JP2019022340A - Insulator cover and insulator recovery method - Google Patents

Abstract

To provide an insulator cover which is easily attached to an insulator and can unfailingly prevent scattering and falling of insulator pieces from the insulator, and to provide an insulator recovery method.SOLUTION: An insulator cover 1 covers an insulator 100 and includes: a cover body 10; and an opening/closing clip 20 which is fixed to the cover body 10 and may open or close. The cover body 10 has an outer peripheral surface 14 and both end surfaces 15, 16 which cover the insulator and is configured to open or close in conjunction with opening/closing operation of the opening/closing clip 20. The opening/closing clip 20 has an operation piece 22, which is easily operated by insulation pincers 90, and is configured so as to be opened by operating the operation piece 22.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an insulator cover for covering an insulator and an insulator collecting method in order to prevent the insulator piece from being scattered and dropped when the installed insulator is recovered.

  When replacing a broken insulator installed at a high place, there is a risk of the insulator pieces falling to the ground due to cracks in the insulator. In general, measures such as covering the insulator with vinyl tape or installing a tool bag or sheet under the insulator are taken to prevent the insulator piece from dropping when the insulator is replaced. Yes.

  However, when exchanging the insulators by indirect hot wire work, work to cover the insulators with vinyl tape or install a tool bag etc. using a long insulating operation rod with a tool attached to the tip It is very bad and takes time.

  In order to improve the efficiency of the operation of covering the insulator by the indirect hot wire operation, a lever cover suitable for the indirect hot wire operation has been proposed (for example, see Patent Document 1). The retractable insulator cover described in Patent Document 1 is an openable and closable cover that opens and closes on the circumferential surface in a cylindrical shape, and has a gripping portion that is gripped by an insulating Yatco that is an indirect live tool, and in a state where the gripping portion is gripped. The opening of the cover is pressed against the insulator and pushed from below so that the cover can be attached to the insulator.

Japanese Patent Laid-Open No. 10-40757

  According to the retractable insulator cover described in Patent Document 1, mounting by indirect hot wire work is easy, and work efficiency is improved. However, the retaining insulator cover described in Patent Document 1 is not provided for the purpose of preventing the scattering and dropping of the insulator pieces, but simply covers the insulators in order to prevent a short circuit. It is insufficient to reliably prevent scattering and falling. Moreover, when using the retention insulator cover of patent document 1 for the covering of the broken insulator, there exists a possibility of promoting generation | occurrence | production and scattering of an insulator piece by pressing against an insulator and pushing from the bottom.

  An object of the present invention is to provide an insulator cover and an insulator recovery method that can be easily attached to an insulator and can reliably prevent the insulator pieces from scattering and dropping from the insulator.

  The present invention is an insulator cover for covering an insulator, comprising: a cover body; and an opening / closing clip fixed to the cover body and capable of opening and closing. The cover body covers the insulator and interlocks with an opening / closing operation of the opening / closing clip. The open / close clip is configured to be openable and closable, and the open / close clip includes an operated piece that can be easily operated by an indirect live tool, and is configured to open and close by operating the operated piece. It is a cover.

  Further, in the lever cover of the present invention, the cover body is formed so as to cover the periphery and end of the lever, and has a notch that can be opened and closed in conjunction with the opening and closing operation of the opening and closing clip. .

  Further, in the lever cover of the present invention, the cover body has an insertion hole through which the clevis part and / or tongue pin of the lever can be inserted so that the cover body can be attached to one of a plurality of insulators connected in series. And

  The present invention is also a method of collecting an insulator, wherein the insulator cover is attached to one of a plurality of insulators connected in series, and the insulator is recovered with the insulator cover attached.

  According to the lever cover and the lever collecting method of the present invention, when the lever is attached to the lever, it can be easily operated by gripping the operated piece of the opening / closing clip, so that it can be easily attached to the lever by indirect hot-line work. . Further, since the insulator cover can cover the periphery and front and rear (end portions) of the insulator, it is possible to reliably prevent the insulator pieces from being scattered and dropped.

