KR100800280B1 - Jointing and fixing tool of steel ribbed pipes for building - Google Patents

Jointing and fixing tool of steel ribbed pipes for building Download PDF

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Publication number
KR100800280B1
KR100800280B1 KR1020070050085A KR20070050085A KR100800280B1 KR 100800280 B1 KR100800280 B1 KR 100800280B1 KR 1020070050085 A KR1020070050085 A KR 1020070050085A KR 20070050085 A KR20070050085 A KR 20070050085A KR 100800280 B1 KR100800280 B1 KR 100800280B1
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KR
South Korea
Prior art keywords
corrugated steel
steel pipe
cross
cylinder body
cylindrical body
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KR1020070050085A
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Korean (ko)
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서상로
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서상로
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Priority to KR1020070050085A priority Critical patent/KR100800280B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • 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
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/26—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
    • 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
    • F16L9/02—Rigid pipes of metal
    • F16L9/06—Corrugated pipes

Abstract

A corrugated steel pipe connecting and fixing device is provided to perform maintenance work easily and to increase constructability by connecting corrugated steel pipes strongly not to be separated by external impact. A corrugated steel pipe connecting and fixing device for connecting and fixing corrugated steel pipes in a longitudinal direction to extend the length of corrugated steel pipes comprises a cylinder body(10) inserted to the inner circumferential surface of a corrugated steel pipe(40) to support the corrugated steel pipe and provided with a cross-shaped long hole(11) at the inside and many long holes(12) at the circumference of the cross-shaped long bar, a cross bar(20) inserted to the cross-shaped long hole at the center of the cylinder body and connected with another cylinder body to be extended in a longitudinal direction, and many connecting rods(30) inserted to the long holes at the circumference of the cylinder body to connect another cylinder body to support the cylinder body connected strongly against external impact.

Description

건축용 파형강관 연결 고정구{Jointing and fixing tool of steel ribbed pipes for building}Jointing and fixing tool of steel ribbed pipes for building}

도 1은 본 발명 실시 예인 건축용 파형강관 연결 고정구의 시공모습을 보인 사시도, 1 is a perspective view showing the construction of the corrugated steel pipe connection fixture for construction of the present invention embodiment;

도 2는 본 발명 실시 예인 건축용 파형강관 연결 고정구의 체결모습을 보인 분리 사시도, Figure 2 is an exploded perspective view showing a fastening pattern of the construction of the corrugated steel pipe connection fixture according to an embodiment of the present invention,

도 3은 본 발명 실시 예인 건축용 파형강관 연결 고정구의 시공모습을 보인 정면도, Figure 3 is a front view showing the construction of the corrugated steel pipe connection fixture for construction of an embodiment of the present invention,

도 4는 본 발명 실시 예인 건축용 파형강관 연결 고정구의 시공모습을 보인 측단면도.Figure 4 is a side cross-sectional view showing the construction of the corrugated steel pipe connection fixture for construction of the present invention embodiment.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 원기둥체 11 : 십자형장공10: cylindrical body 11: crosshair

12 : 장공 20 : 삽자바12: Jang 20: Shovel

30 : 연결봉체 40 : 파형강관30: connecting rod 40: corrugated steel pipe

본 발명은 건축용 파형강관 연결 고정구에 관한 것으로서, 보다 상세하게는 연결후 분리가 손쉽게 이루어지며, 파손시 유지보수가 손쉽고, 연결되는 파형강관들의 연결에 따른 시공성을 향상시킬 수 있으며, 플랜지의 형성이 필요 없고, 연결후 외부충격에 의해서 쉽게 분리되지 않게 결합력이 완강하여 파형강관의 외주 형상에 관계없이 연결작업에 따른 신뢰성을 보다 높일 수 있는 건축용 파형강관 연결 고정구에 관한 것이다.The present invention relates to a corrugated steel pipe connection fixture for construction, more specifically, easy to remove after connection, easy maintenance in case of breakage, can improve the workability according to the connection of the corrugated steel pipes connected, the formation of a flange It is not necessary, and the connection strength is not so easy to be separated by the external shock after connection to corrugated steel pipe connecting fixture for construction that can increase the reliability according to the connection work regardless of the outer circumferential shape of the corrugated steel pipe.

