KR20110030008A - Corrugated pipe having double wall - Google Patents

Corrugated pipe having double wall Download PDF

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Publication number
KR20110030008A
KR20110030008A KR1020090087928A KR20090087928A KR20110030008A KR 20110030008 A KR20110030008 A KR 20110030008A KR 1020090087928 A KR1020090087928 A KR 1020090087928A KR 20090087928 A KR20090087928 A KR 20090087928A KR 20110030008 A KR20110030008 A KR 20110030008A
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South Korea
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wall
corrugated pipe
double
double wall
density polyethylene
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KR1020090087928A
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Korean (ko)
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KR101169600B1 (en
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강병린
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우원산업(주)
강병린
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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
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the 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
    • F16L9/00—Rigid pipes
    • F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies

Abstract

PURPOSE: A corrugated pipe having a double wall is provided to minimize damage to inner wall by minimizing contact friction when an optical cable is inserted into the inner wall. CONSTITUTION: A corrugated pipe having a double wall comprises an inner wall(100) and an outer wall(200). The inner wall is formed of high density polyethylene resin. The corrugation of the inner wall is formed along a longitudinal direction. The corrugation is comprised of ridges(101) and grooves(102). The outer wall is formed of flame-retardant polyvinyl chloride resin. The ridges(201) and grooves(202) of the outer wall are equal to the ridges and grooves of the inner wall. The outer wall engages with the outer circumference of the inner wall.

Description

이중벽 주름관{Corrugated pipe having double wall}Corrugated pipe having double wall

본 발명은 주름관에 관한 것으로, 특히 내벽과 외벽이 서로 다른 물성의 합성수지로 이루어진 이중벽 주름관에 관한 것이다.The present invention relates to a corrugated pipe, and more particularly, to a double wall corrugated pipe made of synthetic resin having different physical properties of inner and outer walls.

관의 길이방향을 따라 산과 골이 일정 간격으로 이루어져 있는 주름관(corrugated pipe)은 휘는 특성, 즉 가요성(可撓性)이 우수하기 때문에 배수관이나 송풍관 또는 전선 보호관 등의 다양한 용도로 널리 사용되고 있으며, 주된 소재로는 폴리염화비닐(PVC : Polyvinyl Chloride)이나 고밀도 폴리에틸렌(HDPE : High Density Polyethylene) 등의 플라스틱이 적용되고 있다.Corrugated pipes, which are formed at regular intervals between the mountains and valleys along the length of the pipe, have excellent bending characteristics, that is, flexibility, and are widely used for various purposes such as drainage pipes, blower pipes, or wire protection pipes. Main materials include plastics such as polyvinyl chloride (PVC) and high density polyethylene (HDPE).

종래의 일반적인 플라스틱 주름관은, 첨부도면 도 1에 도시된 것처럼 고밀도 폴리에틸렌 수지 또는 폴리염화비닐 수지와 같은 단일 소재로 구성된 것이 주종을 이루고 있고, 등록실용신안 제0336646호와 같이 내벽과 외벽을 가진 이중벽관(도 2 참조)이 사용되고 있기도 하다.Conventional plastic corrugated pipe is composed mainly of a single material, such as high density polyethylene resin or polyvinyl chloride resin, as shown in Figure 1 of the accompanying drawings, and the double wall tube having an inner wall and an outer wall, as registered Utility Model No. 036646 (See Fig. 2) is also used.

그런데, 고밀도 폴리에틸렌과 같은 단일 소재로 구성된 종래의 주름관은 복 원력이 부족하다는 단점이 있으며, 균열이 자주 발생하여 발생된 균열을 통해 관의 내부로 이물질이 유입되거나, 관 내부의 유체가 누출되는 문제를 일으키게 된다. 더욱이, 고밀도 폴리에틸렌은 충격과 화기에 취약하기 때문에 고밀도 폴리에틸렌 관의 경우 내구성이 떨어지는 문제가 있다.However, the conventional corrugated pipe composed of a single material such as high density polyethylene has a disadvantage in that the restoring force is insufficient, and foreign matter flows into the inside of the pipe through the crack caused by frequent cracks, or the fluid inside the pipe leaks. Will cause. Moreover, high density polyethylene has a problem of poor durability in high density polyethylene tubes because it is vulnerable to impact and fire.

