JP4306094B2 - Jumper socket opening tool - Google Patents

Jumper socket opening tool Download PDF

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Publication number
JP4306094B2
JP4306094B2 JP2000174815A JP2000174815A JP4306094B2 JP 4306094 B2 JP4306094 B2 JP 4306094B2 JP 2000174815 A JP2000174815 A JP 2000174815A JP 2000174815 A JP2000174815 A JP 2000174815A JP 4306094 B2 JP4306094 B2 JP 4306094B2
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JP
Japan
Prior art keywords
jumper socket
gripping
jumper
clamp
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2000174815A
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Japanese (ja)
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JP2001359210A (en
Inventor
一志 中内
武 石橋
利充 手塚
一夫 永田
高浩 小柴
博人 築山
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Sanwa Tekki Corp
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Sanwa Tekki Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to JP2000174815A priority Critical patent/JP4306094B2/en
Publication of JP2001359210A publication Critical patent/JP2001359210A/en
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Publication of JP4306094B2 publication Critical patent/JP4306094B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、鉄塔径間をわたる架空送電線同士を鉄塔近傍でジャンパ線で接続するために、鉄塔に架空送電線を引き留める引き留めクランプにボルト接続されるジャンパソケットをボルトを抜き取り後に引き留めクランプから引き外すためのジャンパソケット開放工具に関するものである。
【0002】
【従来の技術】
鉄塔径間をわたる架空送電線同士は鉄塔近傍でジャンパ線で接続される。架空送電線は鉄塔に引き留めクランプで引き留められ、ジャンパ線はこれに圧着されたジャンパソケットで引き留めクランプに接続される。引き留めクランプは、端部に引手を備えた鋼スリーブを内部に有するアルミスリーブから側方に接続板が延出している。一方、ジャンパソケットは、一端側にジャンパ線を圧着するためのスリーブと、他端側に引き留めクランプへ接続するための二股状の接続板とを備えている。引き留めクランプの接続板はジャンパソケットの接続板間に挿入してボルトで一体に締め止められる。
【0003】
落雷や地震などの事故時の送電系統の復旧工事においては、ジャンパ線を本線から切断して故障区間を切り離すために、ジャンパソケットを引き留めクランプから取り外す作業が行われる。従来、ジャンパソケットの取り外し作業は、引き留めクランプ及びジャンパソケットの接続板を固定するボルトを抜き取った後にジャンパソケットを引き留めクランプから引き離している。しかし、ボルトを抜き取っても、接続板相互が堅く密着しているため、ハンマー等で叩きながら引き離している。
【0004】
【発明が解決しようとする課題】
上記従来のジャンパソケットの取り外し作業においては、ジャンパソケットが引き留めクランプから外れ難く、作業効率が悪く、鉄塔上の高所作業となるから危険を伴うし、復旧に手間がかかる要因にもなるという問題がある。
そこで本発明は、ジャンパソケットを引き留めクランプから簡単に取り外すことができ、作業の安全性を向上させると共に、送電系統内の故障から迅速に復旧させるジャンパソケット開放工具を提供することを課題としている。
【0005】
【課題を解決するための手段】
上記課題を解決するため、第1の発明においては、鉄塔近傍で架空送電線間に介在するジャンパ線を圧着し、鉄塔に架空送電線を引き留める引き留めクランプCにボルト接続される接続部J1を備えたジャンパソケットJを接続ボルトの抜き取り後に引き留めクランプCから引き離すためのジャンパソケット開放工具1において、ジャンパソケットJの接続部J1を把持金具2で係止させ、この把持金具2をジャッキ機構3に相対移動可能に結合し、引き留めクランプCに把持金具2を固定して引き留めクランプCに対して把持金具2を進退操作するようにジャンパソケット開放工具1を構成した。
第2の発明においては、把持金具2に、相互間にジャンパソケットJの接続部J1を挟むように間隔を変更可能に対向させた一対の把持片6,8を設け、ジャンパソケットJのボルト孔J2に差し込む係止突起10を夫々設けた。
第3の発明においては、把持金具2に回動により把持片の少なくとも一方8を軸方向に移動させて把持片6,8相互の間隔を変更するボルト軸9を設けた。
第4の発明においては、ジャッキ機構3を、ねじ棒15の先端部に引き留めクランプCへ当てがう受け部材16を回動自在に結合し、ねじ棒15に螺合してねじ棒15の回転によりねじ棒15上を移動する移動片14に把持金具2を回動自在に結合した。
【0006】
