KR950007609Y1

KR950007609Y1 - Cable duct connector

Info

Publication number: KR950007609Y1
Application number: KR2019930008090U
Authority: KR
Inventors: 이동구
Original assignee: 이동구
Priority date: 1993-05-14
Filing date: 1993-05-14
Publication date: 1995-09-15
Also published as: KR940027651U

Abstract

내용 없음.No content.

Description

Waterproof connector for underground cable

제1도는 본 고안의 분해 사시도.1 is an exploded perspective view of the present invention.

제2도는 본 고안의 사용상태를 나타낸 단면도.2 is a cross-sectional view showing a state of use of the subject innovation.

제3도는 본 고안의 체결상태를 나타낸 정면도.Figure 3 is a front view showing a fastening state of the present invention.

제4도는 제2도의 '가'부분 확대도.4 is an enlarged view of the 'a' part of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1, 1' : 지중 전선관 2, 2' : 외경나사부1, 1 ': underground conduit 2, 2': external thread

3, 3' : 방수캡 4 : 내경나사부3, 3 ': Waterproof cap 4: Internal thread

5 : 밀착부 5a, 5b : 내, 외측 프렌지5: adhesion part 5a, 5b: inner and outer flanges

6 : 경사면 7 : 절곡부6: inclined surface 7: bent portion

8 : 요홈 9 : 링패킹8: groove 9: ring packing

10, 10' : 패킹 11 : 체결밴드10, 10 ': Packing 11: Fastening band

11a : 양측경사턱11a: Both slopes

본 고안은 지하에 매설되는 지중전선관의 연결을 위해 사용되는 연결구에 관한 것으로서 특히, 방수성이 뛰어난 지중전선관용 방수 연결장치에 관한 것이다.The present invention relates to a connector used for connection of underground conduits buried underground, and more particularly, to a waterproof connection device for underground conduits excellent waterproof.

종래에 사용되고 있는 연결장치는, 연결하고자 하는 전선관의 외경보다 큰 내경을 갖는 나선연결관을 이용하여 지중전선관의 일측에 완전히 나삽한 후, 다른 전선관을 맞대어 놓고, 나선연결관을 반대방향으로 회전시켜 나선연결관이 두 전선관의중앙에 위치하도록 하고, 나선연결관의 양끝을 방수테이프로 감아서 고정하는 방식을 연결하였었다.Conventionally used connection device, using a spiral connector having an inner diameter larger than the outer diameter of the conduit to be connected, completely screwed to one side of the underground conduit, and then face the other conduit, and rotate the spiral connector in the opposite direction Helical connectors were placed in the center of the two conduits, and both ends of the spiral connectors were wound and secured by waterproof tape.

그러나, 이와 같이 나선연결관으로 두 전선관을 연결하는 것은 작업에 많은 어려움이 따르게 되는 것이었다.However, connecting the two conduits with the spiral conduits like this has been a difficult task.

즉, 전선관을 지중에 매립하고 나선연결관으로 연결하기 위하여는 땅을 넓게 파야만이 그 안에서 사람이 방수테이프로 나선연결관과 전선관을 연결 부착할 수 있는 것으로, 요즘과 같이 포크레인을 이용하여 전선관이 매립될 정도의 크기만을 굴착하는 경우에는 작업공간이 협소하여 전선관의 연결작업이 어려울 뿐만 아니라, 연결된 전선관을 완전히 밀폐하기 위하여는 나선연결관의 양끝을 방수테이프를 이용하여 감아주어야 하는바, 그 작업의 불편함으로 인하여 부실시공의 염려가 있을 뿐만 아니라, 나선연결관을 완전밀폐하기 위하여는 많은 양의 방수테이프를 소비하여야 하믈 시공단가가 상승하고, 작업시간이 길어지게 되는 등의 문제점이 발생하였다.In other words, in order to bury the conduit in the ground and connect it with the spiral connector, the ground must be dug widely so that a person can attach the spiral connector and the conduit with a waterproof tape. In the case of excavating only this buried size, it is difficult to connect the conduits due to the narrow working space, and in order to completely seal the connected conduits, both ends of the spiral conduits must be wound with a waterproof tape. Due to the inconvenience of work, not only there is a concern of subconstruction work, but also a large amount of waterproof tape must be consumed in order to completely close the spiral connection pipe, resulting in increased construction cost and longer working time. .

