KR20010027056A - Protecting pipe for communication fiber-optic cable - Google Patents

Protecting pipe for communication fiber-optic cable Download PDF

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Publication number
KR20010027056A
KR20010027056A KR1019990038625A KR19990038625A KR20010027056A KR 20010027056 A KR20010027056 A KR 20010027056A KR 1019990038625 A KR1019990038625 A KR 1019990038625A KR 19990038625 A KR19990038625 A KR 19990038625A KR 20010027056 A KR20010027056 A KR 20010027056A
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KR
South Korea
Prior art keywords
tube
protective tube
tubes
fitted
protective
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KR1019990038625A
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Korean (ko)
Inventor
김명대
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김명대
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Priority to KR1019990038625A priority Critical patent/KR20010027056A/en
Publication of KR20010027056A publication Critical patent/KR20010027056A/en

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50Underground or underwater installation; Installation through tubing, conduits or ducts
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/443Protective covering
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439Auxiliary devices
    • G02B6/4459Ducts; Conduits; Hollow tubes for air blown fibres

Abstract

PURPOSE: A tube of protecting the fiber-optic telecommunication cable is provided to reduce the effect of temperature changes even when the cable is long and improve the efficiency by placing multiple cables inside the cable tube simultaneously. CONSTITUTION: In a tube(2) of protecting the fiber-optic telecommunication cable, alignment disks having guide holes are set up at intervals inside an outer tube(4). Multiple inner tubes(6) are put into the guide holes. Urethane resin are injected into the outer tube(4). By hardening, the urethane resin holds the outer tube(4) and the inner tube(4) tight together. Tubes(2) are connected by flanges(14) or sockets(24). Here, connecting tubes are used to connect inner tubes(6). Thereby, as plumbing both the inner tubes(6) and the outer tubes(4) simultaneous, time is saved. The tubes are not affected by temperature changes or trembling as the tubes(6,4) are integrated.

Description

통신 광케이블 보호관{Protecting pipe for communication fiber-optic cable}Protective pipe for communication fiber-optic cable

본 발명은 통신 광케이블 보호관에 관한 것으로서, 특히 교량을 통과하는 광케이블의 외면에 보호관을 시공 설치함에 있어서, 시공이 신속 용이하게 할 뿐 아니라, 차량의 주행진동에 의한 내관의 이동을 방지케 하며 또한 기온변화에 따라 보호관이 신축하드라도 연결된 보호관이 파손되거나 이탈되지 않도록 한 것이다.The present invention relates to a communication optical cable protective tube, in particular, in the installation of the protective tube on the outer surface of the optical cable passing through the bridge, not only facilitates the construction, but also prevents the movement of the inner tube due to the driving vibration of the vehicle, and also the temperature According to the change, even if the protective tube is stretched, the connected protective tube is not damaged or detached.

일반적으로 교량을 통과하는 케이블 보호관의 시공은 개략적으로 다음과 같은 구성으로 시공된다.In general, the construction of the cable sheath through the bridge is roughly constructed as follows.

즉, 교량밑에 앵글을 고정 설치한 다음 상기 앵글에 많은 개수의 보호관(외관)을 연결 설치하되, 연결부의 일측 보호관에는 보호관의 외경 보다 약간 더 큰 내경을 같은 확관부를 구성하고, 상기 확관부에 타측 보호관의 단부가 끼워져 융착 결합되어 있고, 또한 상기 보호관내에는 직경이 다소 작은 내관이 다수개 끼워져 결합되도록 한 것이다.That is, a fixed angle of the bridge is installed under the bridge, and then a large number of protection pipes (exteriors) are installed at the angles, but one protection pipe of the connection part has an inner diameter that is slightly larger than the outer diameter of the protection pipes, and the expansion pipe part The end of the other side of the protective tube is fitted and fusion-bonded, and the inner tube is a plurality of inner pipes with a somewhat smaller diameter is fitted to be coupled.

