KR101569672B1 - Underground distribution line - Google Patents

Underground distribution line Download PDF

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Publication number
KR101569672B1
KR101569672B1 KR1020150077079A KR20150077079A KR101569672B1 KR 101569672 B1 KR101569672 B1 KR 101569672B1 KR 1020150077079 A KR1020150077079 A KR 1020150077079A KR 20150077079 A KR20150077079 A KR 20150077079A KR 101569672 B1 KR101569672 B1 KR 101569672B1
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KR
South Korea
Prior art keywords
tube
tube portion
lid
cable
portions
Prior art date
Application number
KR1020150077079A
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Korean (ko)
Inventor
장세건
Original Assignee
주식회사 넥스코
장세건
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Publication date
Application filed by 주식회사 넥스코, 장세건 filed Critical 주식회사 넥스코
Priority to KR1020150077079A priority Critical patent/KR101569672B1/en
Application granted granted Critical
Publication of KR101569672B1 publication Critical patent/KR101569672B1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor

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  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground electric cable, and more particularly, to an underground electric cable, which comprises a U-shaped tube portion having openings at both ends and an upper surface thereof and a lid covering an opened upper surface of the tube portion, A plurality of conduits; Clamp means for bundling and fixing the pipelines arranged in a line; And protection means installed inside the pipe to protect the cable from external vibrations.

Description

Underground cable {UNDERGROUND DISTRIBUTION LINE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an underground cable line for cable installation in a ground, and more particularly to an underground cable line that effectively protects a cable from vibration caused by earthquake-proof performance.

The applicant of the present invention has disclosed Korean Patent Registration No. 10-1344750 entitled " Cable Protection Pipeline "as an inventor. The prior art has an articulated pipeline connected to a straight pipeline so as to facilitate the construction in correspondence with various ground angles of the excavation surface and to form a bare part on the outer and inner sides of the pipeline bodies, The side surface and the inner side surface are also formed with a collapsed portion so as to more effectively resist the lateral pressure such as the increase in rigidity and the earth pressure and the vertical load acting on the upper portion.

However, Applicants of the present invention have found that the prior art is vulnerable to seismic vibrations. That is, when an earthquake occurs, the duct protecting the cable is vibrated by the vibration, and as a result, the cable is damaged.

Further, since the pipelines are arranged in close contact with each other, there is a problem that the pipelines do not adequately respond to shrinkage and expansion due to changes in the temperature of the ground, thereby damaging the pipelines or breaking water tightness. That is, when the conduit is contracted, a gap is formed between the conduits, so that the watertightness is broken, and when the conduit is expanded, pressure is applied to each other to cause breakage.

In addition, since cables having different thicknesses are stacked and laid along the bottom of the pipeline, the heat dissipation area of the cable is small, and the cable laid on the floor has a problem of insufficient heat dissipation.

Korean Patent Registration No. 10-1344750 entitled "Cable Protection Pipe"

SUMMARY OF THE INVENTION An object of the present invention is to provide an underground electric cable which can effectively protect a cable from vibration caused by earthquake-proof performance.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the particular embodiments that are described. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, There will be.

In order to achieve the above object, according to the present invention, there is provided a piping system including a U-shaped tube portion having openings at both ends and an upper surface, and a cover covering the opened upper surface of the tube portion, field; Clamp means for bundling and fixing the pipelines arranged in a line; And protection means installed inside the pipe to protect the cable from external vibration,

Wherein the protector has a recess formed at the center thereof and has a latching end, the latching end being stuck between the wall of the tube and the lid to be fixed across the wall of the tube, A plurality of spherical projections projecting from the spheres and penetrating the recesses; an annular-shaped grip which is provided at a distal end of the rod portion and which surrounds the cable with two portions opened between the hinges; .

Specifically, a first groove is formed in the lower portion of the lid to sandwich the wall of the tube portion, a horizontal protrusion is formed at one end of the lid, a second groove is formed at the other end of the lid to sandwich the horizontal protrusion, The horizontal protrusion and the second groove may be formed with first and second protrusions, respectively, which are engaged with each other when the cover shrinks and expands.

