KR101095818B1 - Pipe hanger - Google Patents

Pipe hanger Download PDF

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Publication number
KR101095818B1
KR101095818B1 KR1020100000669A KR20100000669A KR101095818B1 KR 101095818 B1 KR101095818 B1 KR 101095818B1 KR 1020100000669 A KR1020100000669 A KR 1020100000669A KR 20100000669 A KR20100000669 A KR 20100000669A KR 101095818 B1 KR101095818 B1 KR 101095818B1
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South Korea
Prior art keywords
bolt
clamp
pipe
present
pipe hanger
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KR1020100000669A
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Korean (ko)
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KR20110080434A (en
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허종현
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허종현
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Priority to KR1020100000669A priority Critical patent/KR101095818B1/en
Publication of KR20110080434A publication Critical patent/KR20110080434A/en
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Publication of KR101095818B1 publication Critical patent/KR101095818B1/en

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    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
    • F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
    • F16L3/1008—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members engaging the pipe, cable or tubing, both being made of thin band material completely surrounding the pipe
    • F16L3/1025—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members engaging the pipe, cable or tubing, both being made of thin band material completely surrounding the pipe the members being joined by quick acting means
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/14—Hangers in the form of bands or chains
    • 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
    • F16B2/065—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 screw-thread elements

Abstract

본 발명은 배관용 파이프 행거에 관한 것으로, 더욱 상세하게는 천정의 앵커볼트에 클램프를 연결할 때 클램프 자체에 가공된 너트홀과 조임볼트를 이용하여 간단히 결합작업을 수행할 수 있도록 구성되는 배관용 파이프 행거를 제공함에 그 목적이 있다.
그리고, 이상과 같이 구성되는 본 발명은 앵커볼트의 연결탭과 클램프의 연결작업시 한 손으로의 작업이 가능하면서 기존과 달리 볼트 또는 너트를 떨어뜨릴 염려도 없으며, 작업의 생산성을 현저히 높일 수 있는 등의 효과를 제공하게 된다.The present invention relates to a pipe hanger for plumbing, and more particularly, when connecting a clamp to an anchor bolt of a ceiling, a pipe for plumbing configured to simply perform a coupling operation by using a nut hole and a fastening bolt processed in the clamp itself. The purpose is to provide a hanger.
In addition, the present invention is configured as described above is possible to work with one hand when connecting the connection tab and the clamp of the anchor bolt, unlike the existing, there is no fear to drop the bolt or nut, which can significantly increase the productivity of the work And the like.

Description

배관용 파이프 행거{PIPE HANGER}Pipe hanger for plumbing {PIPE HANGER}

본 발명은 배관용 파이프 행거에 관한 것으로, 더욱 상세하게는 천정의 앵커볼트에 클램프를 연결할 때 클램프 자체에 가공된 너트홀과 원터치조임볼트를 이용하여 간단히 결합작업을 수행할 수 있도록 구성되는 배관용 파이프 행거에 관한 것이다.The present invention relates to a pipe hanger for plumbing, and more particularly, when connecting a clamp to an anchor bolt of a ceiling, the pipe is configured to perform a simple joining operation using a nut hole and a one-touch tightening bolt processed in the clamp itself. It's about a pipe hanger.

일반적으로, 건물의 천장 등에는 여러 용도의 각종 배관 파이프가 고정 설치되는데, 이때 배관 파이프를 천장에 매달리도록 고정시키는 데에는 파이프 행거가 사용된다.In general, various pipes for various purposes are fixedly installed on the ceiling of a building, and at this time, pipe hangers are used to fix the pipes to be suspended from the ceiling.

이러한 파이프 행거는 도1에 도시한 바와 같이 앵커볼트(4)를 천장(5)에 고정시키고, 앵커볼트의 하단측에 연결탭(3)을 나사결합시킨 후, 다시 연결탭의 하단측에 클램프(2)를 연결 결합시키며, 이 클램프에 파이프(1)를 삽입시켜 배관용 파이프를 지지하도록 구성되어 있다.This pipe hanger is fixed to the anchor bolt (4) to the ceiling (5) as shown in Figure 1, after screwing the connecting tab (3) to the lower side of the anchor bolt, and clamps again to the lower side of the connecting tab (2) is connected, and the pipe 1 is inserted in this clamp, and it is comprised so that a piping pipe may be supported.