그러나 이러한 구성의 보호관 시공 장치는 다음과 같은 문제점이 있는 것이었다.However, the protective tube construction device of such a configuration had the following problems.

즉, 다리에 시공되는 보호관의 길이는 길게 1000m가 넘는 경우가 많이 있고, 이러한 경우 신축 소켓이 교량의 양끝에만 설치되어 있어 계절에 따른 기온 편차에 대한 대비가 미흡한 것이었다.In other words, the length of the protective pipe to be installed on the bridge is often more than 1000m long, in this case, because the expansion socket is installed only at both ends of the bridge was insufficient preparation for the seasonal temperature variation.

따라서 겨울철에 보호관이 수축하게 되면 신축소켓으로부터 보호관의 단부가 이탈하게 되고, 이러한 상태에서 여름철에 보호관이 늘어나게 되면, 보호관의 단부가 다시 신축소켓 재결합되지 못하여 파손되는 현상이 자주 발생하게 되고, 이러한 현상은 교량의 길이가 길어지면 다욱 심하게 나타나는 것이었다.Therefore, when the protective tube shrinks in the winter, the end of the protective tube is separated from the expansion socket, and if the protective tube is increased in the summer in this state, the end of the protective tube may not be re-combined again, the breakage occurs frequently. The length of the bridge was much worse.

뿐만 아니라, 융착식 결합방법이므로 보호관 내에 별도의 내관 작업을 동시에 할 수 없는 문제점이 있을 뿐 아니라, 작업에 많은 인력과 장비 등이 소요되는 것이다.In addition, there is a problem that can not be a separate inner tube work in the protective tube at the same time because of the fusion coupling method, a lot of manpower and equipment is required for the work.

또한 보호관내에 많은 내관이 끼워져 있어 무게가 많이 나가게 되므로 교량에 무리를 가중시키며, 보호관내에 끼워진 내관이 차량의 진동에 의해 주행방향으로 이동하게 되므로 연결부위의 단선이 잦고, 고장발생이 빈번하며, 고장발생시에는 고장난관을 정확히 찾아 내기가 어려운 등의 문제점이 있는 것이었다.In addition, many inner tubes are inserted in the protective tube, which increases the weight, which adds weight to the bridge.Inner tubes inserted in the protective tube are moved in the driving direction due to the vibration of the vehicle. In the event of a fault, it was difficult to pinpoint a fault tube.

본 발명은 이러한 종래의 제반 문제점들을 해결하고자 시공이 신속 용이하면서 교량의 길이가 길어지더라도 온도 변화의 신축에 따른 문제를 해결하고, 또한 보호관 내에 많은 다공관을 동시에 시공 설치할 수 있게 하여 보다 효과적인 보호관의 시공이 이루어질 수 있도록 한 것이다.The present invention solves the problems of the conventional, even if the construction is quick and easy, even if the length of the bridge is long, solve the problems caused by the expansion and contraction of the temperature change, and also can be installed at the same time many porous tubes in the protective tube more effective protective tube The construction of the will be made.

상기 목적을 달성하기 위하여 본 발명은 P.V.C로 구성된 약 4∼6m 정도 길이의 외관 내에 다수의 내관을 끼워 설치하되, 상기 내관은 외관 내에 등간격(약1m) 으로 다수개 끼워 설치된 정렬 원판에 의해 각 내관의 간격 및 위치가 일정하게 유지되게 하고, 정렬 원판과 정렬원판 사이에는 우레탄 수지가 주입 경화되게 한다.In order to achieve the above object, the present invention is installed by inserting a plurality of inner tube in the appearance of about 4 to 6m length made of PVC, the inner tube is each installed by a plurality of alignment discs installed at equal intervals (about 1m) in the outer appearance The spacing and position of the inner tube are kept constant, and the urethane resin is injected and cured between the alignment disc and the alignment disc.

