JP2016059215A - High voltage lead-in wire anchor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high voltage lead-in wire anchor insulator that can be installed easily on an arm metal.SOLUTION: A high voltage lead-in wire anchor insulator 5 has a body 10 consisting of a planar insulation member, and having four support arms 12a-12d extending radially from the central part, a hooking portion 14a formed at the tip of one support arm 12a, and hooked detachably to the support pin 58 of a high voltage lead-in wire anchor metal 50 fixed to the arm metal, and high voltage lead-in wire supports 14b-14d formed at the tip of other support arms 12b-12d, and supporting the high voltage lead-in wire grip 70 for supporting the high voltage lead-in wire.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a high-voltage underline tension insulator that is installed at a predetermined portion of a utility pole by an indirect hot wire method and retains a high-voltage underline that branches off from the high-voltage line.

  Conventionally, a high-voltage underline branched from a high-voltage line is disposed at a position spaced a predetermined distance from a utility pole via a high-voltage underline retainer (hereinafter simply referred to as a retainer) fixed to an end of a brace. Further, it is fixed to a high pressure underline drawing insulator (hereinafter simply referred to as a drawing insulator). Thereby, it is prevented that the high-pressure underline becomes an obstacle to the work on the column.

  Further, as this type of conventional technique, there is a technique described in Patent Document 1. In Patent Document 1, a retaining insulator is attached to a distal end portion of a retained object, and a proximal end portion of the retained object is hooked on a pin of a high-pressure insulator disposed on an upper surface of the end portion of the armor, thereby A configuration in which the retainer is fixed to the arm metal so that the insulator is suspended from the arm metal by the retainer is disclosed.

JP 2012-161198 A

  By the way, according to the technique described in Patent Document 1, it is necessary to perform an operation of hooking the retained metal article onto the pin of the high-pressure insulator after the retained insulator is installed on the retained metal object. Here, in the indirect hot wire construction method, an operation is performed in which a retained metal object is gripped by using a long indirect live wire tool having a gripping function at the tip, and lifted to approach the end of the arm metal. However, since the three high-pressure insulators are fixed to the retainer, the total weight of the object to be gripped by the indirect hot wire tool increases, and the work of installing the retainer on the armrest is a heavy burden on the worker. It has become.

  An object of the present invention is to provide a high-pressure underline drawing apparatus that solves such problems and makes it possible to easily install a high-pressure underline drawing insulator on a brace.

  In order to achieve the above object, the present invention has the following configuration.

  (1) A high-voltage underline detained object fixed to the end of the armature, a high-pressure underline detainer attached to the high-voltage underline detained object and supporting a high-pressure underline grip to which the high-voltage underline is fixed; The high-voltage underline retainer has a support pin for supporting the high-pressure underline retainer, and the high-pressure underline retainer is formed in a main body portion formed of a flat plate-like insulating member. And a latch part that is detachably hooked on the support pin, and a high-pressure underline support part that is formed in the main body part and supports a high-voltage underline grip attached to the high-voltage underline. High pressure underline drawing device.

  According to (1), since the latching portion is detachable from the high-voltage underline retainer, the high-pressure underline retainer is fixed to the arm and then the latch is attached to the high-pressure underline retainer. This makes it possible to install the high-voltage underline retaining insulator on the armor. For this reason, it becomes possible to disperse | distribute the weight of the components which an operator handles, and it becomes possible to aim at the installation work of the high voltage underline detention insulator by indirect hot-line work. In addition, the high-voltage underline tension insulator is made of a plate-like insulating member and includes a latching portion and a plurality of high-voltage underline support portions in one insulating member, so that the high-pressure underline tension insulator itself can be reduced in weight. Is possible. Thereby, it becomes possible to further facilitate the installation work of the high-pressure underline retaining insulator by the indirect hot wire work.

  (2) In (1), it further includes a lock portion that opens and closes the insertion port of the support pin formed in the latch portion, and the lock portion is provided when the latch portion is hooked on the support pin. A high-pressure underline drawing apparatus that closes the insertion port.

  According to (2), by having the lock portion, it is possible to prevent the high-voltage underline retainer from being detached from the high-pressure underline retainer after the high-pressure underline retainer is attached to the high-pressure underline retainer. It becomes possible to reliably prevent the high-voltage underline retaining insulator from dropping.

  (3) In (1) and (2), the high-pressure underline support part is formed at three positions on the main body part, and the hooking part and the three high-pressure underline support parts are each at a predetermined interval. A high-pressure underline drawing apparatus characterized by being arranged with a gap therebetween.

