KR920004644Y1 - Steel pipe connector - Google Patents

Steel pipe connector Download PDF

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Publication number
KR920004644Y1
KR920004644Y1 KR2019900009047U KR900009047U KR920004644Y1 KR 920004644 Y1 KR920004644 Y1 KR 920004644Y1 KR 2019900009047 U KR2019900009047 U KR 2019900009047U KR 900009047 U KR900009047 U KR 900009047U KR 920004644 Y1 KR920004644 Y1 KR 920004644Y1
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South Korea
Prior art keywords
connector
metal tube
tube
pipe
present
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KR2019900009047U
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Korean (ko)
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KR920000955U (en
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최정윤
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최정윤
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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
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/04—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection
    • F16L19/05—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection with a rigid pressure ring between the screwed member and the exterior of the flared pipe end
    • F16L19/055—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection with a rigid pressure ring between the screwed member and the exterior of the flared pipe end the pressure ring being rotatably connected to the threaded member

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

내용 없음.No content.

Description

금속관 연결구Metal pipe connector

제 1 도는 본 고안에 의한 연결구의 요부절개사시도.1 is a perspective view of the main portion of the connector according to the present invention.

제 2 도는 본 고안의 사용상태를 예시한 일부 절개 정면도.Figure 2 is a partial cutaway front view illustrating a use state of the present invention.

제 3 도는 확관전의 상태를 도시한 일부 절개 정면도.3 is a partial cutaway front view showing the state of expansion.

제 4 도는 확관후의 상태를 도시한 일부 절개 정면도.4 is a partial cutaway front view showing a state after expansion.

제 5 도는 본 고안의 각기 다른 몇가지 실시예시 단면도.5 is a cross-sectional view of several different embodiments of the present invention.

제 6 도는 종전 기술에 의한 관연결구.6 is a tube connector according to the prior art.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 금속관체 2 : 나사부1: Metal tube 2: Screw part

4 : 연결구(나사소켓) 5 : 고정부(확관밀착고정부)4: Connector (Screw Socket) 5: Fixing part (Expand Close Tightening)

6 : 연결부재6: connecting member

본 고안은 금속관 연결구 더욱 상세히는 강도가 높거나 두께가 얇은 금속관체의 단부에 나사가 있는 소켓을 삽입하여 확관(pipe expading)하여 밀착시킨후 별도의 연결구와 일체화시키므로써, 나사가공이 곤란한 관체를 긴밀하게 연결시킬 수 있도록 한 금속관 연결구에 관한 것이다.The present invention inserts a socket with a screw into the end of a metal tube connector, more specifically, a high strength or thin metal pipe pipe, and closes it by integrating it with a separate connector. It relates to a metal tube connector that can be closely connected.

여기서, 가장 일반적인 관체이음용 연결부재는 니플, 앵글, 티이, 크로스, 유니온등의 관이음쇠, 리듀우서따위가 사용되고 있는데, 관체의 접속에는 반드시 이들 연결부재의 나사면에 대응하는 나사부를 가공해야만 한다.Here, the most common pipe joint connecting members are nipples, angles, tees, crosses, union fittings such as unions, reducers, and the like, and the connection of the pipe bodies must be processed with threads corresponding to the threaded surfaces of these connecting members.

그러나 관체의 재질이 높은 강도를 갖고 있거나, 두께가 얇은 관체의 경우에는 일반적인 연결방법으로는 연결이 매우 곤란하다.However, in the case of a tubular material having a high strength or a thin tube, it is very difficult to connect by a general connection method.

왜냐하면, 재질이 강도가 높을 경우 디이스토크(die stock)등을 이용한 나사가공 자체가 불가능하고 설사 그것이 가능하다고 해도 나사의 가공에 많은 시간을 필요로 하기 때문에 높은 가공비와 생산성 저하를 초래함은 물론 수율은 낮아지게 되는 문제점을 표출하게 되고, 관체의 두께가 얇은 경우에는 나사부의 골지름과 내경과의 두께가 너무 얇아지게 되어 압력에 견디기 어렵고, 나사 자체를 가공하지 못하게 된다.If the material is high in strength, it is impossible to process the thread by using die stock, and even if it is possible, it takes a lot of time to process the screw. When the thickness of the tube is thin, the thickness of the corrugated thread and the inner diameter becomes too thin, so that it is difficult to withstand the pressure and the screw itself cannot be processed.