이때, 연결탭(3)와 클램프(2)의 연결 결합시에 통상적으로 볼트(6)와 너트(7)를 이용하여 결합하게 되는데, 작업자는 한손으로 볼트를 결합홀에 삽입한 상태에서 다른 손으로 너트를 볼트에 나사결합시켜 조이는 수작업을 하게 된다.At this time, when the connection tab 3 and the clamp 2 are coupled, the bolt 6 and the nut 7 are normally coupled, and the operator inserts the bolt into the coupling hole with one hand and the other hand. The screw is screwed into the bolt and the tightening is done manually.

그러나, 이러한 연결탭(3)과 클램프(2)의 연결작업은 손에 각각 볼트(6)와 너트(7)를 쥐고서 작업하기 때문에 자세가 불안정하고, 불안정한 작업자세때문에 볼트 또는 너트를 놓치는 경우가 빈번히 발생되는 등 그 작업의 곤란성과 낮은 생산성 등을 초래하게 된다.However, this connection tab (3) and clamp (2) connection work is carried out by holding the bolt (6) and nut (7) in the hand, respectively, the posture is unstable, and the bolt or nut is missed because of unstable working posture Frequently occurring, it causes the difficulty and low productivity of the work.

본 발명은 상기한 종래기술의 문제를 개선하기 위하여 안출된 것으로, 천정의 앵커볼트에 클램프를 연결할 때 클램프의 제1플랜지 자체에 일체로 가공된 너트홀과, 제2플랜지의 볼트장착홀에 이탈되지 않도록 결합된 조임볼트를 이용하여 간단히 결합작업을 수행할 수 있도록 구성되는 배관용 파이프 행거를 제공함에 그 목적이 있다.The present invention has been made to solve the above-mentioned problems of the prior art, when connecting the clamp to the anchor bolt of the ceiling, the nut hole is integrally processed in the first flange itself of the clamp and the bolt mounting hole of the second flange separated It is an object of the present invention to provide a pipe hanger for piping that is configured to perform a simple coupling operation using a fastening bolt that is not coupled.

상기한 목적을 달성하기 위하여 본 발명은 천장에 고정된 앵커볼트의 연결탭에 볼트장착홀의 조임볼트를 이용하여 클램프를 연결하고, 상기 클램프에 파이프를 삽입시켜 배관용 파이프를 지지하도록 이루어지는 공지의 배관용 파이프 행거에 있어서, 상기 클램프의 제1플랜지 중앙에 펀칭작업을 통해 나선형의 골을 이루는 너트홀이 일체형으로 구비되도록 구성되는 것을 특징으로 하는 배관용 파이프 행거를 제공하게 된다..In order to achieve the above object, the present invention connects a clamp to the connection tab of the anchor bolt fixed to the ceiling by using a fastening bolt of a bolt mounting hole, and inserts a pipe into the clamp to support a pipe for piping. In the pipe hanger for pipes, it is to provide a pipe hanger for pipes, characterized in that configured to be integrally provided with a nut-hole forming a spiral through the punching operation in the center of the first flange of the clamp.

이상과 같이 구성되는 본 발명은 앵커볼트의 연결탭과 클램프의 연결작업시 한 손으로의 작업이 가능하면서 기존과 달리 볼트 또는 너트를 떨어뜨릴 염려도 없으며, 작업의 생산성을 현저히 높일 수 있는 등의 효과를 제공하게 된다The present invention constituted as described above is possible to work with one hand when connecting the connection tab and the clamp of the anchor bolt, and unlike the existing, there is no fear of dropping the bolt or nut, such as to significantly increase the productivity of the work, etc. Will provide an effect

도1은 일반적인 배관용 파이프 행거의 설치상태를 설명하는 단면도,
도2는 본 발명에 따른 배관용 파이프 행거를 나타내는 분해사시도,
도3은 본 발명에 따른 배관용 파이프 행거를 나타내는 요부사시도,
도4는 본 발명에 따른 배관용 파이프 행거의 너트홀 구조를 나타내는 요부사시도,
도5는 본 발명에 따른 배관용 파이프 행거의 볼트장착홀 구조를 나타내는 요부사시도,
도6은 본 발명에 따른 배관용 파이프 행거의 조임볼트 구조를 나타내는 사시도,
도7은 본 발명에 따른 배관용 파이프 행거의 결합구조를 나타내는 단면도이다.1 is a cross-sectional view illustrating an installation state of a pipe hanger for general plumbing;
Figure 2 is an exploded perspective view showing a pipe hanger for piping according to the present invention,
3 is a perspective view showing a pipe hanger for plumbing according to the present invention;
4 is a perspective view showing a nut hole structure of a pipe hanger for pipes according to the present invention;
5 is a perspective view showing the main structure of the bolt mounting hole of the pipe hanger for piping according to the present invention;
Figure 6 is a perspective view showing the structure of the tightening bolt of the pipe hanger for piping according to the present invention,
7 is a cross-sectional view showing a coupling structure of a pipe hanger for piping according to the present invention.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