【発明の実施の形態】
本発明の実施の一形態を図面を参照して説明する。
図1ないし図5において、ジャンパソケット開放工具1は、把持金具2と、ジャッキ機構3とで構成されている。把持金具2は、断面略コ字状の板フレーム4を備えている。板フレーム4は、結合板5の両端部から固定把持板6と支持板7とが直角に立ち上がって間隔をおいて平行に対向するように構成されている。固定把持板6と支持板4との間には、可動把持板8がこれらにほぼ平行に対向するように配置され、一方の固定把持板6に螺合するねじ軸9で支持されている。把持板6,8には、相互間にジャンパソケットJの接続板J1,J1を挟んで対向したときにボルト孔J1に対応する位置にこれへ差し込まれる係止突起10が設けられている。ねじ軸9は、一端が可動把持板8に回動自在に枢着され、可動把持板8から垂直に伸びて、支持板7に螺合し、他端に円板状の回転ハンドル7aが固着されている。また、可動把持板8には二本のガイドロッド11が垂直に固定されている。このガイドロッド11は支持板7を自由に貫通しており、先端に鍔状の第1ストッパ11aを有する。この第1ストッパ11aは、可動把持板8の把持板6側への移動を規制する。支持板7の外面には、第1ストッパ11aと支持板7との間に出入りして最大ストローク長を変更することができるストローク調整板12がねじ12aで固定される。このストローク調整板12の固定位置は、長孔12bの範囲で調整される。また、板フレーム4の結合板5の内面には、可動把持板8の把持板6側への移動を規制する第2ストッパ13が設けられている。第2ストッパ13は、結合板5上に載せ置かれる横板13と、この横板13の一端からほぼ直角に立ち上がった縦板13bと、横板13を結合板5に固定するためのボルト13cとを備えている。可動把持板8の端縁には横板13を自由に貫通させるが縦板13bの通過を阻止する切欠き8aが形成されている。結合板5には、第2ストッパ13の固定位置を可動把持板8の移動方向へ変更するためにボルト13cを挿通させる長孔5aが設けられている。
【0007】
把持金具2の側部にはジャッキ機構3が設けられている。ジャッキ機構3は、固定把持板6の外側に突出するように固定された移動片14と、この移動片14が途上で螺合するねじ棒15を備えている。ねじ棒15は、先端に引き留めクランプ本体Cを受け入れる受け部材16が回動自在に設けられており、他端部に円盤状の回転ハンドル15aが固着されている。受け部材16は、引き留めクランプC本体の外形に対応する形状に形成されている。
【0008】
このジャンパソケット開放工具1は、送電系統の事故時の復旧工事において、引き留めクランプC及びジャンパソケットJの接続板C2,J1を固定するボルトを抜き取ってから、ジャンパソケットJを引き留めクランプCから取り外すときに用いる。ジャンパソケット開放工具1においては、ジャンパソケットJと引き留めクランプCとの引き離し作業に当たり、先ず把持金具2をジャンパソケットJの接続部J1に係止する。把持金具2の可動把持板8と固定把持板6との間隔は予め広げておき、両者間にジャンパソケットJの接続部J1を挿入し、ボルト孔J2に係止突起10を差し込んで把持金具2を接続部J1に固定する。可動把持板8は、回転ハンドル9aと共にねじ棒9を回転させると、支持板7にねじ棒8がねじ込まれていくので固定把持板6に接近していき固定把持板6との間に接続部J1を挟み込む。このとき、必要に応じてストローク調整板12を支持板7と第1ストッパ11aとの間に配置して固定し、また第2ストッパ13の位置を固定把持板6側に固定することによりジャンパソケットJの接続部J1の厚みが小さいものに応じて可動把持板7の移動長さを短縮できるし、接続部J1に過大な把持力がかかるのを回避する。次に、ジャッキ機構3の受け部材16を引き留めクランプ本体Cにその外形に合わせて当てがい、回転ハンドル15aと共にねじ棒15を回転させると、ねじ棒15上の移動片14が相対的に移動するので、把持金具2が引き留めクランプ本体Cから離れていき、ジャンパソケットJを引き留めクランプCから分離させる。このとき、回転ハンドル16に加える回転力は直接ジャンパソケットJを引き留めクランプCから引き離す直線的な引っ張り力より軽くなる。
【0009】
【発明の効果】
以上のように、本発明は、ジャンパソケット及び引き留めクランプの接続板同士が堅く密着していても、軽い力で簡単に引き外すことができるので、作業効率がよく、鉄塔上の高所作業を安全に短時間で遂行することができ、復旧にかかる時間を短縮することができるという効果を有する。
【図面の簡単な説明】
【図1】本発明に係るジャンパソケット開放工具の斜視図である。
【図2】ジャンパソケット開放工具の平面図である。
【図3】ジャンパソケット開放工具の正面図である。
【図4】ジャンパソケット開放工具の右側面図である。
【図5】ジャンパソケット開放工具の左側面図である。
【符号の説明】
1 ジャンパソケット開放工具
2 把持金具
3 ジャッキ機構
6 固定把持板
7 支持板
8 可動把持板
9 ねじ軸
10 係止突起
14 移動片
15 ねじ棒
16 受け部材
C 引き留めクランプ
C1 接続板
J ジャンパソケット
J1 接続板
J2 ボルト孔
[0001]
BACKGROUND OF THE INVENTION
In the present invention, in order to connect the overhead power transmission lines spanning the span of the tower with jumper wires in the vicinity of the tower, the jumper socket connected to the retaining clamp for securing the overhead power transmission line to the steel tower is pulled out from the retaining clamp after the bolt is removed. The present invention relates to a jumper socket opening tool for removing.