이때 외관내에 끼워지는 내관의 직경은 큰것과 작은것을 함께 설치하여 사용할 수도 있다.At this time, the diameter of the inner tube fitted in the exterior may be used by installing a large and small.

상기한 구성으로 보호관을 구성하되, 보호관과 보호관의 연결은 보호관 외면에 별도의 연결 플렌지를 접착 고정한 다음 플렌지와 플렌지를 볼트와 너트로 체결 고정되게 하며, 이때 보호관 내에 일정한 간격으로 끼워진 내관의 결합은 일측 내관에 끼워진 연결관을 이용하여 연결하게 된다.The protective tube is configured as described above, but the connection between the protective tube and the protective tube is fixed by attaching a separate connecting flange to the outer surface of the protective tube, and then the flange and the flange are fastened and fixed by bolts and nuts. It is connected using a connector fitted to one inner tube.

또한 신축 연결부에는 연결소켓과 연결관을 이용하여 보호관 및 보호관 내에 끼워진 내관이 연결되게 하며, 이때 보호관과 내관의 연결이 동시에 가능한 것은 보호관 내에 끼워진 내관의 위치가 정렬원판에 의해 항상 일정한 위치와 간격으로 구성되어 있어 이들의 동시 결합이 가능케 하여서 된 것이다.In addition, the connecting portion and the inner tube sandwiched in the protective tube are connected to the stretchable connecting portion by using the connecting socket and the inner tube inserted in the protective tube can be connected at the same time. It is composed so that they can be combined simultaneously.

상기에서 연결소켓의 위치는 다리의 교각마다 위치케 하므로서 온도변화에 따른 보호관의 신축거리가 종래에 비하여 현저히 줄어들게 되므로 신축에 의해서 보호관이 연결 소켓을 이탈할 우려는 전혀 없게 된다.Since the position of the connection socket is located at each bridge pier, the expansion and contraction distance of the protection tube according to the temperature change is significantly reduced compared to the conventional, so there is no fear that the protection tube from the connection socket by the expansion and contraction.

도 1 : 본 발명의 일부 절단 사시도1: a partially cutaway perspective view of the present invention

도 2 : 본 발명의 측면 구성도2 is a side configuration diagram of the present invention

도 3 : 본 발명의 요부 단면 구성도3 is a sectional view of the main part of the present invention

도 4 : 본 발명의 보호관 내에 끼워지는 정렬 원판의 사시도4 is a perspective view of the alignment disc fitted in the protective tube of the present invention

도 5 : 본 발명 보호관을 플렌지로 연결하는 구성의 단면도5 is a cross-sectional view of a configuration for connecting the protective tube of the present invention with a flange

도 6 : 본 발명 보호관을 플렌지로 연결하는 구성의 사시도6 is a perspective view of a configuration for connecting the protective tube of the present invention with a flange

도 7 : 본 발명 보호관을 연결 소켓을 이용한 연결 구성단면도7 is a cross-sectional view of the present invention the protective tube connection using a connection socket

도 8 : 본 발명의 조립된 상태의 일부 절단 사시도8 is a partially cutaway perspective view of the assembled state of the present invention.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