And a plurality of U-shaped first ribs passing through the walls and the bottom of the tube portion are protruded from the outer surface of the tube portion at a distance along the length of the tube portion, And a plurality of second ribs of the shape of a curved shape passing through a part of the first ribs are protruded and positioned between the first ribs and a drainage hole may be formed at the bottom of the tube.

A first projection formed on an outer surface of the tubular portion at one end thereof to form a U-shaped protuberance for receiving the other end of the tubular portion; and, when the other end of the tube is positioned on the first projection, The first rib and the first projection adjacent to the other end of the tube portion are in contact with each other and the clamping means can fix the channels arranged in a row by wrapping the first projection and the first rib in contact with the first projection.

Wherein a refraction channel having two connecting tube portions contacting the channels is further connected between the channels, and an outer surface of an end portion of one of the connecting tube portions has a U-shaped And the other of the joint tube portions is positioned on the first projecting portion and the clamp means ties the tubes and the joint tube portions to fix the tubes and the refraction ducts .

According to the present invention, since the cable is moved forward, backward, leftward and rightward according to the earthquake vibration by the protection means in which the cable is suspended from the pipeline, the pipeline is not damaged even when the pipeline is twisted, So that the breakage and watertightness are not broken, and the cable is installed hanging from the pipeline, so that the heat radiation of the cable is effectively performed.

1 is a view showing an underground cable line of the present invention.
Fig. 2 is a cross-sectional view showing the underground conductor line of the present invention in a transverse direction.
3 is a cross-sectional view of the underground cable according to the present invention taken along the longitudinal axis and showing a part of the cable except for the cable.
4 is a view showing a part of a modification of FIG.
5 is a sectional view showing a channel in the present invention.
FIG. 6 is a sectional view showing a coupling hole in the present invention. FIG.
FIG. 7 is a sectional view showing a refractory channel in the present invention. FIG.
8 is a view showing a protection means in the present invention.
FIG. 9 is a view showing a modification of the underground conductor line of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference symbols whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

As shown in the drawing, the underground conduit of the present invention includes a plurality of conduits 100. The ducts (100) are arranged in a line with each other in the ground to lay cables (1). The channel 100 may include a tube 110 and a lid 120. The tube portion 110 has a U-shaped opening at both ends and an upper surface, and the cover 120 covers the opened upper surface of the tube portion 110. The lid 120 may have an arcuate arcuate shape and have a rigid structure.

The lid 120 may have a first groove 121 formed at a lower portion thereof and may be firmly coupled to the first groove 121 with the wall end of the tube portion 110 inserted therebetween. A plurality of ribs (not shown) may be formed on the upper surface and the lower surface of the cover 120 along the length of the cover 120 so as to more effectively resist the increase in rigidity of the cover 120 and the vertical load acting on the upper portion. .

A horizontal protrusion 123 may protrude from one end of the lid 120 and a second recess 125 may be formed at the other end of the lid 120 to sandwich the horizontal protrusion 123. The horizontal protrusion 123 is fitted into the second groove 125 when the ducts 100 are arranged in a row and the horizontal protrusion 123 and the second groove 125 are fitted to each other when the lid 120 contracts and expands The first and second jaws 126 and 127 may be respectively formed (refer to FIG. 3).

When the lid 120 is contracted, the first and second jaws 126 and 127 are engaged with each other. When the lid 120 is expanded, the first and second jaws 126 and 127 are engaged with the lid 120 The watertightness is ensured even when the temperature of the ground is changed, and the lid 120 is not damaged.

A plurality of U-shaped first ribs 111 may be formed on the outer surface of the tube 110 at distances along the length of the tube 110. The first ribs 111 may be formed through walls and bottoms of the tube portion 110.

A plurality of second ribs 113 may be formed on the inner surface of the tube portion 110 along the length of the tube portion 110. The second ribs 113 are formed in a curved shape through the respective walls and a part of the bottom of the tube portion 110 and are positioned between the first ribs 111.

The first ribs 111 and the second ribs 113 reinforce the structure of the tube 110 at the inside and outside of the tube 110 so as to effectively increase the rigidity of the tube 110 and to protect side pressure such as earth pressure .

The portion of the first rib 111 formed at the bottom of the tube 110 minimizes the area of the bottom of the tube 110 which is in contact with the bottom of the tube 110 by supporting the bottom of the tube 110, So that the foreign matter can be easily avoided, and by maintaining the horizontal portion of the pipe portion 110, the pipes 100 can be arranged without being shifted from each other.

