KR20050120245A - Structure for connecting flexible pipe - Google Patents

Structure for connecting flexible pipe Download PDF

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Publication number
KR20050120245A
KR20050120245A KR1020040045527A KR20040045527A KR20050120245A KR 20050120245 A KR20050120245 A KR 20050120245A KR 1020040045527 A KR1020040045527 A KR 1020040045527A KR 20040045527 A KR20040045527 A KR 20040045527A KR 20050120245 A KR20050120245 A KR 20050120245A
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KR
South Korea
Prior art keywords
corrugated pipe
tightening nut
locking ring
corrugated
socket
Prior art date
Application number
KR1020040045527A
Other languages
Korean (ko)
Inventor
최진림
Original Assignee
동아금속주름관(주)
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Publication date
Application filed by 동아금속주름관(주) filed Critical 동아금속주름관(주)
Priority to KR1020040045527A priority Critical patent/KR20050120245A/en
Priority to PCT/KR2005/001842 priority patent/WO2005124217A1/en
Priority to US11/629,817 priority patent/US20080036207A1/en
Publication of KR20050120245A publication Critical patent/KR20050120245A/en

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Classifications

    • 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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
    • F16L33/223—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L33/224—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts a clamping ring being arranged between the threaded member and the connecting member
    • 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
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
    • F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
    • 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
    • F16L19/08—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 with metal rings which bite into the wall of the pipe
    • F16L19/10—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 with metal rings which bite into the wall of the pipe the profile of the ring being altered
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)

Abstract

본 발명에 따른 주름관 연결 구조(Metal joint)는, 주름관과; 상기 주름관 외측에 삽입된 조임 너트와; 상기 주름관의 골부분에 삽입된 상태에서 외측으로 돌출되어 상기 조임 너트가 상기 주름관에서 빠지지 않도록 하는 걸림링과; 상기 조임 너트에 의해 결합되도록 수나사가 형성되고, 상기 조임 너트의 체결력에 의해 상기 걸림링에 밀착되면서 상기 주름관의 끝단부를 상기 걸림링과의 사이에서 압착 변형시켜 실링부를 형성하는 소켓관으로 구성됨으로써, 주름관의 연결 구조가 간편하게 이루어지는 동시에 주름관을 원하는 길이만큼 절단하여 용이하게 연결할 수 있으며, 연결 부분에 별도의 가공이 필요 없으므로 연결 비용도 절감될 수 있는 효과가 있다.Corrugated pipe connection structure (Metal joint) according to the present invention, the corrugated pipe; A tightening nut inserted outside the corrugated pipe; A locking ring which protrudes outward from the corrugated pipe so as to prevent the tightening nut from falling out of the corrugated pipe; The male screw is formed to be coupled by the tightening nut, and is composed of a socket tube that forms a sealing part by pressing and deforming the end of the corrugated pipe between the locking ring while being in close contact with the locking ring by the tightening force of the tightening nut, At the same time the connection structure of the corrugated pipe can be made easily, it can be easily connected by cutting the corrugated pipe to the desired length, and there is no effect of the separate processing of the connecting portion, so that the connection cost can be reduced.

Description

주름관 연결 구조{Structure for connecting flexible pipe} Structure for connecting flexible pipes

본 발명은 주름관 연결 구조에 관한 것으로서, 특히 조임 너트의 체결력만으로 주름관과 소켓관을 용이하게 연결할 수 있도록 하는 주름관 연결 구조에 관한 것이다.The present invention relates to a corrugated pipe connecting structure, and more particularly to a corrugated pipe connecting structure that can be easily connected to the corrugated pipe and the socket tube only by the tightening force of the tightening nut.

도 1은 종래 주름관 연결 구조가 도시된 분해 사시도이고, 도 2는 종래 주름관 연결 구조가 도시된 일부 절개 상태도이다.1 is an exploded perspective view showing a conventional corrugated pipe connecting structure, and FIG. 2 is a partially cutaway state diagram showing a conventional corrugated pipe connecting structure.

