KR100836525B1 - Flanged Saddle Fountain - Google Patents

Flanged Saddle Fountain Download PDF

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Publication number
KR100836525B1
KR100836525B1 KR1020060126950A KR20060126950A KR100836525B1 KR 100836525 B1 KR100836525 B1 KR 100836525B1 KR 1020060126950 A KR1020060126950 A KR 1020060126950A KR 20060126950 A KR20060126950 A KR 20060126950A KR 100836525 B1 KR100836525 B1 KR 100836525B1
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KR
South Korea
Prior art keywords
saddle
fountain
bolt
flange
flanged
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KR1020060126950A
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Korean (ko)
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KR20070001042A (en
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김종재
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주식회사 하이스텐
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Priority to KR1020060126950A priority Critical patent/KR100836525B1/en
Publication of KR20070001042A publication Critical patent/KR20070001042A/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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/04—Arrangements for preventing erosion, not otherwise provided for
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Catching Or Destruction (AREA)

Abstract

본 발명의 플랜지식 새들 분수전은, 분기를 원하는 상수관의 외주면 상부에 새들이 결합되고 새들 상부에 분수전이 결합되는 플랜지식 새들 분수전에 있어서, 분수전의 플랜지와 새들의 플랜지 결합부에 다수의 볼트관통공이 형성되어 아래에서 위로 볼트몸체가 관통되어 상부에서 너트로 조여져 새들과 분수전이 결합되게 구성되되, 상기 플랜지 결합부의 볼트관통공 하부에는 볼트머리가 수용되는 수용홈이 형성되고, 볼트머리와 새들의 접촉면, 볼트관통공과 볼트몸체의 접촉면, 너트와 플랜지의 접촉면 사이에 각각 절연체가 개재되어 이종금속 부식을 방지하게 구성된 플랜지식 새들 분수전에 관한 것이며, 또한 상기 볼트머리와 새들의 접촉면 사이에 개재되는 절연체가 수용홈의 내측면과 볼트머리의 외측면 사이에 엄밀하게 끼워져 볼트가 헛돌지 않게 구성된다.In the flanged saddle fountain of the present invention, in the flanged saddle fountain where the birds are coupled to the upper circumferential surface of the water pipe to be diverged and the fountain is coupled to the saddle, a plurality of bolts are provided at the flange coupling part of the flange and the saddle of the fountain. The through hole is formed from the bottom through the bolt body is tightened with a nut from the top is configured to be combined with the saddle and the fountain, the lower portion of the bolt through hole of the flange coupling portion is formed in the receiving groove for receiving the bolt head, bolt head and saddle And a flange saddle water fountain configured to prevent corrosion of dissimilar metals by interposing an insulator between a contact surface of a bolt through hole, a contact surface of the bolt body, and a contact surface of a nut and a flange, and also interposed between the bolt head and the contact surface of the saddle. The insulator is tightly sandwiched between the inner side of the receiving groove and the outer side of the bolt head, It consists not supported.

플랜지식 새들 분수전, 이종금속 부식 Flanged saddle fountain, dissimilar metal corrosion

Description

플랜지식 새들 분수전{omitted}Flanged saddle fountain

도 1은 종래의 나사식 새들 분수전을 나타낸 도면1 is a view showing a conventional screw saddle fountain

도 2는 종래의 플랜지식 새들 분수전을 나타낸 도면Figure 2 is a view showing a conventional flanged saddle fountain

도 3은 본 발명의 플랜지식 새들 분수전의 분해 사시도Figure 3 is an exploded perspective view of the flanged saddle fountain before the present invention

도 4는 본 발명에 있어서, 볼트 접촉면 사이에 절연체가 개재된 실시예를 나타낸 도면4 is a view showing an embodiment in which an insulator is interposed between bolt contact surfaces in the present invention.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

10 : 분수전 11 : 플랜지10: before the fountain 11: flange

20 : 새들 21 : 플랜지 결합부20: saddle 21: flange coupling

31 : 볼트 40 : 수용홈31: bolt 40: receiving groove

39, 39a, 39b : 절연체39, 39a, 39b: insulator

본 발명은 플랜지식 새들 분수전에 관한 것으로, 스텐인레스관, 강관, 동관, PE관으로 이루어진 상수관의 분기작업 시에 사용되어지는 것이다.The present invention relates to a flanged saddle fountain, which is used in the branching operation of the water pipe consisting of stainless steel pipe, steel pipe, copper pipe, PE pipe.

