KR20140070728A - Structure for fixing flange to rib- steel pipe - Google Patents

Structure for fixing flange to rib- steel pipe Download PDF

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Publication number
KR20140070728A
KR20140070728A KR1020120134336A KR20120134336A KR20140070728A KR 20140070728 A KR20140070728 A KR 20140070728A KR 1020120134336 A KR1020120134336 A KR 1020120134336A KR 20120134336 A KR20120134336 A KR 20120134336A KR 20140070728 A KR20140070728 A KR 20140070728A
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KR
South Korea
Prior art keywords
flange
rib
steel pipe
circumferential surface
marking
Prior art date
Application number
KR1020120134336A
Other languages
Korean (ko)
Inventor
이영우
Original Assignee
(주) 보원건설산업
주식회사 삼민산업
주식회사 서창
(주)우진환경
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 (주) 보원건설산업, 주식회사 삼민산업, 주식회사 서창, (주)우진환경 filed Critical (주) 보원건설산업
Priority to KR1020120134336A priority Critical patent/KR20140070728A/en
Publication of KR20140070728A publication Critical patent/KR20140070728A/en

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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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
    • F16L23/026—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes by welding
    • 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
    • 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
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means

Abstract

The present invention relates to a rib steel pipe and a flange coupling structure in which a flange is coupled with an end of a rib steel pipe in which a rib and a lock seam part are formed in a spiral form.
The rib steel pipe and the flange coupling structure according to the present invention are characterized in that a plurality of bolt holes 12 are formed at a predetermined interval in the flange 10 on which the hollow portion 11 is formed and the plurality of rib grooves 13 A rib groove 13 corresponding to the rib 21 of the rib steel pipe 20 is disposed on the inner circumferential surface 15 of the flange 10 and the rib groove 13 of the flange 10 is inserted into the rib steel pipe 20, The periphery of the inner circumferential surface of the flange 10 is welded to the end portion 22 of the rib steel pipe 20 so as to coincide with the rib 21 of the rib 20.

Figure P1020120134336

Description

STRUCTURE FOR FIXING FLANGE TO RIB-STEEL PIPE [0002]

The present invention relates to a rib steel pipe and a flange coupling structure in which a flange is coupled to an end of a rib steel pipe in which a rib and a lock seam part are formed in a spiral shape.

Korean Patent Application Publication No. 10-2009-0085922 (published on Aug. 10, 2009) discloses "a corrugated steel pipe connector formed with a lock core. &Quot;

Wherein the corrugated steel pipe connection port formed with the lock core has a ring-shaped rubber band fitted in a state of applying a compression force to the outer circumferential surface of the end portion while connecting the ends of corrugated steel pipes adjacent to each other; A steel band which is wrapped around the outer circumferential surface of the rubber band in a state where both ends thereof are overlapped and has a spiral protrusion corresponding to a corrugation formed on the corrugated steel pipe; A pair of cylindrical bodies formed on the divided ends of the body, the body being wrapped around the outer circumferential surface of the steel band and being tightly contacted through a separate fastening member so as to apply a pressing force in a direction in which the steel band is wound, And includes a plate-like connecting band having a flange.

However, since the corrugated steel pipe connector having the lock core is required to form a steel band with a spiral protrusion corresponding to the corrugation formed on the corrugated steel pipe, it is difficult to manufacture a steel band, and a complicated joining structure is disadvantageous.

Therefore, it is an object of the present invention to provide a method of welding an end portion of a rib steel pipe around an inner circumferential surface of a flange such that rib grooves and ribs coincide with each other by forming rib grooves on the inner circumferential surface of the flange to correspond to the ribs of the rib steel pipe, So that the operator can conveniently match the rib groove of the flange and the rib of the rib steel pipe by looking at the marking portion and also provide a convenient rib steel pipe and flange coupling structure when connecting the two rib steel pipes.

According to an aspect of the present invention, there is provided a rib steel pipe and a flange coupling structure, wherein a plurality of bolt holes are formed at predetermined intervals in a flange having a hollow portion, a plurality of rib grooves are formed on an inner circumferential surface of the flange, And the inner circumferential surface of the flange is welded to the end of the rib steel pipe so that the rib groove of the flange is aligned with the rib of the rib steel pipe so as to correspond to the rib of the rib steel pipe.