종래 메탈 조인트(Metal Joint) 타입의 주름관 연결 구조는, 도 1과 도 2에 도시된 바와 같이, 주름관(10)과, 상기 주름관(10)에 맞대어져 연결되는 소켓관(30)과, 상기 주름관(10)과 소켓관(30)을 연결하는 조임 너트(20)로 구성된다.Conventional metal joint type corrugated pipe connection structure, as shown in Figures 1 and 2, the corrugated pipe 10, the socket pipe 30 which is connected to the corrugated pipe 10, and the corrugated pipe It consists of a fastening nut 20 which connects 10 and the socket tube 30.

상기 주름관(10)은 상기 소켓관(30)과 연결되는 부분에 비주름부(12)가 형성되고, 이 비주름부(12)의 끝단에는 상기 조임 너트(20) 내부에 걸리도록 된 플레어(flare) 타입 확장부(14)가 형성된다.The corrugated pipe 10 has a non-wrinkle portion 12 is formed in a portion connected to the socket tube 30, the flare is caught on the inside of the tightening nut 20 at the end of the non-wrinkle portion (12) flare type extension 14 is formed.

상기 소켓관(30)은 앞쪽에 상기 조임 너트(20)와 체결되는 수나사(32)가 형성되고, 선단부에는 상기 주름관(10)의 확장부(14)와 맞대어지도록 끝단으로 갈수록 외경이 점차 작아지는 테이퍼부(34)가 형성된다.The socket tube 30 has a male screw 32 that is fastened to the tightening nut 20 at the front side, and the outer diameter of the socket tube 30 gradually decreases toward the end to face the expansion portion 14 of the corrugated pipe 10. Tapered portion 34 is formed.

상기 조임 너트(20)는 상기 소켓관(30)의 내부에 수나사(32)와 체결되는 암나사(22)가 형성되고, 일측에는 상기 주름관(10)의 확장부(14)가 걸리도록 경사진 면으로 이루어진 걸림부(24)가 형성된다.The tightening nut 20 has an internal thread 22 fastened to the male screw 32 in the socket tube 30, and one side of the tightening nut 20 is inclined so that the extension part 14 of the corrugated pipe 10 is caught. The engaging portion 24 is formed.

상기와 같은 종래 주름관 연결 구조는, 주름관(10)의 비주름부(12)에 조임 너트(20)를 끼운 다음, 조임 너트(20)가 빠지지 않도록 확장부(14)를 플레어 타입으로 가공한 상태로 하나의 세트를 구성하게 된다.In the conventional corrugated pipe connection structure as described above, the tightening nut 20 is inserted into the non-wrinkle portion 12 of the corrugated pipe 10, and then the extension portion 14 is processed into a flare type so that the tightening nut 20 does not fall out. Will constitute one set.

이와 같이 상기 주름관(10)에 상기 조임 너트(20)가 조립된 상태에서 소켓관(30)을 연결하기 위해서는 상기 소켓관(30)을 조임 너트(20)와 맞댄 후, 조임 너트(20)를 회전시키게 되면, 소켓관(30)의 테이퍼부가 주름관(10)의 확장부(14)에 압착되면서 서로 연결된다.Thus, in order to connect the socket tube 30 in the state in which the tightening nut 20 is assembled to the corrugated pipe 10, the socket tube 30 is aligned with the tightening nut 20, and then the tightening nut 20 is connected. When rotated, the tapered portions of the socket tube 30 are connected to each other while being pressed against the expansion portion 14 of the corrugated tube 10.

그러나, 상기한 바와 같은 종래 주름관 연결 구조는, 상기와 같이 주름관(10)과 소켓관(30)을 연결하기 위해서는, 상기 주름관(10)에 비주름부(12)를 형성하여 조임 너트(20)를 끼운 다음, 하나의 세트로 조립해야 하기 때문에 미리 가공된 주름관(10)을 준비하여야 하고, 필요에 따라 주름관(10)의 길이를 다르게 설정하고 싶어도 주름관(10)의 연결 부분을 별도로 가공하여야 하므로 길이 조절이 쉽지 않은 문제점이 있다.However, in the conventional corrugated pipe connection structure as described above, in order to connect the corrugated pipe 10 and the socket pipe 30 as described above, by forming the non-wrinkle portion 12 in the corrugated pipe 10, the tightening nut 20 After inserting, the pre-processed corrugated pipe 10 should be prepared because it needs to be assembled into one set, and the connection part of the corrugated pipe 10 must be separately processed even if you want to set different lengths of the corrugated pipe 10 as necessary. There is a problem that the length adjustment is not easy.

