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KR101386752B1 - Expansion joint pipe - Google Patents

Expansion joint pipe Download PDF

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Publication number
KR101386752B1
KR101386752B1 KR1020120128487A KR20120128487A KR101386752B1 KR 101386752 B1 KR101386752 B1 KR 101386752B1 KR 1020120128487 A KR1020120128487 A KR 1020120128487A KR 20120128487 A KR20120128487 A KR 20120128487A KR 101386752 B1 KR101386752 B1 KR 101386752B1
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South Korea
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circumferential surface
taper
screw portion
pipe
outer circumferential
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Korean (ko)
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심영조
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심영조
주식회사 지오플랜텍
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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
    • F16L19/043—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 additional sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

본 발명은 가스이송용 주름신축관에 관한 것으로서, 양단에 형성된 제1,2끼움관(11)(12)과, 제1,2끼움관(11)(12) 사이의 중앙에 형성된 돌출단턱(13)을 가지는 연결관(10); 제1끼움관(11)에 끼어진 제1주름관(P1)의 제1결합단(P1')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제1테이퍼(21)와, 제1테이퍼(21)를 절개하는 다수의 제1절개홈(22)을 가지는 제1압입부재(20); 제2끼움관(12)에 끼어진 제2주름관(P2)의 제2결합단(P2')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제2테이퍼(31)와, 제2테이퍼(31)를 절개하는 다수의 제2절개홈(32)을 가지는 제2압입부재(30); 제1압입부재(20)가 내장되게 결합되는 것으로서, 내주면에 제1테이퍼(21)에 대향되는 역경사면이 형성된 제1역테이퍼(41)와, 외주면에 형성된 제1나사부(42)를 가지는 제1바디(40); 제2압입부재(30)가 내장되게 결합되는 것으로서, 내주면에 제2테이퍼(31)에 대향되는 역경사면이 형성된 제2역테이퍼(51)와, 외주면에 형성된 제2나사부(52)를 가지는 제2바디(50); 및 내주면 일측에 상기 제1나사부(42)에 나사결합되는 제3나사부(63)가 형성되고, 내주면 타측에 제2나사부(52)에 나사결합되는 제4나사부(64)가 형성된 조인트(60);를 포함하는 것을 특징으로 한다. The present invention relates to a corrugated expansion pipe for gas transfer, protruding step 13 formed in the center between the first and second fitting pipes 11 and 12 formed at both ends and the first and second fitting pipes 11 and 12. Connector (10) having; The first taper 21 and the first taper 21 which are coupled to the outer circumferential surface of the first coupling end P1 ′ of the first corrugated pipe P1 sandwiched by the first fitting pipe 11 and have an inclined surface on one side thereof. A first pressurizing member 20 having a plurality of first cutting grooves 22 for cutting the cutting force; It is coupled to the outer circumferential surface of the second coupling end (P2 ') of the second corrugated pipe (P2) sandwiched in the second fitting pipe 12, the second taper 31 and the second taper (31) having an inclined surface formed on one side A second press-fit member 30 having a plurality of second cut-out grooves 32 for cutting); The first press-fit member 20 is coupled to be built-in, having a first reverse taper 41 formed on the inner circumferential surface opposite to the first taper 21, and a first screw portion 42 formed on the outer circumferential surface 1 body 40; The second press-fitting member 30 is coupled to be built-in, and has a second reverse taper 51 formed on the inner circumferential surface opposite to the second taper 31, and a second screw portion 52 formed on the outer circumferential surface. Two-body 50; And a third screw portion 63 screwed to the first screw portion 42 on one side of the inner circumferential surface, and a fourth screw portion 64 screwed to the second screw portion 52 on the other side of the inner circumferential surface. It characterized by including.

Figure R1020120128487
Figure R1020120128487

Description

가스이송용 주름신축관{Expansion joint pipe}Corrugated expansion pipe for gas transfer {Expansion joint pipe}

본 발명은 가스이송용 주름신축관에 관한 것으로서, 더욱 상세하게는 진동이 많은 선박이나 플랜트에서 가스를 이송시키기 위한 가스이송용 주름신축관에 관한 것이다. The present invention relates to a corrugated expansion tube for gas transfer, and more particularly to a corrugated expansion tube for gas transfer for transporting gas in a ship or plant with a lot of vibration.

신축관이란 배관과 다른 배관을 연결함과 동시에 신축이 가능하므로 배관으로 전달되는 진동이나 충격을 흡수하는 장치로서, 기본적으로 주름관과 다른 주름관이 용접에 의하여 연결되는 구조를 가진다. 이러한 신축관은 다양한 분야에 적용되고 있는데, 특히 진동이 많이 인가되는 선박이나 플랜트에서 배관을 연결하는 목적으로 주로 사용된다. A flexible pipe is a device that absorbs vibrations or shocks delivered to a pipe because it can be stretched at the same time as connecting a pipe and another pipe, and basically has a structure in which a corrugated pipe and another corrugated pipe are connected by welding. Such expansion pipes are applied to various fields, and are mainly used for connecting pipes in ships or plants where vibration is applied a lot.

이때 이송되는 대상이 고압가스인 경우, 주름관과 다른 주름관을 연결할 때 조그만 틈새라도 발생하면 안되고, 또한 연결 부위의 강도가 다른 부위에 비하여 약해서도 안된다. In this case, when the object to be transported is a high-pressure gas, even a small gap must not occur when connecting the corrugated pipe and the other corrugated pipe, and the strength of the connecting part must not be weak compared to other parts.

