KR20170047015A - Flexible connecting pipe - Google Patents

Flexible connecting pipe Download PDF

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Publication number
KR20170047015A
KR20170047015A KR1020150147386A KR20150147386A KR20170047015A KR 20170047015 A KR20170047015 A KR 20170047015A KR 1020150147386 A KR1020150147386 A KR 1020150147386A KR 20150147386 A KR20150147386 A KR 20150147386A KR 20170047015 A KR20170047015 A KR 20170047015A
Authority
KR
South Korea
Prior art keywords
pipe
socket
flange
tube
connection pipe
Prior art date
Application number
KR1020150147386A
Other languages
Korean (ko)
Inventor
허병욱
Original Assignee
현대주철산업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대주철산업 주식회사 filed Critical 현대주철산업 주식회사
Priority to KR1020150147386A priority Critical patent/KR20170047015A/en
Publication of KR20170047015A publication Critical patent/KR20170047015A/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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • 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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
    • F16L21/04—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement

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

Abstract

The present invention relates to an expansion joint pipe used to connect pipes of two lines having a flange in a limited space. According to the present invention, the connection pipe (20) is inserted into a socket pipe (10), and a whole connection length (L2) of the socket pipe (10) and the connection pipe (20) in accordance with the length (L1) in which the socket pipe (10) and the connection pipe (20) are overlapped is determined. A hanging protrusion unit (21) is formed on the outer circumference of the other end of the connection pipe (20). The hanging protrusion unit (21) of the connection pipe (20) slides along the inner circumference of the socket pipe (10) while the circumference of the hanging protrusion unit (21) of the connection pipe (20) is attached to the inner circumference of the socket pipe (10). A hanging projection (11) is formed on one end of the inner circumference of the socket pipe (10), and the hanging protrusion unit (21) of the connection pipe (20) is hung on the hanging projection (11) of the socket pipe (10). So, the connection pipe (20) is prevented from being disconnected from the socket pipe (10), and a sealing ring (30) is installed in an expansion water inlet (12) formed at one end of the socket pipe (10). A third flange (42) of a pressing ring (40) inserted into the connection pipe (20) and a second flange (13) of the expansion water inlet (12) are connected by a first bolt (50) and a nut (55). When the nut (55) of the first bolt (50) is clamped, a pressing unit (41) of the pressing ring (40) presses the sealing ring (30). Therefore, a gap between the expansion water inlet (12) and the connection pipe (20) is sealed by the sealing ring (30). Also, a fourth flange (25) is connected to one end of the connection pipe (20).

Description

FLEXIBLE CONNECTING PIPE

The present invention relates to a flexible joint pipe used for connecting two pipes and pipes having flanges in a limited space, and more particularly, to a pipe joint having a socket pipe and a connection pipe, The present invention relates to a flexible joint pipe in which a total length of a connection pipe and a connection pipe can be varied.

"New extension pipe fitting" is introduced in Korean Utility Model Registration No. 20-0471097 (registered on Jan. 24, 2014).

Wherein the expansion joint device comprises: a first member having a retractable outer tube; A second member having an expansion / contraction inner tube; A packing member coupled from the expansion / contraction inner tube side to the expansion / contraction outer side; A packing pressurizing ring which is assembled to be slidable in a fixed engaging jaw and an elastic tube provided at an end of the elongating and contracting outer tube so as to press the packing member and is urged toward the engaging jaw by the adjusting bolt and nut; And an escape preventing stopper ring coupled to the expansion and contraction inner tube so as to be located inside the elasticized outer tube.

However, when the stopper ring is wedged in the form of a wedge on the outside of the inner tube extension inner tube of the expansion / contraction outer tube, since the stopper ring is separately manufactured and disposed at the lower portion of the packing member, It can be peeled off and harmful to the human body can be eluted, and it is difficult to disassemble the tube, which may cause problems in reworking.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a socket pipe and a method of manufacturing the same, wherein a connection pipe is inserted into a socket pipe, and the length of the socket pipe and the connection pipe are overlapped, The expansion joint can easily connect the first pipe to the second pipe by connecting the socket pipe to the first pipe and connecting the pipe to the second pipe by pulling the connection pipe from the socket pipe. Tube.