또한, 상기한 종래 메탈 조인트 타입의 주름관 연결 구조는, 조임 너트(20)의 체결력에 의해 주름관(10)의 확장부(14)와 소켓관(30)의 테이퍼부가 밀착되어 밀폐되면서 연결되는 구조를 갖게 되나, 상기 조임 너트(20)의 걸림부(24), 주름관(10)의 확장부(14), 소켓관(30)의 테이퍼부(34)의 밀착 구조가 정밀하게 일치해야만 충분히 신뢰성 있는 밀폐 구조를 확보하게 되므로 상기 밀착 부분들의 사전 가공이 정밀해야 되고, 이와 같은 정밀 가공에 따라 제조 비용이 많이 소요되는 문제점이 있다.In addition, the conventional metal joint type corrugated pipe connection structure, the expansion portion 14 of the corrugated pipe 10 and the tapered portion of the socket pipe 30 by the fastening force of the tightening nut 20 is in close contact with the structure that is connected. However, the sealing structure 24 of the tightening nut 20, the expansion part 14 of the corrugated pipe 10, and the tapered part 34 of the socket pipe 30 must be closely matched to each other to ensure a sufficiently reliable sealing. Since the structure is secured, the pre-processing of the close parts must be precise, and there is a problem in that manufacturing cost is high according to such precision processing.

본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 주름관에 걸림링을 이용하여 조임 너트를 조립하고, 조임 너트의 체결력을 이용하여 소켓관이 주름관의 끝단부 산부분에 밀착되면서 플레어 타입으로 확장된 실링부를 형성하여 밀봉 구조를 확보하도록 구성함으로써 주름관의 연결 구조가 간편한 동시에 원하는 길이만큼 설정하여 용이하게 연결할 수 있으며, 연결 비용도 절감될 수 있는 주름관 연결 구조를 제공하는 데 목적이 있다. The present invention has been made in order to solve the above problems, assembling a tightening nut using a locking ring on the corrugated pipe, expands into a flare type while the socket tube is in close contact with the end of the corrugated pipe using the tightening force of the tightening nut. It is an object to provide a corrugated pipe connecting structure that can be easily connected by setting the desired length at the same time as the connection structure of the corrugated pipe is easy to form by forming a sealed portion to ensure a sealing structure.

상기한 과제를 실현하기 위한 본 발명에 따른 주름관 연결 구조는, 주름관과; 상기 주름관 외측에 삽입된 조임 너트와; 상기 주름관의 골부분에 삽입된 상태에서 외측으로 돌출되어 상기 조임 너트가 상기 주름관에서 빠지지 않도록 하는 걸림링과; 상기 조임 너트에 의해 조립되도록 수나사가 형성되고, 상기 조임 너트의 체결력에 의해 상기 걸림링에 밀착되면서 상기 주름관의 끝단부를 상기 걸림링과의 사이에서 압착 변형시켜 실링부를 형성하는 소켓관을 포함한 것을 특징으로 한다.Corrugated pipe connection structure according to the present invention for realizing the above object is a corrugated pipe; A tightening nut inserted outside the corrugated pipe; A locking ring which protrudes outward from the corrugated pipe so as to prevent the tightening nut from falling out of the corrugated pipe; A male screw is formed to be assembled by the tightening nut, and the socket tube forms a sealing part by pressing and deforming the end portion of the corrugated pipe with the locking ring while being in close contact with the locking ring by the fastening force of the tightening nut. It is done.

이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 3은 본 발명에 따른 주름관 연결 구조가 도시된 분해 사시도이고, 도 4와 도 5는 본 발명에 따른 주름관 연결 구조가 도시된 일부 절개 상태도로서, 도 4는 소켓 결합 전의 상태도, 도 5는 소켓 결합 후의 상태도이다.Figure 3 is an exploded perspective view showing a corrugated pipe connecting structure according to the present invention, Figure 4 and Figure 5 is a partial cutaway state diagram showing a corrugated pipe connecting structure according to the present invention, Figure 4 is a state diagram before the socket coupling, Figure 5 State diagram after socket coupling.

