KR20140024729A - Ball Joints for Building Structures - Google Patents

Ball Joints for Building Structures Download PDF

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Publication number
KR20140024729A
KR20140024729A KR1020120091217A KR20120091217A KR20140024729A KR 20140024729 A KR20140024729 A KR 20140024729A KR 1020120091217 A KR1020120091217 A KR 1020120091217A KR 20120091217 A KR20120091217 A KR 20120091217A KR 20140024729 A KR20140024729 A KR 20140024729A
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South Korea
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ball joint
ball
building
joint
spherical
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KR1020120091217A
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Korean (ko)
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유제우
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유제우
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/1966—Formlocking connections other than screw connections
    • E04B2001/1969—Ball and socket type connection
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B2001/5862—Angularly adjustable connections without hinge pin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The present invention relates to a ball joint for a building structure. A general industrial ball joint is heavy and expensive due to complex production and assembling processes. Because the industrial ball joint is made of heavy steel as a material, considering the abrasion of a ball generated during the continuous operation of a machine. Mainly, one ball joint is formed per ball joint connecting body. But the ball joint for a building structure needs to consider the escape of a ball after the ball is installed in a structure to fix an angle, rather than the abrasion of the ball caused by operational friction. Due to the nature of a building construction, one ball joint connecting body should have multiple ball joints, and the lighter the weight of the ball joint is, the better it will be. The present invention is suitable to use as a lightweight material for construction, such as a wooden building, a fabricated tent, or a vinyl greenhouse of a geodesic dome type (Fig. 6), and is designed to have low production costs because of simple assembling. Therefore the present invention can make a new style of building popular.

Description

건축 구조물용 볼조인트{omitted}Ball joints for building structures

볼조인트Ball joint

볼조인트Ball joint

일반적인 공업용 볼조인트는 무겁고, 생산과 조립과정이 복잡해서 가격이 비싸다.Typical industrial ball joints are heavy and expensive due to complex production and assembly processes.

그리고 주로 한 개의 볼조인트 연결체에 한 개의 볼조인트가 형성된다.And one ball joint is mainly formed in one ball joint connector.

그리고 기계의 지속적인 동작 과정에서 발생하는 볼의 마모를 고려해서, 볼의 재료를 마모에 강한 무거운 강철로 만들게 된다.And considering the wear of the ball during the continuous operation of the machine, the material of the ball is made of heavy steel that is resistant to wear.

그러나 건축 구조물용 볼조인트는, 동작 마찰에 의한 마모는 중요하지 않고, 구조물내에 일단 각도가 고정되도록 설치된 후에는 볼조인트가 빠지지만 않으면 된다.However, the ball joint for a building structure is not important to wear due to the operation friction, and once the ball joint is installed so that the angle is fixed in the structure, the ball joint does not have to be removed.

그리고 구조물의 특성 상, 한 개의 볼조인트 연결체에 다수의 볼조인트가 형성되어 있어야 하고, 그 무게는 가벼울수록 좋다.In addition, due to the characteristics of the structure, a plurality of ball joints should be formed in one ball joint connector, and the lighter the better.

그리고 일반적인 볼조인트의 볼은 한번 끼워지면 분해가 어려워서, 볼을 연결하는 목 부위가 부러지면 교체가 힘들다. 그러나 이러한 경우에도 쉽게 교체할 수 있으면 매우 유용하다.And the ball of the general ball joint is difficult to disassemble once inserted, it is difficult to replace the broken neck connecting the ball. However, even in this case, it is very useful to be able to replace it easily.

그러므로 여기서는 , 도6)에서 보듯이, 목조건물이나 모형조립물, 조립식 텐트, 또는 지오데식 돔(geodesic dom) 타입의 비닐하우스(도6) 등의 가벼운 건축용 자재로 사용하기에 적합하고, 조립이 단순해서, 생산비가 저렴한 볼조인트를 개발하고자 한다.Therefore, here, as shown in Fig. 6, it is suitable for use as a light building material such as a wooden building, a model assembly, a prefabricated tent, or a geodesic dom type vinyl house (Fig. 6). Simple, we want to develop a low cost ball joint.

우선, 도1)의 실시 예에서 보듯이, 볼조인트의 볼 연결체(도1-1)에, 볼조인트의 볼의 직경보다 약간 작은 입구를 지닌, 다수의 원구형 홈(도1-3)을 형성시킨다.First, as shown in the embodiment of Fig. 1, in the ball joint of the ball joint (Fig. 1-1), a large number of spherical grooves having an inlet slightly smaller than the diameter of the ball joint (Fig. 1-3). To form.