종래의 새들 분수전의 일반적인 구성은, 도 1 또는 도 2에 도시된 바와 같 이, 분기를 원하는 상수관의 상부에 새들(20)을 끼우고 하부에는 밴드(32)를 끼운 후, 상기 새들과 밴드의 측면을 볼트와 너트로 조여 주도록 되어 있고, 상기 새들의 중앙 내측에는 개스킷(34)이 끼워지며 새들의 상부에는 상부캡(12) 및 분수전봉(13)이 구비된 분수전(10)의 몸체가 결합된다. 몸체내부에는 분수전봉의 회전에 따라 상부캡(12) 또는 지수관(35)으로 수도물을 분출하는 볼(36)이 내장되게 구성된다. 그리고 상부캡(12)을 열고 도시되지 아니한 천공기를 끼워 개스킷(34) 중앙에서 상수관(30)을 천공할 수 있도록 되어 있으며, 이와 같은 새들 분수전의 구성은 공지되어 있다. 또한, 종래의 새들(20)과 밴드(32)는 철재 주물로서 표면에 부식방지용 도장이 되어지며, 상기 분수전은 몸체와, 볼, 분수전봉, 상부캡 등의 구성품이 스테인레스 또는 동합금과 같이 내식성과 강도 등의 기계적 성질이 우수한 재질로 제작된다.The general configuration of the conventional saddle fountain, as shown in Figure 1 or 2, after inserting the saddle 20 in the upper part of the water pipe to be branched and the band 32 in the lower part, the saddle and the band It is to tighten the side of the bolt and nut, the gasket 34 is fitted inside the center of the birds and the upper body of the fountain (10) is provided with the upper cap 12 and the fountain rod 13 on the top of the birds. Is combined. Inside the body is configured to have a ball 36 for ejecting tap water to the upper cap 12 or the water pipe 35 in accordance with the rotation of the fountain front. And open the upper cap 12 to insert a puncher (not shown) to puncture the water pipe 30 in the center of the gasket 34, the configuration of such a saddle fountain is known. In addition, the conventional saddle 20 and the band 32 is a steel casting is coated on the surface to prevent corrosion, the fountain is a body, a ball, a fountain, the top cap, such as components such as stainless steel or copper alloy corrosion resistance It is made of a material with excellent mechanical properties such as over strength.

한편, 일반적으로 새들 분수전은 새들과 분수전의 몸체에 나사부(23)가 형성되어 나사 결합되는 나사식 새들 분수전(도 1 참조)과, 분수전의 몸체 하부에 플랜지(11)가 형성되고 새들(20) 상부면에는 플랜지 결합부(21)가 형성되어 상기 플랜지와 플랜지 결합부를 볼트(31)로 조여 결합하는 플랜지식 새들 분수전(도 2 참조)이 있다.On the other hand, in general, the saddle fountain is a threaded saddle fountain (see Fig. 1) that is screwed to form a screw 23 in the body of the saddle and fountain, and the flange 11 is formed in the lower portion of the fountain before the saddle ( 20) On the upper surface there is a flanged saddle fountain (see Fig. 2) is formed by a flange coupling portion 21 is formed by tightening the flange and the flange coupling portion with a bolt (31).

그런데, 종래의 새들 분수전은 주물인 새들과 주로 스테인레스 또는 동합금으로 제작되는 분수전의 재질이 서로 달라 결합부위에 이종금속 부식이 발생하는 문제가 있었다. 즉, 철재 주물인 새들과 스테인레스 또는 동합금인 분수전의 몸체를 직접 나사 결합하는 방식은 나사부(23)에 이종금속 부식이 발생하는 문제가 있 었으며, 분수전의 몸체 하부에 플랜지를 형성하고 새들에는 플랜지 결합부를 형성하여 볼트로 결합하는 플랜지 결합 방식은 새들의 플랜지 결합부에 볼트결합용으로 형성된 너트 홈(24) 부위에 이종금속 부식이 발생하는 문제가 있었다.However, the conventional saddle fountain has a problem that different metal corrosion occurs at the joint site because the material of the fountain and the fountain is mainly made of stainless steel or copper alloy. In other words, the method of directly screwing the steel casting saddle and the stainless steel or copper alloy water fountain body has a problem in that dissimilar metal corrosion occurs in the threaded portion 23. A flange is formed at the lower portion of the water body and the flange is connected to the saddle. Flange coupling method of forming a portion by coupling to the bolt had a problem that different metal corrosion occurs in the nut groove 24 formed for the bolt coupling portion of the flange coupling portion of the saddle.

