KR102505985B1 - Shock Absorber for Underground Distribution Cable - Google Patents

Shock Absorber for Underground Distribution Cable Download PDF

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Publication number
KR102505985B1
KR102505985B1 KR1020220023714A KR20220023714A KR102505985B1 KR 102505985 B1 KR102505985 B1 KR 102505985B1 KR 1020220023714 A KR1020220023714 A KR 1020220023714A KR 20220023714 A KR20220023714 A KR 20220023714A KR 102505985 B1 KR102505985 B1 KR 102505985B1
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South Korea
Prior art keywords
band
vertical
cable
pin
binding band
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KR1020220023714A
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Korean (ko)
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위명희
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주식회사 나로이엔씨
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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
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/10—Installations of electric cables or lines in or on the ground or water in cable chambers, e.g. in manhole or in handhole
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The present invention relates to an underground power distribution cable buffer device for construction which can immediately restore a binding band to a state in which the binding band is tight by an elastic restoration force of a tensile spring when the binding band installed in a power cable is loosened in case of an earthquake. The underground power distribution cable buffer device comprises: a band hook groove (44) formed by cutting a convex surface, formed on a lower surface of a band tensile plate (42), in an eleventh shape along a longitudinal direction and deforming a cut portion to a more gentle curved shape than the band tensile plate (42) and configured to prevent separation of the binding band; and chamfered portions (62, 72) individually formed on facing surfaces of a pin head (61) and a flange (71).

Description

건축용 지중배전 케이블 완충장치{Shock Absorber for Underground Distribution Cable}Architectural underground distribution cable shock absorber {Shock Absorber for Underground Distribution Cable}

본 발명은 전력케이블을 지지하는데 이용되는 건축용 지중배전 케이블 완충장치에 관한 것으로, 더욱 상세하게는 지진시 전력케이블에 설치된 결속밴드가 이완되는 경우 인장스프링의 탄성복원력에 의해 결속밴드가 팽팽한 상태로 즉시 복원될 수 있도록 한 건축용 지중배전 케이블 완충장치에 관한 것이다.The present invention relates to an underground power distribution cable buffer for construction used to support power cables, and more particularly, when a binding band installed on a power cable is relaxed during an earthquake, the binding band is immediately tightened by the elastic restoring force of a tension spring. It relates to an underground distribution cable buffer for construction that can be restored.

일반적으로 건축물의 지중배전에 사용되는 전력케이블은 소규모인 경우에는 지중에 매설되는 파형관을 이용해서 포설하고 있으나 용량이 크고 선로가 많은 경우에는 설치와 관리가 용이한 전력구를 이용하고 있다.In general, power cables used for underground distribution of buildings are laid using corrugated pipes buried in the ground in the case of small scale, but in the case of large capacity and many lines, power cables that are easy to install and manage are used.

이와 같은 전력구에는 양쪽 또는 한쪽 벽면에 수평하게 설치되는 케이블 받침대를 이용해서 전력케이블을 다단으로 포설하고 있으며, 유지 및 보수를 위해 전력구의 중앙 또는 한쪽을 통로로 이용하고 있다.In such a power outlet, power cables are laid in multiple stages using cable supports installed horizontally on both or one side walls, and the center or one side of the power outlet is used as a passage for maintenance and repair.

이러한 종래 케이블 받침대의 일예를 첨부도면 도1에 나타내었으며, 이를 참조면, 전력구(10)의 수직 벽면에 설치되는 수직앵글(12)에 케이블 받침대(14)를 볼트(16) 및 너트와 같은 체결물에 의해 수평하게 설치한 다음 전력케이블(도시생략)을 케이블 받침대(14) 위에 올리면서 전력구(10)를 따라 포설하도록 되어 있었다.An example of such a conventional cable support is shown in FIG. 1 in the accompanying drawing, and as a reference, the cable support 14 is installed on the vertical angle 12 installed on the vertical wall of the power outlet 10 using bolts 16 and nuts. It was installed horizontally by means of a fastener and then laid along the power outlet 10 while raising the power cable (not shown) on the cable stand 14.