It is a front view of the state which attached the insulator cover 1 of 1st Embodiment of this invention to the insulator 100. FIG. It is a side view of the state which opened the insulator cover 1 of FIG. It is the side view seen from the opposite side of FIG. It is a side view of the state which surrounded the insulator 100 in the state in which the insulator cover 1 of FIG. 1 was opened. It is the side view seen from the opposite side of FIG. FIG. 2 is a side view of a state in which the lever cover 1 of FIG. It is the side view seen from the opposite side of FIG. It is a front view of the state which mounted | wore the insulator 100 with the insulator cover 2 of 2nd Embodiment of this invention. It is a front view of the state which mounted | wore the insulator 100 with the insulator cover 3 of 3rd Embodiment of this invention.

  FIG. 1 is a front view of a state in which the lever cover 1 according to the first embodiment of the present invention is mounted on the lever 100. FIG. 2 is a side view of the state in which the lever cover 1 of FIG. 1 is opened, and FIG. 3 is a side view of the lever cover 1 as viewed from the opposite side of FIG. 4 is a side view of the state in which the lever cover 1 of FIG. 1 is opened and surrounds the lever 100, and FIG. 5 is a side view as viewed from the opposite side of FIG. 6 is a side view of the lever cover 1 of FIG. 1 attached to the lever 100, and FIG. 7 is a side view of the lever cover 1 as viewed from the opposite side of FIG.

  The lever cover 1 of the first embodiment includes a cover body 10 that covers the lever 100 so as to wrap the lever 100, and an opening / closing clip 20 that is fixed to the cover body 10 and that opens and closes. The opening / closing clip 20 is operated using an indirect hot wire tool. By doing so, it is configured to be easily attached to the insulator 100.

  An insulator 100 to which the insulator cover 1 of the present embodiment is attached is a tension insulator, and has a clevis portion 101 and a tongue pin 102 for connecting in series with each other on the distal end side and the proximal end side, respectively. The most distal insulator 100 connected in series is attached to an armrest (not shown) or the like of a utility pole via a strap 110, and the most proximal insulator 100 is a retention clamp to which an insulating cover 111 is attached. (Not shown) or the like.

  The cover main body 10 has a top-bottomed cylindrical shape, and has an incision 11 connected across the outer peripheral surface 14 and both end surfaces 15 and 16 so as to be opened and closed in conjunction with the opening and closing operation of the opening and closing clip 20. (See FIGS. 2 to 5). In addition, circular insertion holes 12 through which the clevis part 101 and the tongue pin 102 of the insulator 100 can be inserted are provided on both end faces 15 and 16, respectively. The shape of the cover body 10 is not limited to a cylindrical shape, and may be, for example, a polygonal cylindrical shape.

  The size of the cover body 10 (the insulator cover 1) is such that at least fragments are generated with respect to one insulator 100 to be mounted so that the insulator pieces can be prevented from being scattered and dropped and the insulator 100 can be attached and detached. It is preferable that the clevis portion 101 be exposed while covering the non-metal portion 105 to be obtained (see FIG. 1). If it is too large, it interferes with another insulator 100 arranged in series with the insulator 100 to be mounted and the work efficiency is lowered. Therefore, it is preferable that the insulator 100 is covered and the operability is as small as possible. An example of the outer diameter of the cover body 10 is that the outer diameter of the insulator is about 10 cm in the JIS standard (JISC 3826-1994), so the outer diameter of the cover body 10 is a little larger than that. Is preferred.

  The material of the cover main body 10 is preferably a sheet member that does not have holes or meshes so that the fine insulator pieces do not fall out, for example, a polyethylene sheet member, but the holes or You may have a mesh.

  Moreover, it is preferable that the cover body 10 has a rigidity that can be opened and closed uniformly in conjunction with the opening and closing clip 20. For this reason, when a soft sheet member is used as the material of the cover body 10, for example, an aggregate (not shown) or the like is preferably used so that the whole can be opened and closed uniformly.