본 발명은 상기와 같은 문제를 해결하기 위하여 제안된 것으로서, 플랜지식 새들 분수전에 있어서, 분수전의 플랜지에 형성되는 볼트관통공에 대응하여 새들의 플랜지 결합부에도 볼트관통공이 형성되어 볼트 몸체가 아래에서 위로 관통하여 상부에서 너트로 조여 결합되되 새들의 볼트관통공 하부에 볼트머리가 수용되는 수용홈이 형성되고 볼트의 접촉면 부위에 절연체가 개재되어 이종금속 부식을 방지하는 것이 목적이다.The present invention has been proposed to solve the above problems, in the flanged saddle fountain, the bolt through-hole is also formed in the flange coupling portion of the saddle corresponding to the bolt through-hole formed in the flange of the fountain before the bolt body below It is intended to prevent the dissipation of dissimilar metals by penetrating through the upper part of the upper part of the bolt through-hole to accommodate the bolt groove is accommodated in the bottom of the bird through the insulator is interposed therebetween.

이하 제시된 도면을 참조하여 본 발명의 플랜지식 새들 분수전을 상세히 설명하면 다음과 같다.Hereinafter, the flanged saddle fountain of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 종래의 나사식 새들 분수전을 나타낸 도면이고, 도 2는 종래의 플랜지식 새들 분수전을 나타낸 도면이고, 도 3은 본 발명의 플랜지식 새들 분수전의 분해 사시도이고, 도 4는 본 발명에 있어서, 볼트 접촉면 사이에 절연체가 개재된 실시예를 나타낸 도면이다.1 is a view showing a conventional threaded saddle fountain, Figure 2 is a view showing a conventional flanged saddle fountain, Figure 3 is an exploded perspective view of the flanged saddle fountain of the present invention, Figure 4 is the present invention A diagram showing an embodiment in which an insulator is interposed between bolt contact surfaces.

본 발명의 플랜지식 새들 분수전은, 분기를 원하는 상수관(30)의 외주면 상부에 새들(20)이 결합되고 새들 상부에 분수전(10)이 결합되는 플랜지식 새들 분수전에 있어서, 분수전의 플랜지(11)와 새들의 플랜지 결합부(21)에 다수의 볼트관통 공이 형성되어 아래에서 위로 볼트몸체가 관통되어 상부에서 너트(33)로 조여져 새들과 분수전이 결합되게 구성되되, 상기 플랜지 결합부의 볼트관통공 하부에는 볼트머리가 수용되는 수용홈(40)이 형성되고, 볼트머리와 새들의 접촉면, 볼트관통공과 볼트몸체의 접촉면, 너트와 플랜지의 접촉면 사이에 각각 절연체(39)(39a)(39b)가 개재되어 이종금속 부식을 방지하게 구성된 것이 특징인 플랜지식 새들 분수전에 관한 것이다.In the flanged saddle fountain of the present invention, in the flanged saddle fountain in which the saddle 20 is coupled to the upper circumferential surface of the water pipe 30 to be branched and the fountain 10 is coupled to the top of the saddle, the flange before the fountain (11) and a plurality of bolt through holes are formed in the flange coupling portion 21 of the saddle through the bolt body is penetrated from the bottom up and tightened with a nut 33 from the top is configured to combine the saddle and the water fountain, the bolt of the flange coupling portion An accommodating groove 40 is formed in the lower part of the through hole, and the insulator 39, 39a, 39b is formed between the contact surface of the bolt head and the bird, the contact surface of the bolt through hole and the bolt body, and the contact surface of the nut and the flange, respectively. Flanged saddle fountain, characterized by interposed) to prevent dissimilar metal corrosion.