  According to (3), since the latching part and the plurality of high-voltage underline support parts are arranged at positions separated from each other, the distance between the high-pressure underlines with the high-voltage underline tension insulator installed on the arm metal Can be kept stable.

(4) In (3), the main body portion is formed in a cross shape, and the hook portion and the three high-pressure underline support portions are formed at a tip portion of the cross shape. Underline drawing device.
According to (4), it is possible to reduce the weight of the high-voltage underline retaining insulator. In addition, since the main body has a cross shape, when the high pressure underline is fixed to the three high pressure underline support portions, the posture of the high pressure underline tension insulator can be stabilized.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the high voltage underline drawing apparatus which makes it easy to install a high voltage underline drawing insulator on a brace.

It is explanatory drawing which shows the structure of the high voltage underline drawing apparatus 1 in one Embodiment of this invention. It is a perspective view which shows the state which installed the high voltage underline drawing apparatus 1 in one Embodiment of this invention in the brace. It is explanatory drawing which shows the state which fixed the high voltage underline 210 to the high voltage underline drawing insulator 5. FIG. It is explanatory drawing which shows the position of the high voltage underline.

FIG. 1 is an explanatory view showing a configuration of a high-voltage underline drawing apparatus 1 according to an embodiment of the present invention, and FIG. 2 shows a state in which the high-pressure underline drawing apparatus 1 according to an embodiment of the present invention is installed on a brace. It is a perspective view.
As shown in FIG. 1, the high-pressure underline drawing apparatus 1 includes a high-pressure underline drawing insulator 5 (hereinafter simply referred to as a drawing insulator 5) and a high-pressure underline drawing metal 50 (hereinafter simply referred to as a drawn metal 50). And is composed of.

  As shown in FIG. 2, the retainer 5 is installed on a retainer 50 fixed to the arm metal 100 and supports a high-pressure underline grip 70 wound around a high-voltage underline 210 (see FIG. 3).

  The tension insulator 5 includes a main body portion 10, a latching portion 14 a, high-voltage underline support portions 14 b to 14 d, a lock portion 16, and a rubber bush 20.

  The main body 10 is composed of a plate-shaped porcelain and has an insulating property. Moreover, the main-body part 10 is equipped with the four support arms 12a-12d each extended in a radial direction from the center part. According to the present embodiment, the four support arms 12a to 12d of the main body 10 extend in the cross direction, the support arm 12a and the support arm 12d are in the vertical direction, and the support arm 12b and the support arm 12c are in the horizontal direction. It extends.

  A hook-shaped hooking portion 14a is formed at the distal end portion of the support arm 12a, and hook-shaped high-voltage underline support portions 14b-14d are formed at the distal end portions of the support arms 12b-12d. The latching part 14a and the high-voltage underline support parts 14b to 14d are substantially the same shape, and the latching part 14a and the high-voltage underline support part 14d are point-symmetric with respect to the center of the main body part 10, and support the high-pressure underline support. The part 14b and the high-voltage underline support part 14c are line-symmetric with respect to a vertical virtual straight line passing through the center.

  The insertion port 15a of the latching portion 14a faces obliquely downward, and the insertion ports 15b to 15d of the high-voltage underline support portions 14b to 14d face obliquely upward.

  The latching part 14a is detachably hooked on the support pin 58 of the retainer 50. The high pressure underline support portions 14 b to 14 d support the high pressure underline grip 70. Here, the high-voltage underline grip 70 is a member formed by bending the center portion of the metal wire into a U shape and forming a spiral shape from the U-shaped portion to both ends. The U-shaped portion is passed through the high-voltage underline grip 70, whereby the high-pressure underline grip 70 is supported by the high-pressure underline support portions 14b to 14d.

  Moreover, the recessed parts 17a-17d are formed in the center of the outer peripheral part of the latching part 14a and the high voltage underline support parts 14b-14d. In a state where the high pressure underline grip 70 is supported by the high pressure underline support portions 14b to 14d, a part of the high pressure underline grip 70 is fitted into the recesses 17b to 17d, so that the high pressure underline grip 70 is It becomes difficult to remove from the support portions 14b to 14d.

  The lock portion 16 is rotatably provided on the side portion of the latch portion 14a, and closes the insertion port 15a of the latch portion 14a when the latch portion 14a is hooked on the support pin 58 of the retainer 50. The locking portion 14a is locked so as not to come off the support pin 58.