또, 케이블 받침대(14)에 올려진 전력케이블이 케이블 받침대(14)로부터 이탈되는 것을 방지하기 위한 결속밴드로 전력케이블과 케이블 받침대(14)를 묶어서 고정하고 있었다.In addition, the power cable and the cable support 14 are tied and fixed with a binding band to prevent the power cable placed on the cable support 14 from being separated from the cable support 14 .

그러나, 이와 같은 종래기술은 지진시 케이블 받침대(14)로부터 전력케이블로 전달되는 진동에너지를 중간에서 흡수할 수 없는 구조로 되어 있기 때문에 전력케이블이 진동에 의해 크게 흔들리면서 절연피복이 손상되는 문제점이 있었다.However, since this prior art has a structure that cannot absorb the vibration energy transmitted from the cable support 14 to the power cable in the middle during an earthquake, the power cable shakes greatly due to vibration and the insulation coating is damaged. .

또, 종래기술은 지진시 흔들리는 전력케이블에 의해 결속밴드가 쉽게 이완되면서 전력케이블이 옆으로 이동하고, 전력케이블 간의 충돌로 인해 절연피복이 손상되면서 누전되는 문제점이 있었다.In addition, in the prior art, as the binding band is easily relaxed by the shaking power cable during an earthquake, the power cable moves sideways, and the insulation coating is damaged due to a collision between the power cables, causing a short circuit.

국내 등록특허 제10-1484722호(공고일 2015.01.20.)Domestic Patent Registration No. 10-1484722 (Announcement date 2015.01.20.) 국내 등록특허 제10-1597157호(공고일 2016.02.24.)Domestic Patent Registration No. 10-1597157 (Announcement date 2016.02.24.) 국내 등록특허 제10-1699714호(공고일 2017.01.25.)Domestic Patent Registration No. 10-1699714 (Announcement Date 2017.01.25.) 국내 등록특허 제10-1861533호(공고일 2018.05.28.)Domestic Patent Registration No. 10-1861533 (Announcement date 2018.05.28.) 국내 등록특허 제10-1994328호(공고일 2019.06.28.)Domestic Patent Registration No. 10-1994328 (Announcement date 2019.06.28.)

본 발명은 상기와 같은 문제점을 해결하기 위하여 이루어진 것으로, 그 목적은 지진시 전력케이블에 가해지는 충격에너지를 일부 상쇄시킴으로써 전력케이블을 보호할 수 있고, 지진시 전력케이블의 움직임에 의해 이완되는 결속밴드를 팽팽한 상태로 즉시 복원해서 결속밴드가 지속적으로 인장력을 유지할 수 있는 건축용 지중배전 케이블 완충장치를 제공함에 있다.The present invention has been made to solve the above problems, and its object is to provide a binding band that can protect a power cable by partially offsetting the impact energy applied to the power cable during an earthquake and is relaxed by the movement of the power cable during an earthquake. It is to provide an underground distribution cable buffer for construction in which the binding band can continuously maintain tensile force by immediately restoring the tensioned state.