본 발명에 따른 주름관 연결 구조는, 도 3에 도시된 바와 같이, 관의 외측면에 연속된 주름이 형성된 주름관(50)과, 상기 주름관(50) 외측에 삽입된 조임 너트(60)와, 상기 주름관(50)의 골부분(52)에 삽입된 상태에서 외측으로 돌출되어 상기 조임 너트(60)가 상기 주름관(50)에서 빠지지 않도록 하는 걸림링(70)과, 상기 조임 너트(60)의 체결력에 의해 상기 걸림링(70)에 밀착되면서 상기 주름관(50)의 끝단부(54)를 상기 걸림링(70)과의 사이에서 플레어(flare) 타입으로 압착 변형시키는 소켓관(80)으로 구성된다.Corrugated pipe connection structure according to the present invention, as shown in Figure 3, the corrugated pipe 50 is a continuous corrugation formed on the outer surface of the tube, the tightening nut 60 inserted into the corrugated pipe 50 outside, and Fastening force of the locking ring 70 and the tightening nut 60 to protrude outward in the state inserted into the valley portion 52 of the corrugated pipe 50 so that the tightening nut 60 does not fall out of the corrugated pipe 50. By being in close contact with the locking ring 70 by the end of the corrugated pipe 50 is composed of a socket pipe 80 for pressing and deforming in a flare (flare) type between the locking ring (70). .

이와 같은 본 발명의 메탈 조인트 타입(Metal Joint type)의 주름관 연결 구조를 이루는 주요 구성 요소에 대해 설명하면 다음과 같다.Referring to the main components constituting the corrugated pipe connection structure of the metal joint type (Metal Joint type) of the present invention as follows.

먼저, 상기 주름관(50)은 도 1에 도시된 종래 주름관(10)과 다르게 별도의 비주름부가 형성되지 아니하고, 연속된 주름이 형성된 관으로 형성된다. 따라서, 주름 구조에 의해 골부분과 산부분들이 연속 형성되고, 상기 골부분(52)에 상기 걸림링(70)이 삽입되어 장착된다. First, the corrugated pipe 50 is different from the conventional corrugated pipe 10 shown in Figure 1 is not formed of a separate non-wrinkle portion, it is formed of a continuous corrugated pipe is formed. Therefore, the valley part and the mountain part are continuously formed by the corrugation structure, and the locking ring 70 is inserted into the valley part 52 to be mounted.

상기 주름관(50)은 그 끝단부(54)가 상기 걸림링(70)과 상기 소켓관(80) 사이에서 밀착될 때 도 5에 도시된 바와 같이 산부분(53)을 중심으로 압축된 2 겹 구조의 플레어 타입으로 확관된 실링부(55)로 변형된다.The corrugated pipe 50 is a two-ply compressed around the mountain portion 53 as shown in Figure 5 when the end portion 54 is in close contact between the engaging ring 70 and the socket tube 80 The sealing portion 55 is expanded into a flare type of structure.

다음, 상기 조임 너트(60)는 전후 방향으로 관통되게 형성되는 바, 일측면의 내경은 상기 주름관(50)의 산부분(53)이 이루는 외경보다 크게 형성되어 상기 주름관(50) 외측에 끼워질 수 있도록 형성되고, 그 안쪽에 상기 걸림링(70)이 걸리도록 걸림부(64)가 형성된다. 그리고, 도 4에 도시된 바와 같이 걸림부(64)가 형성된 내측 둘레면에는 상기 걸림링(70)의 외주면 부분이 안착되는 안착부(66)가 형성된다.Next, the fastening nut 60 is formed to penetrate in the front and rear direction, the inner diameter of one side is formed to be larger than the outer diameter formed by the peak portion 53 of the corrugated pipe 50 to be fitted outside the corrugated pipe 50. It is formed so that, the locking portion 64 is formed so that the locking ring 70 is caught in the inside. In addition, as shown in FIG. 4, the inner circumferential surface on which the locking portion 64 is formed is provided with a mounting portion 66 on which an outer circumferential surface portion of the locking ring 70 is seated.

상기 조임 너트(60)는 상기 안착부(66)로부터 타측으로는 상기 소켓관(80)이 체결되도록 암나사(62)가 형성된다.The tightening nut 60 is formed with a female screw 62 so that the socket tube 80 is fastened to the other side from the seating portion 66.