According to another aspect of the present invention, there is provided a telescoping joint pipe, wherein a connection pipe is inserted into a socket pipe, a total length of a connection between the socket pipe and the connection pipe is determined according to the length of the socket pipe and the connection pipe overlap, The engaging projection of the connecting tube can be slid along the inner circumferential surface of the socket tube in a state where the engaging protrusion is formed on the outer circumferential surface of the other end and the periphery of the engaging projection of the connector tube is in close contact with the inner circumferential surface of the socket tube, The coupling protrusion of the coupling tube is caught by the coupling protrusion of the socket tube so that the coupling tube is prevented from being dislodged from the socket tube and the sealing ring is disposed in the extension tube portion formed at one end of the socket tube, The third flange of the presser ring and the second flange of the extension claw are engaged by the first bolt and the nut and when the nut of the first bolt is tightened, the pressing portion of the presser ring presses the seal ring, A seal ring is sealed between the water pipe extension part and the connection pipe, and a fourth flange is coupled to one end of the connection pipe.

Further, in the present invention, one end of the connecting tube, which is opposite to the other end where the latching protrusion is formed, is inserted into the socket tube toward the side where the first flange is formed, with one end of the connecting tube being connected to the socket The third flange of the pressurizing ring and the second flange of the socket tube are connected to the first flange of the socket tube through the connecting pipe, And when the nut of the first bolt is tightened, the pressurizing portion of the pressurizing ring presses the sealing ring disposed in the water outlet, sealing between the water inlet and the connecting tube by the sealing ring, And the fourth flange is coupled to one end of the pipe.

The socket tube is characterized in that the socket tube is formed with an engagement step on an inner circumferential surface at one end, a water outlet extension at one end, a second flange around the water outlet extension, and a first flange at the other end.

The connecting tube has a fourth flange at one end thereof, a latching protrusion at an outer circumferential surface of the other end, and a guide slope at the other end of the inner circumferential surface.

As a result, according to the present invention, the connection pipe is inserted into the socket pipe, and the total length of the connection between the socket pipe and the connection pipe can be expanded and contracted according to the length of overlapping of the socket pipe and the connection pipe, It is possible to easily connect the first pipe and the second pipe separated from each other in the limited space between the two pipes and if the total length of the connection pipe and the socket pipe is increased due to external environmental factors, The guide tube is hooked on the jaw so as to prevent the connector tube from being dislodged from the socket tube and a guide tapered portion is formed at the other end of the connector tube so that when the fluid flows into the connector tube from the socket tube, It is possible to prevent vortexes from being generated at the other end.

1 is a perspective view showing an expansion joint pipe according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 showing a telescopic joint pipe according to the present invention.
3 is an exploded cross-sectional view of a telescopic joint pipe according to the present invention.
4 and 5 show an example in which two pipes are connected by the expansion joint pipe according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 to 3, the expansion joint pipe according to the present invention is characterized in that the connection pipe 20 is inserted into the socket pipe 10 and the length L1 of the connection pipe 20 overlaps the socket pipe 10 The total coupling length L2 of the socket tube 10 and the coupling tube 20 is determined and the coupling projection 20 is formed on the outer peripheral surface of the other end of the coupling tube 20 and the coupling projection 20 The locking projection 21 of the coupling tube 20 can be slid along the inner circumferential surface of the socket tube 10 while the circumference of the socket tube 10 is in close contact with the inner circumferential surface of the socket tube 10, The coupling protrusion 21 of the coupling tube 20 is caught by the coupling protrusion 11 of the socket tube 10 and the coupling tube 20 is disengaged from the socket tube 10 The sealing ring 30 is disposed in the extension water port 12 formed at one end of the socket tube 10 and the third flange 42 of the pressure ring 40 fitted to the connection pipe 20 and the extension pipe The second flange 13 of the portion 12 is engaged with the first bolt 50 and the nut 55 of the first bolt 50 and the nut 55 of the first bolt 50 is tightened, the pressing portion 41 of the pressing ring 40 presses the sealing ring 30, And the fourth flange 25 is coupled to one end of the connection pipe 20. The fourth flange 25 is connected to the second flange 25 at one end thereof.

