KR100846468B1 - Manufacturing method of pipe connector - Google Patents

Manufacturing method of pipe connector Download PDF

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Publication number
KR100846468B1
KR100846468B1 KR1020070042048A KR20070042048A KR100846468B1 KR 100846468 B1 KR100846468 B1 KR 100846468B1 KR 1020070042048 A KR1020070042048 A KR 1020070042048A KR 20070042048 A KR20070042048 A KR 20070042048A KR 100846468 B1 KR100846468 B1 KR 100846468B1
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KR
South Korea
Prior art keywords
inner member
pipe connector
diameter portion
short diameter
pipe
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KR1020070042048A
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Korean (ko)
Inventor
오성만
오현진
Original Assignee
주식회사 엑스텍
오성만
오현진
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Priority to KR1020070042048A priority Critical patent/KR100846468B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/154—Making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

A manufacturing method of a pipe connector is provided to accurately machine a pipe-inserting space of the pipe connector difficult to be cut by using a stainless steel workpiece with excellent durability. A manufacturing method of a pipe connector comprises: a step(S110) of preparing a tubular inner member; a step(S120) of preparing an outer member which is shorter than the inner member, including a tubular short diameter part of which an inner diameter is smaller than an outer diameter of the inner member and a tubular long diameter part of which an inner diameter is larger than the outer diameter of the inner member, the short diameter part and the long diameter part being integrally connected to each other such that inner parts of the short diameter part and the long diameter part communicate with each other; a step(S130) of inserting the inner member into the short diameter part after heating the outer member; a step(S140) of cooling the outer member such that an inner side of the short diameter part is joined with a portion of an outer side of the inner member; and a step(S150) of welding a joined portion of the short diameter part and the inner member such that ends of the short diameter part and the inner member are aligned with each other.

Description

파이프연결구의 제조방법{Manufacturing method of pipe connector}Manufacturing method of pipe connector

도 1은 본 발명의 일 실시예에 따른 파이프연결구의 제조방법을 나타낸 흐름도,1 is a flow chart showing a method of manufacturing a pipe connector according to an embodiment of the present invention,

도 2는 도 1에 나타낸 제조방법에 의하여 제조된 파이프연결구의 내적부재 및 외적부재가 분리된 상태를 나타낸 사시도,Figure 2 is a perspective view showing a state in which the inner member and the outer member of the pipe connector manufactured by the manufacturing method shown in Figure 1 separated;

도 3은 도 2에 나타낸 Ⅲ-Ⅲ선에 따른 단면도,3 is a cross-sectional view taken along line III-III shown in FIG. 2;

도 4는 도 2에 나타낸 파이프연결구의 내적부재 및 외적부재가 결합된 상태를 나타낸 사시도,4 is a perspective view showing a state in which the inner member and the outer member of the pipe connector shown in FIG.

도 5는 도 4에 나타낸 파이프연결구의 정면도,5 is a front view of the pipe connector shown in FIG.

도 6은 도 4에 나타낸 Ⅳ-Ⅳ선에 따른 단면도이다.FIG. 6 is a cross-sectional view taken along line IV-IV shown in FIG. 4.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 파이프연결구10: pipe connector

100 : 내적부재 101 : 홀100: inner member 101: hole

200 : 외적부재 201 : 단경부 203 : 장경부200: external member 201: short diameter portion 203: long diameter portion

본 발명은 수도밸브용 어댑터에 구비된 파이프연결구를 제조하는 방법에 관 한 것으로, 보다 구체적으로는 내구성 및 내식성이 우수한 스테인리스강을 사용하여 정밀하게 가공한 파이프연결구의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a pipe connector provided in the adapter for a water valve, and more particularly, to a method for manufacturing a pipe connector precisely processed using stainless steel having excellent durability and corrosion resistance.