그리고 도2)에서 보듯이, 속이 빈 파이프의 한쪽 끝에, 십자형 빈틈이 길게 만들어진 볼(도2-2)을 형성시킨다.As shown in Fig. 2, one end of the hollow pipe is formed with a ball (Fig. 2-2) in which a cross-shaped gap is made long.

이렇게 만들어진 볼(도2-2)은, 볼의 직경보다 약간 작은 직경을 지닌 구형 연결체(도1-1)의 홈의 입구로 끼워 넣어질 때, 그 빈틈 때문에 볼의 직경이 줄어들면서 구형 연결체(도1-1)의 홈(도1-3)에 쉽게 끼워지게 된다.The ball thus made (Fig. 2-2), when inserted into the inlet of the groove of the spherical connector (Fig. 1-1) with a diameter slightly smaller than the diameter of the ball, is reduced in diameter due to its gap, resulting in spherical connection. It easily fits into the groove (Fig. 1-3) of the sieve (Fig. 1-1).

그리고 도3)에서 보듯이, 일단 구형 연결체(도1-1)의 홈(도1-3)에 끼워진 볼이 빠지지 않도록, 볼의 반대쪽의 파이프의 구멍으로부터 금속 막대기(도3-4)를 박아 넣는다.As shown in Fig. 3, the metal rod (Fig. 3-4) is removed from the hole of the pipe on the opposite side of the ball so that the ball once inserted into the groove (Fig. 1-3) of the spherical connector (Fig. 1-1) does not come out. Drive in.

이렇게 하면 볼에 만들어진 십자형 빈틈이 안쪽으로부터 메꿔지기 때문에, 일단 끼워 넣어진 볼은 다시 빠지지 않게 된다.In this way, the cross-shaped gap made in the ball is filled from the inside, so that the ball once inserted does not fall out again.

이러한 방식은, 특히 볼조인트의 볼 연결체(도1-1)와 볼을 강화 플라스틱으로 만들 경우 , 각각 한 개의 금형과 블로어 방식을 통해서 쉽게 만들 수가 있어서, 가벼우면서도 매우 경제적이다. 그리고 강화 플라스틱으로 만들 경우, 끼워지는 볼의 연결 막대 부위가 잘 부러지기 쉬운 단점이 있지만, 본 발명품에서는, 도3)에서 보듯이, 볼의 연결 막대 부위의 안 쪽에 금속 막대를 끼워 넣는 방식이므로, 이 부분이 쉽게 부러지지 않는 장점이 있게 된다.This method is particularly light and very economical, since the ball joint (Fig. 1-1) of the ball joint and the ball are made of reinforced plastic, respectively, by one mold and blower method. And when made of reinforced plastics, there is a disadvantage that the connection bar portion of the ball to be inserted easily breaks, but in the present invention, as shown in Figure 3, because the metal rod is inserted into the inside of the connection bar portion of the ball, This part has the advantage of not easily broken.

그리고 일반적인 볼조인트의 볼은 한번 끼워지면 분해가 어려워서, 볼을 연결하는 목 부위가 부러지면 교체가 힘들다. 그러나 이러한 경우에도 본 발명품은 볼을 쉽게 분해, 교체할 수 있어서 매우 유용하다.And the ball of the general ball joint is difficult to disassemble once inserted, it is difficult to replace the broken neck connecting the ball. However, even in this case, the present invention is very useful because the ball can be easily disassembled and replaced.

그리고 볼조인트의 볼 연결체(도1-1)의 홈(도1-3)과 그것에 끼워지는 볼의 형태를, 도4)에서 보듯이, 다양한 구형 다각면체를 사용하면, 볼조인트의 역할을 수행하면서도, 일정한 각도에서는 볼조인트를 멈춰 서도록 할 수 있어서, 모형조립에는 매우 유용하다.And as shown in Fig. 4, the groove (Fig. 1-3) of the ball joint (Fig. 1-1) of the ball joint and the shape of the ball fitted therein, various spherical polyhedrons serve as a ball joint. In practice, the ball joint can be stopped at a certain angle, which is very useful for model assembly.