(2)--보호관 (4)--외관(2)-Protector (4)-Appearance

(6)--내관 (8)--안내공(6)-Inside (8)-Information Worker

(10)--정렬원판 (12)--주입공(10)-Alignment Disc (12)-Injection Hole

(14)--우레탄수지 (16)--체결공(14)-urethane resin (16)-fastener

(18)--볼트 (20)--너트(18)-Bolt (20)-Nut

(22)--연결관 (24)--연결소켓(22)-connector (24)-connection socket

(26)--걸림턱(26)-Jumping Jaw

이하 본 발명의 실시예를 첨부도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 사용되는 보호관(2)의 단면 구성도로서, 외관(4) 내에 외관(4)의 길이와 동일한 길이를 갖는 다수의 작은 내관(6)을 끼워 설치하되, 보호관(2) 내에는 등간격으로 정렬원판(10)이 끼워지게 하여 정렬원판(10)에 구성된 각 안내공(8)에 내관(6)이 끼워지게 하므로서 외관(4) 내에 길이방향으로 끼워진 내관(6)의 위치가 항상 일정한 곳에 위치케 한다.1 is a cross-sectional configuration diagram of a protective tube 2 used in the present invention, in which a plurality of small inner tubes 6 having a length equal to the length of the outer tube 4 are inserted into the outer tube 4, but the protective tube 2 is installed. The inner tube 6 is inserted in the longitudinal direction in the outer surface 4 so that the inner tube 6 is fitted into each guide hole 8 of the alignment disc 10 so that the alignment disc 10 is fitted at equal intervals. Make sure the location is always in a constant position.

상기에서와 같이 보호관(2) 내에 등간격으로 안내공(8)이 뚫린 정렬원판(10)이 끼워지고, 상기 정렬원판(10)의 안내공(8)에 다수의 내관(6)이 끼워져 일정한 위치와 간격을 유지하는 보호관(2)의 다수곳에 주입공(12)을 뚫른 다음 상기 주입공(12)을 통하며, 우레탄 수지(15)를 주입 발포 경화되게 한다.As described above, the alignment disc 10 in which the guide holes 8 are drilled at equal intervals in the protective tube 2 is inserted, and a plurality of inner tubes 6 are fitted in the guide holes 8 of the alignment disc 10 to be fixed. Through the injection hole 12 in a plurality of places of the protective tube (2) to maintain the position and spacing through the injection hole 12, the urethane resin (15) to the injection foam curing.

상기한 상태의 보호관(2)을 연결하기 위한 장치로서는 플렌지를 이용한 연결 장치와 연결소켓을 이용한 연결장치 두가지가 있다.As a device for connecting the protective tube 2 in the above state, there are two types of connecting devices using a flange and a connecting device using a connecting socket.

먼저 플렌지(14)를 이용한 장치는 도6에 도시되어 있다.First, the device using the flange 14 is shown in FIG.

즉, 보호관(2)의 양측단부에 체결공(16)이 뚫린 플렌지(14)를 접착 고정한 다음 양측 플렌지(14)를 볼트(18)와 너트(20)로 체결 고정하므로서 보호관(2)이 서로 연결되게 하며, 이때 보호관(2) 내에 끼워진 내관(6)의 연결은 다음과 같이 된다.That is, the protective pipe 2 is mutually fixed by fixing and fixing the flange 14 having the fastening hole 16 drilled at both ends of the protective tube 2, and then fastening the two flanges 14 with the bolt 18 and the nut 20. In this case, the connection of the inner tube 6 fitted in the protective tube 2 is as follows.

즉, 도5에서와 같이 일측 보호관(2)의 내관(6)에 연결관(22)을 끼운 다음 일측 보호관(2)을 타측 보호관(2')에 근접시켜 각 보호관(2)(2') 내에 끼워진 내관(6)(6') 들이 서로 근접되게 하면 보호관(2)(2') 내에 끼워진 정렬원판(10)에 의해 내관(6)(6') 끼리의 위치가 서로 일치하게 되고, 이러한 상태에서 일측 내관(6)에 끼워진 연결관(22)을 이동시켜 연결관(22)이 양측 내관(6)(6')을 연결토록 하면, 보호관(2)(2')과 함께 내관(6)(6')의 연결이 간단히 이루어지게 되며, 이러한 방법으로 여러개의 보호관을 연결하게 되며, 플렌지(14)를 이용한 보호관(2)(2')의 결합이 완료되면, 주입공(12)을 통하여 우레탄수지를 주입한다.That is, as shown in FIG. 5, the connecting tube 22 is inserted into the inner tube 6 of the one side protective tube 2, and then the one side protective tube 2 is brought close to the other side protective tube 2 ′. When the inner tubes 6 and 6 'fitted inside each other are brought close to each other, the positions of the inner tubes 6 and 6' coincide with each other by the alignment disc 10 fitted in the protective tube 2 and 2 '. When the connecting pipe 22 inserted in one inner pipe 6 is moved in a state to allow the connecting pipe 22 to connect both inner pipes 6 and 6 ', the inner pipe 6 together with the protective pipes 2 and 2'. 6 'is simply connected, and in this way, several protective tubes are connected, and when the coupling of the protective tubes 2 and 2' using the flange 14 is completed, the injection hole 12 is opened. Inject urethane resin through.

