JPH0321133Y2 - - Google Patents
Info
- Publication number
- JPH0321133Y2 JPH0321133Y2 JP10981684U JP10981684U JPH0321133Y2 JP H0321133 Y2 JPH0321133 Y2 JP H0321133Y2 JP 10981684 U JP10981684 U JP 10981684U JP 10981684 U JP10981684 U JP 10981684U JP H0321133 Y2 JPH0321133 Y2 JP H0321133Y2
- Authority
- JP
- Japan
- Prior art keywords
- protective tube
- distribution line
- support
- pipe
- feeding mechanism
- 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
Links
- 230000001681 protective effect Effects 0.000 claims description 30
- 238000004804 winding Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 2
- 239000012777 electrically insulating material Substances 0.000 claims 2
- 239000011810 insulating material Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 description 50
- 239000004033 plastic Substances 0.000 description 50
- 229920000728 polyester Polymers 0.000 description 16
- 239000004698 Polyethylene Substances 0.000 description 13
- -1 polyethylene Polymers 0.000 description 13
- 229920000573 polyethylene Polymers 0.000 description 13
- 210000005069 ears Anatomy 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Details Of Indoor Wiring (AREA)
- Insulating Bodies (AREA)
- Electric Cable Installation (AREA)
Description
【考案の詳細な説明】
この考案は、高電圧たとえば22KVおよび
33KVの配電線に対して感電防止用防護管を装着
するのに使用される特別高圧配電線への防護管挿
入装置に関するものである。[Detailed explanation of the invention] This invention applies to high voltages such as 22KV and
This relates to a device for inserting protective tubes into special high voltage distribution lines, which is used to install protective tubes to prevent electric shock on 33KV distribution lines.
配電線が道路に沿つてたてられた電柱に架設さ
れるのが一般である現状において、たとえば道路
もしくはその近傍で旋工される土木建築工事に使
われる機材やそれに従事する作業者などが配電線
に偶々接触することにより生ずる災害を未然に防
止するために、配電線には要所に感電防止用防護
管が取付けられているが、この取付け作業は近時
益々増加する傾向にあり、配電線の保全作業に占
めるウエイトが大きくなつている。 In the current situation where power distribution lines are generally installed on utility poles erected along roads, for example, equipment used for civil engineering and construction work and workers engaged in it are being laid on or near roads. In order to prevent accidents caused by accidental contact with electric wires, protective tubes to prevent electric shock are installed at important points on power distribution lines, but this installation work has been increasing in recent years. The weight of power line maintenance work is increasing.
そしてこの配電線の防護工事は巡回時の所見も
しくは依頼者からの申込みによつて要所に対して
迅速に実施することが要求される。 This protection work for power distribution lines is required to be carried out quickly at important points based on findings during patrols or requests from clients.
感電防止用防護管1は、断面形状が第4図に示
すように、外周の一部に軸方向にそつた開口部2
を有し、この開口部2から一対の耳部3を突出さ
せた丸パイプ状をなし、電気絶縁性にすぐれ、か
つ柔軟で弾力性を有するポリエチレン合成樹脂材
からなる単位長さ3m程度のものであり、同様形
状、材料のコネクター(図示せず)を介してたが
いに端部にて接続し所要の長さのものをえるよう
にされている。そしてこの感電防止用防護管(以
下ポリ管と略称する)1を配電線4に取付ける高
圧配電線の防護工事に対しては、本願出願人が実
公昭53−45278号公報によつて提案した自動ポリ
管挿入機が前記要求を充足し、作業の安全、省力
化を可能ならしめるものとして従来用いられてい
る。 The protective tube 1 for preventing electric shock has a cross-sectional shape as shown in FIG.
It has a round pipe shape with a pair of ears 3 protruding from the opening 2, and is made of a polyethylene synthetic resin material with excellent electrical insulation, flexibility, and elasticity, and has a unit length of about 3 m. They are connected at their ends via connectors (not shown) of similar shape and material to obtain the required length. For the protection work of the high-voltage power distribution line in which the electric shock prevention protective tube (hereinafter abbreviated as polyethylene tube) 1 is attached to the power distribution line 4, the automatic A polyethylene tube insertion machine has been conventionally used as a device that satisfies the above requirements and enables work to be performed safely and labor-savingly.
前記自動ポリ管挿入機は、斜め上方に第4図に
示したポリ管1を180゜転倒させた状態にて開口部
2および耳部3のそれぞれ間隙の大きさを配電線
4の直径より十分に大きく拡げさせるポリ管案内
開口部ならびに、その後方斜め下方にポリ管送り
機構部を備えており、前記ポリ管案内開口部と前
記ポリ管送り機構部との間に、これら両者を接続
するポリ管案内用芯部を備えるとともに、前記ポ
リ管案内開口部およびポリ管送り機構部に、配電
線の挟持部をもつ支吊部材、配電線への引掛け部
をもつ吊りパイプをそれぞれ備え、装置全体を前
記支吊部材、吊りパイプにより配電線に吊下げ固
定して使用するようにされているものである。 The automatic plastic pipe inserting machine is configured such that the plastic pipe 1 shown in FIG. The plastic pipe guide opening is provided with a plastic pipe guide opening that is widened to a large extent, and a plastic pipe feeding mechanism is provided diagonally downwardly behind the plastic pipe guide opening, and a plastic pipe that connects the two is provided between the plastic pipe guide opening and the plastic pipe feeding mechanism. The device includes a core for guiding a tube, and a supporting member having a clamping portion for a distribution line and a hanging pipe having a hooking portion for the distribution line in the polyurethane tube guide opening and the polyurethane tube feeding mechanism portion, respectively. The entire device is used by being suspended and fixed to a power distribution line using the above-mentioned suspension member and suspension pipe.