일반적으로 주름관인 파형강관은 토목 분야에서 오수 및 폐수의 배수, 생활 용수 또는 산업용수의 급수, 건축 분야에서 중공 거푸집이나 건축 슈트로서 널리 채용된다. 또한, 최근에는 배수관 건설시 증가되는 인력난과 비용 및 환경문제에 대한 인식의 증대로 인하여 기존의 콘크리트제 배관의 대체 자재로서 높은 외압강도와 구조적인 안정성, 내구성 경제성 및 시공성이 우수한 배관자재로 주목받고 있다. Corrugated steel pipes, which are generally corrugated pipes, are widely employed as hollow formwork or construction chutes in the field of drainage of sewage and wastewater in civil engineering, water supply of domestic or industrial water, and construction. In addition, recently, due to the increased labor shortages and increased awareness of cost and environmental problems in the construction of drain pipes, it has been attracting attention as an excellent material for piping with excellent external pressure strength, structural stability, durability, economic feasibility, and workability as a substitute for existing concrete piping. have.

이러한 파형강관은 상대적으로 큰 직경과 소정의 길이를 가지는 것으로, 설치현장으로 운반된 후 설치시 별도의 파형강관 연결장치에 의해 연결된다.Such corrugated steel pipe has a relatively large diameter and a predetermined length, and is transported to an installation site and then connected by a separate corrugated steel pipe connecting device when installed.

대한민국 등록 실용신안 제0292305호에는 피복형 파형강관 이음구조가 개시되어 있다. 개시된 파형강관 이음구조는 상기 피복형 파형강관의 내, 외주면 상에 피복된 재질과 동일한 재질로 이루어지고 상기 피복형 파형강관의 양 단부상에 결합되며 전열선을 구비한 암, 수 한 쌍의 플랜지를 구비한다.Korean Utility Model Registration No. 0292305 discloses a corrugated corrugated steel pipe joint structure. The disclosed corrugated steel pipe joint structure is made of the same material as the material coated on the inner and outer circumferential surfaces of the corrugated corrugated steel pipe and is coupled to both ends of the corrugated corrugated steel pipe and has a pair of female and female flanges having heating wires. Equipped.

그러나, 이런 상기 파형강관 연결장치는 플랜지부들의 사이에 접착부재를 개재시킨 상태에서 열압착한 것으로, 연결후 분리가 어려우며, 파손시 유지보수가 어 려운 문제점이 있었다.However, the corrugated steel pipe connection device is a thermocompression bonding in the state of interposing the adhesive member between the flange portion, it is difficult to separate after the connection, there was a problem that difficult maintenance in case of breakage.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 연결후 분리가 손쉽게 이루어지며, 파손시 유지보수가 손쉽고, 연결되는 파형강관들의 연결에 따른 시공성을 향상시킬 수 있으며, 플랜지의 형성이 필요 없고, 연결후 외부충격에 의해서 쉽게 분리되지 않게 결합력이 완강하여 파형강관의 외주 형상에 관계없이 연결작업에 따른 신뢰성을 보다 높일 수 있는 건축용 파형강관 연결 고정구를 제공함에 그 목적이 있다.The present invention is to solve the above problems, easy disconnection after connection, easy maintenance in case of breakage, can improve the workability according to the connection of the corrugated steel pipes connected, there is no need to form a flange, Its purpose is to provide a corrugated steel pipe connecting fixture for construction that can enhance the reliability of the corrugated steel pipe regardless of the outer circumference of the corrugated steel pipe because the joining force is not easily separated by external shock after connecting.

이와 같은 목적을 달성하기 위하여, 본 발명은 파형강관의 내주연에 삽입되는 원형상의 기둥으로 내부에는 십자형장공이 형성되고, 십자형장공의 주변에 다수개의 장공이 형성되어 파형강관의 내주연에서 파형강관을 지지하는 원기둥체와;In order to achieve the above object, the present invention is a circular column inserted into the inner circumference of the corrugated steel pipe cross-shaped holes are formed therein, a plurality of long holes are formed around the cross-shaped holes to form a corrugated steel pipe in the inner circumference of the corrugated steel pipe Cylindrical body supporting the;

십자형상의 바로 상기 원기둥체의 십자형장공에 삽입되어 다른 몸체와 연결고정되는 십자바와;A cross bar inserted into the cross-shaped hole of the cylindrical body and connected to and fixed to another body;

원형봉체로 상기 원기둥체의 장공에 삽입되어 다른 몸체와 연결고정되는 연결봉체를 구비하여 상기 파형강관을 길이방향으로 연결고정하여 길이를 연장시키는 특징이 있다.It is characterized by extending the length by fixing the corrugated steel pipe in the longitudinal direction by having a connecting rod body is inserted into the long hole of the cylindrical body and connected to the other body fixed to the circular rod body.

