KR20210112422A - Dustproof net for suppressing scattering dust generation at construction sites and structure thereof - Google Patents

Abstract

The present invention relates to a dustproof net for suppressing scattering dust generation in a construction site which has excellent dustproof performance by having an opening rate of less than 20%, an excellent physical property such as tensile strength and elongation, and more specifically, excellent durability and workability by having the excellent tensile strength and elongation of a weft direction, and an installation structure thereof. The dustproof net comprises: a net member composed of a weft yarn composed of bunches of filament yarns vertically arranged at constant intervals and warp yarn composed of the plurality of the filament yarns horizontally arranged at the constant intervals to fixate a position of the adjacent weft yarns; an upper finishing unit coupled while surrounding an upper portion of a circumference of the net member; and a lower finishing unit coupled while surrounding a lower portion of the circumference of the net member.

Description

Dustproof net for suppressing scattering dust generation at construction sites and structure thereof

The present invention relates to a dust protection net for suppressing scattering dust in a construction site and an installation structure thereof, and the opening ratio is lower than 20%, so that the vibration resistance is excellent, and the physical properties such as tensile strength and elongation are excellent, and in particular, tensile strength and elongation in the weft direction. It relates to a dustproof net for suppressing scattering dust in a construction site with excellent durability and workability and its installation structure.

In general, most of the air pollution that is a problem in construction sites is scattering dust, and scattering dust control is a major concern in the environment and air pollution problems.

Construction projects account for 22% of the nation's scattering dust. In particular, in the case of the metropolitan area, it was found that scattering dust accounts for 71.1% of the amount of fine dust generated. do. In addition, the number of complaints related to scattering dust generating workplaces is increasing every year, and the construction industry accounts for 91% of them. In addition, according to the Ministry of Employment and Labor in 2017, the proportion of pneumoconiosis among construction workers who were determined to be fatal accidents due to occupational diseases increased significantly from 3.85% in 2014 to 10.71% in 2015.

As such, there are many problems that occur due to scattering dust generated at construction sites. Currently, scattering dust at construction sites is managed in accordance with Article 43 of the Air Conservation Act, Article 44 of the Enforcement Decree of the Act, and Articles 57 and 58 of the Enforcement Rules (Installation of facilities and necessary measures to suppress the generation of scattering dust). .

On the other hand, as a measure to prevent scattering dust, installation of dust protection nets in scattering dust generating areas such as yards, washing wheels at the entrance of construction sites to prevent soil leakage on the road by construction vehicles, water washing facilities and watering measures at construction sites, and vehicles in the workplace In order to prevent the load from flying around, there are measures such as observing the speed of vehicle operation and installing the cover of the load box.

Among them, Patent Documents 0001 and 0002 have been proposed in relation to the installation of a dust protection net for preventing scattering dust.

Patent Document 0001 relates to an improved design of a dust blocking net that is installed vertically in various construction sites such as building construction and road construction to prevent dust from spreading to the outside. In a known dust network with a meriyas structure, a basic network is prepared by using polyethylene monofilament as an inserted yarn and a binding yarn, and polypropylene filament yarn significantly thicker than the inserted yarn of the basic network is added as an inserted yarn to insert polyethylene monofilament. It is possible to obtain a dust net with good dust blocking effect and to improve the strength of the dust net by forming double inserted yarns arranged in the oblique and transverse directions with respect to the yarn and polypropylene filament inserted yarns with respect to the binding yarn.

Patent document 0002 relates to a dustproof mesh structure for a building construction site that can effectively absorb and block dust by improving the structure of the dustproof mesh used in the building construction site. Weaving continuously and repeatedly from point to point 1, after weaving from the second point to the third point once, weaving from the fourth point to the third point makes a hexagonal knot, and from the third point to the second point After weaving, it is woven from the first point to the second point so that the hexagonal knot is repeated. When chestnut grain is applied, it is particularly strong against the sun and has a greater effect than other colors that generate electromagnetic waves.

In the case of Patent Documents 0001 and 0002, there is a problem in that the opening ratio is large, the vibration-proof effect is insufficient, and the tensile strength in the weft direction is low, so that the durability and workability are not good.

KR20-0333119Y1 (2003.11.04) KR20-0354090Y1 (2004.06.10)

The present invention for solving the problems of the prior art has excellent vibration resistance due to a low opening ratio of less than 20%, excellent physical properties such as tensile strength and elongation, and in particular, excellent tensile strength and elongation in the weft direction, such as durability and workability An object of the present invention is to provide an anti-vibration net for suppressing scattering dust in construction sites with excellent performance and an installation structure thereof.