そして使用に当つては、前記ポリ管案内用芯部
の先端が配電線に同一面で、近接するように装置
全体を前記のとおり配電線に吊下げ固定する。そ
して前記コネクターを介してたがいに端部を接続
し、所定の長さにしたポリ管1を、耳部を上方に
向けて前記ポリ管案内用芯部にその下端部から挿
入し、上方に向けた耳部3を前記ポリ管送り機構
部の送りローラ間にかませ、前記ポリ管案内用芯
部にそつて斜め上方に送り出させる。ついでこの
ように送り出されたポリ管1は、前記ポリ管案内
開口部において開口部2および耳部3が十分に大
きく拡げられて配電線4に前記した転倒状態で順
次挿入されてゆき、挿入されたポリ管1は、それ
自身が有する弾性により開口部2および耳部3が
復元し、ついで耳部3の自重により配電線4上に
おいて徐々に180゜回動し、第4図に示した状態に
て配電線4に装着されるのである。 When in use, the entire device is suspended and fixed to the power distribution line as described above so that the tip of the plastic pipe guiding core is on the same plane as and close to the power distribution line. Then, the ends of the plastic pipe 1 are connected to each other via the connector, and the plastic pipe 1 is made to a predetermined length, and is inserted from the lower end into the plastic pipe guiding core with the ears facing upward. The ear part 3 is placed between the feed rollers of the plastic tube feeding mechanism section, and is sent diagonally upward along the plastic tube guiding core. Then, the plastic pipe 1 thus sent out is sequentially inserted into the distribution line 4 in the above-mentioned upside down state with the opening 2 and the ear part 3 expanded sufficiently at the plastic pipe guide opening. The opening 2 and ears 3 of the plastic pipe 1 are restored due to its own elasticity, and then gradually rotated by 180° on the distribution line 4 due to the weight of the ears 3, resulting in the state shown in Fig. 4. It is attached to the power distribution line 4 at.
ところでこの従来の自動ポリ管挿入機は、絶縁
防具を装着した作業者が高圧配電線4にかなり接
近して架線に装置全体を吊下げ固定する作業を行
わねばならない。 However, with this conventional automatic polyethylene tube insertion machine, a worker wearing insulating armor must get very close to the high-voltage distribution line 4 and suspend and fix the entire device to the overhead line.
一方、配電線は、従来6.6KVが主流をなしてい
たが、最近は、電力の需要増に対処し易く、かつ
資材面でも有利とされるたとえば22KVあるいは
33KVに昇圧した配電線が逐次設置されるように
なり、この種の配電線に通電状態において前記し
たポリ管挿入機を使用して配電線の防護工事を行
うことは、前記電圧に十分に耐える絶縁防具を用
いるとしても実際上不可能であり、また、前記ポ
リ管送り機構の駆動に電気モータが用いられてお
り、この電気モータへの導線自身が、前記のよう
な配電線からのリーク媒体となることから、従来
のポリ管挿入機は、この種の配電線に対しては使
用に耐ええないものとされるにいたつた。 On the other hand, although 6.6KV has traditionally been the mainstream for distribution lines, recently 22KV or 22KV or
As distribution lines with a voltage boosted to 33KV are being installed one after another, it is important to carry out protection work on distribution lines using the above-mentioned polyethylene tube insertion machine while the power is on. Even if insulating armor is used, it is practically impossible, and an electric motor is used to drive the plastic pipe feeding mechanism, and the conductor to this electric motor itself is a leakage medium from the power distribution line as described above. As a result, conventional plastic tube insertion machines have come to be considered unsuitable for use with this type of distribution line.
この考案は、前記した現状に鑑み、従来と同様
に省力化をはかりながら、格段に昇圧された配電
線に対して作業の安全面の確保が十分になされた
特別高圧配電線への防護管挿入装置を提供するこ
とを目的とするものである。 In view of the above-mentioned current situation, this idea was developed to insert a protective tube into extra-high voltage distribution lines, which saves labor in the same way as before, but ensures work safety for distribution lines with significantly increased voltage. The purpose is to provide a device.
以下、この考案にかかる実施例装置について図
面を参照しながら詳細に説明する。 Hereinafter, an embodiment of the device according to the invention will be described in detail with reference to the drawings.
第1図はこの実施例装置の外形正面図であり、
第2図はその大い矢印方向からみた外形平面図で
ある。この装置は、斜め下方に位置するポリ管送
り機構部A、この機構部Aに対して斜め上方に位
置するポリ管開口案内部B、前記両部A,Bにそ
つて配置されるポリ管案内用芯部Cおよびこの芯
部Cに対しその中間部後側に近接した位置を占め
る干渉回避部Dからなる本体と、この本体を特別
高圧配電線4に近接した挿入位置にセツトする吊
下げ保持部Eとから構成されている。 FIG. 1 is a front view of the external appearance of this embodiment device.
FIG. 2 is an external plan view seen from the direction of the large arrow. This device consists of a plastic pipe feeding mechanism part A located diagonally below, a plastic pipe opening guide part B located diagonally above the mechanism part A, and a plastic pipe guide arranged along both parts A and B. A main body consisting of a core part C and an interference avoidance part D occupying a position close to the intermediate rear side of the core part C, and a hanging holder for setting this main body to an insertion position close to the special high voltage distribution line 4. It consists of part E.
ポリ管送り機構部Aは、吊下げ保持部Eに昇降
自在に吊下げ保持される基板11の表側に、片持
式に水平に4本のローラ支持軸12が上下、左右
にそれぞれ固定され、この各支持軸12に、前端
部にローラ13、後端部に被動スプロケツトホイ
ール14をそれぞれ固定した中空軸15が回転自
在にはめあわされることによつて上下一対のロー
ラ13からなる2組の送りローラが並設され、こ
の送りローラに耳部3を挟持させて送り出させる
ようにしたもので、駆動機構は、基板1に片持式
に回転自在に保持させた2本の駆動軸16を上下
に配置し、この各駆動軸16に歯車7と2個の同
じ駆動スプロケツトホイール18をそれぞれ固定
するとともに、下方に位置する駆動軸16を、基
板1の裏側に片持式に取付けた油圧モータ19の
出力軸に接続することによつて構成されている。
そして各駆動軸16に固定された歯車17はたが
いにかみあわされ、駆動スプロケツトホイール1
8と被動スプロケツトホイール14とにはそれぞ
れエンドレスのチエーンが掛け渡されている。前
記送りローラの各ローラ13は、ソリツドゴムタ
イヤ付きのもので、上下に配置されたローラ13
の間にはわずかの隙間が保たれるようにローラ1
3の外径寸法がとられている。 In the polyurethane tube feeding mechanism section A, four roller support shafts 12 are fixed horizontally in a cantilevered manner on the front side of a substrate 11 which is suspended and held by a suspension holding section E so as to be able to rise and fall freely, and on the top and bottom, left and right sides, respectively. A hollow shaft 15 having a roller 13 fixed to the front end and a driven sprocket wheel 14 fixed to the rear end is rotatably fitted to each support shaft 12, thereby forming two sets of upper and lower rollers 13. Feed rollers are arranged in parallel, and the feed rollers sandwich the ear part 3 and feed it. A gear 7 and two identical drive sprocket wheels 18 are fixed to each of the drive shafts 16, respectively, and the drive shaft 16 located at the bottom is connected to a hydraulic shaft mounted in a cantilever manner on the back side of the base plate 1. It is configured by being connected to the output shaft of the motor 19.
