CN215925938U

CN215925938U - Three-dimensional net

Info

Publication number: CN215925938U
Application number: CN202121798379.7U
Authority: CN
Inventors: 杨宝和; 袁绍鹏; 张云翼; 宗屹; 周可庆; 徐方军; 戴征杰; 王亚忠; 郑鸿; 陈丽丽
Original assignee: BOSTD GEOSYNTHETICS QINGDAO Ltd
Current assignee: BOSTD GEOSYNTHETICS QINGDAO Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-03-01
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a three-dimensional net, which mainly comprises: the supporting ribs are fixedly connected to one side face of the first net layer and are integrally formed with the first net layer, and the supporting ribs are discontinuous columns which are evenly distributed in the longitudinal direction and the transverse direction. The three-dimensional net can realize excellent flow guiding performance in longitudinal and transverse directions, has enough support for soft boundaries such as non-woven fabrics and the like, and is not easy to generate interlayer slippage damage.

Description

Three-dimensional net

Technical Field

The utility model relates to the technical field of drainage nets, in particular to a three-dimensional net.

Background

The three-dimensional drainage net is also called as a three-dimensional geotechnical drainage plate, a tunnel drainage plate or a drainage plate, is formed by connecting water-permeable geotechnical cloth on two sides of a plastic net with a three-dimensional structure, and is mainly used for drainage of refuse landfill sites, roadbeds and tunnel inner walls. The existing three-dimensional drainage net is formed by three groups of parallel plastic ribs at certain crossed angles, wherein the ribs in the middle are thick to play a role in supporting and guiding, and the ribs on the upper side and the lower side are thin to mainly play a role in supporting non-woven fabrics. This structure product can only be used for the unilateral to lead and arrange, and the rib of both sides is thinner, and is less with the actual contact surface of non-woven fabrics, so the adhesion is limited, or current three-dimensional drainage net superposes two at least three-dimensional drainage nets through other structures such as welding or support piece to form the three-dimensional drainage net that compressive capacity is stronger.

SUMMERY OF THE UTILITY MODEL

Objects of the utility model

In view of the above problems, an object of the present invention is to provide a three-dimensional net which has excellent flow conductivity in both the longitudinal and transverse directions, has sufficient support for soft boundaries such as nonwoven fabrics, and is less likely to cause interlaminar slippage failure.

(II) technical scheme

As a first aspect of the present invention, the present invention discloses a three-dimensional net, mainly comprising:

the supporting ribs are fixedly connected to one side face of the first net layer, the supporting ribs and the first net layer are integrally formed, and the supporting ribs are discontinuous columns which are uniformly distributed in the longitudinal direction and the transverse direction.

In one possible embodiment, the first mesh layer includes a plurality of longitudinal ribs and a plurality of transverse ribs, and the longitudinal ribs and the transverse ribs are arranged to intersect with each other.

In a possible embodiment, the three-dimensional net further comprises a second net layer fixedly connected with one end of the support rib far away from the first net layer, the support rib and the second net layer are integrally formed, and at least one of the first net layer, the support rib and the second net layer is suitable for connecting non-woven fabrics.

In one possible embodiment, the second mesh layer includes a plurality of longitudinal ribs and a plurality of transverse ribs, and the longitudinal ribs and the transverse ribs are arranged to intersect with each other.

In one possible embodiment, the second web layer comprises a plurality of longitudinal ribs, and the longitudinal ribs are arranged at equal intervals.

In one possible embodiment, the second net layer comprises a plurality of transverse ribs which are arranged at equal intervals.

In one possible embodiment, the longitudinal ribs and the transverse ribs are rounded at the intersections.

In one possible embodiment, the support ribs have a cross section which gradually increases from top to bottom.

In one possible embodiment, the height of the support rib is set to be 3mm to 20 mm.

In a possible embodiment, the longitudinal ribs are set to have a width of 1mm to 5mm and a thickness of 1mm to 3mm, and the transverse ribs are set to have a width of 1mm to 5mm and a thickness of 1mm to 3 mm.

(III) advantageous effects

The utility model discloses a three-dimensional net, which has the following beneficial effects: the utility model discloses with first stratum reticulare, brace rod and second stratum reticulare integrated into one piece design, first stratum reticulare and second stratum reticulare are provided with a plurality of and indulge rib and cross rib and intercrossing, thereby all there is splendid water conservancy diversion performance on indulging transversely, can extensively be used for liquid, gaseous leading row, and there is sufficient support to soft boundaries such as non-woven fabrics, can solve because soft boundary is absorbed in fluid passage, the problem that leads to the water conservancy diversion performance to descend by a wide margin, area of contact such as upper and lower two-layer and non-woven fabrics is big, bonding strength is good, the difficult production layer is slided and is destroyed, set up the brace rod between the upper and lower two-layer, can fully resist and indulge horizontal external force and destroy.