The present invention for achieving the above object,

a mesh member consisting of a weft yarn arranged vertically at regular intervals and made of a bundle of filament yarns without twisting, and a plurality of filament yarns disposed left and right at regular intervals, with a slope for fixing the adjacent weft yarns;

an upper finishing part coupled to the upper edge of the mesh member while wrapping;

It provides a dustproof net for suppressing scattering dust at a construction site, characterized in that it comprises;

In particular, the weft yarn of the mesh member is preferably made of a filament bundle consisting of 15 to 20 filaments of 20 to 300 denier filaments.

And the inclination of the mesh member is preferably made of 15 to 20 strands of 5 to 150 denier filament yarn.

It is preferable that the interval of the inclination of the mesh member is made of 2 to 6 mm.

In addition, in order to improve the workability of the anti-vibration net, it is preferable that a plurality of fixing holes are formed at regular intervals in the upper end portion and the lower end portion.

The dustproof net for suppressing scattering dust in the construction site of the present invention is made of filament bundles without twisting of the weft yarn of the mesh member, so the opening ratio is less than 20%, so it is excellent in vibration resistance as well as the tensile strength and elongation in the weft direction. It has an excellent workability effect.

Hereinafter, an embodiment of a dust protection net for suppressing scattering dust in a construction site of the present invention and its installation structure will be described with reference to the drawings, and the scope of the present invention is not limited to the following examples.

1 is a view schematically showing an embodiment of a dust protection net for suppressing scattering dust at a construction site, and FIG. 2 is an enlarged view schematically showing an enlarged part of a mesh member of the dust protection net.

The dust protection net 10 for suppressing the generation of scattering dust at the construction site of the present invention is large as shown in FIG. 1 , and includes a mesh member 110 , an upper end part 130 , and a lower end part 150 .

The mesh member 110 consists of a weft yarn 112 consisting of a filament yarn bundle disposed vertically at regular intervals and without twisting as shown in FIG. It consists of a slope 114 for fixing the position.

As the weft yarn 112 is made of a filament bundle without twist, it can secure a low opening ratio and obtain an excellent vibration-proof effect, and has excellent tensile strength and elongation in the weft direction, so that it is not easily damaged when installed at a construction site. It has excellent durability and is not easily torn off by strong winds after installation.

In particular, the weft yarn 112 is preferably made of 15 to 20 strands of 20 to 300 denier filament yarn bundles.

When the filament yarn bundle constituting the weft yarn 112 is made of less than 15 strands, the aperture ratio is increased, the tensile strength and elongation are lowered, and there is a limit in obtaining an excellent anti-vibration effect. As the aperture ratio is greatly reduced, there is a problem in that the wind resistance increases, and the dust protection net structure may be damaged by strong winds.

In addition, the weft yarn 112 is preferably made of a filament yarn bundle made of a filament yarn of 20 to 300 denier in order to obtain an excellent anti-vibration effect and high tensile strength and elongation.

The filament yarn may be made of synthetic fibers such as nylon, polyethylene, polyester, PET, and polyamide, and may be used alone or in the form of a composite fiber.

And the warp 114 is made of a plurality of filament yarns disposed left and right at regular intervals to fix the position of the adjacent weft yarns 112 .

The warp 114 is preferably made of a plurality of filament yarn bundles as shown in FIG. 2 , and in particular, at this time, the warp 114 is preferably made of 15 to 20 strands of 5 to 150 denier filament yarn bundles.

The plurality of filament yarns constituting the warp 114 may be made of synthetic fibers such as nylon, polyethylene, polyester, PET, and polyamide, and may be used alone or in the form of composite fibers.

When the filament yarn bundle constituting the warp yarn 114 is less than 15, there is a problem in that the tensile strength and elongation in the warp direction are lowered. There is a problem in that the gap between (112) is widened, and the dust-proof effect is lowered.

In addition, the filament yarn constituting the warp 114 is preferably made of a filament yarn of 5 to 150 denier in order to obtain excellent tensile strength and elongation.

In addition, the weaving form of the warp 114 is not particularly limited, but it is preferable to fix the adjacent weft yarns 112 by a chain stitch method as shown in FIG. 2 . At this time, the warp 114 is made of a filament yarn bundle made of a plurality of filament yarns.

In addition, in order to prevent the warp 114 from slipping left and right along the weft yarn 112 by an external force and to improve tensile strength and elongation in the warp direction, the chain stitch warp 114 as shown in FIG. It is preferable to form in two lines.