At least one drainage hole 115 may be formed at the bottom of the tube 110 to drain the water accumulated on the bottom of the tube 110 to the outside.

A first protrusion 117 may be formed on the outer surface of one end of the tube 110 via a wall of the tube 110 and the bottom of the tube 110. The first protrusion 117 may have a U- When the other end of the tube portion 110 is placed on the first projection 117 by the arrangement of the channels 100, the first rib 117 adjacent to the other end of the tube portion 110 abuts against the first projection 117. The first projection 117 allows the tube section 110 to be arranged horizontally and prevents the tube section 110 from being easily detached from the earthquake vibration.

The first rib 111a is connected to the first protrusion 117 so as to be in contact with the first rib 111. The first rib 111a is connected to the first protrusion 117, Thereby forming the same shape as the rib 111. That is, the first ribs 111a and the first protrusions 117 form the shape of the first ribs 111 when the first ribs 111 are cut in a half-cut shape.

4, the other end of the tube portion 110 may be placed on the first protrusion 117 so as to maintain an interval from one end of the tube portion 110, so that the tube portion 110 is not damaged during expansion .

The pipelines (100) arranged in a line are fixed to the clamping means (200). The clamp means 200 fixes the pipelines 100 arranged in a line by enclosing the first protrusion 117 and the first rib 111a. The clamping means 200 may include a U-shaped body portion 210 having openings at both ends and an upper surface thereof and a lid portion 220 covering the opened upper surface of the body portion 2101. In the body portion 210, A first rib groove 211 for engaging the first rib 117a and the first rib 111a is formed and a second rib groove 221 for fitting the rib of the lid 120 is formed in the lid 220, The pipes 100 can be firmly bound so as not to be detached. The body portion 210 of the clamp means 200 and the lid portion 220 are firmly assembled using a bolt fastening method or the like so that the pipelines 100 can be securely fastened.

A refraction conduit 300 having two first and second joining tube portions 310 and 320 contacting the conduits 100 may be connected between the conduits 100. [ The refraction conduit 300 may be installed between the conduits 100 passing through the bent or bent section to protect the cable 1. [

The refraction channel 300 includes a spherical portion 330 and the first and second joint tubular portions 310 and 320 are integrally connected to the spherical portion 330 and the spherical portion 330 has two portions It is possible to cope with a bent or bent section by being assembled.

For example, the spherical portion 330 may include a first hemispherical portion 331 and a second hemispherical portion 333, and the first and second hemispherical portions 331 and 333 may include a clamp band And can be firmly fixed.

The first and second hemispherical portions 331 and 333 may be composed of body portions 331a and 333a and lid portions 331b and 333b covering the body portions 331a and 333a, The two connecting pipes 310 and 320 may also include a U-shaped body portion 311 and an arcuate lid portion 312 or 322 covering the body portion 311 and 321.

The body portions 311 and 321 of the first and second joint tube portions 310 and 320 are integrally connected to the body portions 331a and 333a of the first and second hemispherical portions 331 and 333, The lid portions 312 and 322 of the first and second joint tube portions 310 and 320 can be integrally connected to the lid portions 331b and 333b of the first and second hemispherical portions 331 and 333 have.

The body portion 311 and the cover portions 312 and 322 of the first and second joint tube portions 310 and 320 may be formed as ribs to secure the structure and the body portion 311 The ribs of the cover portions 312 and 321 may be formed in the same shape as the ribs 111 of the tube portion 110 and the ribs of the cover portions 312 and 322 may be formed in the same shape as the ribs of the cover 120. [

The lid portions 312 and 322 of the first and second joint pipe portions 310 and 320 may be formed with grooves for inserting the walls of the body portions 311 and 321, 310 are formed with the same groove 314 as the second groove 125 having the second step 127 of the lid 120 so that the horizontal protrusion of the lid 120 of the channel 100 And a horizontal protrusion 324 which is the same as the horizontal protrusion 123 having the first protrusion 126 of the lid 120 is formed in the lid portion 322 of the second joint pipe portion 320, Can be fitted into the second groove (125) of the cover (120).

