KR200417002Y1 - Device for connecting underground pipes - Google Patents

Device for connecting underground pipes Download PDF

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Publication number
KR200417002Y1
KR200417002Y1 KR2020060002904U KR20060002904U KR200417002Y1 KR 200417002 Y1 KR200417002 Y1 KR 200417002Y1 KR 2020060002904 U KR2020060002904 U KR 2020060002904U KR 20060002904 U KR20060002904 U KR 20060002904U KR 200417002 Y1 KR200417002 Y1 KR 200417002Y1
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KR
South Korea
Prior art keywords
sheet
pipes
foam sheet
foam
support
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KR2020060002904U
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Korean (ko)
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주수영
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주수영
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Priority to KR2020060002904U priority Critical patent/KR200417002Y1/en
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Publication of KR200417002Y1 publication Critical patent/KR200417002Y1/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
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
    • F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
    • F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/12—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with additional locking means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables

Abstract

본 고안은 두 파이프(18)(20)의 연결단부를 연결하는 지중매설관의 연결장치에 관한 것이다. 두 파이프(18)(20)의 연결단부상에 발포시이트(10)와 지지시이트(12)를 중첩하여 고정밴드(22)로 구속한 상태에서 발포시이트(10)를 가열발포시켜 두 파이프(16)(18)의 연결단부를 밀폐한다. 본 고안에 따라서, 발포시이트(10)는 주재료인 메탈로센 폴리에틸렌(PE)에 발포제로서 아조디카본아마이드가 혼합되고 저온압출하여 시이트상으로 제작되며, 지지시이트(12)는 폴리에틸렌 재질의 시이트로서 발포시이트(10)에 중첩되는 내면측에 편조형태의 절연피복형 전열선(14)이 매입된다.The present invention relates to a connection device of the underground buried pipe connecting the connecting end of the two pipes (18) (20). The foamed sheet 10 is heated and foamed in a state in which the foam sheet 10 and the support sheet 12 are overlapped and restrained by the fixing band 22 on the connecting end of the two pipes 18 and 20. Seal the connecting end of 18). According to the present invention, the foam sheet 10 is made of a sheet material by azodicarbonamide is mixed with a metallocene polyethylene (PE) as a blowing agent as a blowing agent, and extruded at low temperature, and the support sheet 12 is a sheet made of polyethylene. A braided insulating coated heating wire 14 is embedded on the inner surface side of the foam sheet 10.

지중매설관, 파이프, 발포시이트, 지지시이트. Underground buried pipes, pipes, foam sheets, support sheets.

Description

지중매설관의 연결장치 {DEVICE FOR CONNECTING UNDERGROUND PIPES}Underground buried pipes {DEVICE FOR CONNECTING UNDERGROUND PIPES}

도 1은 본 고안에 사용되는 지지시이트와 발포시이트를 보인 분리사시도.1 is an exploded perspective view showing a support sheet and a foam sheet used in the present invention.

도 2는 도 2에서 보인 지지시이트와 발포시이트를 결합하여 보인 사시도.FIG. 2 is a perspective view of the support sheet and the foam sheet shown in FIG.

도 3은 본 고안의 사용상태 종단면도.Figure 3 is a longitudinal cross-sectional view of the use state of the present invention.

도 4는 본 고안의 사용상태 횡단면도.Figure 4 is a cross-sectional view of the use state of the present invention.