The gears 17 fixed to each drive shaft 16 are meshed with each other, and the drive sprocket wheel 1
8 and the driven sprocket wheel 14, an endless chain is stretched between them. Each roller 13 of the feed rollers is equipped with a solid rubber tire, and the rollers 13 arranged above and below each other.
Roller 1 so that there is a small gap between
The outer diameter dimension of 3 is taken.
ポリ管送り機構部Aの駆動機構が前記のように
構成されているので、送りローラの駆動に当つて
は小形ながら駆動トルクが大きい油圧モータ19
を、出力軸がそれに向つて反時計方向に回転する
ように運転すると、上側に配設されたローラ13
はいずれも矢印で示す時計方向に、下側に配設さ
れたローラ13はいずれも矢印で示す反時計方向
にそれぞれ積極的に回転駆動される。 Since the drive mechanism of the plastic tube feed mechanism section A is configured as described above, the hydraulic motor 19, which is small but has a large drive torque, is used to drive the feed roller.
is operated so that the output shaft rotates counterclockwise toward it, the roller 13 disposed on the upper side
are actively rotated in the clockwise direction indicated by the arrows, and the rollers 13 disposed below are actively rotated in the counterclockwise direction indicated by the arrows.
このことは、たとえば22KVおよび33KVの電
圧に対して十分な絶縁性をもたせたポリ管1は、
従来の6.6KVの電圧に耐えるものより若干肉厚が
厚くされており、柔軟性の点でやや劣ることか
ら、その一対の耳部3をローラ13間の前記隙間
に第6図に示すようにかましてポリ管1を送り出
す際にかなり大きい抵抗が生ずるが、この抵抗に
打ち克ち、しかもスリツプを伴うことなしにポリ
管1を送り出すことを可能ならしめる。 This means that, for example, the polyethylene pipe 1 with sufficient insulation against voltages of 22KV and 33KV,
Since the wall thickness is slightly thicker than the conventional one that can withstand a voltage of 6.6KV, and the flexibility is slightly inferior, the pair of ears 3 is inserted into the gap between the rollers 13 as shown in FIG. Although a considerably large resistance occurs when the polyester tube 1 is fed out, this resistance can be overcome and the polyester tube 1 can be fed out without slipping.
この場合、ローラ13はポリ管1の耳部3と接
触する前記ソリツドタイヤの部分13′が弾性変
形するが、同時にローラ13を介してローラ支持
軸12の上下の軸間距離を拡かせようとする力が
各支持軸12に作用する。そのため、上下一対の
支持軸12は、その端面を連結板10を介して連
結することによつて補強がなされている。 In this case, the roller 13 is elastically deformed at the portion 13' of the solid tire that comes into contact with the ear 3 of the polyester tube 1, but at the same time, the distance between the upper and lower roller support shafts 12 is expanded through the rollers 13. A force acts on each support shaft 12. Therefore, the pair of upper and lower support shafts 12 are reinforced by connecting their end faces via the connecting plate 10.
ポリ管開口案内部Bは、ポリ管案内用芯部Cに
挿入され、耳部3が送りローラに挟持されて前記
芯部Cにそつて送り出されてくるポリ管1の内壁
面に接触し、それにほぼ直径にそつた外向きの力
を付与することによつて開口部2、一対の耳部3
の隙間を配電線4の直径より十分大きく拡げる用
をなすものであり、前記芯部Cの案内ロツド21
の先端部に接続され、それと一体の鉛直面をなす
平坦部を備えており、この平坦部にその上側寄り
に小径のミニチユアベアリングからなる自由回転
ローラ22を複数個(この例では5個)適当な間
隔にて直線状に配設するとともに、その下側寄り
にやや径の大きい同じくミニチユアベアリングか
らなる自由回転ローラ23を複数個(この例では
6個)直線状に、かつ前記ローラ22に対して千
鳥配置をなし、両ローラ22,23のそれぞれ外
側接線間の間隔がポリ管1の内径より十分に大き
くなるように配設することによつて構成されてい
る。 The plastic pipe opening guide part B is inserted into the plastic pipe guiding core part C, and the ear part 3 comes into contact with the inner wall surface of the plastic pipe 1 that is being fed out along the core part C while being held by the feeding rollers, By applying an outward force approximately along the diameter thereof, the opening 2, the pair of ears 3
The guide rod 21 of the core C is used to widen the gap sufficiently larger than the diameter of the distribution line 4.
It has a flat part that is connected to the tip of the roller and forms a vertical surface integral with it, and on the upper side of this flat part, there are a plurality of freely rotating rollers 22 (5 in this example) made of small-diameter miniature bearings. A plurality of freely rotating rollers 23 (six in this example) made of miniature bearings having a slightly larger diameter are arranged in a straight line at appropriate intervals, and a plurality of free rotating rollers 23 (six in this example) are arranged in a straight line on the lower side thereof, and the rollers 22 are arranged in a straight line at appropriate intervals. The rollers 22 and 23 are arranged in a staggered manner so that the distance between the outer tangent lines of the rollers 22 and 23 is sufficiently larger than the inner diameter of the polyester pipe 1.
ポリ管案内用芯部Cは、配電線4とほぼ同等の
太さの断面形状が円形の案内ロツド21を、その
長さのほぼ1/3程の部分にて基板11に片持式に
固定された支持腕24に溶接などにより固定する
とともに、ほぼ中間部を干渉回避部Dに取付けた
補助腕25に支持させることによつて、その軸線
が送りローラの前面に近接し、かつその送り出し
方向に一致するようにしてある。 The polyester pipe guide core C has a guide rod 21 having a circular cross-section and approximately the same thickness as the distribution line 4, fixed to the board 11 in a cantilever manner at a portion approximately 1/3 of its length. By fixing the support arm 24 to the support arm 24 by welding or the like, and by supporting the auxiliary arm 25 approximately in the middle part attached to the interference avoidance part D, its axis is close to the front surface of the feed roller and the direction of the feed roller is fixed. It is made to match.