이러한 다 방향 연결이 가능한 가볍고 제작비가 저렴한 볼조인트는, 지오데식 돔(도6)과 같은 기능성 조립식 건축물이나 작은 목조건축물, 텐트 또는 비닐하우스 등의 건축물 제작에 매우 유용하다.Such a light and low-cost ball joint capable of multi-directional connection is very useful for building functional prefabricated buildings such as geodesic domes (FIG. 6) or small wooden buildings, tents or vinyl houses.

그리고 지오데식 돔은 주로 정삼각형의 조합으로만 이루어지지만 본 발명품을 사용하면, 조노돔(zonodom) 형식의 구조물이나 좀 더 다양한 각도의 구조물 결합이 필요한 복잡한 건축물도 간단하게 만들 수 있다.In addition, the geodesic dome is mainly made of a combination of equilateral triangles, but using the present invention, it is possible to easily create a complex structure that requires the combination of a structure of a zonodom type or a structure of more various angles.

본 발명품은 새로운 건축양식의 보급에 많은 기여를 할 것이다.The present invention will greatly contribute to the spread of new architectural styles.

도1)은 원구형의 볼조인트의 볼 연결체(도1-1)에, 볼조인트의 볼의 직경보다 약간 작은 입구를 지닌, 다수의 원구형 홈(도1-3)을 형성시킨 실시예의 단면도.
도2)는 볼의 머리에 십자형의 빈 틈이 만들어진 볼의 사시도.
도3)은 도2)의 상세 단면도.
도4)는 볼조인트의 볼에 사용되는 다양한 원구형 다각면체의 사시도
도5)는 다양한 형태의 볼조인트의 볼 연결체(도1-1)의 사시도
도6)은 본 발명품이 사용된 지오데식 돔의 실시 예.FIG. 1 shows an embodiment in which a plurality of spherical grooves (FIG. 1-3) are formed in a ball joint of a spherical ball joint (FIG. 1-1) having an inlet slightly smaller than the diameter of a ball joint ball. Cross-section.
Figure 2 is a perspective view of a ball made of a cross-shaped gap in the head of the ball.
3) is a detailed cross-sectional view of FIG. 2).
Figure 4 is a perspective view of various spherical polygons used in the ball of the ball joint
5 is a perspective view of a ball connector (Fig. 1-1) of various types of ball joints;
6 is an embodiment of a geodesic dome in which the invention is used.

우선, 도1)의 실시 예에서 보듯이, 볼조인트의 볼 연결체(도1-1)에, 볼조인트의 볼의 직경보다 약간 작은 입구를 지닌, 다수의 구형 홈(도1-3)을 형성시킨다.First, as shown in the embodiment of Fig. 1, a plurality of spherical grooves (Fig. 1-3) are provided in the ball joint of the ball joint (Fig. 1-1) having an inlet slightly smaller than the diameter of the ball joint. Form.

그리고 도2)에서 보듯이, 속이 빈 파이프의 한쪽 끝에, 십자형 빈틈이 길게 만들어진 볼(도2-2)을 형성시킨다.As shown in Fig. 2, one end of the hollow pipe is formed with a ball (Fig. 2-2) in which a cross-shaped gap is made long.

이렇게 만들어진 볼(도2-2)은, 볼의 직경보다 약간 작은 직경을 지닌 구형 연결체(도1-1)의 홈의 입구로 끼워 넣어질 때, 그 빈틈 때문에 볼의 직경이 줄어들면서 구형 연결체(도1-1)의 홈(도1-3)에 쉽게 끼워지게 된다.The ball thus made (Fig. 2-2), when inserted into the inlet of the groove of the spherical connector (Fig. 1-1) with a diameter slightly smaller than the diameter of the ball, is reduced in diameter due to its gap, resulting in spherical connection. It easily fits into the groove (Fig. 1-3) of the sieve (Fig. 1-1).

그리고 도3)에서 보듯이, 일단 구형 연결체(도1-1)의 홈(도1-3)에 끼워진 볼이 빠지지 않도록, 볼의 반대쪽의 파이프의 구멍으로부터 금속 막대기(도3-4)를 박아 넣는다.As shown in Fig. 3, the metal rod (Fig. 3-4) is removed from the hole of the pipe on the opposite side of the ball so that the ball once inserted into the groove (Fig. 1-3) of the spherical connector (Fig. 1-1) does not come out. Drive in.