도2는 본 발명에 따른 배관용 파이프 행거를 나타내는 분해사시도이고, 도3은 본 발명에 따른 배관용 파이프 행거를 나타내는 요부사시도이며, 도4는 본 발명에 따른 배관용 파이프 행거의 너트홀 구조를 나타내는 요부사시도이고, 도5는 본 발명에 따른 배관용 파이프 행거의 볼트장착홀 구조를 나타내는 요부사시도이며, 도6은 본 발명에 따른 배관용 파이프 행거의 조임볼트 구조를 나타내는 사시도이고, 도7은 본 발명에 따른 배관용 파이프 행거의 결합구조를 나타내는 단면도이다.Figure 2 is an exploded perspective view showing a pipe hanger for pipes according to the present invention, Figure 3 is a main perspective view showing a pipe hanger for pipes according to the present invention, Figure 4 is a nut hole structure of the pipe hanger for pipes according to the present invention Fig. 5 is a main part perspective view showing a bolt mounting hole structure of a pipe hanger for a pipe according to the present invention. Fig. 6 is a perspective view showing a structure of a tightening bolt of a pipe hanger for pipe according to the present invention. Sectional drawing which shows the coupling structure of the pipe hanger for pipings which concerns on this invention.

본 발명은 그 일 실시예에 따르면, 도2 및 도3에 도시한 바와 같이 클램프(2)의 제1플랜지(2-1)에 구비되는 너트홀(20)과, 너트홀과 동일한 중심축을 가지면서 클램프의 제2플랜지(2-2)에 구비되는 볼트장착홀(21)과, 볼트장착홀에 전후유동 및 회전이 가능하지만 이탈 또는 분리되지 않도록 조립되면서 너트홀에 나사결합되는 조임볼트(10)로 구성되어 있다.According to one embodiment of the present invention, as shown in FIGS. 2 and 3, the nut hole 20 provided in the first flange 2-1 of the clamp 2 has the same central axis as that of the nut hole. And bolt mounting holes 21 provided in the second flange 2-2 of the clamp, and tightening bolts 10 which are screwed into the nut holes while being assembled so as not to be separated or separated, but may be moved back and forth in the bolt mounting holes 10. It consists of).

이때, 클램프(2)의 제1,2플랜지(2-1,2-2)는 클램프의 상단부에 위치하면서 그 사이에 앵커볼트(4)의 연결탭(3)이 조립되도록 구성되어 있고, 동일한 중심축을 갖는 너트홀(20)과 볼트장착홀(21)이 가공되어 있다.At this time, the first and second flanges 2-1 and 2-2 of the clamp 2 are located at the upper end of the clamp and are configured such that the connecting tab 3 of the anchor bolt 4 is assembled therebetween. The nut hole 20 and the bolt mounting hole 21 which have a central axis are processed.

여기서, 제1플랜지(2-1)의 너트홀(20)은 도4에 도시한 바와 같이 제1플랜지의 중앙에 펀칭작업으로 그 내주면이 나선형의 골을 이루도록 간단히 형성하게 되는데, 이 너트홀의 나선은 일반적인 나사탭을 이용한 산과 골의 나선형태가 아닌 산과 골중 골이 나선형으로 이루어져 나사결합이 매우 간단하거나 손쉬운 구조이다.
또한, 제2플랜지(2-2)의 볼트장착홀(21)은 도5 및 도7에 도시한 바와 같이 그 내경과 동일한 외경을 갖는 조임볼트(10)의 나선부(12)가 억지 끼움방식으로 삽입되면서 그 내경보다 작은 외경을 갖는 축유동홈(13)이 끼워지고, 조임볼트(10)의 축방향유동 및 회전이 가능하면서 이탈을 방지할 수 있도록 구성되어 있다.Here, the nut hole 20 of the first flange (2-1) is simply formed so that the inner circumferential surface of the first flange (2-1) to form a spiral valley by punching in the center of the first flange, the spiral of this nut hole The screw thread is very simple or easy because the valleys of the hills and valleys are spiraled instead of the spiral of the hills and valleys using the general thread tap.
In addition, the bolt mounting hole 21 of the second flange (2-2) as shown in Figs. 5 and 7, the spiral portion 12 of the tightening bolt 10 having the same outer diameter as the inner diameter is forcibly fitted method While being inserted into the shaft flow groove 13 having an outer diameter smaller than the inner diameter is fitted, the axial flow and rotation of the tightening bolt 10 is configured to be prevented while leaving.