상기 수용홈(40)은 타원형이나 다각형으로 형성되어 볼트머리와 새들 사이에 개재되는 절연체(39)의 측면이 엄밀하게 밀착하여 삽입되게 구성되고, 이 절연체(39)의 중심에는 육각 머리 볼트의 볼트머리 측면이 엄밀하게 밀착하여 삽입되는 홈이 형성되고, 이 홈의 중심부에는 볼트몸체가 관통되는 관통공이 형성되어, 상기 육각 머리 볼트의 볼트머리가 헛돌지 않고 너트에 의하여 조여지게 구성되는 것이 바람직하다.(도 4 참조)The receiving groove 40 is formed in an oval or polygonal shape so that the side of the insulator 39 interposed between the bolt head and the birds is inserted in close contact with each other, and a bolt of a hexagon head bolt is formed at the center of the insulator 39. It is preferable that the side of the head is formed to be in close contact with each other, and a through hole through which the bolt body penetrates is formed in the center of the groove so that the bolt head of the hexagon head bolt is tightened by a nut without turning. (See Figure 4)

일반적으로 새들 분수전은 상수관(30)의 상부에 결합되는 새들(20)과, 새들의 상부에 결합되는 분수전(10)의 두 부분으로 크게 구성되며, 새들을 상수관에 결합하기 위하여 새들의 반대편에 밴드(32)가 추가로 구성될 수 있다.In general, the saddle fountain consists of two parts: birds 20 coupled to the top of the water pipe 30, and fountain 10 coupled to the top of the birds. On the opposite side of the band 32 may be further configured.

새들의 상부에 분수전을 결합하는 방식에 따라 나사식 새들 분수전과 플랜지식 새들 분수전으로 구분해 볼 수 있는 데, 전자는 도 1에 도시된 바와 같이 분수전의 몸체 하부와 새들의 상부에 나사부(23)를 형성하여 직접적으로 새들과 분수전을 나사 결합하는 방식으로서, 종래의 나사식 새들 분수전에 있어서 철재 새들과 스테인레스재 또는 동합금재인 분수전을 나사 결합하는 경우에 나사부(23)의 이종 금속 부식을 방지하기 어려운 문제가 있었으며, 후자는 도 2에 도시된 바와 같이 분수전의 몸체 하부에 플랜지를 형성하고 새들의 플랜지 결합부와 볼트(31)를 사용하여 결합하는 방식으로서 종래의 철재 새들과 볼트의 재질이 달라 너트 홈(24) 부위에 이종금속 부식이 발생하는 문제가 있었다.According to the method of coupling the fountain field to the upper part of the birds can be divided into a screw saddle fountain and a flanged saddle fountain, the former is shown in FIG. 23) is a method of directly screwing the saddle and the fractional field by forming a screw, the heterogeneous metal corrosion of the screw 23 in the case of screwing the steel saddle and the fountain of the stainless steel or copper alloy in the conventional screw saddle fountain There was a problem that is difficult to prevent, the latter form a flange in the lower part of the body before the fountain, as shown in Figure 2 by using the flange coupling portion and the bolt 31 of the saddle of the conventional steel saddle and bolt Different materials had a problem that different metal corrosion occurs in the nut groove 24.

본 발명의 플랜지식 새들 분수전은 종래의 플랜지식 새들 분수전에서 너트 홈(24) 부위에 발생하는 이종금속 부식 문제를 해결하기 위하여 발명된 것으로서, 상기 너트 홈(24) 대신에 그 자리에 볼트관통공을 형성하고 아래에서 위로 볼트몸체를 관통하여 삽입하고 상부에서 너트(33)로 조임으로서 새들과 분수전이 결합되게 구성된 것이다.The flanged saddle fountain of the present invention has been invented to solve the problem of dissimilar metal corrosion occurring in the nut groove 24 in the conventional flanged saddle fountain, the bolt in place instead of the nut groove 24 By forming a through hole and inserting through the bolt body from below and tightening with a nut 33 at the top, the saddle and the fountain field are configured to be coupled.

본 발명에 있어서, 상부에서 너트(33)로 볼트(31)를 조여주게 구성하는 것은 새들을 상수관에 결합한 상태에서 용이하게 풀고 결합하기 위한 것으로서 반대로 구성하면 너트(33)가 새들과 상수관 사이에 놓여지게 되어 한번 볼트(31)와 너트(33)를 풀고나면 다시 결합하기 어렵기 때문이다.In the present invention, the bolt 31 is tightened with the nut 33 at the top to easily loosen and couple the birds in the state of being coupled to the water pipe. This is because it is difficult to recombine once the bolt 31 and the nut 33 are loosened to be placed on.