삭제delete

이러한 본 발명의 목적을 달성하기 위한 건축용 지중배전 케이블 완충장치는, 케이블 받침대의 수직면에 밀착되어 미끄러지면서 승강되는 승강꺾쇠; 승강꺾쇠에 형성되는 수직장공; 승강꺾쇠의 상단에 형성되고, 결속밴드에 의해 케이블 받침대에 지지된 전력케이블과 함께 감겨서 결속되며, 아래쪽을 향해 볼록한 원호형의 밴드인장판; 밴드인장판의 양단에 형성되는 한 쌍의 컬링부; 컬링부에 각각 부분 압입되는 한 쌍의 상부걸림핀; 수직장공을 통해 케이블 받침대의 수직면에 설치되는 가이드핀; 가이드핀의 일측단에 형성되고, 승강꺾쇠의 표면에 밀착되는 핀헤드; 가이드핀과 상하방향으로 거리를 두고 위치되고, 수직장공을 통해 케이블 받침대의 수직면에 설치되는 하부걸림핀; 하부걸림핀의 외주면에 형성되고, 승강꺾쇠의 표면에 밀착되는 플랜지; 상부걸림핀과 하부걸림핀에 양단이 걸리고, 서로 브이자 모양으로 엇갈리는 한 쌍의 인장스프링을 포함하는 것에 있어서,
상기 밴드인장판의 저면에 형성된 볼록한 면을 길이방향을 따라 십일자 모양으로 절개한 다음 절개부를 밴드인장판보다 완만한 곡면으로 변형시켜서 형성되고, 결속밴드의 이탈을 방지하는 밴드걸림홈; 핀헤드와 플랜지의 마주보는 면에 각각 형성되는 면취부를 포함하는 특징이 있다.An underground distribution cable buffer for construction to achieve the object of the present invention includes a lifting bracket that is lifted and lowered while sliding in close contact with a vertical surface of a cable support; Vertical long hole formed in the lifting bracket; Formed at the upper end of the lifting bracket, wound and bound together with the power cable supported by the cable support by the binding band, and convex downwards arc-shaped band tension plate; A pair of curling parts formed at both ends of the band tension plate; A pair of upper locking pins that are partially press-fitted to the curling part; Guide pins installed on the vertical surface of the cable support through the vertical hole; A pin head formed at one end of the guide pin and in close contact with the surface of the lift bracket; A lower locking pin positioned at a distance from the guide pin in the vertical direction and installed on the vertical surface of the cable support through the vertical hole; A flange formed on an outer circumferential surface of the lower locking pin and in close contact with the surface of the lifting bracket; Including a pair of tension springs that are caught on both ends of the upper locking pin and the lower locking pin and are staggered in a V shape,
a band holding groove which is formed by cutting the convex surface formed on the bottom of the band tension plate in an eleventh shape along the longitudinal direction and then transforming the cut into a more gentle curved surface than the band tension plate and preventing separation of the binding band; It is characterized by including chamfered portions respectively formed on facing surfaces of the pin head and the flange.

이상에서 설명한 바와 같은 본 발명은 지진시 발생된 진동에 의해 전력케이블(22)이 상하방향으로 움직이는 경우 상승방향으로 작용되는 진동에너지를 인장스프링(80)에 의해 일부 상쇄시킬 수 있도록 구성되어 있으므로, 전력케이블(22)에 가해지는 충격에너지를 크게 감소시킬 수 있는 효과가 있다.As described above, the present invention is configured so that when the power cable 22 moves up and down due to vibration generated during an earthquake, the vibration energy acting in the upward direction can be partially offset by the tension spring 80, There is an effect of greatly reducing impact energy applied to the power cable 22 .

지진시 전력케이블(22)이 움직이면서 결속밴드(20)가 이완되는 경우 결속밴드(20)에 걸려있는 밴드인장판(42)과 밴드인장판(42)을 당기고 있는 인장스프링(80)에 의해 결속밴드(20)가 팽팽한 상태로 즉시 복원되도록 구성되어 있기 때문에 결속밴드(20)가 지속적으로 인장력을 유지할 수 있는 효과가 있다.When the power cable 22 moves during an earthquake and the binding band 20 is relaxed, it is bound by the band tension plate 42 hanging on the binding band 20 and the tension spring 80 pulling the band tension plate 42. Since the band 20 is configured to be immediately restored to a taut state, the binding band 20 has an effect of continuously maintaining tensile force.

밴드인장판(42)에 형성된 밴드걸림홈(44)에 의해 결속밴드(20)의 이탈을 방지할 수 있는 효과가 있다.The separation of the binding band 20 can be prevented by the band holding groove 44 formed in the band tension plate 42 .

한 쌍의 인장스프링(80)이 서로 엇갈린 상태에서 브이자 모양으로 설치되어 있고, 좌우측에 위치된 상부걸림핀(50)을 통해 밴드인장판(42)의 좌우측에 탄성력을 균일하게 작용시키고 있기 때문에 승강꺾쇠(40)의 움직임이 부드럽게 되는 효과가 있고, 결속밴드(20)의 좌우측에 거의 대응한 인장력을 작용시킬 수 있는 효과가 있다.Since a pair of tension springs 80 are installed in a V-shape in a state in which they are crossed with each other, and the elastic force is uniformly applied to the left and right sides of the band tension plate 42 through the upper holding pins 50 located on the left and right sides, There is an effect of smoothing the movement of the lifting clamp 40 and an effect of applying a tensile force corresponding to the left and right sides of the binding band 20 .