다음, 상기 걸림링(70)은 스테인리스 스틸 또는 황동 합금 등의 금속재로 형성되는 것이 바람직하고, 상기 주름관(50)의 둘레에 용이하게 결합되도록 한 개 또는 두 개 이상인 복수 개로 나누어져 구성된다. 본 실시예의 도면에서는 도 3에 도시된 바와 같이 두 개로 나누어져 주름관(50)의 양쪽에서 골부분(52)에 결합될 수 있는 구성을 예시하고 있다. Next, the locking ring 70 is preferably formed of a metal material such as stainless steel or brass alloy, it is configured to be divided into a plurality of one or two or more so as to be easily coupled to the circumference of the corrugated pipe (50). In the drawings of this embodiment, as shown in Figure 3 is divided into two illustrates a configuration that can be coupled to the bone portion 52 on both sides of the corrugated pipe (50).

이와 같은 상기 걸림링(70)은 상기 조임 너트(60)가 주름관(50)에서 빠지지 않도록 하는 동시에 상기 소켓관(80)이 밀착될 때 상기 주름관(50)의 끝단부(54)의 산부분(53)이 플레어 타입의 실링부(55)로 변경되도록 지지하는 역할을 하게 되는 바, 도 4에 도시된 확대된 단면도에서와 같이 바깥쪽은 상대적으로 두껍고, 안쪽은 'V'자형 단면 구조를 갖는다. The locking ring 70 as described above prevents the fastening nut 60 from coming out of the corrugated pipe 50, and at the same time, the mountain portion of the end portion 54 of the end portion 54 of the corrugated pipe 50 when the socket pipe 80 is in close contact with the socket nut 80. 53) serves to support the flare-type sealing portion 55 to be changed, the outer side is relatively thick, as shown in the enlarged cross-sectional view shown in Figure 4, the inner side has a 'V' shaped cross-sectional structure. .

특히 상기 걸림링(70)에서 상기 소켓관(80)이 밀착되는 면은 상기 주름관(50)의 끝단부(54)가 플레어 타입의 실링부(55)로 변형될 수 있도록 하는 경사진 모양의 지지면(71)으로 형성된다.In particular, the surface in which the socket tube 80 is in close contact with the locking ring 70 is inclined support so that the end portion 54 of the corrugated pipe 50 can be deformed into a flare type sealing portion 55. It is formed with the surface 71.

다음, 상기 소켓관(80)은 뒤쪽에 육각 머리부(81)와 수나사(83)가 형성되고, 앞쪽에 상기 조임 너트(60)와 체결되는 수나사(82)가 형성되며, 선단부에는 상기 주름관(50)의 플레어 타입의 실링부(55)에 밀착되도록 끝단으로 갈수록 외경이 점차 작아지는 경사면 구조의 압착부(85)가 형성된다.Next, the socket tube 80 has a hexagonal head 81 and a male screw 83 formed at the rear side, and a male screw 82 fastened to the tightening nut 60 at the front side thereof, and the corrugated pipe ( The pressing portion 85 of the inclined surface structure in which the outer diameter gradually decreases toward the end to be in close contact with the flare-type sealing portion 55 of 50) is formed.

특히 상기 소켓관(80)은 상기 압착부(85)의 선단부에 직관 모양의 삽입부(84)가 형성되고, 이 삽입부(84)의 끝단부(84a)가 테이퍼지게 형성되는 바, 이 삽입부(84)는 상기 주름관(50)의 끝단부(54) 내부로 삽입되어 상기 주름관(50)의 끝단부(54)가 플레어 타입 실링부(55)로 변형될 때 끝단부(54)의 절단면이 주름관 중심축 측으로 내향 절곡되고, 상기 실링부(55)가 중심축에 대하여 중심을 유지하기 위하여 테이퍼상의 원통 모양으로 형성되어 외측으로 확장되도록 하는 역할을 하게 된다.In particular, the socket tube 80 has an insertion portion 84 having a straight tube shape at the tip end of the crimping portion 85, and the end portion 84a of the insertion portion 84 is formed to be tapered. The portion 84 is inserted into the end portion 54 of the corrugated pipe 50 so that the cut surface of the end portion 54 when the end portion 54 of the corrugated pipe 50 is deformed into a flare type sealing portion 55. The corrugated pipe is bent inward toward the central axis side, and the sealing portion 55 is formed in a tapered cylindrical shape to maintain the center with respect to the central axis so as to extend outward.