3, the fourth joint flange 25 is separated from the one end of the connection pipe 20 when the connection pipe 20 is inserted into the socket pipe 10 according to the present invention as described above, One end of the connecting pipe 20 opposite to the other end where the latching protrusion 21 is formed is inserted into the socket pipe 10 toward the side where the first flange 14 is formed and one end of the connecting pipe 20 is inserted into the socket pipe 10, The sealing ring 30 is disposed in the water outlet extension portion 12 of the socket tube 10 through the connection pipe 20 and the pressure ring 40 is connected to the connection pipe 20 The third flange 42 of the presser ring 40 and the second flange 13 of the socket tube 10 are engaged by the first bolt 50 and the nut 55 and the first bolt 50 The pressing portion 41 of the pressing ring 40 presses the sealing ring 30 disposed in the water inlet 12 and the sealing ring 30 presses the nut 55 of the water outlet 12, (12) and the connection pipe (20) are sealed, and one end of the connection pipe (20) The Flange 25 is coupled.

The socket tube 10 is formed with an engagement protrusion 11 at an inner circumferential surface at one end thereof and a water pipe extension 12 at one end thereof and a second flange 13 around the water pipe extension 12 And the first flange 14 is formed at the other end.

The connecting pipe 20 has a fourth flange 25 at one end and a locking protrusion 21 at the outer circumferential surface of the other end and a guide slanting portion 22 at the other end of the inner circumferential surface.

The coupling between the coupling pipe 20 and the second flange 25 is introduced in the prior art described below, and a detailed description thereof will be omitted.

Korean Registered Patent No. 10-1008710 (registered on Jan. 10, 2011) Title of the Invention: Cast iron pipe flange coupling structure and its joining method,

Patent No. 10-0718684 (registered on May 9, 2007) Title of invention: Flange socket assembly for connecting a cast iron pipe,

Japanese Patent Application Laid-Open No. 10-2014-0041989 (filed on Apr. 7, 2014) Title of the invention:

The guide inclined portion 22 is caught by the end of the connecting tube 20 when the fluid flows into the connecting tube 20 from the socket tube 10 so that a vortex is generated at the other end of the connecting tube 20 .

The pressurizing ring 40 has a third flange 42 formed at one end of the pressurizing cylindrical portion 41.

4 and 5, an example in which two pipes are connected using the expansion joint pipe according to the present invention will be described.

As shown in FIG. 4, the first pipe P1 and the second pipe P2 are spaced apart from each other, and the expansion joint pipe according to the present invention is disposed between the first pipe P1 and the second pipe P2 The first pipe p1 and the second pipe P2 can be connected. That is, the socket pipe 10 and the connection pipe 20 are disposed between the first pipe P1 and the second pipe P2 in a superimposed state.

5, the other end of the socket tube 10 is brought into close contact with the end of the first pipe P1, and the first flange 14 of the socket tube 10 and the flange 14 of the first pipe P1, (61) is coupled by the second bolt (63) and the nut (65). The connecting pipe 20 is drawn out from the socket pipe 10 so that one end of the connecting pipe 20 is in close contact with the end of the second pipe P2 and the fourth flange 25 of the connecting pipe 20 The flange 71 of the second pipe P2 is engaged by the third bolt 73 and the nut 75. [

The expansion joint pipe according to the present invention as described above is constructed such that the connection pipe 20 is inserted into the socket pipe 10 and the socket pipe 10 is inserted into the socket pipe 10 according to the length L1 of the overlapping of the socket pipe 10 and the connection pipe 20. [ The total length L2 of the connection pipe 20 and the total length L2 of the connection pipe 20 is expanded and contracted so that the distance between the first pipe P1 and the second pipe P2 in the limited space between the first pipe P1 and the second pipe P2 The connection pipe 20 can be connected to the second pipe P2 by connecting the socket pipe 10 to the first pipe P1 and drawing the connection pipe 20 from the socket pipe 10 The first pipeline P1 and the second pipeline P2 can be easily connected to each other.

When the total engagement length L2 of the socket tube 10 and the connection tube 20 is increased due to external environmental factors, the engagement protrusion 21 of the connection tube 20 is inserted into the engagement protrusion (not shown) of the socket tube 10 11, so that the connection pipe 20 can be prevented from being dislodged from the socket tube 10. Here, the present invention is advantageous in that components such as a grip ring are not required, and that coating of the connection pipe and the socket pipe can be prevented from being peeled off.