그런데, 주름관은 얇은 철판을 관형태로 말은 후 주름을 형성한 것이기 때문에, 주름관과 다른 주름관을 용접에 의하여 연결하기가 매우 까다로웠다. 특히 용접시 많은 열이 발생하여 주의하지 않으면 구멍이 발생하는 등의 문제가 있었다.However, since the corrugated pipe is formed by wrinkling a thin iron plate in the form of a tube, it is very difficult to connect the corrugated pipe and the other corrugated pipe by welding. In particular, a large amount of heat is generated during welding, and if there is a problem, holes are generated.

또한 용접시 고열이 발생하므로, 용접부위에서 변성이 일어나 시간이 지남에 따라 부식이 발생하였다. 이 경우 용접부위의 내구성이 약해져, 가스의 압력에 의하여 파손되는 경우가 있었다. In addition, since high heat is generated during welding, corrosion occurs due to degeneration at the welded portion. In this case, the durability of the welded portion is weakened and may be broken by the pressure of the gas.

본 발명은 상기와 같은 문제점을 해결하기 위하여 창출된 것으로서, 제1주름관과 제2주름관을 용접을 않고 연결할 수 있어, 용접과정에서 발생되는 연결부위의 손상이나 내구성 저하를 방지할 수 있는 가스이송용 주름신축관을 제공하는 것을 목적으로 한다.The present invention was created in order to solve the above problems, the first wrinkle pipe and the second wrinkle pipe can be connected without welding, gas transfer wrinkles that can prevent damage to the connection or degradation of durability generated during the welding process The purpose is to provide new construction.

본 발명의 다른 목적은, 제1주름관과 제2주름관이 어떠한 경우에도 분리되지 않도록 견고하게 연결된 가스이송용 주름신축관을 제공하는 것이다. Another object of the present invention is to provide a gas-contraction corrugated pipe that is firmly connected so that the first and second wrinkle pipes are not separated in any case.

상기와 같은 목적을 달성하기 위하여, 본 발명에 따른 가스이송용 주름신축관은, 양단에 형성된 제1,2끼움관(11)(12)과, 상기 제1,2끼움관(11)(12) 사이의 중앙에 형성된 돌출단턱(13)을 가지는 연결관(10); 상기 제1끼움관(11)에 끼어진 제1주름관(P1)의 제1결합단(P1')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제1테이퍼(21)와, 상기 제1테이퍼(21)를 절개하는 다수의 제1절개홈(22)을 가지는 제1압입부재(20); 상기 제2끼움관(12)에 끼어진 제2주름관(P2)의 제2결합단(P2')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제2테이퍼(31)와, 상기 제2테이퍼(31)를 절개하는 다수의 제2절개홈(32)을 가지는 제2압입부재(30); 상기 제1압입부재(20)가 내장되게 결합되는 것으로서, 내주면에 상기 제1테이퍼(21)에 대향되는 역경사면이 형성된 제1역테이퍼(41)와, 외주면에 형성된 제1나사부(42)를 가지는 제1바디(40); 상기 제2압입부재(30)가 내장되게 결합되는 것으로서, 내주면에 상기 제2테이퍼(31)에 대향되는 역경사면이 형성된 제2역테이퍼(51)와, 외주면에 형성된 제2나사부(52)를 가지는 제2바디(50); 및 내주면 일측에 상기 제1나사부(42)에 나사결합되는 제3나사부(63)가 형성되고, 상기 내주면 타측에 상기 제2나사부(52)에 나사결합되는 제4나사부(64)가 형성된 조인트(60);를 포함하고, 상기 연결관(10)은, 상기 제1,2끼움관(11)(12) 각각의 외주면에 형성되어 상기 돌출단턱(13)과 연결된 것으로서, 상기 돌출단턱(13)으로 갈수록 외경이 넓어지는 경사면이 형성된 제1,2경사단(14)(15)을 포함하는 것을 특징으로 한다.In order to achieve the above object, the gas transfer corrugated expansion tube according to the present invention, the first and second fitting pipes (11) (12) and the first and second fitting pipes (11, 12) formed at both ends A connecting pipe (10) having a protruding step (13) formed in the center of the gap; It is coupled to the outer circumferential surface of the first coupling end (P1 ') of the first corrugated pipe (P1) sandwiched in the first fitting pipe 11, the first taper 21 having an inclined surface on one side, and the first taper A first press member 20 having a plurality of first cutting grooves 22 for cutting 21; The second taper 31, which is coupled to the outer circumferential surface of the second coupling end (P2 ') of the second corrugated pipe (P2) sandwiched in the second fitting pipe 12, the inclined surface on one side, and the second taper A second press-fit member 30 having a plurality of second cutting grooves 32 for cutting 31; The first press-fit member 20 is coupled to be built-in, the first reverse taper 41 formed on the inner peripheral surface opposite to the first taper 21 and the first screw portion 42 formed on the outer peripheral surface Branch having a first body 40; The second press-fitting member 30 is coupled to be built-in, the second reverse taper 51 formed on the inner circumferential surface opposite to the second taper 31 and the second screw portion 52 formed on the outer circumferential surface A second body 50 having a branch; And a third screw portion 63 screwed to the first screw portion 42 on one side of the inner circumferential surface, and a fourth screw portion 64 screwed to the second screw portion 52 on the other side of the inner circumferential surface. The connecting pipe 10 is formed on the outer circumferential surface of each of the first and second fitting pipes 11 and 12 and connected to the protruding step 13, and the protruding step 13. It characterized in that it comprises a first, second inclined end 14, 15 is formed with an inclined surface widening the outer diameter toward.

