JP4421037B2 - Eggplant cover - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an insulator cover for curing an insulator.
[0002]
[Prior art]
Conventionally, as shown in FIG. 11, an insulator 113 for insulating and supporting the electric wire 112 is attached to the steel tower 111 of the transmission line. The insulator 113 includes a plurality of insulators 113a made of porcelain arranged in a row, and a support member 113b that supports the insulator 113a. Both ends of the support member 113b are connected to the tower 111 and the electric wire 112, respectively. ing.
[0003]
By the way, for example, when the steel tower 111 is painted, the paint scatters and adheres to the insulator 113a of the insulator 113, so there is a concern that the insulation property is lowered. In order to solve this, the worker attaches the insulator cover 114 to the insulator 113 and cures the insulator 113a before painting the steel tower 111 as shown in FIG. 12, so that the scattered paint adheres to the insulator 113a. Is prevented.
[0004]
The lever cover 114 is composed of a cover body 115 that surrounds the outer periphery of the lever 113. The cover body 115 is a rectangular sheet made of synthetic resin. When attaching to the insulator 113, the cover main body 115 is wound around the insulator 113a of the insulator 113, and then the central portion of the cover main body 115 is wound around the rope 116 to be secured. Further, the peripheral edge 117 of the cover main body 115 that forms openings on both sides of the insulator 113 is tied to the support member 113b with a rope 116.
[0005]
[Problems to be solved by the invention]
However, when attaching and removing the insulator cover 114 to the insulator installed at a high place, the wind is stronger than that at the low place. There was a problem that it took time to work.
[0006]
This invention is made | formed in view of this conventional subject, and it aims at providing the insulator cover which can shorten the time concerning an attachment and removal operation | work.
[0007]
[Means for Solving the Problems]
The challenge in the first aspect of the present invention in order to solve a cover body which surrounds the outer periphery of the insulator, before Symbol insulator extending direction et spaced on the cover body along the Re ring shape it and a multiple frame members that part having a cut open shape of the provided each frame member so that each frame member is opened in the same direction, a portion of the side surface over the entire length It formed in the partial opening shape which opens.
[0008]
In such a configuration, the cover body is curved along the outer peripheral portion of the insulator by the skeleton member and has a bellows shape in the extending direction of the insulator, so that the cover body is expanded and contracted in the extending direction of the insulator while being curved. It becomes possible.
[0009]
For this reason, when attaching to the insulator, the cover body, which has been bent in advance and shortened in length, can be extended from the one end side of the insulator to the other end side of the insulator, and when removed from the insulator, the cover body can be extended. The main body can be contracted to the other end side of the insulator while being curved from one end side of the insulator. Thereby, at the time of attachment and removal, since it can suppress that a cover main body fluctuates with a wind, work efficiency can be improved.
[0010]
Moreover, since the cover main body is kept curved by the skeleton member even when attached to the insulator, it is possible to prevent the cover main body from being turned by the wind.
[0011]
Moreover, when accommodating, it can be made compact by shortening the length while keeping the cover body in a curved state, and can be made ready for use immediately.
[0012]
According to a second aspect of the present invention, a pair of engaging portions that are engaged with each other are spaced apart in the length direction from each edge portion of the cover main body facing each other across the side opening portion that opens to the side surface. A plurality of the edge portions facing each other by the engaging portions are connectable.
[0013]
In such a configuration, when attaching to the lever, both edges of the cover body can be fixed by engaging the pair of engaging portions with each other, and when removing from the lever, the engaging portions are released. Both edges of the cover body can be removed. For this reason, working efficiency can be further improved compared with the case where a rope is prepared separately and both edges of the cover body are fixed or removed.
[0014]
According to a third aspect of the present invention, there is provided an insertion portion through which a string is inserted along a peripheral edge portion of the cover main body that forms openings on both sides of the insulator when the outer peripheral portion of the insulator is surrounded. It is assumed.