ただし、案内ロツド21は、その軸線がポリ管
開口案内部Bとの接続部と、ポリ管送り機構部A
の送りローラに接近する部分とで前者においては
わずかに、後者においてはかなり大きくそれぞれ
下方に折り曲げてあり、ポリ管1の案内ロツド2
1への挿入、ポリ管1の配電線4への挿入をそれ
ぞれ行い易いようにされている。 However, the axis of the guide rod 21 is connected to the connection part with the plastic pipe opening guide part B and the plastic pipe feeding mechanism part A.
The guide rod 2 of the plastic pipe 1 is bent slightly downward in the former and considerably bent downward in the latter.
1 and the plastic pipe 1 into the distribution line 4, respectively.
干渉回避部Dは、配電線4に後記するようにポ
リ管開口案内部Bを接近させ、ポリ管1を、案内
ロツド21にそつて送りローラによつて送り出し
てゆく過程において、ポリ管1の耳部3、とくに
上側に位置する耳部3が配電線4に干渉しないよ
うに、上側の耳部3を配電線4よりわずかに上方
へ押上げるためのもので、基板11に片持式に保
持された1対の支持軸26に、弓形状に成形した
支持板27を固定し、その上側寄りにミニチユア
ベアリングからなる自由回転ローラ28を複数個
(この例では5個)を適当な間隔にて配設するこ
とによつて構成されている。 The interference avoidance section D moves the polyethylene tube opening guide section B close to the distribution line 4 as described later, and in the process of feeding the polyester tube 1 along the guide rod 21 by the feed roller, the interference avoidance section D prevents the This is to push the upper ear part 3 slightly upwards from the power distribution line 4 so that the ear part 3, especially the ear part 3 located on the upper side, does not interfere with the power distribution line 4. A bow-shaped support plate 27 is fixed to the supported pair of support shafts 26, and a plurality of freely rotating rollers 28 (in this example, five) made of miniature bearings are attached at appropriate intervals near the upper side of the support plate 27. It is configured by arranging the
吊下げ保持部Eは、前記したポリ管送り機構部
A、開口案内部B、案内用芯部Cおよび干渉回避
部Dからなる本体を高圧配電線4に近接した挿入
位置にセツトするためのものであり、基板11に
取付けたガイドブラケツト29が摺動自在に係合
される機械的強度ならびに電気絶縁性能にすぐれ
たガラス繊維強化プラスチツク、いわゆるFRP
材のパイプ状支柱30、この支柱30の上端部に
設けられた配電線4への固定部31、この固定部
31に配電線4を挟持固定する動作を行わせる操
作部32および前記本体を、基板11に連結され
た電気絶縁性の良好なナイロンロープ33を巻取
りもしくは繰出すことにより前記支柱30にそつ
て上昇もしくは下降させる巻取り装置34から構
成されている。 The hanging holding part E is for setting the main body consisting of the above-mentioned polyethylene pipe feeding mechanism part A, opening guide part B, guiding core part C and interference avoidance part D to an insertion position close to the high voltage distribution line 4. The guide bracket 29 attached to the board 11 is slidably engaged with glass fiber reinforced plastic, so-called FRP, which has excellent mechanical strength and electrical insulation performance.
A pipe-shaped support 30 made of wood, a fixing part 31 to the power distribution line 4 provided at the upper end of the support 30, an operation part 32 that causes the fixing part 31 to perform an operation of clamping and fixing the power distribution line 4, and the main body, It is comprised of a winding device 34 that raises or lowers a nylon rope 33 with good electrical insulation connected to the substrate 11 along the pillar 30 by winding or letting it out.
固定部31は、第1図においてそれを矢印方向
にみた第5図に示す部分外形側面図にみられるよ
うに、支柱30の上端部に接続したブラケツト3
5から、先端部を120゜の角度をなしてくの字形に
折曲げた支持板36が張出して固定され、この支
持板36の下面に固定したガイド37に、先端部
が120゜の角度をなす逆くの字形に成形された挟持
板38が摺動自在に係合されており、この挟持板
38の後端面の下稜部が後記する操作部32の先
端円錐部に、前記ガイド37に内装された圧縮コ
イルばね(図示せず)の弾発力によつて常時接触
を保つようにされている。 The fixing part 31 is a bracket 3 connected to the upper end of the support column 30, as seen in the partial external side view shown in FIG. 5 when viewed in the direction of the arrow in FIG.
5, a support plate 36 with a tip bent at an angle of 120 degrees is fixed in a protruding manner. A holding plate 38 formed in an inverted dogleg shape is slidably engaged, and the lower ridge of the rear end surface of this holding plate 38 is connected to the conical end portion of the operating section 32 (to be described later). The contact is maintained at all times by the elastic force of a compression coil spring (not shown).
操作部32は、前記円錐部を先端に有する作動
部39と、それに接続され、前記ブラケツト35
に固定したナツト部に螺合するねじ部とを上端部
に備えた操作ロツド40が支柱30の内部空間に
とおされて、その上部、下部に設けられた軸受部
(図示せず)により回動自在に支持されており、
その下端部に操作用ノブ41が固定されているも
のである。そして作動部39、前記ねじ部、操作
ロツド40および操作用ノブ41はいずれも電気
絶縁性能ならびに機械的強さにすぐれた樹脂材、
たとえばポリアセタールなどで形成されている。 The operating section 32 includes an operating section 39 having the conical section at its tip, and is connected to the operating section 39 and the bracket 35.
An operating rod 40, which has a threaded portion at its upper end that is screwed into a nut fixed to the rod, is passed through the internal space of the column 30, and is rotated by bearings (not shown) provided at the upper and lower portions of the rod. freely supported,
An operating knob 41 is fixed to its lower end. The operating portion 39, the threaded portion, the operating rod 40, and the operating knob 41 are all made of resin material with excellent electrical insulation performance and mechanical strength.
For example, it is made of polyacetal.
