KR0137602Y1 - Corrugated pipe - Google Patents
Corrugated pipe Download PDFInfo
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- KR0137602Y1 KR0137602Y1 KR2019950041339U KR19950041339U KR0137602Y1 KR 0137602 Y1 KR0137602 Y1 KR 0137602Y1 KR 2019950041339 U KR2019950041339 U KR 2019950041339U KR 19950041339 U KR19950041339 U KR 19950041339U KR 0137602 Y1 KR0137602 Y1 KR 0137602Y1
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- wall
- synthetic resin
- pressure
- heat
- pipe
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Classifications
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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
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
[목적][purpose]
합성수지제 코러게이트관의 단점인 내외압, 즉 내토압강도를 개선한 지중 매설용 내압 합성수지관을 제공하기 위한 것이다.It is to provide a pressure-resistant synthetic resin pipe for underground embedding, which improved the internal and external pressure, that is, the earth pressure resistance, which is a disadvantage of the synthetic corrugated pipe.
[구성][Configuration]
합성수지띠를 나선상으로 권회하고 각 벽의 이음새끼리 열융합시켜 이룬 내벽(11)과 외벽(12) 사이에 T형 또는 工형 단면을 가진 고강도 합성수지제 보강지지대(13)를 삽입하고, 그 종부(13a)의 끝 또는 내측 횡부(13c)는 내벽(11)의 외주면에 박히도록 열융착하고 횡부(13b)는 외벽(12)의 내주면에 밀착시켜 열융착시킨 지중 매설용 내압 합성수지관(코러게이트관)이다.A high strength synthetic resin reinforcement support 13 having a T or industrial cross section is inserted between the inner wall 11 and the outer wall 12 formed by winding the synthetic resin strip spirally and heat-sealing the joints of each wall, and the end portion thereof ( 13a) end or inner horizontal portion (13c) is heat-sealed so as to be embedded in the outer peripheral surface of the inner wall 11, the horizontal portion 13b is a pressure-resistant synthetic resin tube for underground embedding heat-sealed in close contact with the inner peripheral surface of the outer wall (12) )to be.
Description
제1도는 본 고안의 일실시예에 의한 내압 합성수지관의 부분절결 측면도.1 is a partial cutaway side view of the pressure-resistant synthetic resin tube according to an embodiment of the present invention.
제2도는 보강지지대의 사시도.2 is a perspective view of the reinforcing support.
제3도는 본 고안의 다른 실시형태의 내압 합성수지관의 일부 절개 정면도.3 is a partial cutaway front view of the pressure-resistant synthetic resin tube of another embodiment of the present invention.
제4도는 그 보강지지대의 단면도.4 is a cross-sectional view of the reinforcing support.
제5도는 내압 합성수지관의 일부 확대단면도.5 is an enlarged cross-sectional view of a part of the pressure-resistant synthetic resin pipe.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
11 : 내벽 12 : 외벽11: inner wall 12: outer wall
13 : 보강지지대 13a : 뿌리13: reinforcing support 13a: root
13b : 횡부 13c : 내측 횡부13b: side part 13c: inner side part
본 고안은 지중에 매설하는 지중 매설용 내압 합성수지관에 관한 것이며, 특히 합성수지제 코러게이트관의 내토압강도를 개선한 지중 매설용 내압(耐壓) 합성수지관에 관한 것이다.The present invention relates to underground pressure synthetic resin pipes for underground embedding, and more particularly, to underground pressure synthetic resin pipes for improving the earth pressure strength of synthetic resin corrugated pipes.
나선형 합성수지관의 전형적인 형태는 제5도에 예시한 바와 같이 폐쇄형 공간(a)이 형성된 돌출부(b)의 정부와 이 정부에 연결된 양 측벽(c)이 일체로 된 수지띠를 나선상으로 말아붙여 내벽(1)을 이루고 이 내벽(1)의 돌출부(b) 정부에 평수지띠를 같은 나선방향으로 감아붙인 것이다.The typical shape of the spiral synthetic resin tube is a spiral roll of resin bands in which the government of the protrusion (b) in which the enclosed space (a) is formed and the sidewalls (c) connected to the government are integrally wound as shown in FIG. The inner wall 1 is formed, and the plain resin strip is wound in the same spiral direction to the protrusion part b of the inner wall 1.