전력케이블(22)의 하부에 밴드인장판(42)이 위치되어 있기 때문에 결속밴드(20)을 전력케이블(22)의 둘레방향을 따라 뒤틀림 없이 감아서 설치할 수 있는 효과가 있다.Since the band tension plate 42 is positioned below the power cable 22, the binding band 20 can be wound and installed along the circumferential direction of the power cable 22 without twisting.

더 나아가서 본 발명은 핀헤드(61)와 플랜지(71)에 형성된 면취부(62)(72)에 의해 핀헤드(61)와 플랜지(71) 간의 간섭을 회피할 수 있는 효과도 기대할 수 있다.Furthermore, according to the present invention, interference between the pin head 61 and the flange 71 can be avoided by the beveled portions 62 and 72 formed on the pin head 61 and the flange 71.

도 1은 종래기술을 보인 사시도
도 2는 본 발명에 따른 사시도
도 3은 도 2의 저면사시도
도 4는 본 발명에 따른 정면도
도 5는 본 발명에 따른 부분확대 사시도
도 6은 본 발명에 따른 부분확대 분리사시도
도 7은 본 발명의 주요부를 보인 분해사시도
도 8은 본 발명의 주요부를 보인 정면도
도 9는 도 8의 A-A'선 단면도
도 10은 본 발명에 따른 부분확대 평면도
도 11은 도 10의 B-B'선 단면도1 is a perspective view showing the prior art
2 is a perspective view according to the present invention
Figure 3 is a bottom perspective view of Figure 2
4 is a front view according to the present invention
5 is a partially enlarged perspective view according to the present invention
Figure 6 is a partially enlarged exploded perspective view according to the present invention
Figure 7 is an exploded perspective view showing the main part of the present invention
8 is a front view showing the main part of the present invention
9 is a cross-sectional view taken along line A-A' of FIG. 8
10 is a partially enlarged plan view according to the present invention
11 is a cross-sectional view taken along line BB' of FIG. 10

이하 본 발명에 따른 실시예를 첨부도면 도 2 내지 도 11을 참조하여 상세히 설명한다.Hereinafter, an embodiment according to the present invention will be described in detail with reference to FIGS. 2 to 11 of the accompanying drawings.

본 발명은 케이블 받침대(30)의 수직면에 밀착되어 미끄러지면서 승강되는 승강꺾쇠(40); 승강꺾쇠(40)에 형성되는 수직장공(41); 승강꺾쇠(40)의 상단에 형성되고, 결속밴드(20)에 의해 케이블 받침대(30)에 지지된 전력케이블(22)과 함께 감겨서 결속되며, 아래쪽을 향해 볼록한 원호형의 밴드인장판(42); 밴드인장판(42)의 양단에 형성되는 한 쌍의 컬링부(43)를 포함한다.The present invention is a lifting bracket 40 that is lifted while sliding in close contact with the vertical surface of the cable support 30; A vertical long hole 41 formed in the lifting bracket 40; It is formed on the upper end of the lifting bracket 40, is wound together with the power cable 22 supported on the cable support 30 by the binding band 20 and bound, and has a downward convex arc-shaped band tension plate 42. ); It includes a pair of curling parts 43 formed at both ends of the band tension plate 42 .

승강꺾쇠(40)는 일정한 두께를 갖는 강판을 ㄱ자 모양으로 절곡해서 성형할 수 있으며, 승강꺾쇠(40)에 형성되는 수직장공(41)은 일정한 폭과 길이를 갖도록 형성하고, 밴드인장판(42)은 승강꺾쇠(40)와 같은 강판을 이용해서 일체로 성형될 수 있다.The lifting bracket 40 can be formed by bending a steel plate having a certain thickness into a shape, and the vertical long hole 41 formed in the lifting bracket 40 is formed to have a certain width and length, and the band tension plate 42 ) Can be integrally molded using the same steel plate as the lift bracket 40.

케이블 받침대(30)의 후단부는 수직앵글(23)에 연결되어 수평을 유지한다.The rear end of the cable stand 30 is connected to the vertical angle 23 to maintain a level.