巻取り装置34は、支持板36の上部に固定し
た支持枠に回転自在に支持される1対の滑車42
と、支柱30の下端部寄りの部分に第4図の部分
外側面図に示すように、固定した枠組に取付けた
巻取りドラム43と、基板11に端部を連結し、
もう一方の端部を前記1対の滑車42をへて巻取
りドラム43に連結したナイロンロープ33とか
らなり、把手44にて巻取りドラム43を回転す
ることによつてロープ33を巻取れば、本体をガ
イドブラケツト29により支柱30にそわせて引
上げることができ、引上げた任意の高さ位置に本
体を保持しておけるために巻取りドラム43の駆
動軸と前記枠組との間にラチエツト機構45が設
けられている。 The winding device 34 includes a pair of pulleys 42 rotatably supported by a support frame fixed to the upper part of the support plate 36.
As shown in the partial external side view of FIG. 4, a winding drum 43 is attached to a fixed frame near the lower end of the support 30, and its end is connected to the base plate 11.
It consists of a nylon rope 33 whose other end is connected to a winding drum 43 through the pair of pulleys 42, and the rope 33 is wound up by rotating the winding drum 43 with a handle 44. The main body can be pulled up along the support column 30 by the guide bracket 29, and a ratchet is provided between the drive shaft of the winding drum 43 and the framework in order to hold the main body at the desired raised position. A mechanism 45 is provided.
本体を、前記した巻取り装置34によつて支柱
33にそつて引上げ、ほぼ水平に架設されている
配電線4に接近させてセツトする場合には、ポリ
管開口案内部Bを水平に保ち、その軸線が配電線
4の軸線を含む平面に位置するようにし、かつ両
軸線がポリ管開口案内部Bの先端部近傍において
第2図に示すとおりたがいに交差するようにし、
ポリ管開口案内部Bから、耳部3および開口部2
が拡げられて送り出されてくるポリ管1が配電線
4に挿入し易いようにしておくことを要する。 When the main body is pulled up along the pillar 33 by the winding device 34 described above and set close to the distribution line 4 installed almost horizontally, the polyester pipe opening guide part B is kept horizontally, Its axis is located on a plane containing the axis of the distribution line 4, and both axes intersect with each other near the tip of the polyester pipe opening guide part B as shown in FIG.
From the plastic pipe opening guide part B, the ear part 3 and the opening part 2
It is necessary to make it easy for the expanded polyethylene pipe 1 to be inserted into the distribution line 4.
そのために、基板11には、支柱30の上端部
に接続した支持板36との位置決めを行うために
切欠きが施されているとともに、案内ロツド21
が配電線4に対して、水平面においては第2図に
示すようにその手前にて約5゜程度の角度をなし、
かつ鉛直面においては第1図に示すようにその下
方にて約10゜程度の角度をなすようにガイドブラ
ケツト29が取付けられ、さらにこのガイドブラ
ケツト29が、配電線4に固定部31により第5
図に示すとおり固定される支柱30に対して、ガ
イドブラケツト29に施したキー溝(図示せず)
に支柱30の軸線にそつて設けたキー46を係合
させることによつて、一定の関係角度位置に保持
されている。 For this purpose, the board 11 is provided with a notch for positioning it with the support plate 36 connected to the upper end of the support column 30, and the guide rod 21
forms an angle of about 5° in front of the distribution line 4 in the horizontal plane, as shown in Figure 2.
In addition, in the vertical plane, a guide bracket 29 is attached below the guide bracket 29 at an angle of about 10 degrees as shown in FIG.
A keyway (not shown) provided in the guide bracket 29 for the support column 30 that is fixed as shown in the figure.
It is held in a constant relative angular position by engaging a key 46 along the axis of the post 30.
また支柱30およびそれに保持される操作部3
2は、22もしくは33KV配電線からの漏洩電流に
より帯電した電荷を放電するために、支柱30の
下端部には、アース用の端子47が植えこまれて
いる。なお油圧モータ19は、油圧源装置(図示
せず)に、作動油の供給管路および排出管路をな
すプラスチツクまたは耐油性ゴムからなる高圧ホ
ース48,49によつてそれぞれ接続されてい
る。 Also, the support column 30 and the operation unit 3 held therein.
2, a grounding terminal 47 is embedded in the lower end of the support column 30 in order to discharge charges accumulated due to leakage current from the 22 or 33KV distribution line. The hydraulic motor 19 is connected to a hydraulic power source (not shown) through high-pressure hoses 48 and 49 made of plastic or oil-resistant rubber and forming a supply line and a discharge line for hydraulic oil, respectively.
つぎにこの装置における動作について説明す
る。 Next, the operation of this device will be explained.
たとえば油圧式の昇降台を備えた保線作業車の
昇降台に、この装置の支柱30および本体、吊上
げ工具、油圧バルブ、ホースを搭載し、ホース4
8,49を、前記作業車の油圧源装置の高圧油
路、排出油路にそれぞれ接続するとともに、アー
ス用端子47に接地した導線を接続しておく。こ
のように準備した保線作業車を、防護工事を施す
配電線4の下方に停め、ついでその昇降台を上昇
させ、それに固定した支柱30を固定部31にて
第5図に示すように配電線4に固定する。 For example, the support 30, main body, lifting tool, hydraulic valve, and hose of this device are mounted on the lifting platform of a track maintenance vehicle equipped with a hydraulic lifting platform, and the hose 4
8 and 49 are connected to the high-pressure oil passage and discharge oil passage of the hydraulic power source device of the working vehicle, respectively, and a grounded conducting wire is connected to the ground terminal 47. The line protection work vehicle prepared in this way is parked below the distribution line 4 to be protected, and then the elevating platform is raised, and the support 30 fixed thereto is attached to the fixed part 31 to move the distribution line 4 as shown in FIG. Fixed at 4.
この固定に当つては、予め操作部32のノブ4
1を回わして作動部39を若干引下げることによ
つて挟持板38を弾発的に後退させておき、支持
板36、挟持板38のそれぞれ先端部間に配電線
4を十分に挿入できる隙間を作つておく。そして
支柱30の前記昇降台に対する固定位置を適宜修
整して前記隙間に配電線4が収まるようにし、ノ
ブ41を前記とは反対方向にまわして、作動部3
9を押し上げ、その前記円錐部にて挟持板38
を、弾発力に抗して押し出させ、配電線4を支持
板36、挟持板38のそれぞれ先端部にて挟持固
定すればよい。 For this fixing, please prepare the knob 4 of the operating section 32 in advance.