교량의 교각 위에 설치되어 온도 변화에 따라 신축하는 연결 소켓(24)의 결합은 도7에서 도시되어 있다.The engagement of the connecting sockets 24, which are installed on the bridge piers and expands and contracts with temperature changes, is shown in FIG.

즉, 일측 보호관(2)의 외면에 보호관(2)의 외경보다 약간 더 큰 내경을 갖는 연결소켓(24)을 끼워 설치하고, 연결소켓(24)의 내면 중앙에는 걸림턱(26)을 구성하여 연결소켓(24)이 보호관(2)의 어느 한쪽으로 지나치게 기우는 것을 방지케 하고, 이러한 상태에서 연결소켓(24)의 타측에 또다른 보호관(2')을 끼워 설치하면 된다.That is, the connecting socket 24 having an inner diameter slightly larger than the outer diameter of the protective tube 2 is inserted into the outer surface of the one protective tube 2, and the locking jaw 26 is formed at the center of the inner surface of the connecting socket 24. The connecting socket 24 may be prevented from being excessively tilted to either side of the protective tube 2, and in this state, another protective tube 2 ′ may be inserted into the other side of the connecting socket 24.

상기에서 연결소켓(24)으로 연결되는 부위의 내관(6)(6') 연결은 다음과 같이 이루어지게 된다.The inner tube 6, 6 'connection of the portion connected to the connecting socket 24 is made as follows.

먼저 일측 보호관(2)에 연결 소켓(24)을 끼운 다음 연결소켓(24)이 끼워진 보호관(2)의 내관(6)에 비교적 긴 연결관(22)을 먼저 끼우고난 다음 연결소켓(24)과 결합하고자 하는 다른 보호관(2')을 연결소켓(24) 측부에 위치시키고, 일측 보호관(2)의 내관(6)에 끼워진 연결관(22)을 이동시켜 다른 보호관(2')의 내관(6') 외면에 차례로 이동시켜 끼워지게 하고, 동시에 다른쪽 보호관(2')을 이동시켜 연결소켓(24)에 끼워지게 하면 연결소켓(24)을 이용한 보호관(2)(2')의 연결이 완료된다.First, the connecting socket 24 is inserted into one of the protective pipes 2, and then the relatively long connecting pipe 22 is first inserted into the inner pipe 6 of the protective pipe 2 into which the connecting socket 24 is fitted. The other protective tube 2 'to be coupled is positioned on the side of the connecting socket 24, and the inner tube 6 of the other protective tube 2' is moved by moving the connecting tube 22 fitted in the inner tube 6 of the one protective tube 2 '. ') After moving to the outer surface in turn, and at the same time to move the other protective tube (2') to fit into the connecting socket 24, the connection of the protective tube (2) (2 ') using the connecting socket 24 is completed. do.

상기에서 보호관(2)(2') 내에 끼워진 내관(6)(6')이 서로 정확하게 연결관(22)으로 연결되는 것은 보호관(2)(2') 내에 등간격으로 끼워진 정렬원판(10)이 내관(6)(6')의 위치를 정확히 유지시키기 때문이다.In the above, the inner tube 6, 6 ′ inserted into the protective tube 2, 2 ′ is precisely connected to each other by the connecting tube 22. The alignment disc 10 fitted at equal intervals in the protective tube 2, 2 ′ is provided. This is because the position of the inner tube 6, 6 'is accurately maintained.