상기와 같이 구성되는 본 발명에 따른 주름관(50) 연결 구조의 작용을 설명하면 다음과 같다.Referring to the operation of the corrugated pipe 50 connection structure according to the present invention configured as described above are as follows.

먼저, 주름관(50) 연결을 위한 조립 순서를 설명하면, 주름관(50)의 한쪽 끝부분에 조임 너트(60)를 삽입한 다음, 한 개 또는 두 개가 한 쌍으로 된 걸림링(70)을 주름관(50)의 끝부분에 위치하는 골부분(52)에 밀착 삽입한 상태에서, 상기 조임 너트(60)를 주름관(50) 끝부분으로 당겨서 이동시키면 상기 걸림링(70)에 상기 조임 너트(60)의 걸림부(64)가 걸려서 주름관(50)으로부터 조임 너트(60)가 빠지지 않게 된다.First, explaining the assembly sequence for connecting the corrugated pipe 50, insert the tightening nut 60 to one end of the corrugated pipe 50, and then one or two pair of the engaging ring 70 is corrugated pipe When the fastening nut 60 is pulled and moved to the end of the corrugated pipe 50 in a state of being closely inserted into the bone portion 52 positioned at the end of the 50, the fastening nut 60 is attached to the locking ring 70. ), The locking portion 64 is caught so that the tightening nut 60 does not come out of the corrugated pipe 50.

이때, 상기 걸림링(70)도 도 4에서와 같이 상기 조임 너트(60)의 안쪽에 위치하게 되므로 상기 주름관(50)의 골부분(52)에 그대로 끼워진 상태를 유지하게 된다.At this time, since the locking ring 70 is also located inside the tightening nut 60 as shown in FIG. 4, the locking ring 70 is maintained as it is in the valley portion 52 of the corrugated pipe 50.

이후, 주름관(50)을 연결하기 위해 소켓관(80)을 조임 너트(60)의 다른 한쪽에 맞대고 조임 너트(60)를 회전시키면, 소켓관(80)이 주름관(50)에 가까워진 다음, 도 5에서와 같이 조임 너트(60)의 체결력에 의해 소켓관(80)이 걸림링(70) 쪽에 밀착되면서 주름관(50)의 끝단부(54)에 플레어 타입 실링부(55)가 형성되도록 압착 변형시키게 된다.Thereafter, when the socket tube 80 is rotated against the other side of the tightening nut 60 and the tightening nut 60 is rotated to connect the corrugated pipe 50, the socket tube 80 approaches the corrugated pipe 50, and then, FIG. Compression deformation such that the flare type sealing part 55 is formed at the end portion 54 of the corrugated pipe 50 while the socket pipe 80 is closely attached to the locking ring 70 by the fastening force of the tightening nut 60 as shown in FIG. 5. Let's go.

즉, 상기 소켓관(80)이 상기 주름관(50)에 접촉될 때 먼저 소켓관(80)의 삽입부(84)가 주름관(50) 내부에 삽입되고, 이렇게 삽입부(84)가 주름관(50) 내부에 삽입된 상태에서 상기 소켓관(80)이 더욱 걸림링(70) 쪽으로 밀착하게 되면, 주름관(50)의 끝단부(54)의 산부분(53)이 주름관(50)의 중심축 측으로 절곡되면서 상기 소켓관(80)의 압착면(85)과 걸림링(70)의 경사면을 갖는 지지면(71) 사이에서 2겹 구조로 압착되면서 플레어 타입 실링부(55)가 형성된다.That is, when the socket tube 80 is in contact with the corrugated tube 50, the insertion portion 84 of the socket tube 80 is first inserted into the corrugated tube 50, and thus the insertion portion 84 is the corrugated tube 50. When the socket tube 80 is in close contact with the locking ring 70 in the state of being inserted therein, the peak portion 53 of the end portion 54 of the corrugated pipe 50 is moved toward the central axis of the corrugated pipe 50. While being bent, the flare type sealing part 55 is formed while being pressed in a two-ply structure between the pressing surface 85 of the socket tube 80 and the supporting surface 71 having the inclined surface of the locking ring 70.