도면의 주요부분에 대한 부호설명Explanation of Signs of Major Parts of Drawings

10... 발초시이트 12... 지지시이트10 ... Balcho Sheet 12 ... Support Sheet

14... 전열선 18, 20... 파이프14 ... heating wire 18, 20 ... pipe

본 고안은 지중매설관의 연결장치에 관한 것으로, 특히 연결될 두 파이프의 연결단부에 가열시 열융착성과 발포특성을 갖는 발포시이트와 이러한 발포시이트가 구속하에 발포될 수 있도록 지지하고 발포시이트에 대하여 열을 가할 수 있도록 하는 지지시이트를 권취하고 고정밴드로 체결한 상태에서 발포시이트를 가열발포시켜 두 파이프의 연결단부 외면에 융착되어 고정될 수 있도록 함으로서 두 파이프의 연결단부를 확고하게 밀폐시키는 지중매설관의 연결장치에 관한 것이다. The present invention relates to a connection device for underground buried pipe, and in particular, a foam sheet having heat sealability and foaming property when heated at a connection end of two pipes to be connected, and supporting such foam sheet to be foamed under restraint, The underground buried pipe which tightly seals the connection ends of the two pipes by winding the support sheet to be applied to the joint and fixing them with the fixing band to heat and foam the foam sheet to be fused and fixed to the outer surface of the connection ends of the two pipes. The connection device of the.

종래 하수관 또는 우수관을 구성하는 두 파이프의 연결단부 주위에 권취하여 이들 파이프의 연결단부상에 융착될 수 있도록 하는 연결밴드가 알려진 바 있다. 이러한 연결밴드는 폴레에틸렌과 같은 합성수지 시이트로 구성되고 그 내면측에 전열선이 지그재그 형태로 배치되고 연결밴드를 두 파이프의 연결단부상에 권취하여 전압일 인가하는 경우 전열선의 발열에 의하여 연결밴드의 일부가 용융되어 연결될 두 파이프의 연결단부에 융착될 수 있도록 한 것이 알려져 있다. 그러나 이러한 종래기술의 연결밴드는 전열선에 전압을 인가하여 발열케 하는 경우 전열선이 열팽창하여 인접한 전열선 부분과 단락이 일어나는 결점이 있어 인가되는 전압의 레벨과 전압을 인가하는 시간을 정확히 맞추어주어야 하는 불편한 전이 있으며 연결밴드의 열전도성이 낮아 연결밴드가 파이프에 전체적이고 균일하게 융착되지 못하는 결점이 있다.In the related art, a connection band is known to be wound around a connection end of two pipes constituting a sewage pipe or storm pipe to be fused on the connection end of these pipes. This connection band is composed of a synthetic resin sheet such as polyethylene, and heating wires are arranged in a zigzag shape on the inner side thereof, and a part of the connection bands is generated by heating of the heating wires when voltage is applied by winding the connection bands on the connection ends of two pipes. It is known that it can be melted and fused at the connecting end of two pipes to be connected. However, the connection band of the related art has a drawback in that the heating wire is thermally expanded and a short circuit occurs between adjacent heating wire parts when a heating voltage is applied to the heating wire, which is an inconvenient transition that must accurately match the level of the applied voltage and the time of applying the voltage. In addition, there is a drawback that the connection band is not thermally and uniformly fused to the pipe due to the low thermal conductivity of the connection band.

또한, 본원 출원인의 등록실용신안공보 등록번호 20-01402687에는 연결될 두 파이프의 연결단부의 외면에 중첩된 발포시이트와 지지시이트를 권취하여 발포시이트가 지지시이트에 의하여 구속된 상태에서 발포시이트가 가열발포되도록 함으로서 파이프의 연결단부를 확고하게 밀폐시키는 지중매설관의 연결장치가 소개되어 있다. 이와 같은 등록실용신안공보 등록번호 20-01402687에서는 발포시이트내에 전열선이 매입되어 있어 이에 전압을 인가하는 경우 전열선이 발열하여 발포시이트를 용융및 발포시킬 수 있게 되어 있으며 지지시이트는 발포되는 발포시이트를 지지하는 기능을 갖는다. 이와 같은 종래기술에 있어서는 발포시이트내에 전열선이 매입되어 있어 발포시이트가 전열선의 발열에 의하여 용융 및 발포될 때 전열선 자체가 발포시이트를 구성하고 있는 물질이 용융될 때 그 유동성에 제한을 가함으로서 연결될 파이프의 전주면에 균일하게 발포융착되는 것을 방해할 수 있다.In addition, the applicant's registration Utility Model Publication No. 20-01402687 discloses that the foam sheet is heated and foamed while the foam sheet is constrained by the support sheet by winding the foam sheet and the support sheet superimposed on the outer surfaces of the connection ends of the two pipes to be connected. The undergrounding pipe connecting device is introduced to securely seal the connecting end of the pipe. In this Utility Model Registration No. 20-01402687, a heating wire is embedded in the foam sheet, and when a voltage is applied thereto, the heating wire generates heat to melt and foam the foam sheet, and the support sheet supports the foam sheet to be foamed. Has the function to In this prior art, a heating wire is embedded in the foam sheet so that when the foam sheet is melted and foamed by the heat generation of the heating wire, the heating wire itself is limited to its fluidity when the material constituting the foam sheet is melted. It may prevent the foam fusion uniformly to the entire peripheral surface of the.

