-strength, anti-aging warp-knitted composite geotextile

Abstract

This utility model relates to the field of geotextile technology, specifically a high-strength, anti-aging warp-knitted composite geotextile, comprising a non-woven base layer, a woven layer laid on top of the non-woven base layer, and the woven layer being bonded to the non-woven base layer via polyester connecting threads. The composite board of the non-woven base layer and the woven layer has rubber strips fixed on both sides, and a staggered splicing structure is provided between the two rubber strips, connected by limiting clips. The advantages are: by setting the staggered splicing structure, including splicing groove one and splicing groove two cut into the two rubber strips, when the two non-woven base layers are spliced ​​end to end, splicing groove one overlaps splicing groove two, achieving seamless splicing and improving the sealing and integrity of the splice. The use of limiting clips to connect the staggered splicing structure, with the clip inserted into the groove and the diameter of the end of the clip being larger than the width of the top opening of the groove, ensures the clip is secured within the groove, preventing it from falling off and achieving effective limiting after splicing.

Description

Technical Field

[0001] The present utility model relates to the field of geotextiles, in particular to a high-strength anti-aging warp-knitted composite geotextile. Background Art

[0002] In fields such as engineering construction, geotextiles play an important role. As a common geotechnical material, warp-knitted composite geotextiles are widely used in various engineering scenarios. However, the existing warp-knitted composite geotextiles have some problems to be solved urgently.

[0003] The edge portion of the warp-knitted composite geotextile is relatively fragile, and will inevitably be subjected to tensile force during the construction process, and will also continuously bear various external forces during long-term use. Since the edge is not effectively reinforced, the yarns are prone to breakage under the action of these external forces, which in turn leads to edge fraying of the geotextile. Once fraying occurs, it will seriously affect the overall structural integrity of the geotextile, reduce its performance, fail to meet engineering requirements, and may even cause engineering safety hazards. On the other hand, the edge of the non-woven fabric base layer is the area where the material most frequently contacts the external environment, and is frequently subjected to friction, collision and other effects in daily use. The edge of the existing warp-knitted composite geotextile lacks effective protective measures, and has insufficient flexibility and wear resistance, resulting in easy wear of the edge. Therefore, it is of great practical significance to develop a warp-knitted composite geotextile that can effectively solve the above problems. Contents of the Utility Model

[0004] The purpose of the present utility model is to provide a high-strength anti-aging warp-knitted composite geotextile to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: a high-strength anti-aging warp-knitted composite geotextile, comprising a non-woven fabric base layer, a woven layer is laid above the non-woven fabric base layer, the woven layer is compounded above the non-woven fabric base layer through polyester connecting threads, rubber strips are fixed on both sides of the plate body formed by compounding the non-woven fabric base layer and the woven layer, a staggered assembly structure is arranged between the two rubber strips, and the staggered assembly structure is connected by a limiting fastener.

[0006] Preferably, the rubber strip is in a "C"-shaped plate-like structure, the length of the long side of the rubber strip is equal to the length of the long side of the non-woven fabric base layer, one side plate of the rubber strip covers the bottom edge of the non-woven fabric base layer, and the other side plate of the rubber strip covers the edge of the woven layer.

[0007] Preferably, the staggered splicing structure includes a first splicing groove and a second splicing groove. The first splicing groove is formed on the bottom surface of one rubber strip, and the second splicing groove is formed on the top surface of the other rubber strip. The first splicing groove and the second splicing groove have the same height, and the long sides of the rubber strips, the first splicing groove and the second splicing groove have the same length. When the two non-woven fabric base layers are spliced end to end, the first splicing groove on one side of one non-woven fabric base layer is lapped on the second splicing groove on one side of the other non-woven fabric base layer.

[0008] Preferably, a first embedding groove is formed on the top surface of the first splicing groove, and a second embedding groove is formed on the bottom surface of the second splicing groove.

[0009] Preferably, the limiting fastener connection includes a first plastic strip, a clamping groove, a second plastic strip and a clamping strip. The first plastic strip is fixed inside the second embedding groove. The clamping groove is a groove body with a round opening at the port, and the clamping groove is formed on the top surface of the first plastic strip. The second plastic strip is fixed inside the first embedding groove. The clamping strip is a long strip with a round end face, and the clamping strip is integrally formed on the bottom surface of the second plastic strip. After the two non-woven fabric base layers are spliced through the first splicing groove and the second splicing groove, the clamping strip is inserted into the clamping groove, and the diameter of the round end face of the clamping strip is greater than the width of the top notch of the clamping groove.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: The high-strength anti-aging warp-knitted composite geotextile proposed by the utility model fixes rubber strips with a "C"-shaped plate-like structure on both sides of the plate body formed by compounding the non-woven fabric base layer and the woven layer. One side plate of the rubber strip covers the edge of the bottom surface of the non-woven fabric base layer, and the other side plate covers the edge of the woven layer. This structure can wrap the edge yarns, effectively fix the edge yarns during construction stretching or long-term use, avoid the disintegration phenomenon caused by yarn breakage, ensure the overall structural integrity of the warp-knitted composite geotextile, enable it to better exert its performance and meet engineering requirements.