삭제delete

본 발명에 있어서, 상기 연결관(10)은, 상기 제1끼움관(11)의 외주면에 설치되는 제1오링(16)과, 상기 제2끼움관(12)의 외주면에 설치되는 제2오링(17)을 더 포함한다.In the present invention, the connecting pipe 10, the first O-ring 16 is provided on the outer peripheral surface of the first fitting pipe 11 and the second O-ring provided on the outer peripheral surface of the second fitting pipe 12 (17) is further included.

본 발명에 있어서, 상기 제1압입부재(20)는, 상기 제1테이퍼(21)의 내주면에 형성된 뾰족한 다수의 제1핀엠보(23)를 더 포함하고; 상기 제2압입부재(30)는, 상기 제2테이퍼(31)의 내주면에 형성된 뾰족한 다수의 제2핀엠보(33)를 더 포함한다.In the present invention, the first pressing member (20) further includes a plurality of pointed first pin embosses (23) formed on the inner circumferential surface of the first taper (21); The second press-fit member 30 further includes a plurality of pointed second pin embosses 33 formed on an inner circumferential surface of the second taper 31.

본 발명에 있어서, 상기 제1바디(40)에 있어 상기 제1나사부(42)를 제외한 외주면에 육각형태의 렌치결합부(43)가 형성되어 있고; 상기 제2바디(50)에 있어 상기 제2나사부(52)를 제외한 외주면에 육각형태의 렌치결합부(53)가 형성되어 있으며; 상기 조인트(60)의 외주면은 육각형태의 렌치결합부(65)가 형성된다.In the present invention, in the first body (40), a hexagonal wrench coupling portion (43) is formed on the outer circumferential surface except for the first screw portion (42); Hexagonal wrench coupling portions 53 are formed on the outer circumferential surface of the second body 50 except for the second screw portion 52; The outer circumferential surface of the joint 60 has a hexagonal wrench coupling portion 65 is formed.

본 발명에 따르면, 제1주름관과 제2주름관을 용접을 않고 연결할 수 있어, 용접과정에서 발생되는 연결부위의 손상이나 내구성 저하를 방지할 수 있고, 용접과정에서 고열에 의한 파손이나 용접부위의 부식등을 방지할 수 있다.According to the present invention, it is possible to connect the first corrugated pipe and the second corrugated pipe without welding, thereby preventing damage to the connection or degradation of durability generated during the welding process, and damage due to high heat or corrosion of the welded site during the welding process. Etc. can be prevented.

또한 제1,2결합관의 단부는 제1,2경사단에 의하여 확관되고, 제1,2핀엠보가 제1,2결합관의 표면을 파고 들어가므로, 제1,2결합단은 제1,2압입부재서서 빠져나오지 않게 견고하게 고정됨과 동시에, 가스가 새어나오지 못하게 밀폐력을 향상시킨다. 특히 제1,2오링이 제1,2결합관의 내주면에 밀착되므로, 더더욱 밀폐력을 향상시킬 수 있고, 이에 따라 고압의 가스가 이송도중에 새어나오는 것을 방지할 수 있는 것이다. In addition, the ends of the first and second coupling pipes are expanded by the first and second inclined ends, and since the first and second pin embosses penetrate the surface of the first and second coupling pipes, the first and second coupling ends are arranged in the first and second coupling pipes. 2, It is firmly fixed not to escape from the press-fitting member, and the sealing force is improved to prevent the gas from leaking out. In particular, since the first and second O-rings are in close contact with the inner circumferential surface of the first and second coupling pipes, the sealing force can be further improved, thereby preventing the high-pressure gas from leaking out during the transfer.

도 1은 본 발명에 따른 가스이송용 주름신축관의 사시도,
도 2는 도 1의 연결관을 발췌하여 도시한 반단면도,
도 3은 도 1의 제1,2압입부재를 발췌하여 도시한 반단면도,
도 4는 도 1의 제1,2바디를 발췌하여 도시한 반단면도,
도 5는 도 1의 조인트를 발췌하여 도시한 반단면도,
도 6은 도 1의 가스이송용 주름신축관의 조립과정을 설명하기 위한 도면,
도 7은 도 1의 가스이송용 주름신축관이 조립된 것을 설명하기 위한 도면. 1 is a perspective view of a corrugated expansion tube for gas transport according to the present invention,
Figure 2 is a half cross-sectional view taken from the connector of Figure 1,
3 is a half sectional view showing an extract of the first and second press-fit members of FIG.
4 is a half sectional view showing an extract of the first and second bodies of FIG.
5 is a half sectional view showing an extract of the joint of FIG.
6 is a view for explaining the assembly process of the corrugated expansion tube for gas transport of FIG.
Figure 7 is a view for explaining that the corrugated expansion tube for gas transport of Figure 1 is assembled.

이하, 본 발명에 따른 가스이송용 주름신축관을 첨부된 도면들을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, a corrugated expansion pipe for gas transport according to the present invention will be described in detail.

도 1은 본 발명에 따른 가스이송용 주름신축관의 사시도이다. 1 is a perspective view of a corrugated expansion tube for gas transfer according to the present invention.

본 발명에 따른 가스이송용 주름신축관은, 얇은 철판을 관형태로 말은 후 주름을 형성한 제1,2주름관(P1)(P2)과, 그 주름관(P1)(P2)을 연결하는 커플러(100)로 이루어지며, 가스나 증기등을 이송시키기 위한 것이다. The corrugated expansion pipe for gas transfer according to the present invention is a coupler for connecting the first and second corrugated pipe (P1) (P2) and the corrugated pipe (P1) (P2) formed by forming a corrugation after rolling a thin iron plate in the form of a tube ( It consists of 100) and is for transporting gas or steam.