여기서 상기 주름관(50)의 플레어 타입 실링부(55)는 상기 걸림링(70)의 경사면을 갖는 지지면(71)과 걸림링(70)과 같은 각도의 경사면을 갖는 소켓관(80)의 압착면(85)이 밀착되어 실링 기능을 담당하게 된다.Here, the flare type sealing portion 55 of the corrugated pipe 50 is crimped to the support surface 71 having the inclined surface of the locking ring 70 and the socket tube 80 having the inclined surface at the same angle as the locking ring 70. The surface 85 is in close contact with the sealing function.

상기와 같이 주름관(50) 연결 구조를 만들게 되면, 주름관(50)을 원하는 길이로 자르고, 주름관(50)에 조임 너트(60)와 걸림링(70)을 조립한 다음, 상기 소켓관(80)에 조임 너트(60)를 체결하게 되면, 미리 주름관(50) 연결부분을 가공하지 않기 때문에 별도의 장비가 필요치 않고, 간편하고도 용이하게 주름관(50)을 연결할 수 있게 된다.When the corrugated pipe 50 is connected as described above, the corrugated pipe 50 is cut to a desired length, the tightening nut 60 and the locking ring 70 are assembled to the corrugated pipe 50, and then the socket pipe 80 When the tightening nut 60 is fastened to, the corrugated pipe 50 does not need to be processed in advance so that no additional equipment is required, and the corrugated pipe 50 can be easily and easily connected.

또한, 상기 주름관(50)의 플레어 타입 실링부(55)가 2겹 구조로 형성되어 상기 걸림링(70)의 지지면(71)과 소켓관(80)의 압착면(85) 사이에 밀착되므로 보다 신뢰성 있는 밀폐 구조를 확보할 수 있게 된다.In addition, since the flare type sealing part 55 of the corrugated pipe 50 is formed in a two-ply structure, it is closely contacted between the support surface 71 of the locking ring 70 and the pressing surface 85 of the socket tube 80. It is possible to secure a more reliable sealing structure.

상기와 같이 구성되고 작용되는 본 발명에 따른 주름관 연결 구조는, 조임 너트가 걸림링을 통해 주름관에 조립되고, 조임 너트의 체결력에 의해 주름관의 끝단부가 2겹으로 내향 절곡되면서 플레어 타입의 실링구조를 확보하기 때문에 주름관의 연결 구조가 간편하게 이루어지는 동시에 주름관을 원하는 길이만큼 절단하여 용이하게 연결할 수 있으며, 연결 부분에 별도의 가공이 필요 없으므로 연결 비용도 절감되고, 금속 부재로 실링 구조를 확보하게 되므로 충분한 내열성을 갖는 이점이 있다. Corrugated pipe connection structure according to the present invention configured and acted as described above, the tightening nut is assembled to the corrugated pipe through the locking ring, while the end of the corrugated pipe is bent inward in two layers by the tightening force of the tightening nut flare-type sealing structure Since the connection structure of the corrugated pipe is made simple, it can be easily connected by cutting the corrugated pipe to the desired length, and the connection cost is also reduced because no additional processing is required for the connecting part, and the sealing structure is secured by the metal member. There is an advantage to having.

도 1은 종래 주름관 연결 구조가 도시된 분해 사시도,1 is an exploded perspective view showing a conventional corrugated pipe connection structure,

도 2는 종래 주름관 연결 구조가 도시된 일부 절개 상태도,Figure 2 is a partial cutaway state diagram showing a conventional corrugated pipe connection structure,

도 3은 본 발명에 따른 주름관 연결 구조가 도시된 분해 사시도,3 is an exploded perspective view showing a corrugated pipe connecting structure according to the present invention;

도 4와 도 5는 본 발명에 따른 주름관 연결 구조가 도시된 일부 절개 상태도로서, 도 4는 소켓 결합 전의 상태도, 도 5는 소켓 결합 후의 상태도이다.4 and 5 are some cutaway state diagram showing a corrugated pipe connection structure according to the invention, Figure 4 is a state diagram before the socket coupling, Figure 5 is a state diagram after the socket coupling.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