본 발명은 컬링부(43)에 각각 부분 압입되는 한 쌍의 상부걸림핀(50); 수직장공(41)을 통해 케이블 받침대(30)의 수직면에 설치되는 가이드핀(60); 가이드핀(60)의 일측단에 형성되고, 승강꺾쇠(40)의 표면에 밀착되는 핀헤드(61)를 포함한다. The present invention includes a pair of upper locking pins 50 each partially press-fitted to the curling unit 43; A guide pin 60 installed on the vertical surface of the cable support 30 through the vertical hole 41; It is formed at one end of the guide pin 60 and includes a pin head 61 in close contact with the surface of the lifting bracket 40.

컬링부(43)에 압입된 상부걸림핀(50)의 외주면에는 환형의 스프링걸림홈(52)(53)을 축방향으로 서로 간격을 두고 형성해서 하기 인장스프링(80)의 상단에 형성된 후크를 스프링걸림홈(52)(53)에 걸 수 있도록 구성할 수 있다.On the outer circumferential surface of the upper locking pin 50 press-fitted into the curling part 43, ring-shaped spring locking grooves 52 and 53 are formed at intervals in the axial direction, and the hook formed on the upper end of the tension spring 80 is formed. It can be configured to be hung on the spring locking grooves 52 and 53.

가이드핀(60)은 승강꺾쇠(40)에 형성된 수직장공(41)에 위치되어 승강꺾쇠(40)을 상하방향으로 안내하는 역할을 하는데, 이때 승강꺾쇠(40)의 원활한 움직임을 위해 가이드핀(60)과 수직장공(41)에 윤활오일을 주입해 두면 부드러운 움직임을 얻을 수 있다.The guide pin 60 is located in the vertical long hole 41 formed in the lifting bracket 40 and serves to guide the lifting bracket 40 in the vertical direction. At this time, for smooth movement of the lifting bracket 40, the guide pin ( 60) and the vertical long hole 41, smooth motion can be obtained by injecting lubricating oil.

가이드핀(60)에 형성된 핀헤드(61)는 승강꺾쇠(40)의 이탈을 방지하기 위한 것으로, 가이드핀(60)의 직경보다 큰 직경을 갖는 납작한 원반모양으로 형성할 수 있다.The pin head 61 formed on the guide pin 60 is to prevent the lift bracket 40 from coming off, and may be formed in a flat disk shape having a larger diameter than the diameter of the guide pin 60.

가이드핀(60)의 후단부에는 가이드핀(60)의 직경보다 작은 직경을 갖는 리벳결합부(65)를 형성한 다음 이를 핀구멍(32)에 삽입한 후 반대편으로 돌출된 부분을 해머와 같은 성형도구를 이용해서 리벳모리 형태로 성형함으로써 가이드핀(60)이 케이블 받침대(30)으로부터 이탈되는 것을 방지한다.At the rear end of the guide pin 60, a rivet coupling part 65 having a diameter smaller than the diameter of the guide pin 60 is formed, and then inserted into the pin hole 32, and then the protruding part on the opposite side, such as a hammer, is formed. The guide pin 60 is prevented from being separated from the cable support 30 by molding it into a rivet mori shape using a molding tool.

본 발명은 가이드핀(60)과 상하방향으로 거리를 두고 위치되고, 수직장공(41)을 통해 케이블 받침대(30)의 수직면에 설치되는 하부걸림핀(70); 하부걸림핀(70)의 외주면에 형성되고, 승강꺾쇠(40)의 표면에 밀착되는 플랜지(71); 상부걸림핀(50)과 하부걸림핀(70)에 양단이 걸리고, 서로 브이자 모양으로 엇갈리는 한 쌍의 인장스프링(80)을 포함한다.The present invention is positioned at a distance from the guide pin 60 in the vertical direction, the lower locking pin 70 installed on the vertical surface of the cable support 30 through the vertical hole 41; A flange 71 formed on the outer circumferential surface of the lower locking pin 70 and in close contact with the surface of the lifting bracket 40; Both ends are caught on the upper locking pin 50 and the lower locking pin 70 and include a pair of tension springs 80 that are staggered in a V shape.

케이블 받침대(30)의 하단에는 예를 들면 하측으로 연장되는 연장부(31)를 형성하고, 연장부(31)에는 상하방향으로 일정한 거리를 유지하는 핀구멍(32)(33)을 천공해서 가이드핀(60)과 하부걸림핀(70)을 핀구멍(32)(33)을 이용해서 케이블 받침대(30)에 설치하도록 구성할 수 있다.For example, an extension 31 extending downward is formed at the lower end of the cable support 30, and pin holes 32 and 33 are drilled in the extension 31 to maintain a constant distance in the vertical direction to guide the guide. The pin 60 and the lower locking pin 70 may be configured to be installed in the cable support 30 using the pin holes 32 and 33.