The flange is characterized in that a marking protrusion is formed on an outer circumferential surface corresponding to a rib groove formed on an inner circumferential surface.

The flange is provided with a first marking portion displayed around the rib groove and the lock core portion so as to identify the position of the rib groove and the lock core portion, a second marking portion indicated by a triangle on the side of the position corresponding to the rib groove, And a third marking portion displayed on an outer circumferential surface at a position corresponding to the second marking portion.

A packing is arranged between two flanges when a flange attached to an end of one rib steel pipe is connected to a flange of a rib steel pipe connected to the flange, and the packing is formed in the same shape as the flange.

The end portions of the rib steel pipes are welded to the periphery of the inner circumferential surface of the flange and welded to the rear surface of the flange and the outer circumferential surface of the rib steel pipe, .

Thus, the rib steel pipe and the flange coupling structure according to the present invention can mount the flange to the end portion of the rib steel pipe without deforming the rib steel pipe, and the marking portion is formed on the flange, so that when the operator views the marking portion, It is possible to easily weld the deepest part of the rib to the rib and the deep part of the rib steel pipe, and to connect the multiple rib steel pipes to each other by flanges, Since the two rib steel pipe ribs connected by this connection do not interfere with each other and the rib groove of the inner surface of the two rib steel pipes which are joined to each other due to the flange of the present invention and the lock deep part are continuously connected to each other, The pressure transmission force is improved when the pressure is transmitted.

Also, since the ribs and the deep portion of the rib steel pipe are continuously connected to each other, the advantages of the ductility pipe can be maximized.

1 is an exploded perspective view showing a rib steel pipe and a flange coupling structure according to the present invention;
2 is an assembled perspective view showing a rib steel pipe and a flange coupling structure according to the present invention.
Fig. 3 is a perspective view showing the marking protrusion formed on the outer peripheral surface of the flange.
4 is a side view showing an example of connecting two flanges using a marking protrusion
5 is a perspective view schematically showing an example in which a marking portion is displayed on a flange;
6 is a side view showing an example in which the flange and the rib steel pipe are reinforced by the reinforcing member

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

1 and 2, a rib steel pipe and a flange coupling structure according to the present invention are characterized in that a plurality of bolt holes 12 are formed at predetermined intervals in a flange 10 on which a hollow portion 11 is formed, A plurality of rib grooves 13 are formed on the inner peripheral surface of the flange 10 and rib grooves 13 corresponding to the ribs 21 of the rib steel pipe 20 are disposed on the inner peripheral surface 15 of the flange 10, The circumference of the inner circumferential surface of the flange 10 is welded to the end 22 of the rib steel pipe 20 such that the rib groove 13 of the rib 20 is aligned with the rib 21 of the rib steel pipe 20. [

3, the flange 10 is formed with a marking protrusion 17 and a lock core portion (not shown) on the outer circumferential surface 16 so as to correspond to the rib groove 13 formed in the inner circumferential surface 15.

Thereby, when the worker welds the periphery of the inner circumferential surface of the flange 10 to the end of the rib steel pipe 20, the worker looks at the marking protruding portion 17 and the lock core portion and the rib groove 13 of the flange 10 It can be conveniently guided so as to coincide with the rib 21 of the rib steel pipe 20 and the lock core portion.

4, when the two rib steel pipes 20a and 20b are connected to each other, the marking protrusion 17a formed on the flange 10a of one of the rib steel pipes 20a and the rib steel pipe 20b The two flanges 10a and 10b are fastened with the bolts 30 so that the ribs 21a of the rib steel pipe 10a and the flange 10b of the flange 10b of the The ribs 21b of the ribs 20b to be connected can be continuously connected without being rotated. In order to more easily connect both flanges, the marking protrusions 17 of the flange are colored differently from each other and the marking protrusions 17 of the same color are connected to each other in consideration of the position of the recessed portion of the rib steel pipe

At this time, the packing 40 is disposed between the flange 10a and the flange 10b, and the packing 40 is formed in the same shape as the flanges 10a and 10b.

5, in another alternative, the flange 10 is marked with marking portions 19a, 19b and 19c around the rib groove 13. As shown in Fig.

The marking portions 19a, 19b and 19c are provided with a first marking portion 19a and a first marking portion 19a which are displayed around the rib groove 13 and the lock core portion so as to identify the positions of the rib groove 13 and the lock core portion, 13, a third marking portion 19b indicated by a triangle on the side of the position corresponding to the groove 13, and a third marking portion 19c indicated on the outer circumferential surface of the position corresponding to the groove 13.