10: socket tube 20: connector
30: sealing ring 40: pressure ring

Claims (4)

The connection pipe 20 is inserted into the socket pipe 10 and the total length L2 of the socket pipe 10 and the connection pipe 20 is determined according to the length L1 in which the socket pipe 10 and the connection pipe 20 overlap each other. And the engaging protrusion 21 is formed on the outer circumferential surface of the other end of the connecting tube 20. In a state in which the periphery of the engaging projection 21 of the connecting tube 20 is in close contact with the inner circumferential surface of the socket tube 10, The coupling protrusion 21 of the tube 20 can be slid along the inner circumferential surface of the socket tube 10 and the coupling protrusion 11 is formed at one end of the inner circumferential surface of the socket tube 10, The projecting portion 21 is caught by the engagement protrusion 11 of the socket tube 10 so that the connection tube 20 is prevented from being taken out of the socket tube 10 and the extension tube 12 And the third flange 42 of the presser ring 40 and the second flange 13 of the extending mouth portion 12 are fitted to the first bolt 50 And the nut 55. When the nut 55 of the first bolt 50 is tightened, The pressing portion 41 of the ring 40 presses the sealing ring 30 so that the sealing ring 30 is sealed between the water receiving portion 12 and the connecting pipe 20, And a fourth flange (25) is coupled to one end of the second flange (25).
The method according to claim 1,
One end of the connecting pipe 20 opposite to the other end where the latching protrusion 21 is formed is connected to the socket flange 14 on the side where the first flange 14 is formed, The sealing ring 30 is inserted through the connecting pipe 20 into the water pipe extension part 12 of the socket pipe 10 in a state in which one end of the connecting pipe 20 is drawn out from the socket pipe 10 And the third flange 42 of the presser ring 40 and the second flange 13 of the socket tube 10 are inserted into the first bolt 40 in the state where the presser ring 40 is fitted in the connecting pipe 20. [ When the nut 55 of the first bolt 50 is tightened, the pressing portion 41 of the pressing ring 40 is engaged with the sealing ring 50 disposed on the water outlet portion 12, And the fourth flange 25 is coupled to one end of the connection pipe 20 so that the first flange 25 and the second flange 25 are connected to each other by the seal ring 30, It is characterized by expansion joint pipe.
The method according to claim 1,
The socket tube 10 is formed with an engagement protrusion 11 at an inner circumferential surface at one end thereof and a water pipe extension 12 at one end thereof and a second flange 13 around the water pipe extension 12 , And a first flange (14) is formed at the other end.
The method according to claim 1,
Characterized in that the connecting pipe (20) is provided with a fourth flange (25) at one end, a latching protrusion (21) formed at an outer circumferential surface of the other end, and a guide slanting section (22) tube.
KR1020150147386A 2015-10-22 2015-10-22 Flexible connecting pipe KR20170047015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150147386A KR20170047015A (en) 2015-10-22 2015-10-22 Flexible connecting pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150147386A KR20170047015A (en) 2015-10-22 2015-10-22 Flexible connecting pipe

Publications (1)

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KR20170047015A true KR20170047015A (en) 2017-05-04

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102137228B1 (en) * 2019-09-09 2020-07-23 권태웅 Corrosion prevention multiunit pipe
WO2020167280A3 (en) * 2019-02-15 2020-09-17 Ges Döküm Ürünleri̇ Metalurji̇ İmalat İnşaat Sanayi̇ Ve Ti̇caret Ltd. Şti̇. Telescope feeder production method and telescope feeder
CN112610759A (en) * 2020-12-14 2021-04-06 刘飞杨 Sealing ring and connecting piece for pipeline reducing connection and use method
KR20210081755A (en) 2019-12-24 2021-07-02 주식회사 티엠에스 A valve union
KR20220010853A (en) 2020-07-20 2022-01-27 주식회사 티엠에스 A valve union

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020167280A3 (en) * 2019-02-15 2020-09-17 Ges Döküm Ürünleri̇ Metalurji̇ İmalat İnşaat Sanayi̇ Ve Ti̇caret Ltd. Şti̇. Telescope feeder production method and telescope feeder
KR102137228B1 (en) * 2019-09-09 2020-07-23 권태웅 Corrosion prevention multiunit pipe
KR20210081755A (en) 2019-12-24 2021-07-02 주식회사 티엠에스 A valve union
KR20220010853A (en) 2020-07-20 2022-01-27 주식회사 티엠에스 A valve union
CN112610759A (en) * 2020-12-14 2021-04-06 刘飞杨 Sealing ring and connecting piece for pipeline reducing connection and use method

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