상기와 같이 구성된 본 발명의 플랜지식 새들 분수전은 종래의 플랜지식 새들 분수전이 지니고 있던 새들과 결합용 볼트 사이의 이종금속 부식을 해결한 것으로서 종래의 플랜지식 새들 분수전에 비하여 훨씬 오래긴 수명과 안전성을 가지게 되므로 비록 발명의 구성은 간단하지만 그 효과는 매우 큰 유용한 발명이다.The flanged saddle fountain of the present invention configured as described above solves the dissimilar metal corrosion between the saddle and the coupling bolt of the conventional flanged saddle fountain, and has a much longer life and safety than the conventional flanged saddle fountain. Although it is because the configuration of the invention is simple, the effect is a very useful invention.

Claims (2)

삭제delete 분기를 원하는 상수관의 외주면 상부에 새들이 결합되고 새들 상부에 분수전이 결합되는 플랜지식 새들 분수전에 있어서, 분수전의 플랜지와 새들의 플랜지 결합부에 다수의 볼트관통공이 형성되어 아래에서 위로 볼트몸체가 관통되어 상부에서 너트로 조여져 새들과 분수전이 결합되게 구성되되, 상기 플랜지 결합부의 볼트관통공 하부에는 볼트머리가 수용되는 수용홈이 형성되고, 볼트머리와 새들의 접촉면, 볼트관통공과 볼트몸체의 접촉면, 너트와 플랜지의 접촉면 사이에 각각 절연체가 개재되어 이종금속 부식을 방지하게 구성되며, 상기 수용홈은 타원형이나 다각형으로 형성되어 볼트머리와 새들 사이에 개재되는 절연체의 측면이 엄밀하게 밀착하여 삽입되게 구성되고, 이 절연체의 중심에는 육각 머리 볼트의 볼트머리 측면이 엄밀하게 밀착하여 삽입되는 홈이 형성되고, 이 홈의 중심부에는 볼트몸체가 관통되는 관통공이 형성되어, 상기 육각 머리 볼트의 볼트머리가 헛돌지 않고 너트에 의하여 조여지게 구성된 것이 특징인 플랜지식 새들 분수전.In the flanged saddle fountain where birds are coupled to the upper circumferential surface of the water pipe to be branched and the fountain is coupled to the top of the saddle, a plurality of bolt through holes are formed at the flange coupling part of the fountain and the bolt body is formed from below. It is penetrated and tightened with a nut at the upper part to be combined with the saddle and the fountain. The lower part of the bolt through-hole of the flange coupling part has an accommodating groove for accommodating the bolt head. Insulation is interposed between the contact surface of the nut and the flange to prevent corrosion of dissimilar metals, and the receiving groove is formed in an oval or polygonal shape so that the side of the insulator interposed between the bolt head and the saddle is closely inserted. In the center of this insulator, the bolt head side of the hexagon head bolt is strictly pressed. Flange saddle fountain, characterized in that the groove is formed to be inserted and inserted into the center of the groove, the through hole through which the bolt body penetrates, the bolt head of the hexagon head bolt is tightened by a nut without turning.
KR1020060126950A 2006-12-11 2006-12-11 Flanged Saddle Fountain KR100836525B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990035369U (en) * 1999-06-11 1999-09-06 김재현 Pipe flange protective plate for pipe arangement
KR200366452Y1 (en) * 2004-06-04 2004-11-09 주식회사 하이스텐 Saddle for Water Works
KR20040098334A (en) * 2003-05-14 2004-11-20 삼성전자주식회사 Apparatus for washing chemical and mechanical drilling equipment
KR200427877Y1 (en) 2006-06-30 2006-10-02 주식회사동원프라스틱 A flange connecting assembly with A pipe and connector by one coupling for having type adapter
KR20060115481A (en) * 2005-05-06 2006-11-09 엘지전자 주식회사 Structure for insulation of vibration in dish washing machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990035369U (en) * 1999-06-11 1999-09-06 김재현 Pipe flange protective plate for pipe arangement
KR20040098334A (en) * 2003-05-14 2004-11-20 삼성전자주식회사 Apparatus for washing chemical and mechanical drilling equipment
KR200366452Y1 (en) * 2004-06-04 2004-11-09 주식회사 하이스텐 Saddle for Water Works
KR20060115481A (en) * 2005-05-06 2006-11-09 엘지전자 주식회사 Structure for insulation of vibration in dish washing machine
KR200427877Y1 (en) 2006-06-30 2006-10-02 주식회사동원프라스틱 A flange connecting assembly with A pipe and connector by one coupling for having type adapter

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