그리고, 본 발명의 조임볼트(10)는 도6 및 도7에 도시한 바와 같이 한 손으로도 쉽게 회전이 가능하도록 손잡이를 구비한 조임손잡이부(11)와, 그 외경과 동일한 내경을 갖는 볼트장착홀(21)에 억지끼움방식으로 삽입되어 너트홀(20)에 나사결합되는 나선부(12)와, 조임손잡이부와 나선부 사이에 위치하면서 볼트장착홀의 내경보다 작은 외경을 가지는 축유동홈(13)으로 구성되어 있다.In addition, the tightening bolt 10 of the present invention, as shown in Figures 6 and 7, the tightening knob 11 having a handle so that it can be easily rotated with one hand, and the bolt having the same inner diameter as the outer diameter Axial flow groove which is inserted into the mounting hole 21 by a force fitting method and screwed into the nut hole 20, and positioned between the tightening handle and the spiral portion and having an outer diameter smaller than the inner diameter of the bolt mounting hole. It consists of (13).

또한, 조임볼트(10)를 제2플랜지(2-2)의 볼트장착홀(21)에 삽입하게 되면 나선부(12)가 볼트장착홀에 걸리게 되는데, 이때 어느정도 외력을 가하여 나선부를 억지끼움방식으로 볼트장착홀에 삽입시키게 되고, 이에 따라 조임볼트(10)는 볼트장착홀내에 나선부(12)와 조임손잡이부(11)의 유동홈(13)이 위치하면서 제2플랜지에 장착된 상태를 이루게 된다.In addition, when the tightening bolt 10 is inserted into the bolt mounting hole 21 of the second flange 2-2, the spiral portion 12 is caught in the bolt mounting hole, and at this time, the spiral portion is pressed by an external force to some extent. The bolt mounting hole 10 is inserted into the bolt mounting hole, and thus the tightening bolt 10 is mounted in the second flange while the spiral groove 12 and the flow groove 13 of the tightening knob 11 are positioned in the bolt mounting hole. Is achieved.

여기서, 조임볼트(10)는 나선부(12)와 조임손잡이부(11)의 사이간격 즉, 유동홈(13)의 축방향길이가 볼트장착홀(21)의 두께(축방향길이)보다 길게 형성되어 있어 축방향으로의 유동이 가능하게 되고, 따라서 조임시 회전이 원활하도록 유도하게 된다.Here, the tightening bolt 10 is the interval between the spiral portion 12 and the tightening handle 11, that is, the axial length of the flow groove 13 is longer than the thickness (axial length) of the bolt mounting hole 21 It is formed to enable the flow in the axial direction, thus leading to smooth rotation during tightening.

요컨대, 본 발명은 조임볼트(10)가 클램프(2)중 제2플랜지(2-2)의 볼트장착홀(21)에 억지끼움방식으로 장착되어 축방향의 유동이 가능하면서 볼트장착홀로부터의 이탈이 방지되도록 설치되고, 너트홀(20)이 제1플랜지(2-1)에 구비되도록 구성되어 있다.In other words, in the present invention, the tightening bolt 10 is mounted in the bolt mounting hole 21 of the second flange 2-2 of the clamp 2 in an interference fit manner to allow the axial flow to be carried out from the bolt mounting hole. It is installed to prevent the separation, the nut hole 20 is configured to be provided in the first flange (2-1).