And it is preferable that the interval of the inclination 114 constituting the mesh member 10 is 2 to 6 mm. When the spacing between the warp yarns 114 is less than 2 mm, the width of the filament bundle forming the weft yarns 112 exposed between the adjacent warps 114 is narrow, so that the gap formation between the filament yarns is limited when a strong wind blows, resulting in a large wind load. There is, when the interval of the warp 114 is more than 6mm, the width of the filament bundle forming the weft yarn 112 exposed between the adjacent warps 114 is wide, so there is a problem in that vibration resistance is reduced.

3 is an enlarged view schematically showing an enlarged part of another embodiment of the mesh member of the dustproof net.

As shown in FIG. 3, the warp 114 is corrected by crossing the yarns made of the filament yarn bundles adjacent to the warp yarns 114, and the warp 114 is a set of 15 to 20 filament yarns in close contact with each other. accomplish And the filament yarns constituting the set fix the yarn in a state in close contact with each other. And the interval between the slope 114 and the slope 114 is made of 2 to 6mm.

And the upper finishing part 130 is for reinforcing the upper edge of the mesh member 110 and uniformly distributing the tensile force when tensioning upward, and is sewn in a state surrounding the upper edge of the mesh member 110, It is joined by a method such as fusion bonding.

The upper finishing part 130 may be formed in a fabric, nonwoven fabric, or sheet form, and the material thereof is not particularly limited.

In addition, it is preferable that a plurality of fixing holes 132 for easy fixing to the crossbar using a fixing ring or the like are formed in the upper finishing part 130 at regular intervals. In particular, in order to prevent the fixing hole 132 from being easily torn, etc., it is preferable that a reinforcing ring for reinforcing the fixing hole wrapped around the fixing hole is provided.

Next, the lower finishing part 150 is for reinforcing the lower edge of the mesh member 110 and uniformly distributing the tensile force when tensioning to the lower side. It is joined by methods such as sewing, fusion, etc.

The lower finishing part 150 may be formed in a fabric, non-woven fabric, or sheet form, and the material thereof is not particularly limited.

In addition, it is preferable that a plurality of fixing holes 152 are formed at regular intervals like the upper closing portion 130 in the lower closing part 150 , and a reinforcing ring for reinforcing the fixing hole 152 is provided in a state surrounding the fixing hole 152 . .

The dust protection net 10 for suppressing the generation of scattering dust at the construction site of the present invention as described above is made of a filament bundle in which the weft yarn 112 of the mesh member 110 is not twisted, so that the opening ratio is less than 20%, so that the vibration resistance is excellent as well as the weft direction. It has excellent durability and workability due to its excellent tensile strength and elongation.

4 is a view schematically showing the installation structure of a dust protection net for suppressing scattering dust at a construction site of the present invention, and FIG. 5 is a view schematically showing a state in which the upper part of the dust protection net is fixed to the upper horizontal bar by the upper fixing part, FIG. 6 is a mango It is a view schematically showing a state in which the middle part of the mesh member is fixed to the support by the government.

The vibration protection net installation structure for suppressing the generation of scattering dust at the construction site of the present invention is configured to include a support 510 , an upper horizontal bar 530 , a lower horizontal bar 550 , and a vibration protection net 10 .

First, the support 510 is fixedly installed on the ground at regular intervals.

And the upper transverse bar 530 is fixed to the upper part of the support 510 in the horizontal direction by a fastening member, etc., and the lower transverse bar 550 is mounted on the support 510, which is the lower side of the upper transverse bar 530 . ) is fixed in the horizontal direction by a fastening member, etc.

Although not shown in the drawings, a vibration barrier or the like may be installed on the lower side of the lower horizontal bar 550 of the support 510 .

The anti-vibration net 10 may be fixedly installed between the upper horizontal bar 530 and the lower horizontal bar 550 to suppress the generation of fine dust generated at a construction site, a yard, and the like.

The anti-vibration network 10 is configured to include a mesh member 110 , an upper end part 130 , and a lower end part 150 as shown in FIG. 1 .

An upper portion of the vibration isolator 10 is fixed to the upper horizontal bar 530 by an upper fixing part 610 , and a lower portion of the vibration isolating mesh 10 is fixed to the lower horizontal bar 550 by a lower fixing part 620 . ) and installed in a tensioned state.

The upper fixing part 610 and the lower fixing part 620 suffice as long as it is possible to fix the upper and lower portions of the vibration isolator 10 to the upper horizontal bar 530 and the lower horizontal bar 550 , respectively. .

On the other hand, in order to easily fix the upper and lower portions of the vibration isolator 10 to the upper horizontal bar 530 and the lower horizontal bar 550 in a tensioned state, the upper fixing part 610 and the lower fixing part ( 620), as shown in FIG. 4, is preferably formed in the shape of an 'S'-shaped hook.