제1,2주름관(P1)(P2)은 스테인레스 재질로 되어 있으며 신축이 가능하도록 여러 주름을 가진다. 이러한 제1,2주름관(P1)(P2)은 커플러(100)에 결합되기 위한 제1,2결합단(P1')(P2')를 가진다. The first and second corrugated pipes P1 and P2 are made of stainless steel and have various corrugations to allow expansion and contraction. The first and second wrinkle pipe (P1) (P2) has a first, second coupling end (P1 ') (P2') for coupling to the coupler (100).

커플러(100)는 용접을 이용하지 않고 제1,2결합단(P1')(P2')을 상호 연결하기 위한 것으로서, 상호 유기적으로 결합되는 연결관(10), 제1,2압입부재(20)(30), 제1,2바디(40)(50), 조인트(60)를 포함한다. The coupler 100 is for interconnecting the first and second coupling ends P1 ′ and P2 ′ without using welding, and the coupling tube 10 and the first and second press-fit members 20 are organically coupled to each other. ) 30, the first and second bodies 40, 50, and the joint 60.

도 2는 도 1의 연결관을 발췌하여 도시한 반단면도이다. FIG. 2 is a half cross-sectional view of the connector of FIG. 1.

도시된 바와 같이, 연결관(10)은, 양단에 형성된 제1,2끼움관(11)(12)과, 제1,2끼움관(11)(12) 사이의 중앙에 형성된 돌출단턱(13)과, 제1,2끼움관(11)(12) 각각의 외주면에 형성되어 돌출단턱(13)과 연결된 것으로서 돌출단턱(13)으로 갈수록 외경이 넓어지는 경사면이 형성된 제1,2경사단(14)(15)과, 제1끼움관(11)의 외주면에 설치되는 제1오링(16)과, 제2끼움관(12)의 외주면에 설치되는 제2오링(17)을 포함한다.As shown in the drawing, the connecting pipe 10 includes a protruding step 13 formed at the center between the first and second fitting pipes 11 and 12 formed at both ends and the first and second fitting pipes 11 and 12. And first and second inclined ends formed on the outer circumferential surface of each of the first and second fitting pipes 11 and 12 and connected to the protruding step 13, and having an inclined surface having a wider outer diameter toward the protruding step 13. 14) (15), a first O-ring (16) provided on the outer circumferential surface of the first fitting pipe (11), and a second O-ring (17) provided on the outer circumferential surface of the second fitting pipe (12).

상기한 제1,2결합단(P1')(P2')의 내경은 제1,2끼움관(11)(12)의 외경보다 약간 크며, 제1,2끼움관(11)(12)에 끼어질 때 제1,2경사단(14)(15)이 시작되는 부분까지 끼어진다. The inner diameters of the first and second coupling ends P1 'and P2' are slightly larger than the outer diameters of the first and second fitting pipes 11 and 12, and the first and second fitting pipes 11 and 12 When sandwiched, the first and second inclined ends 14 and 15 are sandwiched to the beginning.

제1,2경사단(14)(15)은 돌출단턱(13) 측으로 갈수록 외경이 넓어지기 때문에, 후술하는 바와 같이 제1,2경사단(14)(15)을 타고 돌출단턱(13) 측으로 밀리는 제1,2결합단(P1')(P2')의 단부(P1")(P2")를 확관한다. Since the outer diameters of the first and second inclined ends 14 and 15 increase toward the protruding step 13, the first and second inclined ends 14 and 15 take the first and second inclined ends 14 and 15 to the protruding step 13. Milly extends the ends P1 "and P2" of the first and second coupling ends P1 'and P2'.

제1,2오링(16)(17)은 실리콘 고무나 합성고무와 같이 탄성체로 이루어지며, 제1,2끼움관(11)(12)의 표면에도 돌출되어 있다. 제1,2오링(16)(17)은 제1,2결합단(P1')(P2')의 내주면과 밀착되어 가스가 새지 않도록 밀폐력을 향상시킨다. The first and second o-rings 16 and 17 are made of an elastic body, such as silicone rubber or synthetic rubber, and protrude from the surfaces of the first and second fitting pipes 11 and 12. The first and second O-rings 16 and 17 are in close contact with the inner circumferential surfaces of the first and second coupling ends P1 ′ and P2 ′ to improve the sealing force so that the gas does not leak.

도 3은 도 1의 제1,2압입부재를 발췌하여 도시한 반단면도이다. 3 is a half sectional view showing an extract of the first and second press-fit members of FIG.

도시된 바와 같이, 제1압입부재(20)는, 제1끼움관(11)에 끼어진 제1결합단(P1')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제1테이퍼(21)와, 제1테이퍼(21)를 절개하는 다수의 제1절개홈(22)과, 제1테이퍼(21)의 내주면에 형성된 뾰족한 다수의 제1핀엠보(23)를 포함한다.As shown, the first press-fit member 20 is coupled to the outer circumferential surface of the first coupling end P1 ′ fitted to the first fitting pipe 11, and the first taper 21 having the inclined surface formed on one side thereof. And a plurality of first cutting grooves 22 for cutting the first taper 21 and a plurality of pointed first pin embosses 23 formed on the inner circumferential surface of the first taper 21.

제1절개홈(22)은 제1테이퍼(21)에 길이 방향으로 다수개, 바람직하게는 3개가 형성되어 제1테이퍼(21)를 3개로 분리하게 한다. 이에 따라 제1테이퍼(21)의 외주면을 가압할 때 제1테이퍼(21)는 중심 방향으로 오무려지면서 제1결합단(P1')의 외주면에 강하게 밀착된다.A plurality of first cutting grooves 22 are formed in the first taper 21 in the longitudinal direction, preferably three, to separate the first taper 21 into three. Accordingly, when pressing the outer circumferential surface of the first taper 21, the first taper 21 is strongly pressed against the outer circumferential surface of the first coupling end P1 ′ while being pinched in the center direction.