뿐만아니라, 방수테이프를 이용하여 완벽하게 연결구의 양끝을 막아 놓았다 할지라도, 시간이 지남에 따라 지압(地壓)에 의한 연결부의 변형으로 테이프 접착부가 탈락 되므로서, 전선관 내부로 물이 스며들어 합선이나 단선의 원인이 되었고, 결국 매립된 지중전선관을 다시 파헤쳐 재시공하여야 하는 등의 비경제적이고 비능률적인 문제점이 제기되었던 것이다.In addition, even if both ends of the connector are completely covered with a waterproof tape, the tape adhesive part is dropped due to the deformation of the connection part due to acupressure over time, so that water leaks into the conduit and short circuits. It was a cause of disconnection, and eventually an uneconomical and inefficient problem was raised, such as having to dig and rebuild the underground underground pipe.

이러한 문제점을 해결하기 위하여 지중전선관의 관말구에 방수캡을 끼우고, 체결밴드로서 간단하고 고정할 수 있도록 구성한 것이 본인의 선출원 고안으로 제기 되었다.In order to solve this problem, the waterproof cap was inserted into the tube end of the underground conduit tube, and it was proposed as a design proposal for the applicant to simply and secure it as a fastening band.

(실용신안등록 출원 제92-13,189호)(Utility Model Registration Application No. 92-13,189)

이것은, 나선형 지중전선관의 외경나사부와 나합되는 내경나사부가 형성된 연질의 합성수지 또는 합성고무로 된 탄성을 가진 방수캡을 형성한 후, 이 방수캡을 연결하고자 하는 두 지중전선관의 관말구에 나착하여 두 방수캡이 선단이 서로 대향되게 밀착시키고, 양측 방수캡의 외주면을 체결구가 형성된 박판상의 합성수지제 체결밴드로 긴밀하게 위포하여 양측 전선관이 연결되도록 된 것으로, 방수캡을 이용하여 두 지중 전선관을 간편하게 연결할 수는 있으나, 압출성형되는 지중전선관의 외경나사부를 이루는 나선부의 굴곡이 일정하게 절곡되지 못하여 방수캡으로 관말구를 완벽하게 차단하지 못하는 것이었다.This is to form an elastic waterproof cap made of soft synthetic resin or synthetic rubber formed with the inner diameter screw portion which is screwed with the outer diameter screw portion of the spiral underground conduit tube, and then the two end wires are attached to the tube ends of the two underground conduits to which the waterproof cap is to be connected. The watertight caps are in close contact with each other so that their ends face each other, and the outer circumferential surfaces of the two watertight caps are tightly overlapped with a thin-walled synthetic resin fastening band formed with fasteners so that the two conduits can be connected easily. Although it can be connected, the bending of the spiral portion forming the outer diameter screw portion of the underground conduit tube to be extruded was not bent constantly was not able to completely block the end of the tube with a waterproof cap.

즉, 지중전선관의 외경나사부가 일정한 굴곡을 이루면 탁월한 방수효과를 기대할 수 있는 것이나, 현재 압출성형되는 지중전선관은 외경나사부가 일정한 굴곡을 이루지 못하고 불규칙하게 성형되므로, 방수캡의 내경나사부와 지중전선관의 외경나사부 사이에 공간이 발생 할 뿐만 아니라, 연질의 방수캡이 전선관의 관말구와 압착되면 방수캡이 변형을 일으켜 공간부가 발생하므로서 침수의 염려가 있는 것이다.That is, if the outer diameter screw portion of the underground conduit tube has a certain bend, it can be expected to have excellent waterproofing effect. However, the currently extruded underground conduit tube can be irregularly formed without making a constant bend of the outer diameter screw, so that the inner diameter of the waterproof cap In addition to the space between the outer diameter screw portion, when the soft waterproof cap is compressed with the end of the conduit, the waterproof cap is deformed, causing the space portion, there is a fear of immersion.