[0002]
[Prior art]
Overhead transmission lines that span the tower span are connected by jumper wires near the tower. The overhead power transmission line is secured to the steel tower with a retaining clamp, and the jumper line is connected to the retaining clamp with a jumper socket that is crimped thereto. In the clamping clamp, a connecting plate extends laterally from an aluminum sleeve having a steel sleeve provided with a handle at an end. On the other hand, the jumper socket includes a sleeve for crimping a jumper wire on one end side, and a bifurcated connection plate on the other end side for connection to a holding clamp. The connection plate of the clamping clamp is inserted between the connection plates of the jumper socket and is tightened together with a bolt.
[0003]
In the restoration work of the power transmission system at the time of an accident such as a lightning strike or an earthquake, the work of removing the jumper socket from the clamp is performed in order to disconnect the jumper line from the main line and isolate the failure section. Conventionally, the operation of removing the jumper socket is to pull the jumper socket away from the clamping clamp after the bolts for securing the clamping clamp and the connection plate of the jumper socket are removed. However, even if the bolts are pulled out, the connection plates are firmly adhered to each other, so they are pulled apart while being hit with a hammer or the like.
[0004]
[Problems to be solved by the invention]
In the above conventional jumper socket removal work, there is a problem that the jumper socket is difficult to be removed from the holding clamp, the work efficiency is poor, and it is dangerous because it becomes a high place work on the steel tower, and it also takes time to restore There is.
Therefore, an object of the present invention is to provide a jumper socket opening tool that can easily remove a jumper socket from a holding clamp, improve work safety, and quickly recover from a failure in a power transmission system.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the first invention, a jumper wire interposed between the overhead power transmission lines is crimped in the vicinity of the steel tower, and a connection portion J1 that is bolt-connected to a tension clamp C that holds the overhead power transmission line to the steel tower is provided. In the jumper socket opening tool 1 for separating the jumper socket J from the holding clamp C after removing the connecting bolt, the connecting portion J1 of the jumper socket J is locked by the gripping bracket 2, and the gripping bracket 2 is relative to the jack mechanism 3. The jumper socket opening tool 1 is configured so that the gripping metal fitting 2 is fixed to the holding clamp C and the holding metal fitting 2 is moved forward and backward with respect to the holding clamp C.
In the second invention, the gripping metal fitting 2 is provided with a pair of gripping pieces 6 and 8 which are opposed to each other so that the interval can be changed so that the connection portion J1 of the jumper socket J is sandwiched between them. Each of the locking protrusions 10 to be inserted into J2 was provided.
In the third invention, the gripping bracket 2 is provided with a bolt shaft 9 that changes the distance between the gripping pieces 6 and 8 by moving at least one of the gripping pieces 8 in the axial direction by turning.