이하, 본 발명을 첨부된 도면에 의해 보다 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 본 발명 실시 예인 건축용 파형강관 연결 고정구의 시공모습을 보인 사시도이고, 도 2는 본 발명 실시 예인 건축용 파형강관 연결 고정구의 체결모습을 보인 분리 사시도이며, 도 3은 본 발명 실시 예인 건축용 파형강관 연결 고정구의 시공모습을 보인 정면도이고, 도 4는 본 발명 실시 예인 건축용 파형강관 연결 고정구의 시공모습을 보인 측단면도이다.1 is a perspective view showing the construction of the construction of the corrugated steel pipe connection fixture of the embodiment of the present invention, Figure 2 is an exploded perspective view showing a fastening of the construction of the corrugated steel pipe connection fixture of the embodiment of the present invention, Figure 3 is a building waveform of the present invention embodiment Figure 4 is a front view showing the construction of the steel pipe connection fixture, Figure 4 is a side cross-sectional view showing the construction of a corrugated steel pipe connection fixture for construction of an embodiment of the present invention.

참고로 본 발명을 설명함에 있어 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단될 경우에는 그 상세한 설명을 생략하였다.For reference, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof is omitted.

또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운영자의 의도 또는 관례 등에 따라 달라질 수 있다.In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator.

그러므로, 그 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것임은 물론이다.Therefore, the definition should be made based on the contents throughout the specification.

본 발명의 건축용 파형강관 연결 고정구는, 파형강관(40)을 길이방향으로 연결고정하여 파형강관(40)의 길이를 연장시키는 것으로, 파형강관(40)의 내주연에 삽입되는 원기둥체(10)와, 원기둥체(10) 중심부에 삽입되어 연결되는 십자바(20)와, 원기둥체(10) 주변부에 삽입되어 연결되는 다수개의 연결봉체(30)로 구성된다.Corrugated steel pipe connection fixture for building of the present invention, by extending the length of the corrugated steel pipe 40 by fixing the corrugated steel pipe 40 in the longitudinal direction, the cylindrical body 10 is inserted into the inner circumference of the corrugated steel pipe 40 And a cross bar 20 inserted into and connected to the center of the cylindrical body 10, and a plurality of connecting rods 30 inserted and connected to the periphery of the cylindrical body 10.

상기 원기둥체(10)는 파형강관(40)의 내주연에 삽입되어 파형강관(40)의 내주연에서 파형강관(40)을 지지하는 원형상의 기둥으로, 내부에는 십자형장공(11)이 형성되고, 십자형장공(11)의 주변에 다수개의 장공(12)이 길이방향으로 길게 형성된다. The cylindrical body 10 is a circular column inserted into the inner circumference of the corrugated steel pipe 40 to support the corrugated steel pipe 40 at the inner circumference of the corrugated steel pipe 40, and a cross-shaped hole 11 is formed therein. In the periphery of the cruciform long hole 11, a plurality of long holes 12 are formed long in the longitudinal direction.

상기 십자바(20)는 원기둥체(10) 중심부에 삽입되어 연결되는 십자형상의 바로, 상기 원기둥체(10)의 십자형장공(11)에 대응되게 삽입되어 다른 몸체의 원기둥 체(10)와 연결고정되어 길이방향으로 연장된다. The cross bar 20 is a cross-shaped bar that is inserted into and connected to the center of the cylindrical body 10, and is inserted to correspond to the cross-shaped hole (11) of the cylindrical body 10 is fixed to the cylindrical body 10 of the other body And extend in the longitudinal direction.

상기 연결봉체(30)는 원기둥체(10) 주변부에 삽입되어 연결되는 원형봉체로, 상기 원기둥체(10)의 다수개 장공(12)에 각각 삽입되어 다른 몸체의 원기둥체(10)를 연결고정시킴으로써 원기둥체(10)의 연결상태를 외부충격으로부터 완강히 지지한다. The connecting rod 30 is a circular rod inserted into the peripheral portion of the cylindrical body 10, and is inserted into the plurality of long holes 12 of the cylindrical body 10, respectively, and fixed to connect the cylindrical body 10 of the other body. By doing so, the connection state of the cylindrical body 10 is firmly supported from external shock.

이와 같은 본 발명은, 파형강관(40)의 내주연에 원기둥체(10)를 삽입시킨 다음, 이때 원기둥체(10)의 일부는 파형강관(40)의 선단에서 외부로 돌출되도록 삽입시킨 상태에서, 삽입된 원기둥체(10)의 십자형장공(11)에 십자바(20)를 삽입시키고, 다시 원기둥체(10)의 다수개 장공(12)에 연결봉체(30)를 각각 삽입시킨다.In the present invention, the cylindrical body 10 is inserted into the inner circumference of the corrugated steel pipe 40, and then a portion of the cylindrical body 10 is inserted so as to protrude outward from the tip of the corrugated steel pipe 40. The cross bar 20 is inserted into the cross-shaped hole 11 of the inserted cylindrical body 10, and the connecting rods 30 are respectively inserted into the plurality of long holes 12 of the cylindrical body 10.