이렇게 하면 볼에 만들어진 십자형 빈틈이 안쪽으로부터 메꿔지기 때문에, 일단 끼워 넣어진 볼은 다시 빠지지 않게 된다.In this way, the cross-shaped gap made in the ball is filled from the inside, so that the ball once inserted does not fall out again.

이러한 방식은, 특히 볼조인트의 볼 연결체(도1-1)와 볼을 강화 플라스틱으로 만들 경우 , 각각 한 개의 금형과 블로어 방식을 통해서 쉽게 만들 수가 있어서, 가벼우면서도 매우 경제적이다. 그리고 강화 플라스틱으로 만들 경우, 끼워지는 볼의 연결 막대 부위가 잘 부러지기 쉬운 단점이 있지만, 본 발명품에서는, 도3)에서 보듯이, 볼의 연결 막대 부위의 안 쪽에 금속 막대를 끼워 넣는 방식이므로, 이 부분이 쉽게 부러지지 않는 장점이 있게 된다.This method is particularly light and very economical, since the ball joint (Fig. 1-1) of the ball joint and the ball are made of reinforced plastic, respectively, by one mold and blower method. And when made of reinforced plastics, there is a disadvantage that the connection bar portion of the ball to be inserted easily breaks, but in the present invention, as shown in Figure 3, because the metal rod is inserted into the inside of the connection bar portion of the ball, This part has the advantage of not easily broken.

그리고 볼조인트의 볼 연결체(도1-1)의 홈(도1-3)과 그것에 끼워지는 볼의 형태를, 도4)에서 보듯이, 다양한 구형 다각면체를 사용하면, 볼조인트의 역할을 수행하면서도, 일정한 각도에서는 볼조인트를 멈춰 서도록 할 수 있어서, 모형조립에는 매우 유용하다.And as shown in Fig. 4, the groove (Fig. 1-3) of the ball joint (Fig. 1-1) of the ball joint and the shape of the ball fitted therein, various spherical polyhedrons serve as a ball joint. In practice, the ball joint can be stopped at a certain angle, which is very useful for model assembly.

그리고 볼조인트로 연결되는 구조물들의 각도가 건축물의 형태에 따라서 어느 정도 정해지고, 또 그 구조물들의 외장과 마무리에 어울리는 볼연결체(도1-1)의 적합한 형태가 다양하기 때문에, 도5)에서 보듯이, 원구 형태나 타원형 구의 형태뿐만이 아니라, 다양한 입방체의 형태를 이용해서 볼조인트의 볼 연결체(도1-1)를 만들 수 있다.In addition, since the angles of the structures connected to the ball joint are determined to some extent according to the shape of the building, and the suitable shape of the ball connecting body (Fig. 1-1) suitable for the exterior and finishing of the structures is varied in Fig. 5). As can be seen, the ball joint (Fig. 1-1) of the ball joint can be made using various cubic shapes as well as spherical or elliptical spheres.

이러한 볼조인트를 사용해서 간단하게 조립 및 제작할 수있는 건축물의 실시 예가 도6)과 같은 지오데식 돔이다. 모든 모서리에 볼조인트를 이용해서 구조물의 골격을 연결 시켰다.An embodiment of a building that can be easily assembled and fabricated using such a ball joint is a geodesic dome as shown in FIG. 6). Ball joints are used at all corners to connect the skeleton of the structure.

그런데 기존의 지오데식 돔은 주로 정삼각형의 조합으로 이루어지지만, 좀 더 다양한 평방체로 이루어지는 입체의 건축물을 만들기 위해서는 다양한 각도의 조립이 가능한 본 발명품인 볼조인트가 매우 유용하다.By the way, the existing geodesic dome is mainly made of a combination of equilateral triangles, in order to make a three-dimensional structure consisting of a more diverse square body ball joint is a very useful product that can be assembled at various angles.