또한, 상기 등록실용신안 제0336646호와 같은 종래 이중벽관의 경우, 내벽(1)과 외벽(2)을 구성하는 관의 소재가 동일한 소재로 이루어져 있을 뿐만 아니라, 외벽(2)을 구성하는 관은 주름관으로 형성되어 있지만 내벽(1)을 구성하는 관은 직관으로 형성되어 있기 때문에 내벽(1)과 외벽(2)이 완전히 일체화를 이루지 못하여 사용 중에 내벽(1)과 외벽(2)이 서로 분리되는 문제가 있고, 특히 가요성이 충분히 발휘되지 못하는 문제가 있다.In addition, in the case of the conventional double wall tube such as the registered utility model No. 036646, the material of the tube constituting the inner wall 1 and the outer wall 2 is not only made of the same material, but also the tube constituting the outer wall 2 The inner wall 1 and the outer wall 2 are separated from each other during use because the inner wall 1 and the outer wall 2 are not completely integrated because the pipes constituting the inner wall 1 are formed of corrugated pipes. There is a problem, and in particular, there is a problem that flexibility is not sufficiently exhibited.

본 발명은 전술한 바와 같은 문제점을 개선하기 위해 개발된 것으로서, 그 목적은, 복원력이 우수하고, 균열 발생으로 인한 이물질의 틈입이나 관 내부 유체의 누출을 방지할 수 있으며, 내벽과 외벽이 견고하게 일체화를 유지할 수 있는 이중벽 주름관을 제공하는 데에 있다.The present invention was developed to improve the above-mentioned problems, the purpose of which is excellent in resilience, can prevent the entry of foreign matters or leakage of the fluid inside the pipe due to the occurrence of cracks, the inner wall and outer wall firmly It is to provide a double wall corrugated pipe that can maintain integration.

위와 같은 목적을 달성하기 위한 본 발명은, 고밀도 폴리에틸렌 수지로 이루어지며 산과 골로 구성된 주름이 길이방향을 따라 형성되어 있는 내벽과, 난연성 폴리염화비닐 수지로 이루어지며 상기 내벽의 산 및 골과 일치하는 산과 골로 구성된 주름이 형성되어 상기 내벽의 외주면에 일체로 형합되도록 부착되는 외벽을 포함하여 이루어진 이중벽 주름관을 제공한다.The present invention for achieving the above object is made of a high-density polyethylene resin, the inner wall is made of a corrugated acid and bone formed along the longitudinal direction, and made of a flame-retardant polyvinyl chloride resin and the acid and the valley of the inner wall It provides a double-wall corrugated pipe made of a corrugated bone is formed, including an outer wall attached to be integrally formed with the outer peripheral surface of the inner wall.

특히, 상기 내벽과 외벽에 형성된 골의 깊이는 일정 간격마다 이중벽 주름관의 관경 중심을 기준으로 단차를 갖도록 형성될 수 있다.In particular, the depth of the bone formed on the inner wall and the outer wall may be formed to have a step with respect to the center of the diameter of the double wall corrugated pipe at regular intervals.

상기와 같이 구성된 본 발명의 이중벽 주름관은 내벽과 외벽의 주름이 서로 형합되는 구조로 견고하게 일체화를 이루고 있음과 아울러 내벽과 외벽의 소재에 있어서 고밀도 폴리에틸렌 수지와 폴리염화비닐 수지의 장/단점이 서로 보완되도록 구성됨으로써, 유체 이송관과 전선 보호관 등으로서의 적합성과 복원력 및 내구성 등이 매우 우수한 효과가 있다.The double wall corrugated pipe of the present invention configured as described above has a structure in which the inner wall and the outer wall corrugate are solidly integrated with each other, and the advantages and disadvantages of the high density polyethylene resin and the polyvinyl chloride resin in the inner and outer wall materials By being configured to be complemented, the fluid transfer tube and the wire protection tube and the like, the resilience and durability are very excellent effects.

또한, 상기 내벽과 외벽에 형성된 골의 깊이가 일정 간격마다 관경 중심선을 기준으로 단차를 갖도록 형성되는 경우, 내벽에 광케이블 등을 삽입할 때의 접촉 마찰이 최소화되므로 작업성이 우수하게 되고 내벽의 손상을 최소화할 수 있으며, 단차로 인해 형성된 공간으로 열의 발산이 이루어지게 되므로, 전선 보호관 등에의 사용성이 향상되는 효과가 있다.In addition, when the depth of the bone formed on the inner wall and the outer wall is formed to have a step with respect to the center diameter line at regular intervals, the contact friction when inserting the optical cable, etc. into the inner wall is minimized, so the workability is excellent and the inner wall is damaged. Since it is possible to minimize the heat dissipation to the space formed due to the step, there is an effect of improving the usability of the wire protective tube.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다. 그러나, 이하의 실시예는 이 기술분야에서 통상의 지식을 가진 자에게 본 발명이 충분히 이해되도록 제공되는 것으로서 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 다음에 기술되는 실시예에 한정되는 것은 아니다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. It doesn't happen.