50 : 주름관 52 : 골부분 50: corrugated pipe 52: bone portion

53 : 산부분 54 : 끝단부 53: mountain portion 54: end portion

55 : 플레어 타입 실링부 60 : 조임 너트 55 flare type sealing part 60 tightening nut

62 : 암나사 64 : 걸림부 62: female thread 64: engaging portion

66 : 안착부 70 : 걸림링 66: seating portion 70: locking ring

71 : 지지면 80 : 소켓관 71: support surface 80: socket tube

82 : 수나사 84 : 삽입부 82: male thread 84: insertion portion

85 : 압착면85: crimp surface

Claims (4)

주름관과; 상기 주름관 외측에 삽입된 조임 너트와; 상기 주름관의 골부분에 삽입된 상태에서 외측으로 돌출되어 상기 조임 너트가 상기 주름관에서 빠지지 않도록 하는 걸림링과; 상기 조임 너트에 의해 조립되도록 수나사가 형성되고, 상기 조임 너트의 체결력에 의해 상기 걸림링에 밀착되면서 상기 주름관의 끝단부를 상기 걸림링과의 사이에서 압착 변형시켜 실링부를 형성하는 소켓관을 포함한 것을 특징으로 하는 주름관 연결 구조.Corrugated tube; A tightening nut inserted outside the corrugated pipe; A locking ring which protrudes outward from the corrugated pipe so as to prevent the tightening nut from falling out of the corrugated pipe; A male screw is formed to be assembled by the tightening nut, and the socket tube forms a sealing part by pressing and deforming the end portion of the corrugated pipe with the locking ring while being in close contact with the locking ring by the fastening force of the tightening nut. Corrugated pipe connection structure. 제 1 항에 있어서,The method of claim 1, 상기 걸림링은 금속재로 형성되고, 상기 주름관에 용이하게 삽입되어 결합되도록 복수개로 나누어져 구성된 것을 특징으로 하는 주름관 연결 구조.The hook ring is formed of a metal material, the corrugated pipe connecting structure, characterized in that divided into a plurality configured to be easily inserted and coupled to the corrugated pipe. 제 1 항에 있어서,The method of claim 1, 상기 걸림링과 상기 소켓관은 상호 밀착되어 상기 주름관을 변형시키는 부분이 경사면 구조로 형성된 것을 특징으로 하는 주름관 연결 구조.The hooking ring and the socket tube are in close contact with each other, the portion of the corrugated pipe connecting structure, characterized in that formed in the inclined surface structure to deform the corrugated pipe. 제 1 항 내지 제 3 항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 소켓관은 그 선단부에 상기 주름관의 내부로 삽입되는 삽입부를 갖는 것을 특징으로 하는 주름관 연결 구조.And the socket tube has an insertion portion inserted into an interior of the corrugated tube at a distal end thereof.
KR1020040045527A 2004-06-18 2004-06-18 Structure for connecting flexible pipe KR20050120245A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020040045527A KR20050120245A (en) 2004-06-18 2004-06-18 Structure for connecting flexible pipe
PCT/KR2005/001842 WO2005124217A1 (en) 2004-06-18 2005-06-16 Connector of flexible pipe
US11/629,817 US20080036207A1 (en) 2004-06-18 2005-06-16 Connector of Flexible Pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040045527A KR20050120245A (en) 2004-06-18 2004-06-18 Structure for connecting flexible pipe

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011126251A2 (en) * 2010-04-05 2011-10-13 Dong-A Flexible Metal Tubes Co., Ltd Connection structure of corrugated pipe
KR200487169Y1 (en) * 2017-10-13 2018-08-17 (주)케이에스피 Pipe assembly with high-durability robust to thermal fatigue

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011126251A2 (en) * 2010-04-05 2011-10-13 Dong-A Flexible Metal Tubes Co., Ltd Connection structure of corrugated pipe
WO2011126251A3 (en) * 2010-04-05 2011-12-15 Dong-A Flexible Metal Tubes Co., Ltd Connection structure of corrugated pipe
DE112011101195T5 (en) 2010-04-05 2013-01-17 Dong-A Flexible Metal Tubes Co., Ltd. Connection structure of a corrugated pipe
US9568131B2 (en) 2010-04-05 2017-02-14 Dong-A Flexible Metal Tubes Co., Ltd. Connection structure of corrugated pipe
KR200487169Y1 (en) * 2017-10-13 2018-08-17 (주)케이에스피 Pipe assembly with high-durability robust to thermal fatigue

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