따라서, 본 발명은 클램프(2)의 제1,2플랜지(2-1,2-2) 사이에 연결탭(3)을 끼운 상태에서 볼트장착홀(21)의 조임볼트(10)를 연결탭의 결합홀(3-1)을 통해 너트홀(20)에 나사결합시킴으로써 앵커볼트(4)와 클램프의 연결작업을 간단하면서 용이하게 하도록 구성하는 데에 그 기술적 특징이 있다할 것이다.Accordingly, the present invention connects the fastening bolt 10 of the bolt mounting hole 21 to the connection tab 3 while the connection tab 3 is inserted between the first and second flanges 2-1 and 2-2 of the clamp 2. By screwing the nut hole 20 through the coupling hole (3-1) of the anchor bolt (4) will have a technical feature in the configuration to simplify and facilitate the connection operation of the clamp.

이와 같이, 본 발명의 상세한 설명에서는 구체적인 실시예에 관해 설명하였으나, 이는 본 발명의 범주에서 벗어나지 않는 한도내에서 여러가지 변형이 가능함은 물론이다.As described above, specific embodiments have been described in the detailed description of the present invention, but various modifications may be made without departing from the scope of the present invention.

그러므로, 본 발명의 범위는 상술된 실시예에 의해 한정되어져서는 안되며, 후술하는 청구범위 뿐만 아니라 청구범위와 균등한 구성에 의해 정해져야 함은 당연하다.Therefore, it should be understood that the scope of the present invention should not be limited by the above-described embodiments, but should be defined not only by the claims below but also by the structures equivalent to the claims.

1: 배관용 파이프 2: 클램프 2-1: 제1플랜지 2-2: 제2플랜지 3: 연결탭 4: 앵커볼트 5: 천장 6: 볼트 7: 너트 10: 조임볼트 11: 조임손잡이부 12: 나선부 13: 축유동홈 20: 조임볼트 21: 볼트장착홀 DESCRIPTION OF SYMBOLS 1: Pipe for piping 2: Clamp 2-1: 1st flange 2-2: 2nd flange 3: Connection tab 4: Anchor bolt 5: Ceiling 6: Bolt 7: Nut 10: Tightening bolt 11: Tightening handle 12: Spiral part 13: Shaft flow groove 20: Tightening bolt 21: Bolt mounting hole

Claims (1)

천장(5)에 고정된 앵커볼트(4)의 연결탭(3)에 볼트장착홀(21)의 조임볼트(10)를 이용하여 클램프(2)를 연결하고, 상기 클램프(2)에 파이프(1)를 삽입시켜 배관용 파이프를 지지하도록 이루어지는 공지의 배관용 파이프 행거에 있어서,
상기 클램프(2)의 제1플랜지(2-1) 중앙에 펀칭작업을 통해 나선형의 골을 이루는 너트홀(20)이 일체형으로 구비되도록 구성되는 것을 특징으로 하는 배관용 파이프 행거.The clamp 2 is connected to the connection tab 3 of the anchor bolt 4 fixed to the ceiling 5 using the fastening bolt 10 of the bolt mounting hole 21, and the pipe 2 is connected to the clamp 2. In the known pipe hanger which is inserted so as to support a pipe for pipes,
Pipe hanger for piping, characterized in that configured to be integrally provided with a nut hole (20) forming a helical valley through the punching operation in the center of the first flange (2-1) of the clamp (2).
KR1020100000669A 2010-01-06 2010-01-06 Pipe hanger KR101095818B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101211494B1 (en) * 2012-08-24 2012-12-12 고경화 Apparatus for connecting pipe with increased tensile force and combination by using clamp
KR101304495B1 (en) * 2011-12-28 2013-09-05 고경화 Pipe connection device by screw lock-up type having improved tensile force and easy connection
KR20190001362U (en) 2017-11-30 2019-06-10 현관수 Pipe hanger

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102537526A (en) * 2011-12-29 2012-07-04 大连益多管道有限公司 Pipeline hanger
CN102537527A (en) * 2011-12-29 2012-07-04 大连益多管道有限公司 Internal expansion bolt pipe lifting frame
KR102061304B1 (en) 2017-07-19 2019-12-31 김종원 Building attachment unit and Seismic bracing device containing the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101304495B1 (en) * 2011-12-28 2013-09-05 고경화 Pipe connection device by screw lock-up type having improved tensile force and easy connection
KR101211494B1 (en) * 2012-08-24 2012-12-12 고경화 Apparatus for connecting pipe with increased tensile force and combination by using clamp
KR20190001362U (en) 2017-11-30 2019-06-10 현관수 Pipe hanger

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