도 3은 본 발명에 따른 이중벽 주름관의 제1실시예를 나타낸 사시도 및 부분 단면 확대도이다.3 is a perspective view and a partial cross-sectional enlarged view showing a first embodiment of a double wall corrugated pipe according to the present invention.

도 3에 도시된 바와 같이, 본 발명에 따른 제1실시예의 이중벽 주름관은 내벽(10)을 구성하는 부분과 외벽(20)을 구성하는 부분에 의해 이중벽을 갖게 되며, 내벽(10)과 외벽(20) 모두 주름진 구조로 이루어져 있다.As shown in FIG. 3, the double wall corrugated pipe of the first embodiment according to the present invention has a double wall by a portion constituting the inner wall 10 and a portion constituting the outer wall 20, and the inner wall 10 and the outer wall ( 20) All have a corrugated structure.

즉, 내벽(10)은 산(11)과 골(12)로 구성된 주름이 주름관의 길이방향을 따라 형성되어 있으며, 외벽(20) 역시 산(21)과 골(22)로 구성된 주름이 주름관의 길이방향을 따라 형성되어 있다.That is, the inner wall 10 is formed of a corrugated tube formed with a peak 11 and a valley 12 along the longitudinal direction of the corrugated pipe, and the outer wall 20 is also formed with a corrugated tube formed with a peak 21 and a valley 22. It is formed along the longitudinal direction.

특히, 외벽(20)의 산(21)과 골(22)은 내벽(10)의 산(11)과 골(22)에 완전히 일치하는 모양과 간격으로 형성됨으로써, 내벽(10)의 외주면에 외벽(20)이 일체로 형합(형(形合)된다.In particular, the peaks 21 and the valleys 22 of the outer wall 20 are formed in a shape and a gap that completely coincide with the peaks 11 and the valleys 22 of the inner wall 10, thereby forming an outer wall on the outer circumferential surface of the inner wall 10. (20) is integrally molded (formed).

또한, 내벽(10)은 내약품성과 전기적 특성이 우수하고 경질(硬質)의 수지인 고밀도 폴리에틸렌(HDPE : High Density Polyethylene) 수지로 이루어져 있고, 외벽(20)은 복원력이 우수하고 연질(軟質)인 난연성의 폴리염화비닐(PVC : Polyvinyl Chloride) 수지로 이루어져 있다. 이러한 내벽(10)과 외벽(20)은 산(11,21)과 골(12,22)이 형합되는 상태로 폴리염화비닐 접착제 등으로 접착됨으로써 하나의 이중벽 주름관으로 일체화된다.In addition, the inner wall 10 is made of high-density polyethylene (HDPE) resin, which is excellent in chemical resistance and electrical properties, and is a hard resin, and the outer wall 20 is excellent in resilience and soft. It consists of flame retardant polyvinyl chloride (PVC). The inner wall 10 and the outer wall 20 are integrated into one double wall corrugated pipe by being bonded with a polyvinyl chloride adhesive or the like while the acids 11 and 21 and the valleys 12 and 22 are joined together.

이와 같이 구성된 본 실시예의 이중벽 주름관은, 내벽(10)이 내약품성과 전기절연성이 우수한 고밀도 폴리에틸렌 수지로 이루어져 있기 때문에 유체 이송관이나 전선 보호관 등으로 사용되는 데에 적합성을 갖게 된다. 또한, 외벽(20)은 복원력이 우수하고 난연성을 지닌 연질의 폴리염화비닐 수지로 이루어져 있으므로 내벽(10)을 구성하는 고밀도 폴리에틸렌 수지의 내충격성이 약하고 복원력과 난연성이 떨어지는 단점을 보완하게 된다.The double wall corrugated pipe of the present embodiment configured as described above is suitable for being used as a fluid transfer tube, an electric wire protective tube, or the like because the inner wall 10 is made of a high density polyethylene resin having excellent chemical resistance and electrical insulation. In addition, since the outer wall 20 is made of a soft polyvinyl chloride resin having excellent restoring force and flame retardancy, the impact resistance of the high-density polyethylene resin constituting the inner wall 10 is weak and the restoring force and flame retardancy are compensated for.