이런 류의 지중 매설용 합성수지관은 폴리에틸렌이 그 원료이며, 지중에 매설한 후 외압, 즉 토압에 취약한 부분(d)이 있다. 이 점을 보완하기 위한 노력의 일환이 합성수지층 내부에 철제 보강심재를 넣어 강도를 보강한 내압 합성수지관이다.In this type of underground embedding synthetic resin pipe, polyethylene is a raw material, and there is a part (d) which is vulnerable to external pressure, that is, earth pressure after embedding in the ground. Part of the effort to supplement this point is the pressure-resistant synthetic resin pipe reinforced with strength by putting steel reinforcement core inside the resin layer.
그러나 이 합성수지관은 외압강도는 개선되었지만 유연성이 뒤지고 무겁다. 경시적으로는 철제 보강심재가 부식되어 시공초기의 외압강도를 지속적으로 유지하기 곤란하고, 철제 보강재를 접착제로 접합하거나 합성수지층의 측벽 내부에서 철제 보강심재를 걸어 물리는 방법으로 연결하므로서 합성수지층과 철제 보강심재의 분리가 불가능하므로 생산과정에서 발생한 불량품이나 사용후 수거한 폐품에 대한 재활용이 아주 곤란하였다. 이 점은 환경보호와 자원절약적 관점에서 결코 바람직하지 못하다.However, this composite pipe is less flexible and heavy, although its external pressure strength is improved. Over time, the steel reinforcing core is corroded, making it difficult to continuously maintain the external pressure strength at the beginning of the construction, and the steel reinforcing core is connected with a method of bonding the steel reinforcement with an adhesive or by hanging the steel reinforcing core inside the side wall of the synthetic resin layer. Since it is impossible to separate the reinforcing core material, it was very difficult to recycle the defective products generated during the production process or the waste collected after use. This is never desirable in terms of environmental protection and resource conservation.
일본국 특개 평7-55068호는 T형 리브 사이에 공간에 W형 보강재를 삽입하여 보강재의 양단이 상기 리브의 머리부 밑에 턱걸림시켜 버팀목역할을 하도록 하므로서 노휴된 기설관을 갱생시킬 수 있게 한 것으로서, 리브와 보강재가 융착되지 않고 리브의 머리부에 박혀서 일체감을 갖지도 않기 때문에 코러게이트관이 뒤틀리거나 휨에 대한 버팀력이 약화될 개연성이 많고, 향심방향으로 작용하는 토압에 대한 내압강도도 낮다.Japanese Patent Application Laid-Open No. 7-55068 inserts a W-shaped reinforcement into the space between the T-shaped ribs so that both ends of the reinforcing material can be hung under the head of the ribs to serve as a support for rehabilitation of the closed existing pipe. Since the rib and the reinforcement are not fused and do not have a sense of unity because they are embedded in the head of the rib, there is a high probability that the corrugated pipe is warped or the support force against bending is weakened, and the pressure resistance against earth pressure acting in the center direction is also high. low.
이런 제반 문제점을 고려하여, 본 고안은 내구성과 재활용이 가능한 지중매설용 내압 합성수지관을 제공하는 것을 목적으로 한다.In view of these various problems, the present invention aims to provide a pressure-resistant synthetic resin pipe for underground embedding that is durable and recyclable.
경질 폴리에틸렌의 영율(E)이 80-100kg/mm2인데 대하여 폴리프로필렌의 영율(E)은 320-500kg/mm2로 폴리프로필렌이 경질 폴리에틸렌에 비해 4-5배 정도 강도가 높다.The Young's modulus (E) of hard polyethylene is 80-100kg / mm 2 , whereas the Young's modulus (E) of polypropylene is 320-500kg / mm 2 , and polypropylene is 4-5 times stronger than hard polyethylene.