하부걸림핀(70)의 외주면 일부는 승강꺾쇠(40)에 형성된 수직장공(41)에 접촉되어 승강꺾쇠(40)을 상하방향으로 안내하는 역할을 하게 되는데, 이때 승강꺾쇠(40)의 원활한 움직임을 위해 하부걸림핀(70)과 수직장공(41)에 윤활오일을 주입해 두면 부드러운 움직임을 얻을 수 있다.A part of the outer circumferential surface of the lower locking pin 70 is in contact with the vertical long hole 41 formed in the lifting bracket 40 to serve to guide the lifting bracket 40 in the vertical direction. At this time, the smooth movement of the lifting bracket 40 For this, smooth movement can be obtained by injecting lubricating oil into the lower locking pin 70 and the vertical long hole 41.

하부걸림핀(70)의 외주면에도 상부걸림핀(50)에 형성된 스프링걸림홈(52)(53)과 마찬가지로, 환형의 스프링걸림홈(72)(73)을 축방향으로 서로 간격을 두고 형성해서 하기 인장스프링(80)의 하단에 형성된 후크를 스프링걸림홈(72)(73)에 걸어서 설치할 수 있도록 구성할 수 있다.On the outer circumferential surface of the lower locking pin 70, like the spring locking grooves 52 and 53 formed on the upper locking pin 50, annular spring locking grooves 72 and 73 are formed at intervals in the axial direction, The hook formed at the lower end of the tension spring 80 may be configured to be installed by hanging it in the spring locking grooves 72 and 73.

하부걸림핀(70)의 외주면에 형성되는 플랜지(71)는 승강꺾쇠(40)의 이탈을 방지하기 위한 것으로, 하부걸림핀(70)의 직경보다 큰 직경을 갖는 납작한 원반모양으로 형성할 수 있다.The flange 71 formed on the outer circumferential surface of the lower locking pin 70 is to prevent the lifting bracket 40 from escaping, and can be formed in a flat disk shape having a larger diameter than the diameter of the lower locking pin 70 .

하부걸림핀(70)의 후단부에는 하부걸림핀(70)의 직경보다 작은 직경을 갖는 리벳결합부(75)를 형성해서 핀구멍(33)에 삽입한 후 반대편으로 돌출된 부분을 해머와 같은 성형도구를 이용해서 리벳모리 형태로 성형함으로써 하부걸림핀(70)이 케이블 받침대(30)으로부터 이탈되는 것을 방지한다.At the rear end of the lower locking pin 70, a rivet coupling part 75 having a smaller diameter than the diameter of the lower locking pin 70 is formed, inserted into the pin hole 33, and then the protruding part on the opposite side is like a hammer. The lower locking pin 70 is prevented from being separated from the cable support 30 by molding it into a rivet mori shape using a molding tool.

인장스프링(80)은 일정한 직경을 갖는 스프링 강선을 나선형으로 감아서 만든 인장코일 스프링으로 구성할 수 있으며, 인장스프링(80)의 양단에는 개방된 고리모양의 후크(부호생략)를 형성해서 상부걸림핀(50)과 하부걸림핀(70)에 걸어서 설치할 수 있도록 한다.The tension spring 80 may be composed of a tension coil spring made by spirally winding a spring steel wire having a certain diameter, and at both ends of the tension spring 80, open ring-shaped hooks (signs omitted) are formed for upper hanging. It can be installed by hanging on the pin 50 and the lower locking pin 70.

본 발명은 밴드인장판(42)의 저면에 형성된 볼록한 면을 길이방향을 따라 십일자 모양으로 절개한 다음 절개부를 밴드인장판(42)보다 완만한 곡면으로 변형시켜서 형성되고, 결속밴드(20)의 이탈을 방지하는 밴드걸림홈(44); 핀헤드(61)와 플랜지(71)의 마주보는 면에 각각 형성되는 면취부(62)(72)를 포함한다.The present invention is formed by incising the convex surface formed on the bottom of the band tension plate 42 in an eleventh shape along the longitudinal direction and then transforming the incision into a more gentle curved surface than the band tension plate 42, and the binding band 20 Band engaging groove 44 to prevent the departure of; It includes chamfered portions 62 and 72 respectively formed on facing surfaces of the pin head 61 and the flange 71 .