Drawings

The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining and illustrating the present invention and should not be construed as limiting the scope of the present invention.

FIG. 1 is a schematic three-dimensional structure of a three-dimensional mesh according to the present disclosure;

FIG. 2 is a schematic three-dimensional structure of a first mesh layer, support ribs and a second mesh layer disclosed by the utility model;

FIG. 3 is a schematic three-dimensional structure of the second web layer of the present disclosure as longitudinal ribs disposed at equal intervals;

fig. 4 is a schematic three-dimensional structure of the second mesh layer disclosed by the utility model, wherein the second mesh layer is cross ribs arranged at equal intervals.

Reference numerals: 100. a first mesh layer; 110. longitudinal ribs; 120. a cross rib; 130. rounding off; 200. supporting ribs; 300. and a second mesh layer.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.

It should be noted that: in the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some embodiments of the present invention, not all embodiments, and features in embodiments and embodiments in the present application may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.

A first embodiment of a three-dimensional mesh of the present disclosure is described in detail below with reference to fig. 1-4. The embodiment is mainly applied to the drainage network, can realize excellent flow guide performance in longitudinal and transverse directions, has enough support for soft boundaries such as non-woven fabrics and the like, and is not easy to generate interlayer sliding damage.

As shown in fig. 1, the present embodiment mainly includes a first network layer 100 and a plurality of support bars 200, wherein the support bars 200 are fixedly connected to a side of the first network layer 100, and the support bars 200 are integrally formed with the first network layer, one end of the support bars 200 is fixedly connected to a side of the first network layer and the support bars 200 extend in a certain amount in a direction away from the first network layer 100, the support bars 200 are discontinuous columns uniformly arranged in longitudinal and transverse directions to form a support layer, and the other end of the support bars 200 is connected to a non-woven fabric, so as to increase a contact area of the non-woven fabric and increase bonding strength, and prevent interlayer slippage and damage.

In one embodiment, the product is tested for compressive strength according to ASTM D1621, the three-dimensional mesh having a compressive strength of 300kPa to 3000 kPa.

In one embodiment, the three-dimensional mesh is also used in conjunction with a soft boundary material such as a composite nonwoven or a water-permeable geotextile.

In an embodiment, the three-dimensional net further comprises a second net layer 300, the second net layer 300 is fixedly connected with one end of the support rib 200 far away from the first net layer 100, the support rib 200 and the second net layer 300 are integrally formed, the support ribs 200 are discontinuous columns uniformly arranged in the longitudinal direction and the transverse direction, so that a support layer is formed, interlayer slippage between the first net layer 100 and the second net layer 300 can be effectively prevented, and preferably, the height of the support rib 200 is set to be 3mm-20 mm.

In one embodiment, the end faces of the first and

second web layers

100 and 300 away from the support rib 200 are used for connecting with a non-woven fabric, so that the contact area of the non-woven fabric is increased, the bonding strength is increased, and the interlayer slippage failure is not easy to occur.

In one embodiment, the support ribs 200 have a gradually increasing cross-section from top to bottom. The length direction of the support rib 200 is the same as the inclined direction of the product laying surface, and if there is no obvious inclined surface, the support rib 200 is preferably a cylinder or a pipe cone with a gradually increasing cross section from top to bottom.

In one embodiment, the support rib 200 may be a rectangular parallelepiped, a column, a profile, or the like.

In one embodiment, the first web layer 100 includes a plurality of longitudinal ribs 110 and a plurality of transverse ribs 120, the longitudinal ribs 110 and the transverse ribs 120 are disposed to intersect with each other, and the longitudinal ribs 110 and the transverse ribs 120 are integrally formed, wherein preferably, any two adjacent longitudinal ribs 110 are spaced apart by 5mm to 20mm, and any two adjacent transverse ribs 120 are spaced apart by 5mm to 20 mm. The width of the longitudinal rib 110 is 1mm-5mm, the width of the transverse rib 120 is 1mm-5mm, the thickness of the longitudinal rib 110 is 1mm-3mm, the thickness of the transverse rib 120 is 1mm-3mm, excellent flow guiding performance can be achieved in the longitudinal direction and the transverse direction, the difference in the longitudinal direction and the transverse direction is small, and the guide bar can be widely used for guiding and discharging liquid and gas.