  Moreover, although the member of the outer peripheral surface 14 and the both end surfaces 15 and 16 of the cover main body 10 may be integrally formed, the some sheet | seat member may be connected. In this case, it is preferable that there is no gap through which the insulator piece passes at the joint.

  The opening / closing clip 20 is the same as a so-called insulating clip or indirect seat clip, and is normally opened and closed by a spring (not shown) or the like and closed, and an indirect live tool such as an insulating jacket 90. And a pair of operated pieces 22 that are easy to operate. The opening / closing portion 21 of the opening / closing clip 20 is opened by operating the pair of operated pieces 22 to approach each other with an indirect hot wire tool.

  The opening / closing part 21 includes a pair of left and right symmetrical C-shaped opening / closing pieces 24 in a side view (see FIGS. 3, 5, and 7). Each opening / closing piece 24 is formed integrally with one different operated piece 22. The opening / closing piece 24 has a certain thickness, and one end face 15 of the cover body 10 is fixed to one end face in the thickness direction by means such as adhesion.

  In view of operability, the opening / closing clip 20 preferably has an outer shape of the opening / closing portion 21 that is substantially the same size and shape as the outer diameter of the outer peripheral surface 14 of the cover body 10. The end surface 15 of the cover body 10 fixed to the opening / closing part 21 may be separated from the cylindrical portion of the cover body 10 and fixed to the opening / closing part 21 of the opening / closing clip 20. In this case, the edge of the cylindrical portion of the cover body 10 is also fixed to the opening / closing portion 21 of the opening / closing clip 20.

  Next, a method for collecting the insulator 100 using the insulator cover 1 of this embodiment will be described. First, on the ground, the insulator Y90 90 is gripped so as to sandwich the pair of operation pieces 22 of the opening / closing clip 20 of the insulator cover 1 and approaches the insulator 100 installed at a high place to be collected. At this time, the insulating jacket 90 is operated so that the tip end is closed, and the opening / closing part 21 of the opening / closing clip 20 is opened (see FIGS. 2 and 3).

  With the opening / closing part 21 open, the insulator cover 1 is moved from the bottom to the top with respect to the insulator 100 to be collected, and the insulator 100 is surrounded so that the connecting part of the clevis part 101 and the tongue pin 102 is exposed (FIG. 4, FIG. 5). When the insulating yoke 90 is operated so that the tip end is opened while the insulator 100 is surrounded, the opening / closing portion 21 of the opening / closing clip 20 is closed (see FIGS. 6 and 7). Thereby, the attachment of the insulator cover 1 to the insulator 100 is completed.

  After the insulator cover 1 is attached to the insulator 100, the tension acting on the insulator 100 is relaxed using an indirect hot wire tensioner called a strain rod (not shown), and an arbitrary indirect hot tool is used. The connection between the clevis part 101 and the tongue pin 102 between the insulators 100 is released, and the insulator 100 is collected with the insulator cover 1 attached using the insulator scissors (not shown).

  As described above, according to the lever cover 1 of the present embodiment, the lever cover 1 can be mounted so as to cover only the lever 100 to be replaced, and the clevis part 101 and the tongue pin 102 can be disconnected in the mounted state. Therefore, it is possible to prevent the insulator pieces from being scattered and dropped from the insulator 100 to be replaced without impairing the workability from the start to the completion of the collection operation. Thereby, it is possible to ensure the safety of workers and surrounding passersby.

  In addition, according to the lever cover 1 of the present embodiment, there is little risk of contact with the lever 100 when the lever cover 1 is mounted, and there is less risk of a lever piece being generated when the lever cover 1 is in contact with the lever 100.

  Moreover, the lever cover 1 of this embodiment can open and close the opening-and-closing part 21 only by operation of the to-be-operated piece 22 of the opening-and-closing clip 20, and the approach to the insulator 100 used as attachment object also holds the to-be-operated piece 22 Since it can be performed, the work by an indirect hot wire tool such as the insulating Yatco 90 is very simple.