1 and slightly pulls down the actuating part 39, the clamping plate 38 is elastically retracted, and the distribution line 4 can be fully inserted between the tips of the supporting plate 36 and the clamping plate 38, respectively. Leave a gap. Then, adjust the fixed position of the support column 30 with respect to the lifting platform as appropriate so that the power distribution line 4 fits into the gap, turn the knob 41 in the opposite direction, and then
9 and press the holding plate 38 with its conical part.
is pushed out against the elastic force, and the power distribution line 4 is clamped and fixed at the tips of the support plate 36 and the clamp plate 38, respectively.
つぎに配電線4の防護を要する長さに等しくな
るように、たとえば単位長さが3mの22KVおよ
び33KVの電圧に対して十分な耐圧を有するポリ
管1を、前記コネクターを介してたがいに端部に
て接続してから、このポリ管1を耳部3が基板1
1側に向くようにポリ管案内用芯部Cの案内ロツ
ド21に挿入し、油圧モータ19を運転してポリ
管送り機構部Bの各ローラ13を矢印方向に回転
駆動させた送りローラに耳部3を、挟持させて送
り出させ、このポリ管1の先端が干渉回避部Dの
直前位置に到達するまで送り出せたならば、油圧
モータ19の運転を停止する。 Next, polyethylene pipes 1 having a unit length of 3 m and having sufficient withstand voltage for voltages of 22 KV and 33 KV are connected to each other via the connector so that the length of the distribution line 4 is equal to the length that requires protection. After connecting this poly tube 1 with the ear part 3 connected to the board 1
Insert it into the guide rod 21 of the plastic tube guide core C so that it faces the 1 side, and drive the hydraulic motor 19 to rotate each roller 13 of the plastic tube feed mechanism section B in the direction of the arrow. When the section 3 is clamped and sent out until the tip of the polyester pipe 1 reaches a position immediately before the interference avoidance section D, the operation of the hydraulic motor 19 is stopped.
このように案内ロツド21にポリ管1を挿入し
た状態で、把手44をまわし、ナイロンロープ3
3を巻取りドラム43に巻取り、本体を支柱30
にそつて引上げ、ポリ管開口案内部Bの先端部
を、その軸線がたとえば水平に架設された配電線
4の軸線と同一平面に位置するようにして配電線
4にできるだけ近付けて保持する。ついで油圧モ
ータ19を再び運転すると、案内ロツド21に挿
入されたポリ管1はそれにそつて送り出されてゆ
き、基板11側に向いている耳部3の上側のもの
がその裏面にて干渉回避部Dの自由回転ローラ2
8に接触させられる。このローラ28は前記した
とおり支持板27に中高の弓形状に配設されてい
ることから、ポリ管1が案内ロツド21にそつて
前進するにつれて上側の耳部3は、ローラ28に
よつて持ち上げられ、支持板27の後方にそれに
近接して架設されている配電線4の上方をすれす
れに通過させられることになり、配電線4との干
渉が回避される。そしてさらに案内ロツド21に
そつて送り出されるポリ管1は、上側の耳部3の
みが部分的に配電線4に接触しながら、ポリ管開
口案内部Bに送りこまれる。ポリ管開口案内部B
に送りこまれたポリ管1はその内壁面が上側では
自由回転ローラ22に、下側では自由回転ローラ
23にそれぞれ接触させられるので、ほぼ直径方
向で外向きに押し拡げられ、開口部2、耳部3の
それぞれ隙間が配電線4の直径より十分に大きく
拡げられることとなる。 With the polyethylene pipe 1 inserted into the guide rod 21 in this way, turn the handle 44 and tighten the nylon rope 3.
3 on the winding drum 43, and the main body is attached to the support 30.
The distal end of the plastic pipe opening guide B is held as close to the distribution line 4 as possible so that its axis is located on the same plane as the axis of the distribution line 4 installed horizontally, for example. Then, when the hydraulic motor 19 is operated again, the plastic pipe 1 inserted into the guide rod 21 is fed out along it, and the upper part of the ear part 3 facing the board 11 side is moved to the interference avoidance part on the back side. D free rotating roller 2
8. As described above, the rollers 28 are arranged in the shape of a medium-high arch on the support plate 27, so as the plastic pipe 1 moves forward along the guide rod 21, the upper ear 3 is lifted up by the rollers 28. This allows the support plate 27 to be passed closely over the power distribution line 4 installed behind and close to the support plate 27, thereby avoiding interference with the power distribution line 4. The polyester pipe 1 that is further fed out along the guide rod 21 is fed into the polyester pipe opening guide section B with only the upper ear portion 3 partially in contact with the power distribution line 4. Plastic pipe opening guide part B
The inner wall surface of the plastic pipe 1 fed into the tube is brought into contact with the free rotating roller 22 on the upper side and the free rotating roller 23 on the lower side, so that it is pushed outward in the approximately diametrical direction, and the opening 2 and the ear are brought into contact with each other. Each gap between the portions 3 is expanded to be sufficiently larger than the diameter of the power distribution line 4.