이때 연결소켓(24)에 끼워지는 각 보호관(2)(2')은 연결소켓(24)의 내면 중앙에 위치한 걸림턱(26)으로부터 약간의 거리를 두어 온도변화에 따라 신축할 수 있게 연결하는 것이 중요하며, 상기 연결소켓(24)은 교량의 각 교각상에 위치케 하므로서, 약 40m 간격으로 설치되는 교각마다 연결소켓(24)이 위치하게 되고, 따라서 온도변화에 따른 보호관(2)의 신축도 40m 간격만큼 신축이 일어나게 되므로 신축되는 량이 미미하게 되므로 약간의 신축간격만 유지하면 된다.At this time, each of the protective pipes (2) (2 ') fitted to the connecting socket 24 is connected to be stretchable according to the temperature change by a slight distance from the locking jaw (26) located in the center of the inner surface of the connecting socket (24). It is important that the connection socket 24 is located on each pier of the bridge, so that the connection socket 24 is located at each piers installed at intervals of about 40m, thus the expansion of the protective tube 2 according to the temperature change Since the stretching occurs as shown in 40m intervals because the amount of expansion is insignificant, only a slight expansion interval needs to be maintained.

이와 같은 방법으로 교량의 교각마다 다수개의 보호관(2)을 플렌지(14)와 연결관(6)을 연결한 다음 교각상에는 연결소켓(24)과 연결관(6)을 이용하여 보호관(2)이 연결되게 하므로서, 보호관(2) 내에 끼워진 내관(6)까지 연결할 수 있어 교량위를 지나는 광케이블이 각 내관을 관통하게 하므로서, 광케이블의 보호를 보다 효과적으로 할 수 있게 된다.In this way, a plurality of protection pipes 2 are connected to the flange 14 and the connection pipe 6 for each bridge pier, and then the protection pipe 2 is connected to the bridge using the connection socket 24 and the connection pipe 6. By being connected, it is possible to connect to the inner tube 6 fitted in the protective tube 2, so that the optical cable passing through the bridge can pass through each inner tube, it is possible to more effectively protect the optical cable.

이상과 같이 본 발명은 교량을 통과하는 광케이블을 하기 위한 통신 광케이블 보호관을 시공 설치함에 있어서, 보호관 내에 다수의 내관을 일정한 위치에 위치케 하고, 이들 보호관은 연결 플렌지를 이용하여 연결하되, 내관은 연결관으로 신축 가능케 연결하고, 교량의 교각위에 설치되는 연결소켓에는 양측 보호관이 다소 여유있게 끼워지면서 내관은 역시 연결관으로 연결되게 하므로서, 교량상에 통신광 케이블 보호관을 시공 설치함에 있어 시공이 신속 용이하면서 온도변화에 따른 신축에도 아무런 장애가 되지 않으며, 더구나 보호관 내에 다수의 내관이 일체로 연결되어 있어 보다 효과적인 광케이블의 보호가 이루어지게 되는 등의 효과가 있는 것이다.As described above, in the present invention, when installing a communication optical cable protective tube for an optical cable passing through a bridge, a plurality of inner tubes are positioned at a predetermined position in the protective tube, and these protective tubes are connected using a connecting flange, but the inner tube is connected. Flexible connection with the pipe, and the connecting socket installed on the pier of the bridge, the both sides of the protective pipe is inserted somewhat relaxed, the inner pipe is also connected to the connector, so the construction is quick and easy to install the communication optical cable protective pipe on the bridge However, there is no obstacle to expansion and contraction due to temperature change, and moreover, a plurality of inner tubes are integrally connected in a protective tube, such that the protection of an optical fiber becomes more effective.