상기한 문제점을 해결하기 위한 수단으로서, 본원 도면에 도시된 제 6 도 고안인 일본국 실개소 57-71878호(82.5.1공개)가 안출된바 있는 상기 고안 역시 금속관(1)을 접속본체(15)와 연결함에 있어 금속간(1) 외주면에 나사 가공을 하지 아니하고, 별도의 체결너트(16)를 사용하여 상기 접속본체(15)의 나사부(17)와 체결토록하였는바 이때 상기 체결너트(16)를 지지하기 위한 수단으로서 금속관(1)의 일부분에 돌출된 주름부(18)나 혹은 단턱을 형성케 되는데 관체 중앙부분에 팽출시켜 돌출시키는 가공이 상당히 어려우며, 또한 관체의 동심원 유지가 어렵다는 문제점과 관체의 체결후에는 상기 주름부와 체결너트(16)의 접촉면을 통해 누수가 발생하므로써 이를 해결키 위해 별도의 패킹(19)의 구성이 필요하게 되어 많은 부품이 소요된다는 것이 상기 고안의 결점이었다.As a means for solving the above-mentioned problems, the above-described design, in which Japanese Patent Application Laid-Open No. 57-71878 (82.5.1 Disclosure), which is the sixth design shown in the drawing of the present invention, has been devised, also connects the metal pipe 1 to the main body ( 15) in connection with the threaded portion 17 of the connection main body 15 using a separate fastening nut 16, without screwing the outer circumferential surface between the metal (1), the fastening nut ( 16) As a means for supporting the formation of the corrugated portion 18 or a stepped protrusion on a portion of the metal tube (1), the process of expanding and protruding by expanding to the center of the tube is very difficult, and also difficult to maintain concentric circles of the tube After the fastening of the tube and the leak occurs through the contact surface of the pleated portion and the fastening nut 16 is required to configure a separate packing 19 to solve this problem, it takes a lot of parts It was.

본 고안은 이러한 문제점을 고려하여 별도 부품을 최소화하여 접속하고자하는 양쪽 관체를 직접 연결코자한 것으로, 관체의 단부 외면에 연결구를 삽입하고, 관체를 확관시켜 연결구와 관체를 일체화시키므로써, 나사부의 가공이 어려운 관체의 연결마저도 용이한 금속관 연결구를 제공함에 그 목적이 있다.The present invention is intended to directly connect both pipes to be connected by minimizing the separate parts in consideration of these problems, insert the connector to the outer surface of the end of the pipe, expand the pipe to integrate the connector and the pipe, machining of the screw portion It is an object of the present invention to provide a metal tube connector that can easily connect even this difficult tube.

물론 본원 고안에서 사용된 관을 확관시키는 기술적 사상은 일반화된 개념이기는 하나, 본원은 이를 청구코저 하는 것이 아니라, 관열결구라는 특정의 목적에 부합되는 구조를 갖도록 하는데에 상기 기술을 한 과정으로서 이용한데 불과한바, 본원 고안은 관체연결구에 있어서, 종전 기술의 문제점을 해결하기 위한 신규한 기술적구성을 제공함을 목적으로 하는 것이다.Of course, the technical idea of expanding the tube used in the present invention is a generalized concept, but the present application does not claim it, but uses the above technique as a process to have a structure that meets the specific purpose of the pipe joint. Only one bar, the subject innovation is to provide a novel technical configuration for solving the problems of the prior art in the tubular connector.

이하에서 상기 목적을 달성한 본 고안의 바람직한 실시예를 첨부도면에 의거 상세히 설명한다.Hereinafter, a preferred embodiment of the present invention to achieve the above object will be described in detail based on the accompanying drawings.