この状態にてポリ管1がポリ管開口案内部Bか
ら押し出されてくるので、ポリ管1は開口部2か
ら配電線4に円滑に順次挿入されてゆき、配電線
4に挿入されたポリ管1はそれ自身の有する弾性
によつて元の形状に復元し、さらに耳部3の自重
によつて徐々にねじれ、90゜回動し第4図に示し
た状態にて配電線4に装着されることとなる。な
おポリ管1の末端部が送りローラからはずれる
と、ポリ管案内用芯部Cにそつての送り出しは不
可能となるので、ポリ管1の末端部には、案内ロ
ツド21の長さより十分に長い補助ポリ管を適当
な継手で接離自在に接続しておき、この補助ポリ
管を介してポリ管1を末端部まで配電線4に装着
し終えたならば油圧モータ19を逆転さして補助
ポリ管を装着したポリ管1から切り離すようにす
ればよい。さらに支柱30を固定部31により配
電線4に固定する場合に、本体を基板11ととも
にガイドブラケツト29から取りはずし、本体
を、基板11にロープ33を連結したまま前記作
業車の昇降台上にあずけ、支柱30のみを前記の
とおり配電線4に固定し、ついで巻取り装置34
により本体を吊上げながら、基板11をガイドブ
ラケツト29に結合するようにすればセツテイン
グ作業がやり易い。 In this state, the plastic pipe 1 is pushed out from the plastic pipe opening guide part B, so the plastic pipe 1 is smoothly and sequentially inserted into the distribution line 4 from the opening 2. 1 is restored to its original shape by its own elasticity, and then gradually twisted by the weight of the ear part 3, rotated by 90 degrees, and is attached to the distribution line 4 in the state shown in Fig. 4. The Rukoto. Note that if the end of the plastic pipe 1 comes off the feed roller, it will not be possible to feed it along the plastic pipe guiding core C. A long auxiliary polyester pipe is connected so as to be detachable with a suitable joint, and once the polyester pipe 1 has been attached to the distribution line 4 up to the end via this auxiliary polyester pipe, the hydraulic motor 19 is reversed and the auxiliary polyester pipe is connected. What is necessary is just to separate it from the plastic pipe 1 to which the pipe is attached. Furthermore, when fixing the support column 30 to the distribution line 4 using the fixing part 31, the main body is removed from the guide bracket 29 together with the board 11, and the main body is placed on the lifting platform of the work vehicle with the rope 33 connected to the board 11, Only the support column 30 is fixed to the distribution line 4 as described above, and then the winding device 34
If the board 11 is connected to the guide bracket 29 while lifting the main body, the setting work can be easily performed.
以上の説明によつて明らかなようにこの考案に
かかる特別高圧配電線への防護管挿入装置におい
ては、ポリ管挿入位置にこの装置をセツトするに
当つて、22KVおよび33KVと格段に昇圧された
配電線に対し、十分な絶縁性を有する支柱を少く
とも規定された安全接近距離以上架線から離れた
箇所での操作で固定し、ついで同じく離れた箇所
で巻取り装置を操作し絶縁性能の良好なロープを
介して本体を架線に接近した位置に吊上げ保持し
うるようにされているとともに、ポリ管送り機構
部の駆動に油圧モータが用いられ、従来の電気モ
ータの場合のように導線がリーク媒体となるおそ
れが皆無にされていることから、従来に比しはる
かに高い電圧の配電線に通電状態にてポリ管を挿
入する防護工事を従来と同程度の絶縁防具を装着
した作業者により全く感電のおそれなく安全に実
施することができる。また、ポリ管送り機構部の
送りローラがトルクの大きな油圧モータによつて
積極的に駆動するようにされ、送りローラの支持
軸の剛性も高められているので、若干肉厚が厚く
され、柔軟性の点でやや劣り、送り出し時の抵抗
が大きい前記電圧に耐えるポリ管を円滑に送り出
し、配電線に短時間に容易に装着することができ
る。 As is clear from the above explanation, in the device for inserting protective tubes into special high voltage distribution lines according to this invention, when the device is set at the polyethylene tube insertion position, the voltage is significantly increased to 22KV and 33KV. Fix a pole with sufficient insulation to the distribution line at a location that is at least a specified safe approach distance away from the overhead line, and then operate a winding device at a location that is also far away to ensure good insulation performance. The main body can be lifted and held in a position close to the overhead wire via a rope, and a hydraulic motor is used to drive the plastic pipe feeding mechanism, so there is no leakage of the conductor like in the case of conventional electric motors. Since there is no risk of it becoming a medium, workers wearing the same level of insulating protective equipment as before can carry out protective work that involves inserting live polyethylene pipes into distribution lines with much higher voltages than before. It can be carried out safely without any fear of electric shock. In addition, the feed roller of the plastic pipe feed mechanism is actively driven by a high-torque hydraulic motor, and the rigidity of the feed roller support shaft has been increased, making the wall slightly thicker and more flexible. Polyester pipes that withstand the voltage, which is somewhat inferior in terms of performance and has a large resistance during feeding, can be smoothly fed out and easily attached to power distribution lines in a short time.
第1図はこの考案にかかる実施例装置の外形正
面図、第2図は、その太い矢印方向からみた外形
平面図、第3図はこの装置の吊下げ保持部の一部
をなす巻取り装置を示す部分外形側面図、第4図
は配電線に対するポリ管の装着状態を示す断面
図、第5図はこの装置の吊下げ保持部の一部をな
す固定部を示す部分外形側面図、第6図はこの装
置の送り機構部の送りローラによるポリ管の送り
動作状態を示す部分断面図である。
1……防護管(ポリ管)、2……開口部、3…
…耳部、4……配電線、11……基板、13……
ローラ、14……被動スプロケツトホイール、1
7……歯車、18……駆動スプロケツトホイー
ル、19……油圧モータ、21……案内ロツド、
22,23,28……自由回転ローラ、29……
ガイドブラケツト、30……支柱、31……固定
部、33……ナイロンロープ、34……巻取り装
置、36……支持板、38……挟持板、39……
円錐部を有する作動部、40……操作ロツド、4
1……ノブ、42……滑車、43……巻取りドラ
ム、A……ポリ管送り機構部、B……ポリ管開口
案内部、C……ポリ管案内用芯部、D……干渉回
避部、E……吊下げ保持部。
Fig. 1 is a front view of the external appearance of an embodiment of the device according to this invention, Fig. 2 is a plan view of its external form as seen from the direction of the bold arrow, and Fig. 3 is a winding device forming a part of the hanging holding part of this device. Figure 4 is a cross-sectional view showing how the plastic pipe is attached to the distribution line; Figure 5 is a partial side view showing the fixing part that forms part of the hanging holding part of this device; FIG. 6 is a partial cross-sectional view showing the feeding operation of the plastic tube by the feeding roller of the feeding mechanism section of this device. 1...Protective tube (polymer pipe), 2...Opening, 3...
... Ear part, 4 ... Distribution line, 11 ... Board, 13 ...
Roller, 14... Driven sprocket wheel, 1
7... Gear, 18... Drive sprocket wheel, 19... Hydraulic motor, 21... Guide rod,
22, 23, 28...free rotation roller, 29...
Guide bracket, 30... Support column, 31... Fixed part, 33... Nylon rope, 34... Winding device, 36... Support plate, 38... Holding plate, 39...
Actuating part having a conical part, 40... Operating rod, 4
1...knob, 42...pulley, 43...winding drum, A...polymer tube feeding mechanism section, B...polymer tube opening guide section, C...polymer tube guiding core, D...interference avoidance Part, E... Hanging holding part.