Claims (3)

통신 광케이블 보호관을 구성함에 있어서, 외관(4)의 내면에 등간격으로 안내공(8)이 뚫린 정렬원판(10)을 끼워 설치하되, 상기 정렬원판(10)의 각 안내공(8)에는 내관(6)이 끼워지게 하고, 보호관(2)의 양측 단부를 제외한 외관(2) 내측에는 우레탄수지(15)를 주입 경화하여서 됨을 특징으로 하는 통신 광케이블 보호관In constructing the communication optical cable protective tube, the inner surface of the outer surface (4) is fitted with an alignment disk 10 through which the guide holes 8 are drilled at equal intervals, and each guide hole 8 of the alignment disk 10 is installed in the inner tube (6) is fitted, and the communication optical cable protective tube, characterized in that the urethane resin (15) is injected and cured inside the outer appearance (2) except the both ends of the protective tube (2) 제1항에 있어서, 통신 광케이블 보호관(2)의 양측단부에 체결공(16)이 뚫린 플렌지(14)를 접착 고정하여 보호관(2)의 연결시 볼트(18)와 너트(20)로 이들이 체결 고정되게 하되, 보호관(2)(2') 내에 끼워진 내관(6)(6')은 연결관(22)으로 서로 연결되게 하여서 됨을 특징으로 하는 통신 광케이블 보호관The method of claim 1, wherein the flanges 14 through which the fastening holes 16 are drilled are fixed to both ends of the communication optical cable protective tube 2 so that they are fastened with bolts 18 and nuts 20 when the protective tube 2 is connected. The communication optical cable protective tube, characterized in that the inner tube (6) (6 ') fitted in the protective tube (2) (2') is to be fixed to each other by a connecting tube (22) 제1항에 있어서, 일측에 내면 중앙에 걸림턱(26)이 형성된 연결소켓(24)을 보호관(2)의 일측에 끼워지게 하고, 연결소켓(24)의 타측에는 다른 보호관(2')이 끼워지게 하되, 보호관(2)(2') 내에 끼워진 내관(6)(6')은 연결관(22)으로 서로 연결되게 하여서 된 통신 광케이블 보호관The connecting socket 24 having the locking jaw 26 formed at the center of the inner surface thereof is fitted to one side of the protective tube 2, and the other protective tube 2 'is provided at the other side of the connecting socket 24. Communication optical cable protective tube which is fitted, but the inner tube (6) (6 ') fitted in the protective tube (2) (2') is connected to each other by the connecting tube (22)
KR1019990038625A 1999-09-10 1999-09-10 Protecting pipe for communication fiber-optic cable KR20010027056A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201205A (en) * 1981-06-05 1982-12-09 Toshiba Corp Airtight through device for wire signal transmission line
JPH08201667A (en) * 1995-01-25 1996-08-09 Sumitomo Electric Ind Ltd Connection part of transmission line for optical fiber cable and optical fiber line
JPH0993776A (en) * 1995-09-27 1997-04-04 Chiba Yogyo Kk Branch portion structure for underground multi-purpose wire duct
JPH10322858A (en) * 1997-05-22 1998-12-04 Sumitomo Wiring Syst Ltd Spacer for formation of space in wire harness, and waterproof structure of grommet using that spacer
JPH1141773A (en) * 1997-07-14 1999-02-12 Haneda Hume Pipe Co Ltd Support in culvert and fixing structure therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201205A (en) * 1981-06-05 1982-12-09 Toshiba Corp Airtight through device for wire signal transmission line
JPH08201667A (en) * 1995-01-25 1996-08-09 Sumitomo Electric Ind Ltd Connection part of transmission line for optical fiber cable and optical fiber line
JPH0993776A (en) * 1995-09-27 1997-04-04 Chiba Yogyo Kk Branch portion structure for underground multi-purpose wire duct
JPH10322858A (en) * 1997-05-22 1998-12-04 Sumitomo Wiring Syst Ltd Spacer for formation of space in wire harness, and waterproof structure of grommet using that spacer
JPH1141773A (en) * 1997-07-14 1999-02-12 Haneda Hume Pipe Co Ltd Support in culvert and fixing structure therefor

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