본 고안에 있어서는 종래의 이와 같은 문제점을 감안하여 안출한 것으로, 발포시이트내에 전열선을 매입하지 않고 지지시이트의 내면측에 전열선을 매입하여 발포시이트를 용융발포시킬 수 있도록 하여 연결될 두 파이프의 연결단부의 전주면에서 발포시이트의 균일한 용융발포가 이루어져 융착될 수 있도록 한 지중매설관의 연결장치를 제공하는데 그 목적이 있다.In the present invention, it is conceived in view of such a problem in the prior art, and it is possible to embed a heating wire in the inner surface side of the support sheet without embedding the heating wire in the foam sheet so that the foam sheet can be melt-foamed so as to connect the connecting ends of the two pipes. It is an object of the present invention to provide a connection device for underground buried pipes so that uniform melting and foaming of foam sheets can be fused on the entire circumference.

이를 위하여, 본 고안에 있어서는 두 파이프의 연결단부를 연결하는 지중매설관의 연결장치를 제공한다. 두 파이프의 연결단부상에 발포시이트와 지지시이트를 중첩하여 고정밴드로 구속한 상태에서 발포시이트를 가열발포시켜 두 파이프의 연결단부를 밀폐한다. 본 고안에 따라서, 발포시이트가 주재료인 메탈로센 폴리에틸렌(PE)에 발포제로서 아조디카본아마이드가 혼합되고 저온압출하여 시이트상으로 제작되며, 지지시이트는 폴리에틸렌 재질의 시이트로서 발포시이트에 중첩되는 내면측에 편조형태의 절연피복형 전열선이 매입된다.To this end, the present invention provides a connection device of the underground buried pipe connecting the connecting ends of the two pipes. The foam sheet and the support sheet are superimposed on the connection ends of the two pipes, and the foam sheet is heated and foamed in the state of being restrained by the fixing band to seal the connection ends of the two pipes. According to the present invention, azodicarbon amide is mixed with metallocene polyethylene (PE) whose foam sheet is a main material as a foaming agent, and is extruded at low temperature to produce a sheet, and the support sheet is an inner sheet which is superimposed on the foam sheet as a polyethylene sheet. A braided insulating coated heating wire is embedded on the side.

본 고안을 첨부도면에 의거하여 보다 상세히 설명하면 다음과 같다.Referring to the present invention in more detail based on the accompanying drawings as follows.

도 1과 도 2는 본 고안의 주요 구성요소로서 발포시이트(10)와 지지시이트(12)를 전개하여 보이고 있다.1 and 2 show the expanded sheet 10 and the support sheet 12 as main components of the present invention.