본 고안자는 연질밴드 제품과 같이 폴리프로필렌과 폴리에틸렌을 소정의 비율로 혼합하면 재활용이 가능하다는 점에 착안하여, 합성수지관 특유의 유연성은 그대로 살리면서도 합성수지관의 단점으로 지적돼온 외압강도의 취약점을 보강하여 지중 매설후 높은 토압에도 장기간 능히 견딜 수 있는 강력한 내압성을 가진 고강도 합성수지제 보강지지대로 설계 제조하고, 이것을 내, 외벽 사이에 보강재로 적용함으로써 불량품 또는 페품의 재활용가능성을 부여하고 동시에 내구성도 일층 강화한 지중 매설용 내압 합성수지관을 제공한다.The inventors note that polypropylene and polyethylene can be recycled by mixing in a predetermined ratio, such as soft band products, while reinforcing the weakness of external pressure strength, which has been pointed out as a disadvantage of synthetic resin pipe while maintaining the flexibility of plastic pipe. Designed and manufactured with high strength synthetic resin reinforcement support that can withstand high earth pressure for a long time after being buried in the ground To provide underground pressure-resistant synthetic resin pipes.
이하, 바람직한 실시예를 토대로 작성한 제1도 내지 제4도를 참조하여 더욱 구체적으로 본 고안을 설명한다.Hereinafter, the present invention will be described in more detail with reference to FIGS. 1 to 4 created based on the preferred embodiment.
제1, 2도는 본 고안의 일실시예에 의한 것으로, 압출한 수지띠를 압출과 동시에 나선형으로 감아 융착시킨 내벽(11)과 외벽(12)과의 사이에 T형 단면을 가진 고강도 합성수지제 보강지지대(13)를 그들과 같은 나선방향으로 감아 융착시켜 내벽(11)과 외벽(12) 및 보강지지대(13)가 일체감을 갖도록 형성한 지중 매설용 내압 합성수지관이다.1 and 2 are according to one embodiment of the present invention, a high-strength synthetic resin reinforcement having a T-shaped cross section between the inner wall 11 and the outer wall 12 spirally wound and fused together with the extruded resin band. It is a pressure-resistant synthetic resin pipe for underground embedding, in which the support 13 is wound in the same spiral direction and fused to form the inner wall 11, the outer wall 12, and the reinforcing support 13 to have a sense of unity.
상기 T형 보강지지대(13)의 종부(13a)의 끝은 내벽(11)의 외주면에 박혀 붙고 그 횡부(13b)는 외벽(12)의 내주면에 밀착된 채로 거기에 융착된다.The end of the longitudinal portion 13a of the T-shaped reinforcement support 13 is stuck to the outer circumferential surface of the inner wall 11 and the transverse portion 13b is fused thereon while being in close contact with the inner circumferential surface of the outer wall 12.
종부(13a)는 단면적이 작으므로 내벽(11)에서 지탱하는 힘이 약할 것으로 생각되지만 내벽(11)의 살 일부가 종부(13a)의 양축면쪽으로 보톰하게 부풀어올라 보강살(11a)을 형성하게 되므로서 지지력을 보강한다.Since the end portion 13a has a small cross-sectional area, the supporting force of the inner wall 11 is considered to be weak, but a portion of the flesh of the inner wall 11 is inflated toward both axis surfaces of the longitudinal portion 13a to form the reinforcement 11a. To reinforce the bearing capacity.
또 횡부(13b)는 외벽(12)의 벽두께를 늘려주는 한편 상대적으로 외압강도가 낮은 수지띠간의 간격(s)을 좁혀주므로 외벽(12) 전체의 평균외압강도는 높아진다. 따라서, 이 합성수지관을 지중에 매설한 경우 지반의 부동침하나 합성수지관의 측벽에 가해지는 충격에도 좀체로 끄떡하지 않고 효율적으로 대응하게 된다.Moreover, since the horizontal part 13b increases the wall thickness of the outer wall 12 and narrows the space | interval s between resin bands with relatively low external pressure strength, the average external pressure strength of the outer wall 12 whole becomes high. Therefore, when the synthetic resin tube is buried in the ground, it is possible to efficiently cope with the impact of floating on the ground or impact on the side wall of the synthetic resin tube.
제3, 4도는 본 고안의 다른 실시예에 의한 지중 매설용 내압 합성수지관에 관한 것으로, T형 보강지지대(13)의 종부(13a)에 짧은 내측 횡부(13c)가 일체상으로 된 工형으로 형성하여 내, 외벽(11, 12) 사이에 삽입하여 열융착시킨 지중 매설용 합성수지관이다.3 and 4 are related to the underground pressure-resistant synthetic resin pipe according to another embodiment of the present invention, which is an industrial type in which the short inner transverse portion 13c is integrally formed on the longitudinal portion 13a of the T-shaped reinforcement support 13. It is a synthetic resin pipe for underground embedding which is formed and inserted between the inner and outer walls 11 and 12 and heat-sealed.