제2압입부재(30)는, 제2끼움관(31)에 끼어진 제2주름관(P2)의 제2결합단(P2')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제2테이퍼(31)와, 제2테이퍼(31)를 절개하는 다수의 제2절개홈(32)과, 제2테이퍼(31)의 내주면에 뾰족한 다수의 제2핀엠보(33)를 포함한다. The second press-fit member 30 is coupled to the outer circumferential surface of the second coupling end P2 ′ of the second corrugated pipe P2 sandwiched by the second fitting pipe 31, and has a second taper having an inclined surface on one side ( 31), a plurality of second cutting grooves 32 for cutting the second taper 31, and a plurality of pointed second pin embosses 33 on the inner circumferential surface of the second taper 31.

제2절개홈(32)은 제2테이퍼(21)에 길이 방향으로 다수개, 바람직하게는 3개가 형성되어 제2테이퍼(31)를 3개로 분리하게 한다. 이에 따라 제2테이퍼(31)의 외주면을 가압할 때 제2테이퍼(31)는 중심 방향으로 오무려지면서 제2결합단(P2')의 외주면에 강하게 밀착된다. A plurality of second cutting grooves 32 are formed in the second taper 21 in the longitudinal direction, preferably three, to separate the second taper 31 into three. Accordingly, when pressing the outer circumferential surface of the second taper 31, the second taper 31 is strongly adhered to the outer circumferential surface of the second coupling end P2 ′ while being pinched in the center direction.

상기한 제1,2압입부재(20)(30)는, 도 1에 도시된 바와 같이, 각각의 제1,2테이퍼(21)(31)가 제1,2주름관(P1)(P2) 측을 향하도록 대향되게 배치된다. As shown in FIG. 1, the first and second taper members 20 and 30 have respective first and second taper 21 and 31 sides of the first and second wrinkle pipes P1 and P2. Are disposed to face each other.

도 4는 도 1의 제1,2바디를 발췌하여 도시한 반단면도이다. 4 is a half sectional view showing an extract of the first and second bodies of FIG.

도시된 바와 같이, 제1바디(40)는 제1압입부재(20)가 내장되게 결합되는 것으로서, 내주면에 형성되어 제1테이퍼(21)에 대향되는 역경사면을 가지는 제1역테이퍼(41)와, 외주면에 형성된 제1나사부(42)를 포함한다. 이때 제1나사부(42)를 제외한 외주면에는 렌치와 같은 공구에 의하여 회전시킬 수 있도록 육각형태의 렌치결합부(43)가 형성된다. As shown, the first body 40 is the first indentation member 20 is coupled to the built-in, the first inverse taper 41 is formed on the inner circumferential surface having a reverse inclined surface opposite to the first taper 21 And a first screw portion 42 formed on the outer circumferential surface thereof. At this time, the outer circumferential surface except the first screw portion 42 is formed with a hexagonal wrench coupling portion 43 to be rotated by a tool such as a wrench.

제2바디(50)는, 제2압입부재(30)가 내장되게 결합되는 것으로서, 내주면에 형성되어 제2테이퍼(31)에 대향되는 역경사면을 가지는 제2역테이퍼(51)와, 외주면에 제2나사부(52)를 포함한다. 이때 제2나사부(52)를 제외한 외주면에는 렌치와 같은 공구에 의하여 회전시킬 수 있도록 육각형태의 렌치결합부(53)가 형성된다. The second body 50 has a second inverse taper 51 having a reverse inclined surface formed on the inner circumferential surface and opposed to the second taper 31, and having a second indentation member 30 embedded therein. The second screw part 52 is included. At this time, on the outer circumferential surface except for the second screw portion 52, a hexagonal wrench coupling portion 53 is formed to be rotated by a tool such as a wrench.

상기한 제1나사부(42)의 나사산의 방향은 제2나사부(52)의 나사산의 방향과 반대로 형성되어 있다.The direction of the screw thread of the 1st screw part 42 is formed in the opposite direction to the direction of the screw thread of the 2nd screw part 52.

도 5는 도 1의 조인트를 발췌하여 도시한 반단면도이다. 5 is a half cross-sectional view taken from the joint of FIG.

도시된 바와 같이, 조인트(60)는, 제1바디(40)와 제2바디(50)를 상호 잡아당기기 위한 것으로서, 내주면 일측에 형성되어 제1나사부(42)에 나사결합되는 제3나사부(63)와, 내주면 타측에 형성되어 제2나사부(52)에 나사결합되는 제4나사부(64)를 포함한다. As shown, the joint 60 is for pulling the first body 40 and the second body 50 to each other, and is formed on one side of the inner circumferential surface thereof to be screwed to the first screw part 42 ( 63) and a fourth screw portion 64 formed on the other side of the inner circumferential surface and screwed to the second screw portion 52.

상기한 제3나사부(63)와 제2나사부(64)의 나사산 방향은 반대로 형성되어 있으며, 이에 따라 조인트(60)를 시계 또는 반시계 방향으로 회전시킴에 따라, 제1바디(40)와 제2바디(50)를 동시에 잡아당기거나 멀어지도록 한다. The screw threads of the third screw portion 63 and the second screw portion 64 are formed to be opposite to each other. Accordingly, as the joint 60 is rotated clockwise or counterclockwise, the first body 40 and the Pull two bodies (50) at the same time or away.