  The lock portion 16 includes a pressing piece portion 16a, an opening / closing piece portion 16b, and a rotating shaft 16c. The pressing piece portion 16 a is a rectangular plate-shaped piece that is disposed inside the latching portion 14 a and pressed by the support pin 58. The opening / closing piece 16b is a plate-like piece that extends in an arc from one end of the pressing piece 16a and opens and closes the insertion port 15a. The rotating shaft 16c is a columnar member that supports one end of the pressing piece 16a on the side of the latching portion 14a and rotatably supports the pressing piece 16a and the opening / closing piece 16b.

  When the latching portion 14 a is hooked on the support pin 58, the support pin 58 comes into contact with the pressing piece portion 16 a, and the pressing piece portion 16 a rotates by pressing from the support pin 58. The opening / closing piece 16b approaches the insertion port 15a in conjunction with the pressing piece 16a, and the insertion port 15a is closed by the opening / closing piece 16b.

  The rubber bush 20 is a C-shaped rubber member and is attached to the inside of the high-voltage underline support portions 14b to 14d. At this time, the C-shaped opening of the rubber bush 20 is directed toward the insertion openings 15b to 15d. In addition, when the support pin 58 is comparatively thin, you may attach the rubber bush 20 in the latching | locking part 14a.

  The retainer 50 includes a mounting flat plate 52, a supporting side plate 54, a supporting flat plate 56, and a support pin 58.

  As shown in FIG. 2, the mounting flat plate 52 includes a flat plate main body 52 a disposed on the upper surface of the end of the arm metal 100 and a support hook that can be hooked on the pin 112 of the high-pressure insulator 110 attached to the arm metal 100. And a stop hole 52b. The end portion side of the arm metal 100 in the flat plate main body 52a is formed to have a width substantially coincident with the width of the arm metal 100, and the supporting latch hole 52b is formed in the end portion on the pin 112 side of the flat plate main body 52a. The shape is cut out in an L shape from the side of the flat plate body 52a to the end of the arm metal 100. Further, the width of the supporting latch hole 52 b is set to be slightly larger than the pin 112 and smaller than the outer diameter of the flange portion 114 fixed to the pin 112.

  The supporting side plate 54 is formed of a pair of flat plates that hang downward from both side edges of the mounting flat plate 52 at intervals larger than the lateral width of the arm metal 100 and extend in an obtuse angle direction away from the arm metal 100 at the central portion. .

  The supporting flat plate 56 is fixed to the front end portions of the supporting side plates 54 and 54, and the plate surface faces obliquely upward. The support pin 58 includes a cylindrical rod-shaped portion 58a and a disc portion 58b provided at the tip of the rod-shaped portion 58a and having a diameter larger than the diameter of the rod-shaped portion 58a. The support pin 58 is fixed to the center of the support flat plate 56.

Next, an operation procedure for installing the retaining lever 5 on the arm metal 100 will be described.
First, an operation of fixing the retainer 50 to the arm metal 100 is performed. As shown in FIG. 3, the pin 112 of the high-pressure insulator 110 protrudes from the lower surface of the arm metal 100, and a nut 116 is screwed into the protruding portion. By tightening the nut 116, the arm metal 100 is sandwiched between the nut 116 and the flange portion 114, and the high-pressure insulator 110 is fixed to the arm metal 100.

  Therefore, the worker loosens the nut below the arm metal 100 using an indirect hot wire tool and uses the high-pressure insulator 110 slightly upward to form a gap between the flange portion 114 and the arm metal 100. . Further, the worker passes the mounting flat plate 52 through the gap and passes the pin 112 through the supporting latch hole 52b. Then, after the retainer 50 is positioned, the retainer 50 is fixed to the arm 100 by tightening the nut below the arm 100.

  Next, an operation of installing the retaining insulator 5 on the retained hardware 50 is performed. Before installing the retainer insulator 5 on the retainer 50, as shown in FIG. 1, the worker opens and closes the insertion opening 15a and the pressing piece 16a is located inside the latching portion 14a. As described above, the lock unit 16 is moved. Further, the high pressure underline grip 70 is hung on the high pressure underline support portions 14b to 14d, respectively, and a predetermined portion of the high pressure underline 210 (see FIG. 3) is wound around the high pressure underline grip 70. At this time, the high voltage underline 210 is not connected to the high voltage line 200 (see FIG. 3).

  Then, the worker uses an indirect hot wire tool having a gripping function to grip a predetermined portion of the retaining lever 5, for example, the central portion of the main body 10 and bring the latching portion 14a close to the support pin 58 to The part 14 a is hooked on the support pin 58. As a result, as shown in FIG. 2, the lock portion 16 is rotated and locked so that the latching portion 14 a does not come off the support pin 58.