[0015]
In this configuration, when attaching to the insulator, the cover body can be fixed to the insulator by tightening the peripheral edge with a string inserted through the insertion portion and tied to both sides of the insulator. Then, the cover body can be removed from the insulator by loosening the peripheral edge. For this reason, compared with the case where a rope is prepared separately and a cover main body is fixed to a lever or removed from a lever, working efficiency can be improved further.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is a side view of an insulator 1 showing an embodiment of the present invention, and FIG. 2 is a side view of an insulator cover 11 of the present invention for curing the insulator 1. The insulator 1 is composed of a plurality of insulators 1a made of porcelain arranged in a row and a support member 1b that supports the insulator 1a. Both ends of the support member 1b are connected to a tower 2 and an electric wire 3, respectively. ing.
[0018]
On the other hand, the insulator cover 11 includes a cover main body 12 that surrounds the outer peripheral portion of the insulator 1 and a plurality of skeleton members provided at intervals on the inner peripheral surface 13 of the cover main body 12 along the extending direction A of the insulator 1. 21. The cover main body 12 is obtained by bending a rectangular sheet made of synthetic resin along the outer peripheral portion of the insulator 1 with a skeleton member 21.
[0019]
FIG. 3 is a longitudinal sectional view of the skeleton member 21. The skeleton member 21 has a shape in which a part of an annular shape is cut open, and each skeleton member 21 is open in the same direction and is curved along the inner peripheral surface 13 of the cover body 12. 22 and a synthetic resin covering sheet 23 coated with the piano wire 22 and ultrasonically welded to the inner peripheral surface 13.
[0020]
The cover body 12 is maintained in a curved state along the outer peripheral portion of the insulator 1 by the piano wire 22 of the skeleton member 21 and has a bellows shape along the extending direction A of the insulator 1. The cover main body 12 can be expanded and contracted in the extending direction A of the lever 1 with the curved state.
[0021]
Further, the cover body 12 is provided with a pair of engaging portions 31 that are engaged with each other at both edge portions 14 that are fitted when the outer peripheral portion of the insulator 1 is surrounded. FIG. 4 is an enlarged view of the engaging portion 31. The engaging portion 31 includes a ring-shaped first clasp 33 fixed to the lower edge portion 14a of both the edge portions 14 of the cover body 12 by a lower fixing bracket 32a, and an upper fixing bracket to the upper edge portion 14b. It is composed of a C-shaped hook 35 hung on a ring-shaped second clasp 34 fixed by 32b.
[0022]
One end 35a of the hook 35 is bent inward with the pin 35b as an axis. For this reason, the tip 33a of the first clasp 33 is pressed against the end 35a of the hook 35, and the first clasp 33 is hooked on the hook 35 and engaged with each other as shown in FIG. Both edges 14 of the main body 12 are fixed.
[0023]
Further, the cover body 12 is provided with an insertion portion 42 through which the string 41 is inserted along the peripheral edge portion 16 that forms the opening 15 on both sides of the insulator 1 when the outer periphery of the insulator 1 is surrounded. FIG. 6 is an enlarged view of the peripheral edge portion 16. The insertion portion 42 has a bag shape in which the edge 16a of the peripheral edge portion 16 bent inward is sewn to the inner peripheral surface 13 of the cover body 12, and is inserted into the insertion portion 42 from both opening edges 42a. Both sides 41a of the string 41 are protruding. For this reason, by pulling the both sides 41a of the string 41, the peripheral edge portion 16 is contracted and the opening portion 15 is tightened.
[0024]
In such a configuration, when attaching to the insulator 1, the operator brings the cover body 12 that has been previously curved and shortened in length to the installation location of the insulator 1, and as shown in FIG. The portion 14 is expanded to surround the support member 1b on the electric wire 3 side, the both sides 41a of the cord 41 are pulled and the peripheral edge portion 16 is shortened until there is no gap with the support member 1b, and then the cord 41 is tied to the support member 1b.
[0025]
Next, the insulator 1a of the insulator 1 is put into the cover main body 12 through the opening 15 while the cover main body 12 is stretched in the direction of the steel tower 2 (arrow B direction in FIG. 7). At this time, since the cover body 12 is maintained in a curved state by the skeleton member, the cover body 12 can be prevented from flying with the wind.
[0026]
Further, as the cover body 12 is extended, the first clasp 33 is hooked on the hook 35 and engaged with each other as shown in FIG. The edge 14 is fixed. For this reason, both the edge parts 14 of the cover main body 12 can be fixed easily compared with the case where a rope is prepared and wound around the cover main body 12 to be tied up.