면취부(62)(72)는 핀헤드(61)와 플랜지(71)가 서로 간섭되는 것을 방지하기 위한 것이다.The chamfered portions 62 and 72 are to prevent the pin head 61 and the flange 71 from interfering with each other.

이하 본 발명에 따른 작용을 첨부도면을 참조하여 상세히 설명한다.Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

케이블 받침대(30)에 전력케이블(22)을 포설한 다음 결속밴드(20)를 전력케이블(22)과 밴드인장판(42)에 함께 감고 결속밴드(20)를 당기면, 밴드인장판(42)과 승강꺾쇠(40)가 가이드핀(60)과 하부걸림핀(70)의 안내를 받으면서 상승된다.After the power cable 22 is installed on the cable support 30, the binding band 20 is wound around the power cable 22 and the band tension plate 42 together, and when the binding band 20 is pulled, the band tension plate 42 And the lifting bracket 40 is raised while receiving the guidance of the guide pin 60 and the lower locking pin 70.

이때 인장스프링(80)이 신장되면서 상부걸림핀(50)과 밴드인장판(42)을 통해 결속밴드(20)로 인장력이 전달되고, 결속밴드(20)는 인장스프링(80)에 의해 팽팽한 상태를 유지하게 된다.At this time, as the tension spring 80 is extended, tension is transmitted to the binding band 20 through the upper holding pin 50 and the band tension plate 42, and the binding band 20 is in a taut state by the tension spring 80 will keep

한편, 결속밴드(20)가 이완되는 경우에도 인장스프링(80)이 수축되는 방향으로 탄성복원력을 지니고 있기 때문에 이완된 결속밴드(20)는 즉시 팽팽하게 인장되어 결속력을 지속적으로 유지할 수 있게 된다.Meanwhile, even when the binding band 20 is relaxed, since the tension spring 80 has elastic restoring force in the contracted direction, the loosened binding band 20 is immediately tensioned and the binding force can be continuously maintained.

지진시 전력케이블(22)을 통해 결속밴드(20)를 이완시키는 방향으로 힘이 작용되면, 위와 같은 작용에 의해 결속밴드(20)는 팽팽한 상태를 유지할 뿐만 아니라 전력케이블(22)의 상승방향으로 작용되던 충격에너지가 인장스프링(80)에 의해 상쇄되면서 전력케이블(22)에 가해지던 충격에너지가 감소된다.When force is applied in the direction of loosening the binding band 20 through the power cable 22 during an earthquake, the binding band 20 not only maintains a taut state due to the above action, but also moves in the upward direction of the power cable 22. As the applied impact energy is offset by the tension spring 80, the impact energy applied to the power cable 22 is reduced.

20 : 결속밴드 22 : 전력케이블
23 : 수직앵글 30 : 케이블 받침대
31 : 연장부 32,33 : 핀구멍
40 : 승강꺾쇠 41 : 수직장공
42 : 밴드인장판 43 : 컬링부
44 : 밴드걸림홈 50 : 상부걸림핀
52,53,72,73 : 스프링걸림홈 60 : 가이드핀
61 : 핀헤드 62,72 : 면취부
65,75 : 리벳결합부 70 : 하부걸림핀
71 : 플랜지 80 : 인장스프링20: binding band 22: power cable
23: vertical angle 30: cable support
31: extension part 32,33: pin hole
40: lift bracket 41: vertical hole
42: band tension plate 43: curling part
44: band locking groove 50: upper locking pin
52,53,72,73: spring locking groove 60: guide pin
61: pin head 62,72: chamfer
65,75: rivet coupling part 70: lower locking pin
71: flange 80: tension spring

Claims (2)