수도밸브용 어댑터에 사용되는 파이프연결구는, 파이프가 파이프연결구에 더욱 단단하게 결합되고 누수를 방지할 수 있도록 내측에는 관로가 형성되어 파이프가 직접 연결되는 부재를 구비하고 외측에는 상기 파이프가 삽입되어 결합되는 공간이 형성된 부재를 구비한 것이 바람직하다.Pipe connector used in the adapter for water valve, the pipe is formed in the inner side so that the pipe is more tightly coupled to the pipe connection and prevent leakage, the pipe is directly connected to the member and the outside of the pipe is inserted into the coupling It is preferable to have a member with a space to be formed.

상기 파이프가 삽입되어 결합되는 공간은 연결부위를 더욱 더 견고하게 하고, 파이프에서 누수를 방지하기 위해서 요구되는 부분이다.The space in which the pipe is inserted and joined is a part that is required to further strengthen the connection portion and to prevent leakage in the pipe.

이에 종래에는 가공이 쉽고, 작업성이 우수한 황동을 소재로 사용하여 상기 파이프가 삽입되어 결합되는 공간을 절삭 가공하는 방법으로 파이프연결구를 제조하여 왔다.In the related art, a pipe connector has been manufactured by a method of cutting a space in which the pipe is inserted and coupled using brass as a material, which is easy to process and has excellent workability.

황동은 인류가 가장 많이 사용한 구리합금으로 구리·아연 합금 가운데 아연이 20％ 이하인 것을 단동(丹銅)이라 하고, 그 이상을 황동이라고 한다. 황동은 아연 30％의 7-3황동과 아연 35％의 것을 많이 사용하는데, 는 적당한 강도와 전연성(展延性)을 지니며, 상온 가공과 다루기 쉬운 합금으로 판을 여러 형태로 성형 가공하여 이용하는 등 용도가 넓다. Brass is the most popular copper alloy used by mankind. Among copper and zinc alloys, zinc is 20% or less, called dandong, and more is called brass. Brass is made of 7% brass of 30% of zinc and 35% of zinc, which has moderate strength and malleability. Wide use

그러나 상기 황동으로 만들어진 파이프연결구는 가공이 용이하다는 장점은 있었지만 파이프연결구로써는 내구성이 약하여 문제가 된다.However, although the pipe connector made of brass had the advantage of being easy to process, the pipe connector is weak in durability and becomes a problem.

이에 내구성 및 내식성이 우수한 스테인리스강을 소재로 사용한 파이프연결구가 요구되나, 스테인리스강은 내구성이 높기 때문에 절삭공구로는 상기 파이프가 삽입되는 공간과 같이 정교한 부분을 가공하기가 어렵다는 문제가 되고 있다.This requires a pipe connector made of stainless steel with excellent durability and corrosion resistance. However, since stainless steel has high durability, it is difficult to process a precise part such as a space into which the pipe is inserted with a cutting tool.

본 발명은 상술한 문제점을 해결하기 위해 창안된 것으로, 내구성이 우수한 스테인리스강을 소재로 사용하면서도 절삭가공하기 어려운 파이프가 삽입되는 공간을 정밀하게 가공할 수 있는 파이프연결구의 제조방법을 제공하는 데 그 목적이 있다.The present invention was devised to solve the above problems, and provides a method of manufacturing a pipe connector that can precisely process a space into which a pipe which is difficult to cut is inserted while using stainless steel having excellent durability. There is a purpose.

본 발명의 다른 목적 및 장점들은 하기에 설명될 것이며, 본 발명의 실시예에 의해 알게 될 것이다. 또한 본 발명의 목적 및 장점들은 특허청구범위에 나타낸 수단 및 조합에 의해 실현될 수 있다. Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Further objects and advantages of the invention may be realized by the means and combinations indicated in the claims.