In one embodiment, the second web layer 300 includes a plurality of longitudinal ribs 110 and a plurality of transverse ribs 120, the longitudinal ribs 110 and the transverse ribs 120 are disposed to intersect with each other, and the longitudinal ribs 110 and the transverse ribs 120 are integrally formed, wherein preferably, any two adjacent longitudinal ribs 110 are spaced apart by 5mm to 20mm, and any two adjacent transverse ribs 120 are spaced apart by 5mm to 20 mm. The width of the longitudinal rib 110 is 1mm-5mm, the width of the transverse rib 120 is 1mm-5mm, the thickness of the longitudinal rib 110 is 1mm-3mm, the thickness of the transverse rib 120 is 1mm-3mm, excellent flow guiding performance can be achieved in the longitudinal direction and the transverse direction, the difference in the longitudinal direction and the transverse direction is small, and the guide bar can be widely used for guiding and discharging liquid and gas.

In one embodiment, the longitudinal ribs 110 and the transverse ribs 120 are rounded at the intersections 130, so that stress concentration is reduced, damage to the nonwoven fabric is avoided, and force transmission is facilitated, and the rounded corners 130 are designed to better integrate the longitudinal ribs 110 and the transverse ribs 120.

As shown in fig. 1, in one embodiment, the three-dimensional net includes a first net layer 100 and a plurality of support ribs 200, wherein the first net layer 100 is formed by intersecting and integrating a plurality of longitudinal ribs 110 and a plurality of transverse ribs 120, the support ribs 200 are located on the first net layer 100, one end of the support ribs 200 is fixedly connected to the first net layer 100, the first net layer 100 and the support ribs 200 are integrated, and a non-woven fabric is fixedly connected to a surface of the first net layer 100 away from the support ribs 200. Tests show that the three-dimensional net can bear tensile force in the longitudinal direction and the transverse direction.

As shown in fig. 2, in one embodiment, the three-dimensional net includes a first net layer 100, a plurality of support bars 200 and a second net layer 300, wherein the first net layer 100 and the second net layer are arranged by a plurality of longitudinal ribs 110 and a plurality of transverse ribs 120 crossing each other, the longitudinal ribs 110 and the transverse ribs 120 are integrally formed, any two adjacent longitudinal ribs 110 of the first net layer 100 and the second net layer 300 are arranged at a distance of 10mm, any two adjacent transverse ribs 120 are arranged at a distance of 10mm, the longitudinal ribs 110 are arranged at a width of 1.5mm, the transverse ribs 120 are arranged at a width of 2mm, the longitudinal ribs 110 are arranged at a thickness of 2mm, the transverse ribs 120 are arranged at a thickness of 1mm, the support bars 200 are arranged at an abutting surface of 4mm in length and 2.6mm in width in rectangle, the abutting surface of the second net layer 300 is arranged at a length of 6mm and a width of 2.6mm in rectangle, and the support bars 200 are in a trapezoidal or a cylindrical shape, the height of the support ribs is 4mm, and the support ribs 200 are uniformly spaced along the longitudinal ribs 110 and the transverse ribs 120, and the spacing distance is 10mm, so that the thickness of the whole three-dimensional net is 8 mm. After the three-dimensional net is tested, the longitudinal tensile strength of the three-dimensional net is 18kN/m, the transverse tensile strength of the three-dimensional net is 12kN/m, and the longitudinal hydraulic conductivity of the three-dimensional net is 10m²The transverse hydraulic conductivity is 8m2/h, and the compressive strength is 1000 kPa. From practical and economic considerations and in summary, the three-dimensional net is subjected to large tensile forces in both the longitudinal and transverse directions.

As shown in fig. 3, in an embodiment, the second web layer 300 can be designed to be composed of several longitudinal ribs 110 according to requirements, wherein the longitudinal ribs 110 are arranged at equal intervals, and preferably, any two adjacent longitudinal ribs 110 are arranged at intervals of 5mm to 20 mm.

Specifically, the three-dimensional net comprises a first net layer 100, support ribs 200 and a second net layer 300, wherein the second net layer 300 is provided with longitudinal ribs 110 at equal intervals, the first net layer 100 is formed by mutually crossing and integrally forming a plurality of longitudinal ribs 110 and a plurality of transverse ribs 120, the support ribs 200 are positioned between the first net layer 100 and the second net layer 300 and used for connecting the first net layer 100 and the second net layer 300, one end of each support rib 200 is fixedly connected with the first net layer 100, and the other end of each support rib 200 is fixedly connected with the second net layer 300, wherein the first net layer 100, the support ribs 200 and the second net layer 300 are integrally formed, one surface of the first net layer 100, which is far away from the support ribs 200, is fixedly connected with a non-woven fabric, and one surface of the second net layer 300, which is far away from the support ribs 200, is fixedly connected with a non-woven fabric. Tests show that the three-dimensional net can bear large tensile force in the longitudinal direction.

In one embodiment, as shown in fig. 4, the second web layer 300 can be designed to be composed of several cross ribs 120, wherein the cross ribs 120 are arranged at equal intervals, and preferably, any two adjacent cross ribs 120 are spaced at intervals of 5mm-20 mm.