따라서, 본 발명에 따른 이중벽 주름관의 사용시 고밀도 폴리에틸렌 수지로 이루어진 내벽(10) 부분에 균열이 발생할 경우, 폴리염화비닐 수지로 이루어진 외벽(20)이 내벽(10)을 감싸고 있기 때문에, 내벽(10) 내부로 이물질이 틈입하거나 내벽(10) 내부의 유체 또는 내용물이 누출되는 것을 방지할 수 있게 된다. 또한, 폴리염화비닐 수지로 이루어진 외벽(20)은 연질이면서 복원력과 가요성이 우수하기 때문에 이중벽 주름관의 시공이 매우 편리하게 이루어질 수가 있다. 더욱이, 내벽(10)과 외벽(20)의 산(11,21)과 골(12,22)이 형합되는 상태로 일체화되어 있으므로, 장기간 사용 중에 내벽(1)과 외벽(2)이 서로 분리되는 문제 없이 양호한 내구성을 갖게 된다.Therefore, when a crack occurs in a portion of the inner wall 10 made of a high density polyethylene resin when using the double-wall corrugated pipe according to the present invention, since the outer wall 20 made of polyvinyl chloride resin surrounds the inner wall 10, the inner wall 10 It is possible to prevent foreign matter from entering into the inside or leaking of the fluid or contents inside the inner wall 10. In addition, since the outer wall 20 made of polyvinyl chloride resin is soft and has excellent restoring force and flexibility, the construction of the double wall corrugated pipe can be made very convenient. Furthermore, since the peaks 11 and 21 and the valleys 12 and 22 of the inner wall 10 and the outer wall 20 are integrated together, the inner wall 1 and the outer wall 2 are separated from each other during long-term use. Good durability without problems.

한편, 도 4는 본 발명에 따른 이중벽 주름관의 제2실시예를 나타낸 사시도 및 부분 단면 확대도이다.On the other hand, Figure 4 is a perspective view and a partial cross-sectional enlarged view showing a second embodiment of the double-wall corrugated pipe according to the present invention.

본 실시예의 이중벽 주름관은 전술한 실시예와 마찬가지로 산(101,201)과 골(102,202)로 구성된 주름이 서로 형합되는 구조로 형성되어 서로 일체로 부착되는 내벽(100)과 외벽(200)으로 이루어져 있다. 또한, 내벽(100)은 고밀도 폴리에틸렌 수지로 이루어지고, 외벽(200)은 난연성의 폴리염화비닐 수지로 이루어져 있다.The double wall corrugated pipe of the present embodiment is formed of a structure in which the corrugations composed of the peaks 101 and 201 and the valleys 102 and 202 are combined with each other and is formed of an inner wall 100 and an outer wall 200 which are integrally attached to each other. In addition, the inner wall 100 is made of a high density polyethylene resin, the outer wall 200 is made of a flame-retardant polyvinyl chloride resin.

특히, 본 실시예의 이중벽 주름관은, 내벽(100)과 외벽(200)에 형성된 골(102,202)의 깊이가 일정 간격마다 이중벽 주름관의 관경 중심을 기준으로 단차(d)를 갖도록 형성된 점에 특징이 있다.In particular, the double wall corrugated pipe of the present embodiment is characterized in that the depths of the valleys 102 and 202 formed in the inner wall 100 and the outer wall 200 have a step d with respect to the center of the diameter of the double wall corrugated pipe at regular intervals. .

이렇게 골(102,202)의 깊이가 일정 간격마다 부분적으로 상이하게 형성되어 있기 때문에, 예를 들어 이중벽 주름관이 전선이나 광케이블 등을 내장하는 전선 보호관으로 사용되는 경우에 전선 또는 광케이블을 전선 보호관에 삽입할 때 전선 보호관(이중벽 주름관)의 내벽(100)과 전선(또는 광케이블) 간의 접촉 마찰을 최소 화할 수 있게 되므로, 삽입 작업이 매우 쉽게 이루어질 수 있을 뿐만 아니라 관 내벽(100)의 손상을 최소화할 수 있게 된다. 또한, 상기 단차(d)로 인해 형성되는 공간을 통해 통풍성이 향상되므로, 이중벽 주름관 내부에서 발생하는 열을 발산시키는 데에도 도움이 된다.Since the depths of the valleys 102 and 202 are partially different at regular intervals, for example, when the double wall corrugated pipe is used as an electric wire protection tube for embedding electric wires or optical cables, the electric wire or optical cable is inserted into the electric wire protecting tube. Since the contact friction between the inner wall 100 of the wire protection tube (double wall corrugated pipe) and the wire (or optical cable) can be minimized, the insertion work can be made very easy and the damage of the inner wall of the pipe 100 can be minimized. . In addition, since the ventilation is improved through the space formed by the step (d), it is also helpful in dissipating heat generated inside the double wall corrugated pipe.