또한 조인트(60)의 외주면에는 렌치와 같은 공구에 의하여 회전시킬 수 있도록 육각형태의 렌치결합부(65)가 형성되어 있다. In addition, the outer circumferential surface of the joint 60 is formed with a hexagonal wrench coupling portion 65 so as to be rotated by a tool such as a wrench.

다음 상기한 구조의 가스이송용 주름신축관의 조립과정을 설명한다. Next will be described the assembly process of the gas transfer corrugated expansion tube of the above structure.

도 6은 도 1의 가스이송용 주름신축관의 조립과정을 설명하기 위한 도면이고, 도 7은 도 6의 가스이송용 주름신축관이 완전히 조립된 것을 설명하기 위한 도면이다. FIG. 6 is a view for explaining an assembly process of the gas transportation corrugated expansion tube of FIG. 1, and FIG. 7 is a view for explaining that the gas transportation corrugation expansion tube of FIG. 6 is completely assembled.

본 발명의 가스이송용 주름신축관을 조립하기 위하여, 먼저 제1,2결합단(P1')(P2') 각각을 제1,2바디(40)(50)를 끼우고, 제1압입부재(20)(30)를 제1,2바디(40)(50)에 내장되도록 끼운후, 조인트(60)를 관통하여 제1,2결합단(P1')(P2')에 연결관(10)을 끼우면 도 6에 도시된 상태가 된다. In order to assemble the corrugated expansion pipe for gas transport of the present invention, first, the first and second coupling ends (P1 ') (P2') to each of the first and second body (40, 50), the first press-fitting member ( 20 and 30 are inserted into the first and second bodies 40 and 50 and then connected to the first and second coupling ends P1 ′ and P2 ′ through the joint 60. Insert the into the state shown in FIG.

이 상태에서, 제1,2바디(40)(50)가 회전되지 않도록 렌치결합부(43)(53)를 렌치로 고정하고, 이후 조인트(60)의 렌치결합부(65)를 다른 렌치로 회전시키면, 제1,2바디(40)(50) 사이의 간격이 좁아진다. 이때 제1,2바디(40)(50)의 제1,2역테이퍼(41)(51)는 제1,2압입부재(20)(30)의 제1,2테이퍼(21)(31)를 제1,2결합단(P1')(P2') 측으로 가압하므로, 제1,2압입부재(20)(30)의 내주면은 제1,2결합단(P1')(P2')의 외주면에 강하게 밀착된다. In this state, the wrench coupling portions 43 and 53 are fixed with a wrench so that the first and second bodies 40 and 50 do not rotate, and then the wrench coupling portion 65 of the joint 60 is replaced with another wrench. When it rotates, the space | interval between the 1st, 2nd body 40 and 50 narrows. At this time, the first and second reverse tapers 41 and 51 of the first and second bodies 40 and 50 are the first and second tapers 21 and 31 of the first and second press-fit members 20 and 30. To press the first and second coupling ends P1 'and P2', so that the inner circumferential surface of the first and second pressing members 20 and 30 is the outer circumferential surface of the first and second coupling ends P1 'and P2'. Strongly adheres to.

한편 제1,2테이퍼(21)(31)의 내주면에 형성된 제1,2핀엠보(23)(33)는 제1,2결합단(P1')(P2')에 표면을 파고 들어가고, 이에 따라 상호 좁아지는 방향으로 이동하는 제1,2압입부재(20)(30)는 제1,2결합단(P1')(P2')을 돌출단턱(13) 측으로 강하게 밀어 이동시킨다. Meanwhile, the first and second pin embosses 23 and 33 formed on the inner circumferential surfaces of the first and second tapers 21 and 31 are dug into the first and second coupling ends P1 'and P2'. Accordingly, the first and second press-fit members 20 and 30 moving in the narrowing direction strongly push the first and second coupling ends P1 ′ and P2 ′ toward the protruding step 13.

그러면 제1,2결합단(P1')(P2')의 단부(P1")(P2")는 제1,2경사단(14)(15)을 타고 올라가면서 확관되어 도 7에 도시된 상태가 된다. Then, the ends P1 "and P2" of the first and second coupling ends P1 'and P2' are expanded while riding up the first and second inclined ends 14 and 15, and the state shown in FIG. Becomes

이에 따라, 제1,2결합단(P1')(P2')의 단부가 제1,2경사단(14)(15)에 의하여 확관되므로, 일단 조립이 완성된 이후 제1,2결합단(P1')(P2')는 제1,2압입부재(20)(30)에서 빠져나오지 않게 1차로 고정된다. Accordingly, the ends of the first and second coupling ends P1 ′ and P2 ′ are expanded by the first and second inclined ends 14 and 15, so that once the assembly is completed, the first and second coupling ends ( P1 ') P2' is first fixed so as not to escape from the first and second press-fit members 20 and 30.

또한 제1,2핀엠보(23)(33)가 제1,2결합단(P1')(P2')의 표면을 파고 들어가므로, 제1,2결합단(P1')(P2')은 제1,2압입부재(20)(30)에서 빠져나오지 않게 2차로 고정된다. In addition, since the first and second pin embosses 23 and 33 penetrate the surfaces of the first and second coupling ends P1 'and P2', the first and second coupling ends P1 'and P2' The first and second press-fit members 20 and 30 are fixed to the secondary so as not to escape.