[0011] By arranging the staggered assembly structure, which includes the first splicing groove and the second splicing groove formed on the two rubber strips, when the two non-woven fabric base layers are spliced end to end, the first splicing groove is lapped on the second splicing groove, so as to realize seamless splicing and improve the sealing performance and integrity of the spliced part. At the same time, the limiting fastener is used to connect the staggered assembly structure, the clamping strip is inserted into the clamping groove, and the diameter of the round end face of the clamping strip is greater than the width of the top notch of the clamping groove, so that the clamping strip is clamped in the clamping groove to prevent the clamping strip from falling off arbitrarily, realize effective limiting after splicing, further enhance the stability and reliability of splicing, facilitate construction operation and improve construction efficiency. Brief Description of the Drawings Figure 1 is a schematic structural diagram of the utility model; Figure 2 is Figure 1 a schematic enlarged view of the structure at position A in the drawing; Figure 3is a schematic diagram of the connection structure between the nonwoven fabric base layer and the rubber strip of the present utility model; Figure 4 is Figure 3 a schematic enlarged view of the structure at position B; Figure 5 is Figure 3 a schematic enlarged view of the structure at position C;

[0012] In the drawings: nonwoven fabric base layer 1, woven layer 2, rubber strip 3, first splicing groove 301, second splicing groove 302, first embedding groove 303, second embedding groove 304, first plastic strip 4, clamping groove 401, second plastic strip 5, clamping strip 501. DETAILED DESCRIPTION OF EMBODIMENTS

[0013] In order to clearly and completely describe the purpose and technical solution of the present utility model, and to make the advantages more clearly understood, the embodiments of the present utility model are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of, but not all of, the embodiments of the present utility model, and are merely used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by a person of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0014] Please refer to Figures 1-5 , the present utility model provides a technical solution: a high-strength aging-resistant warp-knitted composite geotextile, comprising a nonwoven fabric base layer 1, a woven layer 2 is laid above the nonwoven fabric base layer 1, the woven layer 2 is compounded above the nonwoven fabric base layer 1 through polyester connecting threads, rubber strips 3 are fixed on both sides of the plate body formed by compounding the nonwoven fabric base layer 1 and the woven layer 2, the rubber strip 3 is a plate-shaped structure in the shape of a "C", the length of the long side of the rubber strip 3 is equal to the length of the long side of the nonwoven fabric base layer 1, one side plate of the rubber strip 3 covers the bottom edge of the nonwoven fabric base layer 1, and the other side plate of the rubber strip 3 covers the edge of the woven layer 2.

[0015] If the edge of the warp-knitted composite geotextile is not reinforced, it is prone to fraying caused by yarn breakage during construction stretching or long-term use, which affects the overall structural integrity. The wrapping of the rubber strip 3 can fix the edge yarns and avoid the fraying phenomenon. The edge of the nonwoven fabric base layer 1 is the area where the material contacts the outside most frequently, and the flexibility and wear resistance of the rubber strip 3 can effectively reduce edge wear and prolong the service life. As an edge reinforcement layer, the rubber strip 3 can disperse local stress and prevent tears from expanding from the edge to the inside, which is especially suitable for high-stress environments.

[0016] In order to realize edge overlapping and pressing when two nonwoven fabric base layers 1 installed with rubber strips 3 are spliced, the following is proposed: A staggered splicing structure is provided between the two rubber strips 3. The staggered splicing structure includes a first splicing groove 301 and a second splicing groove 302. The first splicing groove 301 is located on the bottom surface of one rubber strip 3, and the second splicing groove 302 is located on the top surface of the other rubber strip 3. The first splicing groove 301 and the second splicing groove 302 are of equal height, and the long side lengths of the rubber strip 3, the first splicing groove 301, and the second splicing groove 302 are equal. When the two non-woven fabric base layers 1 are spliced ​​end to end, the first splicing groove 301 on one side of one non-woven fabric base layer 1 overlaps the second splicing groove 302 on the other side of the other non-woven fabric base layer 1. This achieves a seamless splicing of the two non-woven fabric base layers 1.