삭제delete 케이블 받침대(30)의 수직면에 밀착되어 미끄러지면서 승강되는 승강꺾쇠(40);
상기 승강꺾쇠(40)에 형성되는 수직장공(41);
상기 승강꺾쇠(40)의 상단에 형성되고, 결속밴드(20)에 의해 상기 케이블 받침대(30)에 지지된 전력케이블(22)과 함께 감겨서 결속되며, 아래쪽을 향해 볼록한 원호형의 밴드인장판(42);
상기 밴드인장판(42)의 양단에 형성되는 한 쌍의 컬링부(43);
상기 컬링부(43)에 각각 부분 압입되는 한 쌍의 상부걸림핀(50);
상기 수직장공(41)을 통해 상기 케이블 받침대(30)의 수직면에 설치되는 가이드핀(60);
상기 가이드핀(60)의 일측단에 형성되고, 상기 승강꺾쇠(40)의 표면에 밀착되는 핀헤드(61);
상기 가이드핀(60)과 상하방향으로 거리를 두고 위치되고, 상기 수직장공(41)을 통해 상기 케이블 받침대(30)의 수직면에 설치되는 하부걸림핀(70);
상기 하부걸림핀(70)의 외주면에 형성되고, 상기 승강꺾쇠(40)의 표면에 밀착되는 플랜지(71);
상기 상부걸림핀(50)과 하부걸림핀(70)에 양단이 걸리고, 서로 브이자 모양으로 엇갈리는 한 쌍의 인장스프링(80);을 포함하는 건축용 지중배전 케이블 완충장치에 있어서,

상기 밴드인장판(42)의 저면에 형성된 볼록한 면을 길이방향을 따라 십일자 모양으로 절개한 다음 절개부를 밴드인장판(42)보다 완만한 곡면으로 변형시켜서 형성되고, 상기 결속밴드(20)의 이탈을 방지하는 밴드걸림홈(44);
상기 핀헤드(61)와 플랜지(71)의 마주보는 면에 각각 형성되는 면취부(62)(72);
를 포함하는 것을 특징으로 하는 건축용 지중배전 케이블 완충장치.Lifting brackets 40 that are lifted while sliding in close contact with the vertical surface of the cable support 30;
a vertical long hole 41 formed in the lift bracket 40;
It is formed at the upper end of the lifting bracket 40, is wound together with the power cable 22 supported on the cable stand 30 by the binding band 20 and bound, and is convex downwardly in an arc-shaped band tension plate. (42);
a pair of curling parts 43 formed at both ends of the band tension plate 42;
A pair of upper locking pins 50 each partially press-fitted into the curling part 43;
a guide pin 60 installed on the vertical surface of the cable support 30 through the vertical hole 41;
a pin head 61 formed at one end of the guide pin 60 and in close contact with the surface of the lift bracket 40;
a lower locking pin 70 positioned at a distance from the guide pin 60 in the vertical direction and installed on the vertical surface of the cable support 30 through the vertical hole 41;
A flange 71 formed on an outer circumferential surface of the lower locking pin 70 and in close contact with the surface of the lifting bracket 40;
In the underground distribution cable buffer for construction,

It is formed by cutting the convex surface formed on the bottom surface of the band tension plate 42 in an eleventh shape along the length direction and then transforming the incision into a more gentle curved surface than the band tension plate 42. Band locking groove 44 to prevent separation;
chamfered portions 62 and 72 respectively formed on facing surfaces of the pin head 61 and the flange 71;
Underground distribution cable buffer for construction, characterized in that it comprises a.
KR1020220023714A 2022-02-23 2022-02-23 Shock Absorber for Underground Distribution Cable KR102505985B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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KR101861533B1 (en) 2018-03-30 2018-05-28 (주)건일엠이씨 End Protector for Distribution Cable Bracket
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KR102347556B1 (en) * 2021-05-28 2022-01-06 주식회사 성우이엠이 Power Cable Binding Device
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KR101484722B1 (en) 2012-12-28 2015-01-20 대한전선 주식회사 Fastening cleat assembly sturucture for underground power cable
KR101597157B1 (en) 2015-11-05 2016-02-24 (주)광명토탈엔지니어링 Distribution Cable Bracket End Protector for Apartment House
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KR101861533B1 (en) 2018-03-30 2018-05-28 (주)건일엠이씨 End Protector for Distribution Cable Bracket
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Publication number Priority date Publication date Assignee Title
KR102682251B1 (en) 2023-12-20 2024-07-08 (주)이음엔지니어링 Underground power cable support device

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