그리고 제1,2오링(16)(17)은 제1,2결합단(P1')(P2')의 내주면에 밀착되어 고압의 가스가 새어나오지 못하게 밀폐력을 향상시킨다. In addition, the first and second O-rings 16 and 17 are in close contact with the inner circumferential surfaces of the first and second coupling ends P1 ′ and P2 ′ to improve the sealing force so that high pressure gas does not leak out.

이와 같이, 본 발명의 가스이송용 주름신축관은 제1,2결합단(P1')(P2')이 용접과정을 거치지 않고 커플러(100)에 의하여 연결되기 때문에, 용접과정에서 고열에 의한 파손이나, 용접부위의 부식등을 방지할 수 있다.As described above, the corrugated expansion pipe for gas transfer of the present invention is connected to the first and second coupling ends P1 'and P2' by the coupler 100 without undergoing a welding process, and thus, damage due to high heat during the welding process may occur. , Corrosion of welding part can be prevented.

또한 제1,2결합단(P1')(P2')의 단부는 제1,2경사단(14)(15)에 의하여 확관되고, 제1,2핀엠보(23)(33)가 제1,2결합단(P1')(P2')의 표면을 파고 들어가므로, 제1,2결합단(P1')(P2')은 제1,2압입부재(20)(30)에서 빠져나오지 않게 견고하게 고정된다. 이에 따라 가스가 새어나오지 못하게 밀폐력을 향상시킨다.In addition, end portions of the first and second coupling stages P1 'and P2' are expanded by the first and second inclined stages 14 and 15, and the first and second pin embosses 23 and 33 are arranged in a first manner. In order to dig into the surface of the second coupling end (P1 ') (P2'), the first and second coupling end (P1 ') (P2') does not escape from the first and second press-fit member (20, 30). It is firmly fixed. This improves the sealing force to prevent the gas from leaking out.

특히 제1,2오링(16)(17)이 제1,2결합단(P1')(P2') 내주면에 밀착되므로, 더더욱 밀폐력을 향상시킬 수 있고, 이에 따라 가스가 이송도중에 새어나오는 것을 다시한번 방지할 수 있는 것이다. In particular, since the first and second O-rings 16 and 17 are in close contact with the inner circumferential surfaces of the first and second coupling ends P1 'and P2', the sealing force can be further improved, and thus, the gas leaks back during the transfer. It can be prevented once.

본 발명은 도면에 도시된 일 실시예를 참고로 설명되었으나 이는 예시적인 것에 불과하며, 본 기술 분야의 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

10 ... 연결관 11, 12 ... 제1,2끼움관
13 ... 돌출단턱 14, 15 ... 제1,2경사단
16, 17 ... 제1,2오링 20, 30 ... 제1,2압입부재
21, 31 ... 제1,2테이퍼 22, 32 ... 제1,2절개홈
23, 33 ... 제1.2핀엠보 40, 50 ... 제1,2바디
41, 51 ... 제1,2역테이퍼 42, 52 ... 제1,2나사부
43, 43 ... 렌치결합부 60 ... 조인트
63, 54 ... 제3,4나사부 65 ... 렌치결합부10 ... connector 11, 12 ... 1, 2 fitting tube
13 ... protruding step 14, 15 ... 1st, 2nd inclination
16, 17 ... 1st, 2nd o-ring 20, 30 ... 1st, 2nd press-fitting member
21, 31 ... 1st, 2nd taper 22, 32 ... 1st, 2nd incision
23, 33 ... 1.2 pin embo 40, 50 ... 1, 2 body
41, 51 ... 1st, 2nd reverse taper 42, 52 ... 1st, 2nd thread
43, 43 ... wrench joint 60 ... joint
63, 54 ... 3rd, 4th thread 65 ... Wrench

Claims (5)