본 발명은 수도관 밸브연결용 어댑터에 사용되는 파이프연결구의 제조방법에 관한 것으로, 보다 구체적으로는 a)관형의 내적부재를 준비하는 단계; b)상기 내적부재의 외경보다 작은 내경을 갖는 관형의 단경부와 상기 내적부재의 외경보다 큰 내경을 갖는 관형의 장경부를 포함하며, 상기 단경부와 장경부는 내부가 연통되도록 일체로 연결된 외적부재를 준비하는 단계; c)상기 외적부재를 가열한 후 상기 내적부재를 상기 단경부 내측으로 삽입하는 단계; d)상기 단경부 내측과 상기 내적부재의 외측 일부가 접합되도록 상기 외적부재를 냉각하는 단계; 및 e)상기 단경부와 상기 내적부재가 접합된 부분을 용접하는 단계를 포함하는 파이프 연결구의 제조방법에 관한 것이다.The present invention relates to a method for producing a pipe connector used in the adapter for water pipe valve connection, and more specifically, a) preparing a tubular inner member; b) a tubular short diameter portion having an inner diameter smaller than the outer diameter of the inner member and a tubular long diameter portion having an inner diameter larger than the outer diameter of the inner member, wherein the short diameter portion and the long diameter portion are integrally connected to communicate with the inside; Preparing a; c) inserting the inner member into the short diameter part after heating the outer member; d) cooling the outer member such that an inner portion of the short diameter portion and an outer portion of the inner member are joined; And e) welding a portion in which the short diameter portion and the inner member are joined to each other.

상기 단경부는 상기 내적부재보다 길이가 짧고, 상기 단경부와 상기 내적부 재는 끝단이 일치하도록 접합된 것이 바람직하다.The shorter diameter portion is shorter in length than the inner member, and the shorter diameter portion and the inner member are preferably joined so that their ends coincide.

또한, 상기 내적부재는 상기 단경부와 접합되지 않은 외측 일부에 나선을 형성하고, 상기 외적부재는 외측에 나선을 형성할 수 있다.In addition, the inner member may form a spiral on the outer portion that is not bonded to the short diameter portion, the outer member may form a spiral on the outer side.

게다가, 상기 내적부재 및 상기 외적부재는 스테인리스강을 소재로 사용한 것이 바람직하다.In addition, the inner member and the outer member is preferably made of stainless steel as a material.

이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

도 1은 본 발명의 일 실시예에 따른 파이프연결구의 제조방법을 나타낸 흐름도이다.1 is a flowchart illustrating a method of manufacturing a pipe connector according to an embodiment of the present invention.

이하, 도 1을 참조하여 본 발명의 일 실시예에 따라 파이프연결구를 제조하는 과정에 대한 흐름을 상세하게 설명하도록 한다. Hereinafter, with reference to Figure 1 will be described in detail the flow for the process of manufacturing the pipe connector according to an embodiment of the present invention.

도 1에 도시된 바와 같이, 본 발명의 일 실시예에 따른 파이프연결구(10)의 제조방법은 a)내적부재준비단계(S110), b)외적부재준비단계(S120), c)가열 및 삽입단계(S130), d)냉각단계(S140), e)용접단계(S150)를 포함한다.As shown in Figure 1, the manufacturing method of the pipe connector 10 according to an embodiment of the present invention is a) internal member preparation step (S110), b) external member preparation step (S120), c) heating and insertion Step S130, d) cooling step (S140), e) welding step (S150).

상기 a)내적부재준비단계(S110)에서는 관형의 내적부재(100)를 준비한다. In the a) internal member preparation step (S110), a tubular internal member 100 is prepared.

상기 b)외적부재준비단계(S120)에서는 상기 내적부재(100)의 외경보다 작은 내경을 갖는 관형의 단경부(201)와, 상기 내적부재(100)의 외경보다 큰 내경을 갖는 관형의 장경부(203)를 포함하며, 상기 단경부(201)와 장경부(203)는 내부가 연통되도록 일체로 연결된 외적부재(200)를 준비한다.In the b) external member preparation step (S120), a tubular short diameter portion 201 having an inner diameter smaller than the outer diameter of the inner member 100 and a tubular long diameter portion having an inner diameter larger than the outer diameter of the inner member 100 are provided. 203, wherein the short diameter portion 201 and the long diameter portion 203 prepare the external member 200 which is integrally connected to communicate with the inside thereof.

상기 파이프연결구(10)는 내적부재(100)와 외적부재(200)를 별도로 준비하고 이를 접합하는 것이므로 상기 내적부재(100)와 상기 외적부재(200)의 사이에 파이프가 삽입되는 공간을 따로 가공할 필요가 없다.Since the pipe connector 10 is to prepare the inner member 100 and the outer member 200 separately and to bond the pipe connector 10 separately, the pipe connector 10 separately processes the space where the pipe is inserted between the inner member 100 and the outer member 200. There is no need to do it.