이 상태에서 다른 파형강관(40)의 선단 내주연에 파형강관(40)에서 돌출된 원기둥체(10)를 삽입시킨 상태에서 다른 파형강관(40)의 내주연에 다시 상기 십자바(20)와 연결봉체(30)가 각각 삽입되는 원기둥체(10)를 삽입시키면서 파형강관(40)의 길이를 필요에 따라 연장시킬 수 있게 된다. 이런 파형강관(40)은 전신주로서 사용할 수도 있음은 물론이다.In this state, while the cylindrical body 10 protruding from the corrugated steel pipe 40 is inserted into the inner periphery of the distal end of the corrugated steel pipe 40, the cross bar 20 and the cross bar 20 are again formed on the inner circumferential edge of the other corrugated steel pipe 40. The length of the corrugated steel pipe 40 can be extended as necessary while inserting the cylindrical body 10 into which the connecting rods 30 are respectively inserted. Of course, the corrugated steel pipe 40 may be used as a telephone pole.

이와 같이, 본 발명은 연결후 분리가 손쉽게 이루어지며, 파손시 유지보수가 손쉽고, 연결되는 파형강관들의 연결에 따른 시공성을 향상시킬 수 있으며, 플랜지의 형성이 필요 없고, 연결후 외부충격에 의해서 쉽게 분리되지 않게 결합력이 완강하여 파형강관의 외주 형상에 관계없이 연결작업에 따른 신뢰성을 보다 높일 수 있는 효과가 있다.As such, the present invention can be easily separated after connection, easy maintenance in case of breakage, can improve the workability according to the connection of the corrugated steel pipes to be connected, do not need the formation of a flange, easy by external shock after connection Coupling force is stiff so as not to be separated, there is an effect that can increase the reliability according to the connection work regardless of the outer circumference of the corrugated steel pipe.

본 발명은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (1)

파형강관의 내주연에 삽입되는 원형상의 기둥으로 내부에는 십자형장공이 형성되고, 십자형장공의 주변에 다수개의 장공이 형성되어 파형강관의 내주연에서 파형강관을 지지하는 원기둥체와;A cylindrical column inserted into an inner circumference of the corrugated steel pipe and having a cross-shaped hole formed therein, and having a plurality of long holes formed around the cross-shaped hole to support the corrugated steel pipe at the inner circumference of the corrugated steel pipe; 십자형상의 바로 상기 원기둥체의 십자형장공에 삽입되어 다른 몸체와 연결고정되는 십자바와;A cross bar inserted into the cross-shaped hole of the cylindrical body and connected to and fixed to another body; 원형봉체로 상기 원기둥체의 장공에 삽입되어 다른 몸체와 연결고정되는 연결봉체를 구비하여 상기 파형강관을 길이방향으로 연결고정하여 길이를 연장시키는 것을 특징으로 하는 건축용 파형강관 연결 고정구.Corrugated steel pipe connecting fixture for building characterized in that the rod is inserted into the long hole of the cylindrical body is connected to the other body fixed to connect the corrugated steel pipe in the longitudinal direction.
KR1020070050085A 2007-05-23 2007-05-23 Jointing and fixing tool of steel ribbed pipes for building KR100800280B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102953323A (en) * 2012-12-04 2013-03-06 南京联众建设工程技术有限公司 Spliced-type corrugated steel plate load-bearing column
KR101508279B1 (en) * 2013-03-15 2015-04-06 이동호 Screw feeding device
KR20210144058A (en) * 2020-05-21 2021-11-30 김형철 multi-purpose column

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200416906Y1 (en) * 2006-02-20 2006-05-23 김영환 Reinforcing Structure for Head of Steel Tube Pile
KR100652011B1 (en) * 2006-05-09 2006-11-30 김성호 Pile in pile

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200416906Y1 (en) * 2006-02-20 2006-05-23 김영환 Reinforcing Structure for Head of Steel Tube Pile
KR100652011B1 (en) * 2006-05-09 2006-11-30 김성호 Pile in pile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102953323A (en) * 2012-12-04 2013-03-06 南京联众建设工程技术有限公司 Spliced-type corrugated steel plate load-bearing column
KR101508279B1 (en) * 2013-03-15 2015-04-06 이동호 Screw feeding device
KR20210144058A (en) * 2020-05-21 2021-11-30 김형철 multi-purpose column
KR102347495B1 (en) * 2020-05-21 2022-01-05 김형철 multi-purpose column

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