[0017] To achieve the limiting function after splicing two nonwoven base layers 1, the following was proposed: The staggered assembly structure is connected by limiting clips. The top surface of the splicing groove 301 is provided with an insert groove 303, and the bottom surface of the splicing groove 302 is provided with an insert groove 304. The limiting clip connection includes a plastic strip 4, a slot 401, a plastic strip 5, and a clip 501. The plastic strip 4 is fixed inside the insert groove 304. The slot 401 is a groove with a round opening at the end. The slot 401 is opened on the top surface of the plastic strip 4. The plastic strip 5 is fixed inside the insert groove 303. The clip 501 is a long strip with a round end. The clip 501 is integrally formed on the bottom surface of the plastic strip 5. After the two non-woven base layers 1 are spliced ​​through the splicing groove 301 and the splicing groove 302, the clip 501 is inserted into the slot 401. The diameter of the round end of the clip 501 is larger than the width of the top opening of the slot 401. Thus, the card strip 501 is secured within the card slot 401, thereby preventing the card strip 501 from falling out of the card slot 401 at will, and achieving the limiting position of the two non-woven fabric base layers 1 after being stacked and assembled through splicing slot one 301 and splicing slot two 302.

[0018] Application method of high-strength and anti-aging warp-knitted composite geotextile: Two high-strength, anti-aging warp-knitted composite geotextiles to be spliced ​​are placed close together, with the splicing groove 301 on one side of one non-woven base layer 1 overlapping the splicing groove 302 on the other side, achieving a seamless splicing of the two non-woven base layers 1. After the two non-woven base layers 1 are spliced ​​through splicing groove 301 and splicing groove 302, a retaining strip 501 is inserted into the retaining groove 401. Because the diameter of the end round surface of the retaining strip 501 is larger than the width of the top opening of the retaining groove 401, the retaining strip 501 will be secured within the retaining groove 401, thus preventing the retaining strip 501 from falling out of the retaining groove 401 at will, achieving the limiting and fixing of the two non-woven base layers 1 after being stacked and assembled through splicing groove 301 and splicing groove 302. During construction, multiple pieces of high-strength, anti-aging warp-knitted composite geotextiles are spliced ​​together according to actual needs according to the above splicing and limiting fixing method to form the required integral structure. During construction, stretching, or long-term use, the rubber strip 3 can wrap and fix the edge yarn to prevent it from coming apart; its flexibility and abrasion resistance can effectively reduce edge wear of the nonwoven base layer 1 and extend its service life; at the same time, as an edge reinforcement layer, it can disperse local stress and prevent tears from spreading from the edge to the inside, making it especially suitable for high-stress environments.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength anti-aging warp-knitted composite geotextile, comprising a non-woven fabric base layer (1), a woven layer (2) laid above the non-woven fabric base layer (1), and the woven layer (2) is compounded above the non-woven fabric base layer (1) through a polyester connecting line, characterized in that: The plate body formed by compounding the nonwoven fabric base layer (1) and the woven layer (2) is fixed with rubber strips (3) on both sides, a staggered assembly structure is arranged between the two rubber strips (3), and the staggered assembly structure is connected through a limiting fastener.

2. The high-strength anti-aging warp-knitted composite geotextile according to claim 1, characterized in that: The rubber strip (3) is a plate-shaped structure in the shape of a "C", the length of the long side of the rubber strip (3) is equal to the length of the long side of the nonwoven fabric base layer (1), one side plate of the nonwoven fabric base layer (1) covers the bottom edge of the nonwoven fabric base layer (1), and the other side plate of the rubber strip (3) covers the edge of the woven layer (2).

3. The high-strength, anti-aging warp-knitted composite geotextile according to claim 1, characterized in that: The staggered assembly structure includes a first splicing groove (301) and a second splicing groove (302). The first splicing groove (301) is opened on the bottom surface of one rubber strip (3), the second splicing groove (302) is opened on the top surface of the other rubber strip (3), the heights of the first splicing groove (301) and the second splicing groove (302) are equal, and the lengths of the long sides of the rubber strip (3), the first splicing groove (301) and the second splicing groove (302) are equal. When two nonwoven fabric base layers (1) are spliced end to end, the first splicing groove (301) on one side of one nonwoven fabric base layer (1) is lapped on the second splicing groove (302) on one side of the other nonwoven fabric base layer (1).

4. The high-strength, anti-aging warp-knitted composite geotextile according to claim 3, characterized in that: A first embedding groove (303) is opened on the top surface of the first splicing groove (301), and a second embedding groove (304) is opened on the bottom surface of the second splicing groove (302).

5. The high-strength, anti-aging warp-knitted composite geotextile according to claim 4, characterized in that: The limiting fastener connection includes a first plastic strip (4), a clamping groove (401), a second plastic strip (5) and a clamping strip (501). The first plastic strip (4) is fixed inside the second embedding groove (304), the clamping groove (401) is a groove body with a round opening, the clamping groove (401) is opened on the top surface of the first plastic strip (4), the second plastic strip (5) is fixed inside the first embedding groove (303), the clamping strip (501) is a long strip with a round end face, the clamping strip (501) is integrally formed on the bottom surface of the second plastic strip (5). After the two nonwoven fabric base layers (1) are spliced through the first splicing groove (301) and the second splicing groove (302), the clamping strip (501) is inserted into the clamping groove (401), and the diameter of the round end face of the clamping strip (501) is larger than the width of the top notch of the clamping groove (401).

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