지지시이트(12)는 두께 3~5 mm의 폴리에틸렌(PE) 재질의 시이트이고 발포시 이트(10)에 중첩되는 내면측에 전열선(14)이 지그재그 형태로 매입되며 전압이 인가될 수 있도록 하는 외부도선(16)을 갖는다.The support sheet 12 is a sheet made of polyethylene (PE) material having a thickness of 3 to 5 mm, and the heating wire 14 is embedded in a zigzag form on the inner surface side overlapping the foam sheet 10 so that a voltage can be applied thereto. It has a conductive wire 16.

본 고안에 있어서, 이러한 전열선(14)은 절연피복을 가지며, 편조형태의 절연피복으로 피복된 전열선이 사용되는 것이 좋다.In the present invention, such a heating wire 14 has an insulating coating, it is preferable that a heating wire coated with a braided insulating coating.

한편, 발포시이트(10)는 종래의 기술과 같이 전열선이 매입되는 것이 아니다. 이러한 발포시이트(10)는 주요재질이 메탈로센 폴리에틸렌(PE)이며 이에 발포제로서 0.5~1.5 중량% 의 아조디카본아마이드가 혼합되고 저온압출하여 1~2 mm 두께의 시이트상으로 제작한 것이다.On the other hand, the foam sheet 10 is not embedded with a heating wire as in the prior art. The foam sheet 10 is made of metallocene polyethylene (PE), and 0.5 to 1.5% by weight of azodicarbonamide is mixed as a blowing agent, and is extruded at low temperature to produce a sheet having a thickness of 1 to 2 mm.

이와 같은 발포시이트(10)는 지지시이트(12)와 중첩되어 사용되거나 발포시이트(10)가 먼저 연결된 두 파이프(18)(20)의 연결단부상에 1회 이상 권취된 후에 그 외면에 지지시이트(12)가 권취되며 고정밴드(22)를 권취하여 볼트-너트 조립체(24)로 고정체결하여 사용될 수 있게 되어 있다(도 3 및 도 4 참조).Such a foam sheet 10 is used overlapping with the support sheet 12 or the support sheet is wound on the outer surface after the foam sheet 10 is first wound on at least one end of the two pipes 18 and 20 to which the foam sheet 10 is connected. 12 is wound and the fixing band 22 is wound so that it can be fixedly fastened to the bolt-nut assembly 24 (see FIGS. 3 and 4).

이와 같은 본 고안은, 상기 언급된 바와 같이, 연결될 두 파이프(18)(20)의 연결단부상에 발포시이트(10)와 지지시이트(12)를 중첩하여 발포시이트(10)가 파이프(18)920)의 외면에 밀착되게 권취하거나 발포시이트(10)를 먼저 연결된 두 파이프(18)(20)의 연결단부상에 1회 이상 권취한 후에 그 외면에 지지시이트(12)를 권취하고 고정밴드(22)를 권취하여 볼트-너트 조립체(24)로 고정체결하여 사용될 수 있게 되어 있다. 이와 같이, 두 파이프상(18)(20)에 체결된 상태에서 지지시이트(12)의 전열선(14)에 외부도선(16)을 통하여 전압을 인가하면 전열선(14)이 발열하여 지지시이트(12)의 내측에 권취된 발포시이트(10)가 용융됨과 동시에 발포되어 지지시이트(12)의 구속하에 파이프(18)(20)의 외주면과 지지시이트(12) 사이에 발포층이 형성되면서 두 파이프(18)(20)의 연결단부를 완벽하게 밀폐할 것이다. 이후에, 고정밴드(22)를 그대로 체결된 상태에서 또는 분리된 상태에서 두 파이프(16)(18)를 매설하여 사용할 수 있다.The present invention, as mentioned above, overlaps the foam sheet 10 and the support sheet 12 on the connection ends of the two pipes 18 and 20 to be connected so that the foam sheet 10 is connected to the pipe 18. 920 is wound in close contact with the outer surface or the foam sheet 10 is first wound on the connection end of the two pipes (18) 20 connected first, and then the support sheet (12) is wound on the outer surface and the fixed band ( 22) can be wound and fastened to the bolt-nut assembly 24 for use. As such, when a voltage is applied to the heating wire 14 of the support sheet 12 through the external conductor 16 in the state in which the two pipes 18 and 20 are fastened, the heating wire 14 generates heat to support the sheet 12. As the foam sheet 10 wound inside the sheet is melted and foamed, a foam layer is formed between the outer circumferential surface of the pipes 18 and 20 and the support sheet 12 under the restraint of the support sheet 12, thereby forming two pipes ( 18) The connection ends of 20 will be completely sealed. Thereafter, the fixed band 22 may be used by embedding the two pipes 16 and 18 in the fastened state or the separated state.