이상에서는 본 발명을 바람직한 실시예에 의거하여 설명하였으나, 본 발명은 상기 실시예에 한정되는 것은 아니며, 본 발명의 기술적 사상의 범위 내에서 이 기술분야에서 통상의 지식을 가진 자에 의하여 여러 가지 변형이 가능하다.In the above described the present invention based on the preferred embodiment, the present invention is not limited to the above embodiment, various modifications by those skilled in the art within the scope of the technical idea of the present invention This is possible.

도 1은 단일 소재로 구성된 종래의 일반적인 플라스틱 주름관을 나타낸 단면도이다.1 is a cross-sectional view showing a conventional plastic corrugated pipe made of a single material.

도 2는 등록실용신안 제0336646호에 예시된 종래의 이중벽관을 나타낸 단면도이다.2 is a cross-sectional view showing a conventional double wall pipe exemplified in Registered Utility Model No. 0336646.

도 3은 본 발명에 따른 이중벽 주름관의 제1실시예를 나타낸 사시도 및 부분 단면 확대도이다.3 is a perspective view and a partial cross-sectional enlarged view showing a first embodiment of a double wall corrugated pipe according to the present invention.

도 4는 본 발명에 따른 이중벽 주름관의 제2실시예를 나타낸 사시도 및 부분 단면 확대도이다.Figure 4 is a perspective view and a partial cross-sectional enlarged view showing a second embodiment of the double wall corrugated pipe according to the present invention.

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

10,100 : 내벽 11,21,101,201 : 산10,100: inner wall 11,21,101,201: mountain

12,22,102,202 : 골 20,200 : 외벽12,22,102,202: Goal 20,200: Outer wall

d : 단차 d: step

Claims (2)

고밀도 폴리에틸렌 수지로 이루어지며, 산과 골로 구성된 주름이 길이방향을 따라 형성되어 있는 내벽; 및An inner wall made of a high-density polyethylene resin and having wrinkles composed of acids and valleys formed along the length direction; And 난연성 폴리염화비닐 수지로 이루어지며, 상기 내벽의 산 및 골과 일치하는 산과 골로 구성된 주름이 형성되어 상기 내벽의 외주면에 일체로 형합되도록 부착되는 외벽을 포함하여 이루어진 이중벽 주름관.A double-wall corrugated pipe made of a flame-retardant polyvinyl chloride resin, and including an outer wall formed with a corrugation formed with an acid and a valley matching the acid and the valley of the inner wall to be integrally formed on the outer circumferential surface of the inner wall. 제1항에 있어서,The method of claim 1, 상기 내벽과 외벽에 형성된 골의 깊이는 일정 간격마다 이중벽 주름관의 관경 중심을 기준으로 단차를 갖도록 형성된 것을 특징으로 하는 이중벽 주름관.The depth of the bone formed in the inner wall and the outer wall is a double wall corrugated pipe, characterized in that it has a step with respect to the center of the diameter of the double wall corrugated pipe at regular intervals.
KR1020090087928A 2009-09-17 2009-09-17 Corrugated pipe having double wall KR101169600B1 (en)

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KR101445558B1 (en) * 2014-07-09 2014-09-29 김영권 Flexible conduit tube
KR101599247B1 (en) * 2015-02-03 2016-03-14 (주)유니엠 Eco Heating System
KR20190134051A (en) * 2018-05-24 2019-12-04 한국전력공사 Underground corrugated pipe and connecting method thereof

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KR20170017395A (en) 2015-08-06 2017-02-15 황동기 A protection pipe of cable

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JP3678168B2 (en) * 2001-05-08 2005-08-03 住友電装株式会社 Cracked corrugated tube for wire harness exterior
KR100519439B1 (en) * 2003-09-09 2005-10-07 하이피이산업 (주) b

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101445558B1 (en) * 2014-07-09 2014-09-29 김영권 Flexible conduit tube
KR101599247B1 (en) * 2015-02-03 2016-03-14 (주)유니엠 Eco Heating System
KR20190134051A (en) * 2018-05-24 2019-12-04 한국전력공사 Underground corrugated pipe and connecting method thereof

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