본 고안은 상기한 바와 같은 결점을 제거하기 휘하여, 지중전선관의 관말구 절단면에 연질의 패킹을 밀착시켜 외부로부터 완벽히 차단하여 두 지중전선관을 연결할 수 있도록 구성한 것으로 이하, 첨부도면에 의하여 상세히 설명하면 다음과 같다.The present invention is configured to connect the two underground conduits by completely blocking from the outside by contacting the soft packing on the end face of the underground conduit tube to remove the defects as described above, if described in detail by the accompanying drawings As follows.

나선형 전선관(1)의 외경나사부(2)와 나합되는 내경나사부(4)가 형성된 방수캡(3)(3')에 있어서, 방수캡(3)(3')의 선단부에 내,외cmr프렌지(5a)(5b)로 되는 밀착부(5)를 형성하되, 외측 플렌지(5a)의 외주연은 경사면(6)을 가지도록 형성하며, 내측 프렌지(5b)의 말단부는 내측으로 절곡하여 절곡부(7)를 형성하였으며, 밀착부(5)에는 요홈(8)을 굴설하여 패킹링(9)이 삽입되도록 구성하였다.In the waterproof cap (3) (3 ') having an inner diameter screw portion (4) which is screwed with the outer diameter screw portion (2) of the spiral conduit (1), the inner and outer cmr flange at the distal end of the waterproof cap (3) (3') (5a) (5b) to form a close contact portion 5, the outer periphery of the outer flange (5a) is formed to have an inclined surface (6), the distal end of the inner flange (5b) is bent inward to the bent portion (7) was formed, and the recessed portion (8) in the recessed groove (8) was configured to insert the packing ring (9).

또한, 양측 지중전선관(1)(1')의 선단에는 연질의 합성수지제 또는 합성고무로된 탄성을 가진 패킹(10)(10')을 밀착시킨 후, 방수캡(3)(3')을 나삽하여 긴밀하게 밀착고정하며, 두방수캡(3)(3')에 형성된 밀착부(5)를 서로 대향되게 밀착시킨후, 방수캡(3)(3')의 경사면(6)과 합치되는 양측 경사턱(11a)이 절곡형성된 체결밴드(11)로서 두 방수캡(3)(3')의 경사면(6)을 긴밀하게 위포하도록 체결하여 양측 지중전선관(1)(1')이 견고하게 연결되도록 구성하여 된 것이다.In addition, the ends of the two underground wire pipes (1) (1 ') are in close contact with an elastic packing (10, 10') made of soft synthetic resin or synthetic rubber, and then the waterproof cap (3) (3 ') is attached. It is screwed tightly and tightly fixed, and the close contact portions 5 formed on the two waterproof caps 3 and 3 'are brought into close contact with each other, and then coincided with the inclined surface 6 of the waterproof caps 3 and 3'. Both inclined jaws 11a are bent to form a fastening band 11 to fasten the inclined surfaces 6 of the two waterproof caps 3 and 3 'tightly so that both underground cable tubes 1 and 1' are firmly secured. It is configured to connect.

미설명부로 12은 패킹(10)(10')에 형성된 요홈이다.12, which is not described, is a recess formed in the packing 10 or 10 '.

이와 같이 구성된 본 고안은 지중전선관(1)의 선단에 연질의 합성수지 또는 합성고무제의 패킹(10)(10')을 밀착시킨 후 방수캡(3)(3')을 나합시키면, 방수캡(3)(3')선단에 내측으로 연장 성형된 절곡부(6")가 패킹(10)(10")의 요홈(11)에 삽입된 상태로 밀착되어 방수캡(3)(3')과 지중전선관(1)을 긴밀하게 밀착켜 줌으로써 방수효과를 얻을 수 있을뿐만 아니라, 연질의 합성수지재 또는 연질합성고무제로 된 패킴(10)(10')에 지중전선관(1)(1')의 관말구 선단이 탄력있게 밀착되어, 절단된 지중전선관(1)(1')의 절단면이 불규칙하게 절단되어있어도 관말구의 전면이 긴밀하게 밀착되는 것이다.The present invention configured as described above is to contact the packing (10) (10 ') of the soft synthetic resin or synthetic rubber to the front end of the underground wire pipe (1), and then the waterproof cap (3) (3') to combine, the waterproof cap ( 3) A bent portion 6 "extending inwardly at the tip of 3 'is inserted into the recess 11 of the packing 10 and 10" to be in close contact with the waterproof cap 3 and 3'. By closely contacting the underground cable tube 1, a waterproof effect can be obtained, and the tube of the underground cable tube 1, 1 'is formed in a package 10, 10' made of a soft synthetic resin material or a soft synthetic rubber. The front end of the end of the tube is closely adhered to the elastic end, even if the cut surface of the cut underground wire tube (1) (1 ') is cut irregularly, the front of the tube end is in close contact.