  The worker performs the operation of branching and connecting the high-voltage underline 210 to the high-voltage line 200 after installing the retaining insulator 5 on the arm 100.

  FIG. 3 is an explanatory view showing a state in which the high voltage underline 210 is fixed to the high pressure underline grip 70. The arm 100 of the utility pole normally supports three high-voltage lines 200, and high-voltage underlines 210 extend from the high-voltage lines 200, respectively. These high-voltage underline 210 are maintained in a state of being drawn to the high-pressure underline support portions 14b to 14d, respectively.

  For example, as shown in FIG. 4, the high-voltage underline 210 drawn to the high-voltage underline support parts 14 b to 14 d is fixed to the insulator 120 provided at the tip of the lower arm metal 102, and the cutout 300 is To the transformer 310.

  In this way, by installing the retaining lever 5 on the armor 100 and fixing the high-voltage underline 210 to the retaining lever 5, the high-voltage underline 210 can be positioned away from the utility pole. It becomes possible to safely perform the work on the pillar below.

  According to the present embodiment configured as described above, since the retainer 5 is detachable from the retained object 50, the retained object 50 is fixed to the arm metal 100, and then the retained object 50 is retained on the retained object 50. By attaching 5, the retaining insulator 5 can be installed on the arm metal 100. For this reason, it becomes possible to disperse | distribute the weight of the part which a worker handles, and it becomes possible to aim at the installation operation | work of the retaining insulator 5 by an indirect hot-line operation | work easy. Moreover, since the tension insulator 5 is provided with the latching | locking part 14a and the high voltage underline support parts 14b-14d in one plate-shaped member, it becomes possible to achieve weight reduction of the tension insulator 5. FIG. Thereby, it becomes possible to further facilitate the installation work of the retaining insulator 5 by the indirect hot wire work.

  In addition, according to the present embodiment, by having the lock portion 16, it is possible to prevent the retainer insulator 5 from being detached from the retainer object 50 after the retainer insulator 5 is attached to the retainer object 50. It becomes possible to prevent.

  Further, according to the present embodiment, since the high-voltage underline support portions 14b to 14d are separated from each other in the horizontal direction, when the high-voltage underline 210 is fixed to the high-voltage underline support portions 14b to 14d, the high-voltage underline 210 It is possible to keep the interval of the stable. In particular, according to the present embodiment, since the main body portion 10 has a cross shape, it is possible to further reduce the weight of the tension insulator 5, and to the high pressure underline support portions 14 b to 14 d, the high pressure underline 210. It becomes possible to stabilize the attitude | position of the retaining lever 5 when this is fixed.

DESCRIPTION OF SYMBOLS 1 High pressure underline drawing apparatus 5 High pressure underline drawing insulator 10 Main-body part 12a-12d Support arm 14a Latching part 14b-14d High pressure underline support part 15a-15d Insertion port 16 Lock part 16a Pressing piece part 16b Opening / closing piece part 16c times Moving shaft 20 Rubber bushing 50 High-voltage underline retainer 52 Mounting flat plate 52a Flat plate main body 52b Supporting latch hole 54 Supporting side plate 56 Supporting flat plate 58 Support pin 58a Bar-shaped portion 58b Disc portion 70 High-pressure underline grip 100 Arm 110 High pressure insulator 112 Pin 114 Flange part 116 Nut

Claims (4)

A high pressure underline retainer fixed to the end of the arm metal;
A high pressure underline detainer that is attached to the high pressure underline detainment and supports a high pressure underline grip to which the high pressure underline is fixed,
The high pressure underline retainer is
Having a support pin for supporting the high-pressure underline tension insulator;
The high pressure underline drawing insulator is
A main body made of a flat insulating member;
A hook portion formed on the main body portion and detachably hooked on the support pin;
A high-pressure underline drawing apparatus, comprising: a plurality of high-voltage underline grips formed on the main body and supporting high-pressure underline grips attached to the high-voltage underline. A lock part that opens and closes an insertion port of the support pin formed in the hook part;
The high-voltage underline tensioning device according to claim 1, wherein the lock portion closes the insertion port when the latching portion is hooked on the support pin.   The high-pressure underline support part is formed at three places on the main body part, and the latching part and the three high-pressure underline support parts are arranged at predetermined intervals, respectively. Item 3. The high-pressure underline drawing apparatus according to Item 1 or 2. 4. The high pressure underline pulling device according to claim 3, wherein the main body portion is formed in a cross shape, and the hook portion and the three high pressure underline support portions are formed at a tip portion of the cross shape. apparatus.

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