A second protruding portion 340 may be formed on the outer surface of the end of the body portion 311 of the first joint tube portion 310. The second protruding portion 340 may form a U-shaped protuberance for resting the other end of the tube portion 110. The second protrusion 340 has the same shape as the rib 111 of the tube 110 in contact with the rib of the body 311. The second projecting portion 340 allows the tube portion 110 and the first joint tube portion 310 to be arranged horizontally and prevents the tube portion 110 and the first joint tube portion 310 from being easily separated from the seismic vibration do.

The end of the body portion 321 of the second joint tube portion 320 is positioned at the first projection 117 of the tube portion 110. [ The first protrusion 117 has the same shape as the rib 111 of the tube 110 in contact with the rib of the body 321. The body portion 321 is placed on the first protrusion 117 so as to be aligned with the tube portion 110 and can not be easily separated from the earthquake vibration.

The clamping means 200 tightly fixes the channels 100 and the refraction duct 300 by bundling the ducts 100 and the first and second joint pipe portions 310 and 320 respectively.

In the meantime, the present invention includes a protection means (400) installed inside the pipeline (100) to protect the cable (1) from external vibrations.

The protective means 400 has a concave portion 411 formed at the center thereof and has a pivotal locking end portion 413 and the locking end portion 413 is stuck and fixed between the wall of the pipe portion 110 and the lid 120, A concave portion 411 protruding from the concave portion 420 and a concave portion 411 protruding from the concave portion 411 of the support base 410 Shaped grip portion 430 which surrounds the cable 1 and which is provided at the distal end of the rod portion 430 and has two portions 443 and 445 extending between the hinges 441, (440).

The portion 415 of the support table 410 between the recess 411 and the engagement end 413 is inclined downward from the recess 411 toward the engagement end 413 so as to extend from the wall of the tube 110 And the spherical body 420 may be formed in any one of a circular or semicircular shape that can be formed along the shape of the recess 411. [

2, the engaging end portion 413 is placed on the second rib 113 of the tube portion 110 and is stuck from the lid 120 to fix the support 410. As shown in Fig.

The grip portion 440 is composed of a fixed portion 443 and a rotating portion 445. The fixed portion 443 is connected to and fixed to the bar portion 430 and the rotating portion 445 is fixed to the fixed portion 443 through the hinge 441. [ And the cable 1 is wrapped around the portion 443. The fixing portion 443 and the rotating portion 445 are tightly coupled by fastening bolts, nuts, and the like to the end portions 443a and 445a, so that the cable 1 can be safely wrapped.

The protection means 400 may be constructed such that the cable 1 is suspended in the pipeline 100 so that when the earthquake vibrations are generated, the spherical portion 420 containing the grab portion 440 in the concave portion 411, The cable 1 moves back and forth, right and left according to the earthquake vibration, so that the cable 1 is not damaged even if the duct 100 is twisted. The protection means (400) also allows the cable (1) to radiate heat from all directions.

9, the tube portion 100 can be divided into two spaces S1 and S2 by forming a partition wall 170 in the middle, and the spaces S1 and S2 of the tube portion 100 are divided into two spaces S1 and S2, The protective means 400 can be installed and the protective means 400 can be firmly supported by integrally connecting the bent ends 413 of the support 410 placed on the barrier 170. The lid 120 may be formed by protruding a protrusion contacting the end portion of the partition wall 170 so that the protruding end portion 413 of the supporter 410 placed on the partition wall 170 may be stuck and fixed.

As described above, according to the present invention, since the cable 1 is moved forward, backward, leftward, and rightward according to the earthquake vibration by the protection means 400 that hangs the cable 1 from the pipeline 100, The cable 1 does not break and the cable 1 does not break the waterproofness and water tightness in accordance with the temperature change of the ground due to the contraction and expansion of the duct 100. Therefore, .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. It will be possible. The scope of the present invention is defined by the appended claims, and all differences within the scope of the claims are to be construed as being included in the present invention.