Specifically, the upper fixing part 610 is formed integrally with the upper locking part 612 that is caught and fixed to the upper horizontal bar 530 on the upper side, and the upper part is integrally formed with the lower part of the upper locking part 612. It is inserted into the fixing hole formed in the upper finishing part 130 of the vibration isolating net 10 and is composed of a lower engaging fixing part 614 for fixing the upper part of the vibration isolating net 10 . And an end of the upper locking fixing part 612 is formed to be inclined upward and a guide inclined part 612a for guiding the insertion of the upper horizontal bar 530 is formed. And at the end of the lower engaging portion 614, a fixed inclined portion 614a formed to be inclined downward to prevent the upper finishing portion 130 of the anti-vibration net 10 from being separated is formed.

And the lower fixing part 620 is formed in the same shape as the upper fixing part (610).

And the mesh member 110 fixed in a tension state between the upper transverse bar 530 and the lower transverse bar 550 by the upper fixing part 610 and the lower fixing part 620 in strong wind, etc. In order to prevent the oscillation by the turbulence, it is preferable to fix the position of the middle of the mesh member 110 to the support 510 by the mesh fixing part 630 .

The mango part 630 has a C-shape in cross section, and guide inclined parts 632 that are inclined 114 to the outside are formed at both ends.

The middle of the mesh member 110 can be easily fixed to the support 510 by the mesh fixing part 630, thereby preventing the mesh member 110 from being shaken and torn by strong wind.

Next, in order to test the physical properties such as the opening ratio, tensile strength and elongation of the dust net for suppression of scattering dust at the construction site of the present invention, the dust net was manufactured as follows.

The weft yarn of the mesh member of the manufactured dustproof mesh was composed of a total of 16 filament yarn bundles consisting of 8 strands of 150 denier PET yarn and 8 strands of 150 denier polyester yarn.

The warp was composed of a bundle of 10 100 denier Nylon 6 filament yarns, and the adjacent weft yarns were fixed by chain stitching the warp, and the interval between adjacent warps was 4mm.

The aperture ratio was measured for 5 points of the dustproof net thus prepared, and the average aperture ratio was calculated, and the results are shown in Table 1.

dust screen Aperture rate (%) Point #1 17.96 Point #2 12.00 Point #3 16.06 Point #4 14.29 Point #5 18.32 average 15.73

In addition, the prepared vibration net was tested for tensile strength and elongation by the method of KS K 0520, and the results are shown in Table 2.

Test Items Test result inclined direction weft direction tensile strength
Maximum Load,
(N)
205
820 Shinto
Tensile strain at
Maximum Load, (%)
21.5
51.9

As can be seen in Tables 1 and 2, the vibration isolation net of the present invention has an average opening ratio of 15.73%, which is measured very low, and thus has excellent vibration-proof effect, and has excellent physical properties such as tensile strength in the weft direction of 820N and elongation of 51.9%. It can be seen that the durability against wind load is excellent.

10: dust screen,
110: mesh member,
130: upper finish;
150: lower finish,
510: support,
530: upper transverse bar,
550: lower horizontal bar

Claims (6)

a mesh member consisting of a weft yarn disposed up and down at regular intervals and made of a bundle of filament yarns without twisting, and a plurality of filament yarns disposed left and right at regular intervals with a warp for fixing the adjacent weft yarns;
an upper finishing part coupled to the upper edge of the mesh member while wrapping;
A dustproof net for suppressing scattering dust at a construction site, characterized in that it comprises;
According to claim 1,
The weft yarn of the mesh member is a dustproof net for suppressing scattering dust at a construction site, characterized in that it consists of a filament bundle consisting of 15 to 20 filaments of 20 to 300 denier filaments.
3. The method of claim 2,
The inclination of the mesh member is a dustproof net for suppressing scattering dust at a construction site, characterized in that it consists of 15 to 20 strands of 5 to 150 denier filament yarn.
4. The method of claim 3,
A dustproof net for suppressing scattering dust at a construction site, characterized in that the interval of the inclination of the mesh member is 2 to 6 mm.
5. The method according to any one of claims 1 to 4,
A dustproof net for suppressing scattering dust at a construction site, characterized in that a plurality of fixing holes are formed at regular intervals in the upper end portion and the lower end portion.
a support fixed to the ground at regular intervals;
an upper horizontal bar fixedly installed on the upper part of the support in a horizontal direction;
a lower transverse bar fixedly installed in the horizontal direction on the support, which is a lower side of the upper transverse bar;
The installation structure of a dust protection net for suppressing scattering dust at a construction site, comprising a; any one of claims 1 to 4, which is fixedly installed between the upper horizontal bar and the lower horizontal bar.

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