Specifically, the three-dimensional net comprises a first net layer 100, support ribs 200 and a second net layer 300, wherein the second net layer 300 is provided with transverse ribs 120 at equal intervals, the second net layer 300 is formed by mutually crossing and integrally forming a plurality of longitudinal ribs 110 and a plurality of transverse ribs 120, the support ribs 200 are positioned between the first net layer 100 and the second net layer 300 and used for connecting the first net layer 100 and the second net layer 300, one end of each support rib 200 is fixedly connected with the first net layer 100, and the other end of each support rib 200 is fixedly connected with the second net layer 300, wherein the first net layer 100, the support ribs 200 and the second net layer 300 are integrally formed, one surface of the first net layer 100, which is far away from the support ribs 200, is fixedly connected with a non-woven fabric, and one surface of the second net layer 300, which is far away from the support ribs 200, is fixedly connected with a non-woven fabric. Tests show that the three-dimensional net can bear large tensile force in the transverse direction.

In one embodiment, the user can synthesize practicality, economy and demand, select the three-dimensional net of different structures to on the basis of avoiding three-dimensional net to cause destruction and inefficacy, practice thrift the cost.

In one embodiment, the nonwoven and the three-dimensional web may be secured by heat sealing.

In one embodiment, the three-dimensional net is manufactured in an integrated mode, after the mixed material is melted and plasticized by an extruder, the three-dimensional net which is integrally formed and has a cylindrical structure is extruded by a special die arranged on a head of the extruder, the three-dimensional net extruded from the special die is pulled into cooling water, and the three-dimensional net passes through a sizing sleeve to be cooled and sized, wherein the size of the sizing sleeve depends on the width of the three-dimensional net.

Specifically, a metal cylindrical sizing sleeve is arranged below a head of the extruder, the sizing sleeve is arranged in a cooling water tank, a cutter is arranged at one end, far away from the extruder, of the sizing sleeve below the water surface, a guide rail is arranged at the bottom of the water tank, the three-dimensional net with the cylindrical structure extruded by the extruder is pulled into the sizing sleeve in the cooling tank, after water-cooling sizing is carried out, the three-dimensional net with the cylindrical structure is split through the cutter, the split three-dimensional net is unfolded through the guide rail and conveyed to a rolling position, and the rolling position is used for rolling and packaging the three-dimensional net through a rolling machine.

In one embodiment, the design of the particular die depends on the type of flow directing gauze pad.

In one embodiment, the mixing includes: 90-95 parts of polymer resin, 1-3 parts of ultraviolet-resistant auxiliary agent, 1-3 parts of thermal-oxidative-aging-resistant auxiliary agent and 0-10 parts of reinforcing material, wherein the polymer resin can be preferably HDPE (high density polyethylene); the reinforcing material may be inorganic or organic and may be in the form of particles, flakes or fibers.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A three-dimensional mesh, comprising: the supporting ribs are fixedly connected to one side face of the first net layer, the supporting ribs and the first net layer are integrally formed, and the supporting ribs are discontinuous columns which are uniformly distributed in the longitudinal direction and the transverse direction.

2. The three-dimensional mesh according to claim 1, wherein said first mesh layer comprises a plurality of longitudinal ribs and a plurality of transverse ribs, said longitudinal ribs and said transverse ribs being disposed to intersect with each other.

3. The three-dimensional net according to claim 1, further comprising a second net layer fixedly connected with one end of the support rib away from the first net layer, wherein the first net layer, the support rib and the second net layer are integrally formed, and at least one of the first net layer, the support rib and the second net layer is suitable for connecting non-woven fabrics.

4. The three-dimensional mesh according to claim 3, wherein said second mesh layer comprises a plurality of longitudinal ribs and a plurality of transverse ribs, said longitudinal ribs and said transverse ribs being disposed crosswise to each other.

5. The three-dimensional mesh according to claim 3, wherein said second mesh layer comprises a plurality of longitudinal ribs, said longitudinal ribs being arranged at equal intervals.

6. The three-dimensional mesh according to claim 3, wherein said second mesh layer comprises a plurality of cross ribs, said cross ribs being equally spaced.

7. The three-dimensional mesh according to any one of claims 2 or 4, wherein the longitudinal ribs are rounded at the intersections with the transverse ribs.

8. The three-dimensional mesh according to claim 1, wherein said support ribs have a cross section gradually increasing from top to bottom.

9. The three-dimensional net according to any one of claims 1 or 8, wherein the height of the support rib is set to 3mm to 20 mm.

10. The three-dimensional net according to claim 2, wherein the longitudinal ribs are set to have a width of 1mm to 5mm and a thickness of 1mm to 3mm, and the transverse ribs are set to have a width of 1mm to 5mm and a thickness of 1mm to 3 mm.