또한, 상기 외적부재(200)는 단경부(201)와 장경부(203)를 포함하여 내측으로 단차가 진 홀이 형성되므로 상기 내적부재(100)를 상기 내적부재(100)의 외경보다 작은 내경을 갖는 단경부(201)의 내측에 삽입하여 접합한 경우 상기 내적부재(100)보다 상대적으로 내경이 큰 장경부(203) 사이에 소정의 공간이 형성되고, 상기 공간이 파이프가 삽입되는 공간이 된다.In addition, since the external member 200 includes a short diameter portion 201 and a long diameter portion 203, an inner stepped hole is formed so that the inner member 100 has an inner diameter smaller than the outer diameter of the inner member 100. When the inner diameter of the short diameter portion 201 is inserted into and bonded to each other, a predetermined space is formed between the long diameter portion 203 having a larger inner diameter than the inner member 100, and the space is a space into which the pipe is inserted. do.

상기 c)가열 및 삽입단계(S130)에서는 상기 외적부재(200)를 가열한 후 상기 내적부재(100)를 상기 단경부(201) 내측으로 삽입한다.In the c) heating and inserting step (S130), the inner member 100 is inserted into the short diameter portion 201 after the outer member 200 is heated.

상기 내적부재(100)의 외경보다 작은 내경을 갖는 단경부(201)의 내측에 상기 내적부재(100)를 삽입할 수 있도록 상기 단경부(201)의 내경이 상기 내적부재(100)의 외경보다 소정의 크기만큼 커질 때까지 상기 외적부재(200)에 열을 가하 여 팽창시킨다.The inner diameter of the short diameter portion 201 is larger than the outer diameter of the inner member 100 so that the inner member 100 can be inserted into the inner end portion 201 having an inner diameter smaller than the outer diameter of the inner member 100. It expands by applying heat to the external member 200 until it becomes large by a predetermined size.

상기 d)냉각단계(S140)에서는 상기 단경부(201) 내측과 상기 내적부재(100)의 외측 일부가 접합되도록 상기 외적부재(200)를 냉각하여 수축시킨다.In the d) cooling step (S140), the outer member 200 is cooled and contracted so that the inner portion of the short diameter portion 201 and the outer portion of the inner member 100 are joined.

상기 c)가열 및 삽입단계(S130)에 의해 상기 내적부재(100)가 상기 단경부(201)의 내측에 삽입되면, 상기 외적부재(200)를 냉각하여 수축시킨다. 상기 외적부재(200)는 냉각에 의해 수축되면 내경이 작아지게 되고, 상기 내적부재(100)의 외측 일부와 상기 단경부(201)의 내측은 접합된다. When the inner member 100 is inserted into the short diameter portion 201 by the heating and inserting step (S130), the outer member 200 is cooled and contracted. When the outer member 200 is contracted by cooling, the inner diameter is reduced, and the outer portion of the inner member 100 and the inner side of the short diameter portion 201 are joined.

상기 e)용접단계(S150)에서는 상기 d)냉각단계(S140)에 의해 접합된 상기 단경부(201)와 상기 내적부재(100)의 접합된 부분이 더욱 견고하게 접합되도록 용접한다.In the e) welding step (S150) is welded so that the bonded portion of the short diameter portion 201 and the inner member 100 bonded by the d) cooling step (S140) is more firmly bonded.

이와 같이, 상기 내적부재(100)와 상기 외적부재(200)를 용접하는 단계까지 마치게 되면 파이프가 삽입되는 공간을 가진 파이프연결구가 완성된다.As such, when the inner member 100 and the outer member 200 are finished by welding, the pipe connector having a space into which the pipe is inserted is completed.

이하에서는, 도 2 내지 도 6을 참조하여 상기 파이프연결구의 형상을 상세하게 설명하도록 한다.Hereinafter, the shape of the pipe connector will be described in detail with reference to FIGS. 2 to 6.