  FIG. 8 is a front view of a state in which the lever cover 2 according to the second embodiment of the present invention is mounted on the lever 100. The same components as those of the insulator cover 1 of the first embodiment shown in FIG. 1 to FIG. The lever cover 2 of the second embodiment has the same basic configuration as the lever cover 1 of the first embodiment, but the size of the opening / closing piece 34 of the opening / closing portion 21 of the opening / closing clip 30 is the same as that of the first embodiment. The outer peripheral surface 14 of the cover body 10 is fixed to the inner peripheral surface of the opening / closing piece 34 by means such as adhesion.

  According to the lever cover 2 of the present embodiment, the opening / closing clip 30 is larger than the lever cover 1 of the first embodiment, but the overall length can be reduced while maintaining a volume that can be covered by the cover body 10. Become.

  FIG. 9 is a front view showing a state in which the lever cover 3 according to the third embodiment of the present invention is mounted on the lever 100. The same components as those of the lever cover 2 of the second embodiment shown in FIG. The lever cover 3 of the third embodiment has the same basic configuration as the lever cover 2 of the second embodiment, but the shape of the cover main body 40 and the position of the opening / closing clip 30 with respect to the cover main body 40 are different.

  The lever cover 3 of the present embodiment is tapered so that the cover main body 40 is along the lever 100, and the opening / closing clip 30 is disposed at the center of the cover main body 40. Like the lever cover 3 of this embodiment, the shape and arrangement of the components of the lever cover of the present invention can be appropriately changed in consideration of workability and the like.

  As described above, the lever cover and the lever collecting method of the present invention have been described using the lever covers 1, 2, and 3 of the first to third embodiments. However, the lever cover and the lever collecting method of the present invention are the same as those of the above embodiment. It is not limited and can be modified without changing the gist. For example, the cover main bodies 10 and 40 may be provided with hinges (not shown) that smoothly open and close.

  Moreover, in the lever cover 2 of 2nd Embodiment, the opening / closing clip 30 may be comprised so that the cover main body 10 may be enclosed over a full length.

  The lever cover and the lever collecting method of the present invention can be applied not only to the tension insulator shown in the figure but also to replacement and recovery of a broken pin insulator or the like. What is necessary is just to change suitably the shape and arrangement | positioning of the cover main bodies 10 and 40 and the opening-and-closing clips 20 and 30 according to the kind of insulator used as mounting | wearing object.

  Also, a part of the insulator 100 (for example, a clevis portion) is formed at the edge of the insertion hole 12 so that the insulator pieces are not scattered and dropped from the gap between the insulator 100 with the insulator covers 1, 2, 3 and the cover bodies 10, 40. 101 and / or tongue pin 102), for example, an elastic body such as sponge or rubber may be provided.

  As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification. Therefore, such changes and modifications are interpreted as being within the scope of the invention defined by the claims.

1, 2, 3 Insulator cover 10, 40 Cover main body 11 Notch 12 Insertion hole 14 Outer peripheral surface 15, 16 End surface 20, 30 Opening / closing clip 22 Operated piece 90 Insulating jacket 100 Insulator 101 Clevis part 102 Tongue pin

Claims (4)

An insulator cover covering the insulator,
A cover main body, and an open / close clip fixed to the cover main body and capable of opening and closing;
The cover body covers the insulator and is configured to be able to open and close in conjunction with the opening and closing operation of the opening and closing clip.
The lever cover has an operated piece that can be easily operated by an indirect live tool, and is configured to be opened and closed by operating the operated piece.   The said cover main body is formed so that the circumference | surroundings and edge part of an insulator may be covered, and it has a notch so that opening and closing is possible in connection with the opening / closing operation | movement of the said opening / closing clip. .   3. The cover body according to claim 1, wherein the cover body has an insertion hole through which a clevis part and / or a tongue pin of the insulator can be inserted so that the cover body can be attached to one of a plurality of insulators connected in series. The insulator cover described. The insulator cover according to any one of claims 1 to 3 is attached to one of a plurality of insulators connected in series, and the insulator is collected in a state in which the insulator cover is attached. Eggplant collection method.

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