양단에 형성된 제1,2끼움관(11)(12)과, 상기 제1,2끼움관(11)(12) 사이의 중앙에 형성된 돌출단턱(13)을 가지는 연결관(10);
상기 제1끼움관(11)에 끼어진 제1주름관(P1)의 제1결합단(P1')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제1테이퍼(21)와, 상기 제1테이퍼(21)를 절개하는 다수의 제1절개홈(22)을 가지는 제1압입부재(20);
상기 제2끼움관(12)에 끼어진 제2주름관(P2)의 제2결합단(P2')의 외주면에 결합되는 것으로서, 일측으로 경사면이 형성된 제2테이퍼(31)와, 상기 제2테이퍼(31)를 절개하는 다수의 제2절개홈(32)을 가지는 제2압입부재(30);
상기 제1압입부재(20)가 내장되게 결합되는 것으로서, 내주면에 상기 제1테이퍼(21)에 대향되는 역경사면이 형성된 제1역테이퍼(41)와, 외주면에 형성된 제1나사부(42)를 가지는 제1바디(40);
상기 제2압입부재(30)가 내장되게 결합되는 것으로서, 내주면에 상기 제2테이퍼(31)에 대향되는 역경사면이 형성된 제2역테이퍼(51)와, 외주면에 형성된 제2나사부(52)를 가지는 제2바디(50); 및
내주면 일측에 상기 제1나사부(42)에 나사결합되는 제3나사부(63)가 형성되고, 상기 내주면 타측에 상기 제2나사부(52)에 나사결합되는 제4나사부(64)가 형성된 조인트(60);를 포함하고;
상기 연결관(10)은, 상기 제1,2끼움관(11)(12) 각각의 외주면에 형성되어 상기 돌출단턱(13)과 연결된 것으로서, 상기 돌출단턱(13)으로 갈수록 외경이 넓어지는 경사면이 형성된 제1,2경사단(14)(15)을 포함하는 것을 특징으로 하는 가스이송용 주름신축관.A connection pipe 10 having first and second fitting pipes 11 and 12 formed at both ends and a protruding step 13 formed at a center between the first and second fitting pipes 11 and 12;
It is coupled to the outer circumferential surface of the first coupling end (P1 ') of the first corrugated pipe (P1) sandwiched in the first fitting pipe 11, the first taper 21 having an inclined surface on one side, and the first taper A first press member 20 having a plurality of first cutting grooves 22 for cutting 21;
The second taper 31, which is coupled to the outer circumferential surface of the second coupling end (P2 ') of the second corrugated pipe (P2) sandwiched in the second fitting pipe 12, the inclined surface on one side, and the second taper A second press-fit member 30 having a plurality of second cutting grooves 32 for cutting 31;
The first press-fit member 20 is coupled to be built-in, the first reverse taper 41 formed on the inner peripheral surface opposite to the first taper 21 and the first screw portion 42 formed on the outer peripheral surface Branch having a first body 40;
The second press-fitting member 30 is coupled to be built-in, the second reverse taper 51 formed on the inner circumferential surface opposite to the second taper 31 and the second screw portion 52 formed on the outer circumferential surface A second body 50 having a branch; And
A joint 60 having a third screw portion 63 screwed to the first screw portion 42 on one side of the inner circumferential surface, and a fourth screw portion 64 screwed to the second screw portion 52 on the other side of the inner circumferential surface. );
The connecting pipe 10 is formed on the outer circumferential surface of each of the first and second fitting pipes 11 and 12 and connected to the protruding step 13, and an inclined surface of which the outer diameter becomes wider toward the protruding step 13. A corrugated expansion tube for gas transport, characterized in that it comprises a first and second inclined end (14, 15) formed. 삭제delete 제1항에 있어서, 상기 연결관(10)은,
상기 제1끼움관(11)의 외주면에 설치되는 제1오링(16)과, 상기 제2끼움관(12)의 외주면에 설치되는 제2오링(17)을 더 포함하는 것을 특징으로 하는 가스이송용 주름신축관.The method of claim 1, wherein the connecting pipe 10,
The first O-ring 16 is installed on the outer circumferential surface of the first fitting pipe 11, and the second o-ring 17 is provided on the outer circumferential surface of the second fitting pipe 12 further characterized in that Corrugated stretch tube. 제1항에 있어서,
상기 제1압입부재(20)는, 상기 제1테이퍼(21)의 내주면에 형성된 뾰족한 다수의 제1핀엠보(23)를 더 포함하고;
상기 제2압입부재(30)는, 상기 제2테이퍼(31)의 내주면에 형성된 뾰족한 다수의 제2핀엠보(33)를 더 포함하는 것;을 특징으로 하는 가스이송용 주름신축관.The method of claim 1,
The first press member 20 further includes a plurality of pointed first pin embosses 23 formed on an inner circumferential surface of the first taper 21;
The second press-fit member (30), further comprising a plurality of pointed second pin emboss (33) formed on the inner circumferential surface of the second taper (31); 제1항에 있어서,
상기 제1바디(40)에 있어 상기 제1나사부(42)를 제외한 외주면에 육각형태의 렌치결합부(43)가 형성되어 있고;
상기 제2바디(50)에 있어 상기 제2나사부(52)를 제외한 외주면에 육각형태의 렌치결합부(53)가 형성되어 있으며;
상기 조인트(60)의 외주면은 육각형태의 렌치결합부(65)가 형성된 것;을 특징으로 하는 가스이송용 주름신축관.The method of claim 1,
Hexagonal wrench engaging portions 43 are formed on the outer circumferential surface of the first body 40 except for the first screw portion 42;
Hexagonal wrench coupling portions 53 are formed on the outer circumferential surface of the second body 50 except for the second screw portion 52;
The outer circumferential surface of the joint 60 is formed with a hexagonal wrench coupling portion 65; corrugated expansion tube for gas transport, characterized in that.
KR1020120128487A 2012-11-14 2012-11-14 Expansion joint pipe Expired - Fee Related KR101386752B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104976453A (en) * 2015-07-10 2015-10-14 亚美滤膜（南通）有限公司 Clamping jaw type pipe connecting and fastening device
KR101594003B1 (en) 2015-11-09 2016-02-26 김재곤 MULTI-JOINT HOSE ASSEMBLY FOR He GAS TEST

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028081A (en) * 1987-06-05 1991-07-02 Societe Nationale Elf Aquitaine Connection for pipes of composite materials
JPH10318456A (en) * 1997-05-15 1998-12-04 Mitsubishi Plastics Ind Ltd Exchange fitting
US6988746B2 (en) * 2002-10-09 2006-01-24 Olson Mark H Nut type raintight threadless couplings and connectors for electrical conduits
JP2009156335A (en) * 2007-12-26 2009-07-16 Tabuchi Corp Resin pipe fitting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028081A (en) * 1987-06-05 1991-07-02 Societe Nationale Elf Aquitaine Connection for pipes of composite materials
JPH10318456A (en) * 1997-05-15 1998-12-04 Mitsubishi Plastics Ind Ltd Exchange fitting
US6988746B2 (en) * 2002-10-09 2006-01-24 Olson Mark H Nut type raintight threadless couplings and connectors for electrical conduits
JP2009156335A (en) * 2007-12-26 2009-07-16 Tabuchi Corp Resin pipe fitting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104976453A (en) * 2015-07-10 2015-10-14 亚美滤膜（南通）有限公司 Clamping jaw type pipe connecting and fastening device
KR101594003B1 (en) 2015-11-09 2016-02-26 김재곤 MULTI-JOINT HOSE ASSEMBLY FOR He GAS TEST

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