본 고안은 제 1 도에서와 같이 금속관체(1)의 단부에 그 외경보다 약간 큰 내경을 갖고, 외면에 나사부(2)및 조임부(3)가 형성된 연결구(4)를 상기 금속관체 단부외주면에 끼운후, 금속관체(1) 단부의 고정부(5) 내부로 공지의 확관기(expander)를 삽입하여 확관시키므로써, 연결구(4)와 급속관체(1)가 밀착고정되도록 하여서 된것이다.According to the present invention, as shown in FIG. 1, a connector 4 having an inner diameter slightly larger than its outer diameter at the end of the metal tube 1, and having a screw portion 2 and a fastening portion 3 formed thereon, has an outer peripheral surface of the metal tube end portion. After inserting into the pipe, the expansion pipe is inserted into the fixing part 5 at the end of the metal pipe 1, and the pipe 4 is fastened so that the connector 4 and the rapid pipe 1 are tightly fixed.

이와 같은 구성의 본 고안은 제작시에 제 3 도에서와 같이 소정의 외경을 가진 금속관체(1)의 단부에 그 외경보다 큰 내경의 연결구(4)를 끼운뒤 금속관체(1)의 내경을 확관시키게 된다. 이때, 연결구(4)의 외면에는 나사부(2)와 조임부(3)를 형성시킨 것을 사용하나, 연결구(4) 외면 전체가 나사로 형성될 수도 있으며, 연결구(4)내면은 진원도가 좋은 축방향 일직선 형상으로 하여 관체(1)를 확관하였을때 기밀성 있는 밀착력을 얻도록 하였으나, 일종 큰 고압이나 기체에 견디는 기밀성을 얻고저 할때에는 내면에 원주 방향으로 홈을 파고 탄성체인 링을 끼워서 확관할수도 있으며, 진동이나 충격시 연결구(4)와 관체(1)가 탈착되는 것을 방지하기 위해 연결구(4)내면에 원주방향으로 홈을 파고 확관하므로서 관체(1)의 고정부(5)를 凸凹형상으로 밀착시키는 방법이나, 고정부(5) 전단부위가 연결구(4)의 전단면에 약간 확개된 상태로 돌출되는 확관방법등으로 실시될 수 있음은 물론이다.According to the present invention having the above configuration, as shown in FIG. 3, the inner diameter of the metal tube 1 is inserted after inserting the connector 4 having an inner diameter larger than the outer diameter at the end of the metal tube 1 having the predetermined outer diameter. Expanded. At this time, the outer surface of the connector 4 is used to form the screw portion 2 and the tightening portion 3, but the entire outer surface of the connector 4 may be formed with a screw, the inner surface of the connector 4 has a good roundness in the axial direction When the pipe body (1) is in a straight line shape, airtight adhesion is obtained.However, when obtaining a high pressure or gastight airtightness, it is possible to dig a groove in the circumferential direction and insert an elastic ring to expand the airtightness. In order to prevent the connector 4 and the tube 1 from being detached during vibration or shock, the fixing part 5 of the tube 1 is closely contacted in a 凸凹 shape by digging and expanding the groove in the circumferential direction on the inner surface of the connector 4. Of course, the front end of the fixing portion (5) may be implemented by an expansion method such as protruding in a state slightly expanded on the front end surface of the connector (4).

금속관체(1)의 고정부(5) 확관방법은 유압, 공압, 기계식 회전확관기등을 이용한 확관방법등이 사용될 수 있으며, 확관방법을 편의에 따라 이외의 방법으로도 다양하게 실시될 수 있음은 물론이다.The expansion part of the fixing part 5 of the metal pipe 1 may be expanded by using a hydraulic, pneumatic or mechanical rotary expander. The expansion method may be variously performed by other methods according to convenience. Of course.

제 4 도에서는 고정부(5)가 확관되어 그 외경과 연결구(4)의 내경이 밀착된 상태를 도시하였다.4 shows a state in which the fixing part 5 is expanded so that the outer diameter and the inner diameter of the connector 4 are in close contact with each other.

이와같이 구성된 본 고안은 사용시에 제 2 도에서와 같이 연결부재(6)의 나사부(7)에 금속관체(1)의 외면에 고정된 연결구(4)의 나사부(2)를 체결하여 줌으로써, 소정 길이로 연장 설치할 수 있게 된다.The present invention configured as described above has a predetermined length by fastening the screw portion 2 of the connector 4 fixed to the outer surface of the metal tube 1 to the screw portion 7 of the connecting member 6 as shown in FIG. 2. It is possible to install extension.