Claims (1)
し、回転するローラに、丸パイプ状をなし、そ
の外周面に軸線方向にそつて全長にわたり開口
部が形成されるとともに、その開口部の、互い
に対向する各端部にそれぞれ一体に、軸線方向
にそつて全長にわたり一対の耳部が対向して突
出形成された感電防止用防護管の前記耳部を挿
入、挟持せしめ感電防止用防護管を送り出す防
護管送り機構部と、この防護管送り機構部の斜
め上方に設けられ、自由回転するローラを対向
させ、各ローラの外側接線間の間隔が感電防止
用防護管の内径より大きくなるように配設し、
前記防護管送り機構部により送り出される感電
防止用防護管をその開口部および耳部のそれぞ
れ間隙が配電線の太さより十分に拡がるように
拡張させる防護管開口案内部と、この防護管開
口案内部と前記防護管送り機構部との両部にそ
つて配設され、感電防止用防護管を外挿案内す
る断面円形の防護管案内用芯部と、前記防護管
送り機構部、防護管案内用芯部および防護管開
口案内部からなる本体を配電線に対し一定の傾
斜姿勢を保たしめて吊下げ、前記防護管開口案
内部の先端を配電線に近接せしめて固定する吊
下げ固定部とを備えてなる配電線への防護管挿
入装置において、前記モータに油圧モータを使
用するとともに、前記本体を前面に保持する基
板を設け、この基板を、上端部に配電線に対す
る固定部を備えた電気絶縁材からなる支柱にガ
イドブラケツトを介して摺動自在に係合し、さ
らに前記固定部の側方に滑車を、前記支柱の下
部に巻取りドラムをそれぞれ設け、電気絶縁性
ロープの一端を前記基板に、その他端を前記滑
車をへて前記巻取りドラムにそれぞれ連結した
ことを特徴とする特別高圧配電線への防護管挿
入装置。 2 基板をガイドブラケツトを介して摺動自在に
保持する支柱が電気絶縁材のパイプ状のもので
あるとともに、この支柱を配電線に保持させる
固定部が、前記支柱の上端部に片持式に固定
し、先端部を折曲げた支持板と、この支持板に
摺動自在に結合した挟持板とから構成され、さ
らにこの挟持板の後端部に接触する円錐部を先
端に有し、前記パイプ状支柱の内部に収めら
れ、両者間に介在させたねじ送り機構により回
動自在に前記支柱に保持される電気絶縁材の操
作ロツドを前記支柱の下端部から突出させて設
け、この突出部を回動させることにより前記円
錐部を押し上げ、前記挟持板を押し出させ、前
記支持板と挟持板のそれぞれ端部間に配電線を
挟持固定させるものである実用新案登録請求の
範囲第1項記載の特別高圧配電線への防護管挿
入装置。[Scope of Claim for Utility Model Registration] 1. Rollers that are rotationally driven by a motor are disposed facing each other, and the rotating rollers have a round pipe shape and an opening is formed on the outer circumferential surface of the roller along the entire length along the axial direction. and inserting the ear portions of a protective tube for preventing electric shock, which has a pair of ear portions facing each other and protruding over the entire length along the axial direction, integrally into each of the mutually opposing ends of the opening; A protective tube feeding mechanism section that sends out a protective tube for preventing electric shock by clamping it, and rollers that are installed diagonally above this protective tube feeding mechanism section and rotate freely, and the interval between the outer tangents of each roller is a protective tube for preventing electric shock. Arranged so that it is larger than the inner diameter of the pipe,
A protective tube opening guide section that expands the electric shock prevention protective tube sent out by the protective tube feeding mechanism section so that the gap between the opening and the ear is sufficiently wider than the thickness of the distribution line; and the protective tube opening guide section. and the protective tube feeding mechanism section, a protective tube guiding core section having a circular cross section for externally guiding the protective tube for preventing electric shock, and the protective tube feeding mechanism section and the protective tube guiding core section. A suspension fixing part that suspends a main body consisting of a core part and a protective pipe opening guide part while maintaining a certain inclined attitude relative to a power distribution line, and fixes the tip of the protective pipe opening guide part in close proximity to the power distribution line. In the apparatus for inserting a protective tube into a power distribution line, a hydraulic motor is used as the motor, and a board for holding the main body on the front is provided, and this board is connected to an electric The electric insulating rope is slidably engaged with a column made of an insulating material via a guide bracket, and furthermore, a pulley is provided on the side of the fixed part, a winding drum is provided at the bottom of the column, and one end of the electrically insulating rope is attached to the column. A device for inserting a protective tube into an extra high voltage distribution line, characterized in that the protective tube is connected to the substrate and the other end is connected to the winding drum via the pulley. 2. The support that slidably holds the board via the guide bracket is a pipe-shaped piece made of electrically insulating material, and the fixing part that holds this support to the distribution line is cantilevered at the upper end of the support. It is composed of a fixed support plate with a bent tip, and a clamping plate slidably connected to the support plate, and further has a conical part at its tip that contacts the rear end of the clamping plate, and An operating rod of an electrically insulating material is housed inside the pipe-shaped support and is rotatably held by the support by a screw feeding mechanism interposed between the two, and protrudes from the lower end of the support. Claim 1 of the Utility Model Registration Claim: By rotating the conical portion, the conical portion is pushed up, the holding plate is pushed out, and the distribution line is held and fixed between the ends of the support plate and the holding plate, respectively. Protective tube insertion device for special high voltage distribution lines.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10981684U JPS6125010U (en) | 1984-07-19 | 1984-07-19 | Protection tube insertion device for special high voltage distribution lines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10981684U JPS6125010U (en) | 1984-07-19 | 1984-07-19 | Protection tube insertion device for special high voltage distribution lines |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6125010U JPS6125010U (en) | 1986-02-14 |
JPH0321133Y2 true JPH0321133Y2 (en) | 1991-05-08 |
Family
ID=30668950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10981684U Granted JPS6125010U (en) | 1984-07-19 | 1984-07-19 | Protection tube insertion device for special high voltage distribution lines |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6125010U (en) |
-
1984
- 1984-07-19 JP JP10981684U patent/JPS6125010U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6125010U (en) | 1986-02-14 |
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