이와 같이, 본 고안은 발포시이트내에 전열선을 매입하지 않고 지지시이트의 내면측에 전열선을 매입하여 발포시이트를 용융발포시킬 수 있도록 하여 연결될 두 파이프의 연결단부의 전주면에서 발포시이트의 균일한 용융발포가 이루어져 융착될 수 있도록 한 지중매설관의 연결장치를 제공한다.As described above, the present invention allows a melted foam of the foam sheet by embedding a heating wire on the inner surface side of the support sheet without embedding the heating wire in the foam sheet, so that uniform melt foaming of the foam sheet is performed on the entire circumferential surface of the connecting ends of the two pipes to be connected. It provides a connection device for underground buried pipe to be made and fused.

Claims (1)

두 파이프(18)(20)의 연결단부를 연결하는 지중매설관의 연결장치로서, 두 파이프(18)(20)의 연결단부상에 발포시이트(10)와 지지시이트(12)를 중첩하여 고정밴드(22)로 구속한 상태에서 발포시이트(10)를 가열발포시켜 두 파이프(16)(18)의 연결단부를 밀폐하는 것에 있어서, 발포시이트(10)가 주재료인 메탈로센 폴리에틸렌(PE)에 발포제로서 아조디카본아마이드가 혼합되고 저온압출하여 시이트상으로 제작되며, 지지시이트(12)는 폴리에틸렌 재질의 시이트로서 발포시이트(10)에 중첩되는 내면측에 편조형태의 절연피복형 전열선(14)이 매입됨을 특징으로 하는 지중매설관의 연결장치.As the connecting device of the underground buried pipe connecting the connecting ends of the two pipes (18) and (20), the foam sheet (10) and the support sheet (12) are overlapped and fixed on the connecting ends of the two pipes (18) and (20). In sealing the connection ends of the two pipes 16 and 18 by heating and foaming the foam sheet 10 in a state in which the band 22 is restrained, the metallocene polyethylene (PE) whose foam sheet 10 is the main material Azodicarbon amide is mixed as a blowing agent, and is extruded at a low temperature to produce a sheet. The support sheet 12 is a polyethylene material, and a braided insulating coating wire 14 is formed on an inner surface of the sheet 10 overlapping the foam sheet 10. Connection device of the underground buried pipe, characterized in that it is embedded.
KR2020060002904U 2006-02-02 2006-02-02 Device for connecting underground pipes KR200417002Y1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009154387A2 (en) * 2008-06-16 2009-12-23 주식회사 아주미 Electrofusion joint pipe for synthetic resin pipes
WO2010027242A2 (en) * 2008-09-08 2010-03-11 주식회사 아주미 Pipe joint assembly for connecting underground pipes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009154387A2 (en) * 2008-06-16 2009-12-23 주식회사 아주미 Electrofusion joint pipe for synthetic resin pipes
WO2009154387A3 (en) * 2008-06-16 2010-03-25 주식회사 아주미 Electrofusion joint pipe for synthetic resin pipes
WO2010027242A2 (en) * 2008-09-08 2010-03-11 주식회사 아주미 Pipe joint assembly for connecting underground pipes
WO2010027242A3 (en) * 2008-09-08 2010-07-22 주식회사 아주미 Pipe joint assembly for connecting underground pipes

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