In the fourth invention, the jack mechanism 3 is fastened to the tip of the screw rod 15 and the receiving member 16 applied to the clamp C is rotatably coupled, and is screwed to the screw rod 15 to rotate the screw rod 15. Thus, the holding fitting 2 is rotatably coupled to the moving piece 14 that moves on the screw rod 15.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
In FIG. 1 to FIG. 5, the jumper socket opening tool 1 is composed of a holding fitting 2 and a jack mechanism 3. The holding metal fitting 2 includes a plate frame 4 having a substantially U-shaped cross section. The plate frame 4 is configured such that the fixed gripping plate 6 and the support plate 7 rise from a right angle from both ends of the coupling plate 5 and face each other in parallel with an interval. A movable gripping plate 8 is disposed between the fixed gripping plate 6 and the support plate 4 so as to oppose them substantially parallel to each other, and is supported by a screw shaft 9 that is screwed into one fixed gripping plate 6. The gripping plates 6 and 8 are provided with locking projections 10 inserted into the positions corresponding to the bolt holes J1 when facing each other with the connection plates J1 and J1 of the jumper socket J interposed therebetween. One end of the screw shaft 9 is pivotally attached to the movable gripping plate 8, extends perpendicularly from the movable gripping plate 8, is screwed to the support plate 7, and a disc-shaped rotary handle 7a is fixed to the other end. Has been. Two guide rods 11 are fixed vertically to the movable gripping plate 8. The guide rod 11 freely penetrates the support plate 7 and has a hook-shaped first stopper 11a at the tip. The first stopper 11a regulates the movement of the movable gripping plate 8 toward the gripping plate 6 side. A stroke adjusting plate 12 that can enter and exit between the first stopper 11a and the support plate 7 to change the maximum stroke length is fixed to the outer surface of the support plate 7 with screws 12a. The fixed position of the stroke adjusting plate 12 is adjusted within the range of the long hole 12b. A second stopper 13 that restricts the movement of the movable gripping plate 8 toward the gripping plate 6 is provided on the inner surface of the coupling plate 5 of the plate frame 4. The second stopper 13 includes a horizontal plate 13 placed on the coupling plate 5, a vertical plate 13 b rising from one end of the horizontal plate 13 at a substantially right angle, and a bolt 13 c for fixing the horizontal plate 13 to the coupling plate 5. And. At the edge of the movable gripping plate 8, a notch 8a that allows the horizontal plate 13 to freely pass therethrough but prevents passage of the vertical plate 13b is formed. The coupling plate 5 is provided with a long hole 5a through which the bolt 13c is inserted in order to change the fixing position of the second stopper 13 in the moving direction of the movable gripping plate 8.
[0007]
A jack mechanism 3 is provided on the side of the gripping fitting 2. The jack mechanism 3 includes a moving piece 14 fixed so as to protrude to the outside of the fixed gripping plate 6 and a screw rod 15 into which the moving piece 14 is screwed in the middle. The screw rod 15 is rotatably provided with a receiving member 16 for receiving the clamping clamp main body C at the tip, and a disk-like rotary handle 15a is fixed to the other end. The receiving member 16 is formed in a shape corresponding to the outer shape of the retaining clamp C main body.
[0008]
This jumper socket opening tool 1 is used when removing the jumper socket J from the clamping clamp C after extracting the bolts for fixing the clamping clamp C and the connection plates C2 and J1 of the jumper socket J in the recovery work in the event of a power transmission system accident. Used for. In the jumper socket opening tool 1, when the jumper socket J and the clamping clamp C are separated from each other, the gripping metal fitting 2 is first locked to the connection portion J1 of the jumper socket J. The distance between the movable gripping plate 8 and the fixed gripping plate 6 of the gripping bracket 2 is widened in advance, the connecting portion J1 of the jumper socket J is inserted between them, and the locking projection 10 is inserted into the bolt hole J2 to hold the gripping bracket 2 Is fixed to the connecting portion J1. When the threaded rod 9 is rotated together with the rotary handle 9a, the movable gripping plate 8 is screwed into the support plate 7 so that the movable gripping plate 8 approaches the fixed gripping plate 6 and is connected to the fixed gripping plate 6. Insert J1. At this time, if necessary, the stroke adjusting plate 12 is disposed and fixed between the support plate 7 and the first stopper 11a, and the position of the second stopper 13 is fixed to the fixed gripping plate 6 side, thereby jumper socket. The moving length of the movable gripping plate 7 can be shortened according to the thickness of the connecting portion J1 of J being small, and an excessive gripping force is applied to the connecting portion J1. Next, when the receiving member 16 of the jack mechanism 3 is applied to the clamp body C according to its outer shape and the screw rod 15 is rotated together with the rotary handle 15a, the moving piece 14 on the screw rod 15 relatively moves. Therefore, the holding metal fitting 2 moves away from the holding clamp body C, and the jumper socket J is separated from the holding clamp C. At this time, the rotational force applied to the rotary handle 16 is lighter than the linear pulling force that pulls the jumper socket J directly away from the clamp C.
[0009]
【The invention's effect】
As described above, according to the present invention, even if the connection plates of the jumper socket and the clamping clamp are tightly adhered to each other, they can be easily detached with a light force. It can be performed safely in a short time, and the time required for recovery can be shortened.
[Brief description of the drawings]
FIG. 1 is a perspective view of a jumper socket opening tool according to the present invention.
FIG. 2 is a plan view of a jumper socket opening tool.
FIG. 3 is a front view of a jumper socket opening tool.