Thus, when the worker welds the periphery of the inner circumferential surface of the flange to the end of the rib steel pipe, the operator looks at the marking portions (19a, 19b, 19c) and the lock deep portion and sees the rib groove of the flange and the rib In addition to being able to match conveniently, two rib steel tubes can be connected so that the ribs are continuous. In addition, considering the position of the recessed portion of the rib steel pipe, the color of the marking portion indicating the position of the flange rib groove is made different from each other, so that the two flanges of the same color are connected to each other.

6, when the ends of the rib steel tubes 20 are welded around the inner circumferential surface of the flange 10, the vertical sides 31 and the horizontal sides 31 of the reinforcing member 30 formed in the shape of a quarter- 32 are welded to the back surface of the flange 10 and the outer circumferential surface of the rib steel pipe 20, whereby the fixing of the flange 10 is reinforced.

The rib steel pipe and flange coupling structure according to the present invention having the above-described structure can fix the flange 10 to the end of the rib steel pipe 20 without deforming or weakening the rib steel pipe 20, There is an advantage that the steel pipe can be connected easily by the flange joint method.

10: Flange 14: Rocking heart groove
20: rib steel pipe 21: rib

Claims (5)

A plurality of bolt holes 12 are formed at regular intervals in the flange 10 on which the hollow portion 11 is formed and a plurality of rib grooves 13 are formed on the inner peripheral surface of the flange 10, A rib groove 13 corresponding to the rib 21 is disposed on the inner circumferential surface 15 of the flange 10 so that the rib groove 13 of the flange 10 coincides with the rib 21 of the rib steel pipe 20. [ , And the peripheral surface of the flange (10) is welded to the end portion (22) of the rib steel pipe (20).
The method according to claim 1,
The flange 10 is provided with a marking protrusion 17 on the outer circumferential surface 16 corresponding to the rib groove 13 formed in the inner circumferential surface 15 and the marking protrusions 17 are displayed in different colors Rib steel pipe and flange connection structure.
The method according to claim 1,
The flange 10 is provided with a first marking portion 19a and a first marking portion 19a displayed around the rib groove 13 and the lock core portion so as to identify the positions of the rib groove 13 and the lock core portion, And a third marking portion 19c on the outer circumferential surface at a position corresponding to the rib groove 13, wherein the marking portion indicated on the flange is a marking portion A ribbed steel pipe and a flange joint structure characterized by being displayed in different colors.
The method according to claim 1,
Characterized in that a packing is disposed between two flanges when a flange attached to an end of a rib steel pipe is connected to a flange of a rib steel pipe connected to the flange and a rib groove and a marking portion having the same shape as the flange are formed on the packing. Steel pipe and flange connection structure.
The method according to claim 1,
The vertical side 31 and the horizontal side 32 of the reinforcing member 30 formed in the form of a 1/4 circle piece are welded to the flange 10 in a state where the end portion of the rib steel pipe 20 is welded to the periphery of the inner circumferential surface of the flange 10 10 and the outer peripheral surface of the rib steel pipe 20 so that the fixing of the flange 10 is reinforced.
KR1020120134336A 2012-11-26 2012-11-26 Structure for fixing flange to rib- steel pipe KR20140070728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120134336A KR20140070728A (en) 2012-11-26 2012-11-26 Structure for fixing flange to rib- steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120134336A KR20140070728A (en) 2012-11-26 2012-11-26 Structure for fixing flange to rib- steel pipe

Publications (1)

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KR20140070728A true KR20140070728A (en) 2014-06-11

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KR1020120134336A KR20140070728A (en) 2012-11-26 2012-11-26 Structure for fixing flange to rib- steel pipe

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195482A (en) * 2016-09-09 2016-12-07 中交隧道局电气化工程有限公司 It is applicable to the flange connecting assembly of metal bellows
KR102232490B1 (en) * 2020-08-18 2021-03-26 (주)피엘에스 Pipe apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106195482A (en) * 2016-09-09 2016-12-07 中交隧道局电气化工程有限公司 It is applicable to the flange connecting assembly of metal bellows
KR102232490B1 (en) * 2020-08-18 2021-03-26 (주)피엘에스 Pipe apparatus

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