도 2는 도 1에 나타낸 제조방법에 의하여 제조된 파이프연결구의 내적부재 및 외적부재가 분리된 상태를 나타낸 사시도이고, 도 3은 도 2에 나타낸 Ⅲ-Ⅲ선에 따른 단면도이고, 도 4는 도 2에 나타낸 파이프연결구의 내적부재 및 외적부재가 결합된 상태를 나타낸 사시도이고, 도 5는 도 4에 나타낸 파이프연결구의 정면도이고, 도 6은 도 4에 나타낸 Ⅳ-Ⅳ선에 따른 단면도이다.Figure 2 is a perspective view showing a state in which the inner member and the outer member of the pipe connector manufactured by the manufacturing method shown in Figure 1 separated, Figure 3 is a cross-sectional view taken along the line III-III shown in Figure 2, Figure 4 2 is a perspective view illustrating a state in which the inner member and the outer member of the pipe connector shown in FIG. 2 are coupled, FIG. 5 is a front view of the pipe connector shown in FIG. 4, and FIG. 6 is a cross-sectional view taken along line IV-IV shown in FIG. 4.

도 2 및 도 3에 도시된 바와 같이, 본 발명의 일 실시예에 따른 파이프연결 구의 제조방법에 의해 제조된 파이프연결구(10)는 내적부재(100) 및 외적부재(200)를 구비한다.2 and 3, the pipe connector 10 manufactured by the method for manufacturing a pipe connector according to an embodiment of the present invention includes an inner member 100 and an outer member 200.

상기 내적부재(100)의 내측에 형성된 홀(101)은 관로로 사용된다.The hole 101 formed inside the inner member 100 is used as a conduit.

아울러, 상기 단경부(201)는 상기 내적부재(100)보다 길이가 짧고, 상기 단경부(201)와 상기 내적부재(100)는 끝단이 일치하도록 접합된 것이 바람직하다.In addition, the short diameter portion 201 has a shorter length than the inner member 100, the short diameter portion 201 and the inner member 100 is preferably joined to match the ends.

상기 내적부재(100)와 상기 단경부(201)의 끝단이 일치하도록 접합된 경우 상기 단경부(201)가 상기 내적부재(100)보다 길이가 길면 상기 파이프가 삽입되는 공간이 형성되지 못하고, 파이프의 내측에 상기 내적부재(100)가 결합될 수 없다. 따라서 파이프와 파이프연결구간에 단단한 결합이 이뤄지기 힘들고, 누수의 염려가 있다는 문제가 있다.When the inner diameter member 100 and the short diameter portion 201 are joined so that the ends thereof coincide with each other, if the short diameter portion 201 is longer than the inner member 100, a space into which the pipe is inserted may not be formed. The inner member 100 can not be coupled to the inside. Therefore, there is a problem that the hard coupling between the pipe and the pipe connection is difficult to be achieved, there is a risk of leakage.

또한, 상기 내적부재(100)는 상기 단경부(201)와 접합되지 않은 외측 일부에 나선을 형성하고, 상기 외적부재(200)는 외측에 나선을 형성한 것이 바람직하다. In addition, it is preferable that the inner member 100 forms a spiral on a part of the outer side that is not joined to the short diameter portion 201, and the outer member 200 preferably forms a spiral on the outer side.

상기 내적부재(100)에 형성된 외측나선에 의해 파이프가 상기 내적부재(100)에 직접 결합되고, 상기 외적부재(200)에 형성된 외측나선에 의해 너트 등의 체결구를 사용하여 상기 파이프와 파이프연결구(10)를 더욱 단단하게 결합하므로 연결부위가 더욱 견고해지는 효과를 갖는다.The pipe is directly coupled to the inner member 100 by the outer spiral formed on the inner member 100, and the pipe and the pipe connector using a fastener such as a nut by the outer spiral formed on the outer member 200. Joining (10) more firmly has an effect that the connection portion is more robust.