1: cable 100: channel
110: tube portion 111, 111a: first rib
113: second rib 115: drain
117: first protrusion 120: cover
121: first groove 123: horizontal projection
125: second groove 126: first jaw
127: second jaw 200: clamp means
300: refraction conduit 310: first junction tube
320: second joint tube part 330:
340: second protrusion 400: protective means
410: Support base 411:
413: Engagement end 420: Sphere
430: bar 440:
441: Hinge 443: Fixed portion
445:

Claims (5)

A plurality of pipes arranged in a line and forming a ground line for laying a cable, the pipe being formed of a U-shaped tube portion having openings at both ends and an upper surface, and a cover covering an opened upper surface of the tube portion;
Clamp means for bundling and fixing the pipelines arranged in a line; And
And protection means installed inside the pipe to protect the cable from external vibration,
The protection means
A support base having a concave portion formed at its center and having a pivotal engagement end, the support end being stuck between the wall of the pipe portion and the lid and fixed across the wall of the pipe portion,
A sphere positioned in the recess of the support,
A bar portion projecting from the sphere and passing through the recess,
And a ring-shaped grip portion which is provided at the tip of the bar portion and surrounds the cable so that two portions are opened and closed with a hinge therebetween,
And a plurality of first U-shaped ribs passing through the walls and the bottom of the tube portion are protruded from the outer surface of the tube portion with a distance along the length of the tube portion,
Wherein a plurality of second ribs of a cubic shape passing through each of the walls and a part of the bottom of the tube portion are protrudingly formed on the inner surface of the tube portion and located between the first ribs,
A drainage hole is formed in the bottom of the tube portion,
Wherein a first U-shaped protrusion forming a protuberance for resting the other end of the tube portion is formed on an outer surface of one end of the tube portion via walls and bottoms of the tube portion,
When the other end of the tube portion is positioned on the first projection portion, the first rib and the first projection portion adjacent to the other end of the tube portion are in contact with each other,
Wherein the clamping means fixes the lines arranged in a line by surrounding the first projecting portion and the first rib contacting the first projecting portion.
The method according to claim 1,
A first groove for holding a wall of the tube portion is formed in a lower portion of the lid, a horizontal protrusion is formed at one end of the lid, a second groove for inserting the horizontal protrusion is formed at the other end of the lid, And the first groove and the second groove are formed in the second groove to correspond to each other when the lid shrinks and expands.
delete delete The method according to claim 1,
A refraction conduit having two connecting tube portions contacting the conduits is further connected between the conduits,
A second protruding portion having a U-shape is formed on an outer surface of an end portion of one of the connecting tube portions to form a tuck that rests the other end of the tube portion,
And a joint tube portion of the other of the joint tube portions is positioned in the first projection,
Wherein the clamping means binds the channels and the joint tube portions to fix the channels and the refraction channel.
KR1020150077079A 2015-06-01 2015-06-01 Underground distribution line KR101569672B1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101895753B1 (en) * 2018-03-21 2018-09-06 (주)국제광엔지니어링 Boundary stone carrying cables
KR101975999B1 (en) * 2019-02-22 2019-05-07 삼성유비스 주식회사 underground mounted wire protector for apartment houses
KR102247082B1 (en) 2021-01-12 2021-04-30 (주)세정이에프씨 Underground distribution line structure
KR102422360B1 (en) * 2021-04-02 2022-07-19 (주)케이제이종합감리 Device for protecting underground power cable of apartment
KR102550471B1 (en) 2022-09-01 2023-07-03 주식회사 길종합건축사사무소이엔지 Underground distribution line structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101344750B1 (en) * 2013-11-06 2013-12-24 주식회사 파스텍 Trough for protecting cable

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101344750B1 (en) * 2013-11-06 2013-12-24 주식회사 파스텍 Trough for protecting cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101895753B1 (en) * 2018-03-21 2018-09-06 (주)국제광엔지니어링 Boundary stone carrying cables
KR101975999B1 (en) * 2019-02-22 2019-05-07 삼성유비스 주식회사 underground mounted wire protector for apartment houses
KR102247082B1 (en) 2021-01-12 2021-04-30 (주)세정이에프씨 Underground distribution line structure
KR102422360B1 (en) * 2021-04-02 2022-07-19 (주)케이제이종합감리 Device for protecting underground power cable of apartment
KR102550471B1 (en) 2022-09-01 2023-07-03 주식회사 길종합건축사사무소이엔지 Underground distribution line structure

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