여기에서 연결부재(6)는 금속관체(1)를 직선상으로 연결할 수 있는 스트레이트형 연결관의 경우에 대한 설명이었으나, 엘보우, 리듀우서 등 그밖의 연결구에도 두루 사용될 수 있음은 물론이다. 또한 연결구(4)를 관통하여 반대편으로 노출된 금속관체(1)의 끝을 외측으로 접어서 걸림턱(8)을 형성하는 것, 연결구(4)의 내면 한곳에 환상 패킹좌(9)를 형성하여 탄성패킹(10)을 끼운 상태에서 금속관체(1)를 연결하는 것, 연결구(4)의 내면에 하나 이상의 환상홈(11)을 형성하고, 금속관체(1)의 당해 부분이 이곳으로 밀려 들어가 형성되는 걸림턱(12)이 걸려지게 하는 것, 연결구(4)의 외면을 전부 나사부로 형성하는 것 등의 반경 실시도 가능하지만, 상기의 어떠한 변경실시도 모두 본 고안의 기술적 범주에 속하는 것이다.Here, the connection member 6 was a description of the case of the straight connector that can connect the metal tube 1 in a straight line, it can be used throughout the other connectors such as elbows, reducers, of course. In addition, the end of the metal tube (1) exposed through the connector 4 to the opposite side to the outside to form a locking jaw (8), to form an annular packing seat (9) on one inner surface of the connector (4) elastic Connecting the metal tube 1 with the packing 10 inserted therein, forming one or more annular grooves 11 on the inner surface of the connector 4, and a corresponding portion of the metal tube 1 being pushed in to form It is also possible to implement a radius such as the locking jaw 12 is to be caught, the outer surface of the connector 4 is formed entirely by the threaded portion, any of the above modifications are within the technical scope of the present invention.

이와 같은 구성의 본 고안은 고나체에 나사부를 가공하려면 관체의 두께가 두꺼워야 하지만 연결구(4)를 사용하면 관체의 두께가 얇아도 되므로 경제적이고, 강도라 커서 나사부 가공이 어려운 관체인 경우 본 고안은 생산성, 수율의 향상 및 작업시간이 단축이 되는 등 여러가지 잇점이 있는 매우 유용한 고안이다.The present invention of such a configuration is required to be thick in the tube to process the threaded portion in the high body, but when using the connector (4), because the thickness of the tube may be thin, economical, the strength is large, the thread is difficult to process the present invention Is a very useful design with several advantages, including improved productivity, improved yields and reduced work time.

Claims (1)

연결부제(6)와 금속관체(1)를 나사접속시키는 구성에 있어서, 상기 금속관체(1) 일단부 외주면에 그 외경(d1)보다 약간 큰 내경(d2)을 기지며, 외면으로는 나사부(2)와 조임부(3)가 형성된 연결구(4)를 끼운 후 상기 금속관체(1) 내부로 공지의 확관기(expander)를 삽입하여 고정부(5)를 확관시켜 연결구(4)의 내경부(13)와 밀착 고정한후, 별도의 연결부재(6)와 나사로 체결시킨 금속관 연결구.In the constitution which connects the connection part 6 and the metal tube 1, an inner diameter d 2 slightly larger than the outer diameter d 1 is provided on the outer peripheral surface of one end of the metal tube 1, After inserting the connector 4 formed with the screw part 2 and the tightening part 3, insert a known expander into the metal tube 1 to expand the fixing part 5 to expand the fixing part 5. Metal tube connector fastened tightly with the inner diameter part 13, and then screwed with a separate connecting member (6).
KR2019900009047U 1990-06-26 1990-06-26 Steel pipe connector KR920004644Y1 (en)

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KR2019900009047U KR920004644Y1 (en) 1990-06-26 1990-06-26 Steel pipe connector

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Application Number Priority Date Filing Date Title
KR2019900009047U KR920004644Y1 (en) 1990-06-26 1990-06-26 Steel pipe connector

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KR920000955U KR920000955U (en) 1992-01-28
KR920004644Y1 true KR920004644Y1 (en) 1992-07-10

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Application Number Title Priority Date Filing Date
KR2019900009047U KR920004644Y1 (en) 1990-06-26 1990-06-26 Steel pipe connector

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KR (1) KR920004644Y1 (en)

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Publication number Publication date
KR920000955U (en) 1992-01-28

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