상기 체결구는 어떤 특정한 형상을 가진 것에 한정되는 것은 아니고, 기타 본 발명의 목적에 따라 파이프연결구와 파이프의 결합을 단단하게 고정하여 주는 모든 체결구를 포함한다.The fastener is not limited to any particular shape, and includes all fasteners that firmly fix the coupling between the pipe connector and the pipe according to the object of the present invention.

도 4 내지 도 6에 도시된 바와 같이, 본 발명의 일실시예에 따른 파이프연결 구의 제조방법에 의해 제조된 파이프연결구(10)는 상기 내적부재(100)와 상기 장경부(203)의 사이에 파이프가 삽입될 수 있는 공간을 형성한다.4 to 6, the pipe connector 10 manufactured by the method for manufacturing a pipe connector according to an embodiment of the present invention is disposed between the inner member 100 and the long diameter portion 203. It forms a space into which the pipe can be inserted.

상기 내적부재(100)와 상기 단경부(201)가 접합된 경우 상기 내적부재(100)의 외경은 일정하지만, 상기 장경부(203)는 상기 단경부(201)보다 내경이 크기 때문에 상기 내적부재(100)와 상기 장경부(203)의 사이에는 소정의 공간이 형성된다. When the inner member 100 and the short diameter portion 201 are joined, the outer diameter of the inner member 100 is constant, but the inner diameter member 203 is larger than the short diameter portion 201 because the inner diameter is larger than the inner member A predetermined space is formed between the 100 and the long diameter portion 203.

상기 소정의 공간이 형성됨으로써, 파이프와 상기 파이프연결구(10)의 결합 시 상기 파이프가 내측으로는 상기 내적부재(100)가 삽입 되도록 하고, 외측으로는 상기 장경부(203)의 내측에 삽입될 수 있다.When the predetermined space is formed, the inner member 100 is inserted into the pipe when the pipe is coupled to the pipe connector 10, and the inside of the long diameter part 203 is inserted into the pipe. Can be.

따라서 연결되는 부위가 여러 층으로 둘러싸인 것과 같은 효과를 갖게 되어 더욱 견고하게 결합되고, 보다 확실하게 누수가 방지된다.Therefore, the area to be connected has the same effect as that surrounded by several layers, which is more firmly bonded and more reliably prevents leakage.

상기와 같이 정밀한 가공이 요구되는 부분도 쉽게 절삭 가공할 수 있으므로 내구성 및 내식성이 우수한 스테인리스강을 소재로 사용한 파이프연결구(10)를 제조할 수 있다.As described above, even a part requiring precise machining can be easily cut, so that the pipe connector 10 made of stainless steel having excellent durability and corrosion resistance can be manufactured.

따라서 상기 내적부재(100) 및 상기 외적부재(200)는 스테인리스강을 소재로 사용한 것이 바람직하다.Therefore, the inner member 100 and the outer member 200 is preferably used as a stainless steel material.

스테인리스강은 내구성 및 내식성이 우수하여 파이프연결구의 소재로서 적합한 물질이며, 다만 내구성이 높기 때문에 절삭 가공하기 어려운 좁은 공간을 정밀하게 가공하기 어려운 단점이 있으나, 상기한 바와 같이 내적부재(100)와 외적부재(200)를 별도로 가공하여 이를 접합시키는 방법으로 제조하게 된다면 상기 내적부재(100)와 외적부재(200)의 사이에 형성된 파이프가 삽입되는 공간도 손쉽게 가 공할 수 있다.Stainless steel is a material that is suitable as a material for pipe connectors due to its excellent durability and corrosion resistance, but has a disadvantage in that it is difficult to precisely process narrow spaces that are difficult to cut because of its high durability, but as described above, If the member 200 is manufactured by separately processing and bonding the same, the space in which the pipe formed between the inner member 100 and the outer member 200 is inserted can be easily processed.

다만, 스테인리스강을 소재로 사용한 것에 한정되는 것은 아니고, 기타 본 발명의 목적에 비추어 보아 파이프연결구의 소재로서 적합한 다른 물질이 포함될 수 있다.However, the material is not limited to the one using stainless steel, and other materials suitable as materials for pipe connectors may be included in view of the object of the present invention.