내측 횡부(13c)에 의하여 내벽(11)상에서의 지지력이 보강되는 동시에 내벽(11)의 벽두께를 늘려 내압강도를 높이는 역할을 한다. 상기 어느 실시예든간에 보강지지대(13)는 고강도 합성수지제로서, 재활용성 수지로 한다.The supporting force on the inner wall 11 is reinforced by the inner horizontal portion 13c, and at the same time, the wall thickness of the inner wall 11 is increased to increase the pressure resistance. In any of the above embodiments, the reinforcing support 13 is made of a high strength synthetic resin and made of a recyclable resin.
이와같이 구성된 본 고안의 지중 매설용 내압 합성수지관은 일반 합성수지제 내, 외벽(11, 12)사이에 삽입한 합성수지제 T형 또는 工형 보강지지대(13)는 내, 외벽(11, 12)보다도 강도가 월등한 고강도수지제이므로 합성수지관 전체의 평균외압강도가 훨씬 강해진다. 그래서 지중에 매설하더라도 토압에도 끄떡않고 버텨낼 수 있고, 관의 단부쪽에서 작용하는 측압에도 능히 견딘다.The underground pressure-resistant synthetic resin pipe for underground construction according to the present invention configured as described above has a strength greater than that of the inner and outer walls 11 and 12 of the synthetic resin T-type or industrial reinforcement support 13 inserted between the outer walls 11 and 12. Since it is a superior high strength resin, the average external pressure strength of the whole synthetic resin pipe is much stronger. Therefore, even if buried in the ground, it can withstand earth pressure, and can withstand the side pressure acting on the end of the pipe.
제5도에 예시한 기존의 코러게이트관과 비교할 때, 돌출부의 한쪽 측벽에 상당하는 양의 원료가 줄어들어 원가절감효과도 제공된다.Compared with the conventional corrugated pipe illustrated in FIG. 5, the amount of raw material corresponding to one side wall of the protrusion is reduced, thereby providing a cost reduction effect.
그 뿐 아니라 종래의 코러게이트관은 돌출부간에 남는 비교적 넓은 공간을 합성수지띠로 열융착하기 때문에 생산당시 냉각 후에 일어나는 합성수지 수축률에 따른 수축이 커 경시적으로 이 부분에서 갈라지고 심지어 터지는 경향이 농후하였으나, 본 고안에서는 특히 보강지지대의 외측 형부가 외벽의 수축율을 감소시키는 작용을 하므로 냉각 후에 발생하는 갈라짐현상과 토압 작용시 터짐현상마저도 말끔히 사라진다.In addition, the conventional corrugated pipe heat-sealed the relatively large space remaining between the protrusions with a synthetic resin strip, so that the shrinkage caused by the shrinkage of the synthetic resin that occurs after cooling at the time of production is large, so it tends to crack and even burst in this part over time. In particular, since the outer mold of the reinforcing support reduces the shrinkage of the outer wall, the cracking phenomenon occurring after cooling and the bursting phenomenon during earth pressure are also eliminated.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950041339U KR0137602Y1 (en) | 1995-12-14 | 1995-12-14 | Corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019950041339U KR0137602Y1 (en) | 1995-12-14 | 1995-12-14 | Corrugated pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970043491U KR970043491U (en) | 1997-07-31 |
| KR0137602Y1 true KR0137602Y1 (en) | 1999-02-18 |
Family
ID=19434112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019950041339U KR0137602Y1 (en) | 1995-12-14 | 1995-12-14 | Corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0137602Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888216B1 (en) * | 2002-06-28 | 2009-03-12 | 주식회사 프라코 | Distributing pipe with heat resisting and high strength and producing method thereof |
-
1995
- 1995-12-14 KR KR2019950041339U patent/KR0137602Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888216B1 (en) * | 2002-06-28 | 2009-03-12 | 주식회사 프라코 | Distributing pipe with heat resisting and high strength and producing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970043491U (en) | 1997-07-31 |
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