FIG. 4 is a right side view of the jumper socket opening tool.
FIG. 5 is a left side view of the jumper socket opening tool.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Jumper socket opening tool 2 Grip metal fitting 3 Jack mechanism 6 Fixed holding plate 7 Support plate 8 Movable holding plate 9 Screw shaft 10 Locking protrusion 14 Moving piece 15 Screw rod 16 Receiving member C Holding clamp C1 Connection plate J Jumper socket J1 Connection plate J2 Bolt hole

Claims (4)

鉄塔近傍で架空送電線間に介在するジャンパ線を圧着し、鉄塔に架空送電線を引き留める引き留めクランプにボルト接続される接続部を備えたジャンパソケットを接続ボルト抜き取り後に引き留めクランプから引き離すためのジャンパソケット開放工具において、
前記ジャンパソケットの接続部に係合して前記ジャンパソケットを引き留めクランプから側方へ引き離す方向について固定する把持金具と、
前記引き留めクランプに当てがって引き留めクランプに対して把持金具を進退操作可能なジャッキ機構とを備え、
前記ジャッキ機構は、引き留めクランプに当てがう受け部材と、前記把持金具が結合され、前記ジャンパソケットを引き留めクランプから側方へ引き離す方向に沿って前記受け部材に対して接近位置から離反位置に相対的に移動する移動片と、この移動片を移動させる移動手段とを具備することを特徴とするジャンパソケット開放工具。
A jumper socket for crimping a jumper wire that is interposed between overhead power transmission lines near the tower and holding the overhead power transmission line on the steel tower, and connecting the bolt to the tension clamp. In the open tool,
A gripping metal fitting that engages with a connection portion of the jumper socket and fixes the jumper socket in a direction of pulling it laterally away from the clamp .
A jack mechanism capable of advancing and retracting the gripping metal with respect to the holding clamp by being applied to the holding clamp;
The jack mechanism is configured such that the receiving member that is applied to the holding clamp and the gripping metal fitting are coupled, and the jacking socket is relatively moved from the approaching position to the separating position along the direction in which the jumper socket is pulled away from the holding clamp to the side. jumper socket opening tool to the moving piece, characterized that you and a moving means for moving the moving piece which moves manner.
前記把持金具は、相互間にジャンパソケットの接続部を挟むように間隔を変更可能に対向する一対の把持片を備え、
この把持片の対向面には、前記ジャンパソケットのボルト孔に差し込まれる係止突起を夫々有することを特徴とする請求項1に記載のジャンパソケット開放工具。
The gripping bracket includes a pair of gripping pieces facing each other so that the interval can be changed so as to sandwich the connection portion of the jumper socket between them,
2. The jumper socket opening tool according to claim 1, wherein each of the opposing surfaces of the gripping pieces has a locking projection inserted into a bolt hole of the jumper socket.
前記把持金具には、回動により前記把持片の少なくとも一方を軸方向に移動させて把持片相互の間隔を変更するボルト軸を備えていることを特徴とする請求項2に記載のジャンパソケット開放工具。  3. The jumper socket opening according to claim 2, wherein the gripping bracket is provided with a bolt shaft that changes at least one of the gripping pieces in the axial direction by rotation to change the interval between the gripping pieces. tool. 前記ジャッキ機構の移動手段は、先端部に前記受け部材が回動自在に結合されると共に、前記移動片が螺合して移動片を引き留めクランプに対して進退可能に移動させる回転操作可能なねじ棒を具備することを特徴とする請求項1に記載のジャンパソケット開放工具。 The moving means of the jack mechanism includes a screw capable of rotating operation, wherein the receiving member is rotatably coupled to a tip portion, and the moving piece is screwed to move the moving piece so that the moving piece can be moved forward and backward. The jumper socket opening tool according to claim 1, further comprising a bar .
JP2000174815A 2000-06-12 2000-06-12 Jumper socket opening tool Expired - Fee Related JP4306094B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104821513A (en) * 2015-05-08 2015-08-05 杨瑞亮 Pulley hanging bracket for changing tension insulator
CN104821513B (en) * 2015-05-08 2017-05-10 国网山东省电力公司滨州供电公司 Pulley hanging bracket for changing tension insulator
CN105449591A (en) * 2015-11-27 2016-03-30 合保电气(芜湖)有限公司 Tool for moving electric cable in power construction
CN105449591B (en) * 2015-11-27 2018-02-13 合保电气(芜湖)有限公司 The instrument of mobile energization cable in power construction
CN105429049A (en) * 2015-12-17 2016-03-23 合保电气(芜湖)有限公司 Trimming tool for power construction

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