Claims (5)

볼조인트의 형성에 있어서, 볼조인트의 볼 연결체(도1-1)에, 볼조인트의 볼의 직경보다 약간 작은 입구를 지닌, 다수의 원구형 홈(도1-3)을 형성시킨다. 그리고 도2)에서 보듯이, 속이 빈 원형 또는 다각형의 파이프의 한쪽 끝에, 십자형이나 다수의 빈틈이 길게 만들어진 볼(도2-2)을 형성시켜서, 이것을 상기의 볼조인트의 볼 연결체(도1-1)에 끼운 다음, 이것이 빠지지 않도록, 도3)에서 보듯이, 볼의 반대쪽의 파이프의 구멍으로부터, 원형 또는 다각형의 금속 막대기를 박아 넣어서 만드는 볼조인트.In the formation of the ball joint, a large number of spherical grooves (Fig. 1-3) are formed in the ball joint of the ball joint (Fig. 1-1) having an inlet slightly smaller than the diameter of the ball joint. As shown in Fig. 2, at one end of a hollow circular or polygonal pipe, a ball (Fig. 2-2) made of a cross or a plurality of gaps is formed to form a ball joint of the ball joint (Fig. 1). Ball joint made by inserting a circular or polygonal metal rod from the hole of the pipe on the opposite side of the ball, as shown in Fig. 3, so that it does not fall out. 청구항1에서, 볼조인트의 볼 연결체(도1-1)에 형성된 다수의 원구형 홈(도1-3)과 볼조인트의 볼(도1-2)의 형태를 원구형태 뿐만이 아니라, 도4)에서 보듯이, 원구에 가까운 다각 입방체를 사용함으로써, 일정한 각도에서는 볼조인트를 멈춰 설 수 있도록 만든 볼조인트.In claim 1, not only the spherical shape but also the spherical groove (FIG. 1-3) and the ball joint ball (FIG. 1-2) formed in the ball joint (FIG. 1-1) of the ball joint, FIG. As shown in Fig. 2), a ball joint made of a polygonal cube close to a sphere can be used to stop the ball joint at a certain angle. 청구항1)에서, 볼조인트의 볼 연결체(도1-1)의 형태를 원구형태 뿐만이 아니라, 도5)에서 보듯이, 원구에 가까운 다각 입방체를 사용한 볼조인트.The ball joint using a polygonal cube close to the sphere as claimed in claim 1, wherein the ball joint of the ball joint (Fig. 1-1) is not only a spherical shape but also a sphere. 청구항1)에서, 볼조인트의 사용재료를, 금속뿐만이 아니라, 강화 플라스틱이나 탄소결합체등을 사용한 볼조인트.The ball joint according to claim 1, wherein the material used for the ball joint is not only metal but also reinforced plastic, a carbon binder, and the like. 청구항1)에서, 볼이 빠지지 않도록, 볼의 반대쪽의 파이프의 구멍으로부터 박아 넣는, 원형 또는 다각형의 금속 막대기(도3-4)에 있어서, 그 금속막대기가 빠지지 않도록, (도3-4)처럼, 조립용 구멍이 형성되거나, (도3-5)처럼 나사 장치가 형성되어 있는 금속막대기가 사용된 볼조인트.In claim 1, in a round or polygonal metal rod (Fig. 3-4) that is driven from a hole in a pipe opposite to the ball so that the ball does not fall out, so that the metal bar does not fall out, as in (Fig. 3-4). , Ball joint using a metal bar with a hole for assembly, or a screw device is formed as shown in (Fig. 3-5).
KR1020120091217A 2012-08-21 2012-08-21 Ball Joints for Building Structures KR20140024729A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160070491A (en) 2014-12-10 2016-06-20 이건우 Transformer tent and joint
WO2020138836A1 (en) * 2018-12-27 2020-07-02 대우조선해양 주식회사 Insulating wall fixing device of liquefied natural gas storage tank

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160070491A (en) 2014-12-10 2016-06-20 이건우 Transformer tent and joint
WO2020138836A1 (en) * 2018-12-27 2020-07-02 대우조선해양 주식회사 Insulating wall fixing device of liquefied natural gas storage tank
KR20200080589A (en) * 2018-12-27 2020-07-07 대우조선해양 주식회사 Insulation wall securing device for lng storage tank
CN113226912A (en) * 2018-12-27 2021-08-06 大宇造船海洋株式会社 Heat insulation wall fixing device of liquefied natural gas storage tank
JP2022512215A (en) * 2018-12-27 2022-02-02 デウ シップビルディング アンド マリン エンジニアリング カンパニー リミテッド Insulation wall fixing device in liquefied natural gas storage tank
CN113226912B (en) * 2018-12-27 2023-10-13 大宇造船海洋株式会社 Heat insulation wall fixing device of liquefied natural gas storage tank
US11971140B2 (en) 2018-12-27 2024-04-30 Hanwha Ocean Co., Ltd. Insulating wall fixing device of liquefied natural gas storage tank

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