이렇게 두 지중전선관(1)(1')의 관말구에 긴밀하게 나합된 두 방수캡(3)(3')의 밀착부(5)에 형성된 요홈(8)에 패킹링(9)을 삽입하여 서로 밀착시킨 후, 양측 경사턱(11a)이 형성된 체결밴드(11)로서 두 방수캡(3)(3')을 체결한다.By inserting the packing ring (9) into the groove (8) formed in the close portion (5) of the two waterproof caps (3) (3 ') tightly joined to the tube ends of the two underground cable (1) (1') After closely contacting each other, the two waterproof caps 3 and 3 'are fastened as fastening bands 11 on which both inclined jaws 11a are formed.

이때, 방수캡(3)(3')의 외측 프렌지(5a)의 외측 프렌지(5a)에 형성된 경사면(6)에 체결밴드(11)의 양측 경사턱(11a)이 밀착되어 두 방수캡(3)(3')의 중심부을 향하여 압압하게 되므로, 지압(地壓)이나 온도변화에 의한 주중전선관(1)이 수축변형되어도 두 방수캡(3)(3')의 밀착부(5)가 이탈되거나, 틈새가 발생치 않고 견고하게 밀착 고정되는 것이다.At this time, both inclined jaws (11a) of the fastening band 11 is in close contact with the inclined surface (6) formed on the outer flange (5a) of the outer flange (5a) of the waterproof cap (3) (3 ') and the two waterproof caps (3). (3 ') is pressed toward the center of the center, so that even if the main conductor cable (1) shrinkage deformation due to acupressure or temperature change, the contact portion (5) of the two waterproof cap (3) (3') is separated or It is firmly fixed and tight without any gaps.

또한, 방수캡(3)(3') 선단의 밀착부(5)에 형성된 요홈(8)에 패킹링(9)을 삽입하여 두 방수캡(3)(3')의 내부가 외부로부터 완전히 차단되도록 하므로서 탁월한 방수효과를 얻을 수 있다.In addition, the packing ring 9 is inserted into the recess 8 formed in the contact portion 5 at the tip of the waterproof cap 3, 3 'so that the interior of the two waterproof caps 3, 3' is completely blocked from the outside. By doing so, an excellent waterproof effect can be obtained.

Claims

In the waterproof cap 3 formed with the inner diameter screw portion 4 which is screwed with the outer diameter screw portion 2 of the spiral conduit 1, the inner and outer flanges 5a and 5b are formed at the distal end of the waterproof cap 3 '. The contact portion 5 is formed, but the outer periphery of the outer flange 5b is formed to have an inclined surface 6, and the distal end portion of the inner flange 5a is bent inward to form a bent portion 7. The groove 5 is formed in the part 5 so that the packing ring 9 is inserted, and the ends of the underground wires and the ends of the underground wires 1 and 1 'have elasticity made of soft synthetic casting agent or synthetic rubber. After the packings 10 and 10 'are brought into close contact with each other, the waterproof caps 3 and 3' are screwed in and tightly fixed to each other, and the close parts 5 formed in the two waterproof caps 3 and 3 'are secured. After close contact with each other, the two inclined jaws (11a) to be matched with the inclined surface (6) of the waterproof cap (3) (3 ') as a bending band 11 formed of the two waterproof cap (3) (3'). Sphere so as to tightly overlap the inclined surface (6) Waterproof connector for underground conduits.