따라서 상기한 바와 같이 본 발명의 파이프연결구의 제조방법에 의하여 제조한 파이프연결구는 일단이 어댑터 본체의 일측에 형성된 홀에 내부가 연통되도록 연결되어 내구성 및 내식성이 우수한 수도밸브용 어댑터로 사용될 수 있다. Therefore, the pipe connector manufactured by the pipe connector manufacturing method of the present invention as described above may be used as an adapter for a water valve having one end connected to communicate with the inside of the hole formed on one side of the adapter body with excellent durability and corrosion resistance.

다만, 이 경우에도 수도밸브용 어댑터로 사용되는 경우뿐만 아니라 기타 본 발명의 목적에 따라 견고하게 파이프를 연결하는 다른 종류의 어댑터로 사용되는 경우를 포함할 수 있다.However, in this case, as well as the case used as an adapter for water valves, it may include the case used as other types of adapters for firmly connecting the pipe according to the purpose of the present invention.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

본 발명에 의하면, 기존에 사용되어 오던 황동을 사용하지 않아도 내구성 및 내식성이 우수한 스테인리스강을 소재로 사용한 파이프연결구를 제조할 수 있다. According to the present invention, it is possible to manufacture a pipe connector made of stainless steel having excellent durability and corrosion resistance without using brass that has been used in the past.

또한, 스테인리스강을 소재로 사용하는 경우 정밀하게 절삭가공하기 어려운 파이프가 삽입되는 공간도 쉽고 정밀하게 가공할 수 있다는 장점이 있다.In addition, in the case of using stainless steel as a material, there is an advantage that the space into which the pipe is difficult to be precisely cut can be easily and precisely processed.

Claims (4)

a)관형의 내적부재를 준비하는 단계;a) preparing a tubular inner member; b)상기 내적부재보다 길이가 짧고 상기 내적부재의 외경보다 작은 내경을 갖는 관형의 단경부와, 상기 내적부재의 외경보다 큰 내경을 갖는 관형의 장경부를 포함하며, 상기 단경부와 장경부는 내부가 연통되도록 일체로 연결된 외적부재를 준비하는 단계;b) a tubular short diameter portion having a shorter length than the inner member and having an inner diameter smaller than the outer diameter of the inner member, and a tubular long diameter portion having an inner diameter larger than the outer diameter of the inner member, wherein the short diameter portion and the long diameter portion are internal. Preparing an external member connected integrally to communicate with each other; c)상기 외적부재를 가열한 후 상기 내적부재를 상기 단경부 내측으로 삽입하는 단계;c) inserting the inner member into the short diameter part after heating the outer member; d)상기 단경부 내측과 상기 내적부재의 외측 일부가 접합되도록 상기 외적부재를 냉각하는 단계; 및d) cooling the outer member such that an inner portion of the short diameter portion and an outer portion of the inner member are joined; And e)상기 단경부와 상기 내적부재가 접합된 부분을 용접하는 단계를 포함하고,e) welding a part of the short diameter portion and the inner member joined thereto; 상기 단경부와 상기 내적부재는 끝단이 일치하도록 접합된 것을 특징으로 하는 파이프 연결구의 제조방법.The short diameter portion and the inner member is a method of manufacturing a pipe connector, characterized in that the ends are joined to match. 삭제delete 제 1항에 있어서, The method of claim 1, 상기 내적부재는 상기 단경부와 접합되지 않은 외측 일부에 나선을 형성하고,The inner member forms a spiral on an outer portion not joined to the short diameter portion, 상기 외적부재는 외측에 나선을 형성한 것을 특징으로 하는 파이프연결구의 제조방법.The outer member is a method of manufacturing a pipe connector, characterized in that the spiral formed on the outside. 제 1항 또는 제 3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 내적부재 및 상기 외적부재는 스테인리스강을 소재로 사용한 것을 특징으로 하는 파이프 연결구의 제조방법.The inner member and the outer member is a method of manufacturing a pipe connector, characterized in that using stainless steel as a material.
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KR101511703B1 (en) 2013-12-26 2015-04-14 주식회사 포스코 Method for manufacruring muti-shell cask

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