[0027]
Then, as shown in FIG. 8, after extending the cover body 12 to surround the insulator 1a on the tower 2 side, the support member 1b on the tower 2 side is further surrounded, and both sides 41a of the string 41 are pulled to support the support member 1b. The peripheral edge portion 16 is contracted until the gap disappears, and the string 41 is tied to the support member 1b. As a result, the cover main body 12 can be fixed to the insulator 1 in a state of surrounding the insulator 1a of the insulator 1. For this reason, the cover main body 12 can be easily fixed to the insulator 1 as compared with the case where a rope is prepared and the peripheral edge portion 16 is tied and fixed to the support member 1b.
[0028]
Thus, the work efficiency for attaching the insulator cover 11 is improved by the skeleton member 21, the engaging portion 31, the string 41, and the insertion portion 42 provided in the cover main body 12, so that the time required for the attachment work can be shortened. .
[0029]
In addition, even when the insulator cover 11 is attached to the insulator 1, the cover body 12 is kept curved by the skeleton member 21, and therefore it is possible to prevent the cover body 12 from being turned by wind. Therefore, the curing performance of the insulator 1 can be enhanced.
[0030]
And when removing the insulator cover 11 from the insulator 1, after loosening the peripheral part 16 of the cover main body 12 by unwinding the string 41 tied to the supporting member 1b by the side of the electric wire 3 as shown in FIG. The insulator 1a of the insulator is taken out from the inside of the cover body 12 through the opening 15 while shrinking 12 in the direction of the steel tower 2 (arrow C direction in FIG. 9). Also at this time, since the cover body 12 is maintained in a curved state by the skeleton member 21, it is possible to prevent the cover body 12 from flying with the wind.
[0031]
Further, as the cover main body 12 is contracted, the cover main body 12 is released by releasing the first clasp 33 from the hook 35 as shown in FIG. Remove both edges 14 of. For this reason, both the edge parts 14 of the cover main body 12 can be removed easily compared with the case where the rope which was wound around the cover main body 12 and was tied and unfastened is removed.
[0032]
Then, as shown in FIG. 10, after the cover body 12 is shrunk and taken out to the insulator 1a on the tower 2 side, the cord 41 tied to the support member 1b on the tower 2 side is further unwound and the periphery of the cover body 12 The cover body 12 can be removed from the insulator 1 by loosening the portion 16. For this reason, the cover main body 12 can be easily removed from the insulator 1 as compared with the case where the peripheral edge portion 16 is loosened after the rope with the peripheral edge portion 16 tied to the support member 1b is unwound and removed.
[0033]
Thus, when removing the insulator cover 11, the work efficiency is improved by the skeleton member 21, the engaging portion 31, the string 41 and the insertion portion 42 provided on the cover body 12, so that the time required for the removing operation is shortened. can do.
[0034]
Further, when the insulator cover 11 is accommodated, the length can be reduced while keeping the cover body 12 in a curved state, and the insulator cover 11 can be immediately used. it can. Therefore, it is not necessary to take a storage space, and usability can be improved.
[0035]
In the present embodiment, the cover body 12 is provided with the skeleton member 21, the engaging portion 31, and the insertion portion 42. However, if the cover body 12 is provided with the skeleton member 21, the insulator cover 11 is attached. In addition, the time required for the removal work can be sufficiently shortened.
[0036]
The skeleton member 21 is not limited to the inner peripheral surface 13 of the cover body 12 and may be provided on the outer peripheral surface. Furthermore, as the structural member of the skeleton member 21, the curved piano wire 22 and the covering sheet 23 are used. However, even when a plastic bending member is used, for example, the same effect as in the present embodiment can be obtained. Obtainable.
[0037]
Moreover, although the insertion part 42 which penetrates the string 41 was formed in the bag shape along the peripheral part 16 of the cover main body 12, the penetration hole which inserts the string 41 alternately along the peripheral part 16 of the cover main body 12 is formed, for example Alternatively, a belt-like sheet that allows the string 41 to pass along the peripheral edge portion 16 may be provided like a belt passing structure provided in the trousers.
[0038]
Further, the engaging portions 31 provided on both edge portions 14 of the cover main body 12 hang the C-shaped hook 35 on the second clasp 34 fixed to the upper fixing bracket 32b. May be directly hung on the upper fixing bracket 32b and fixed to the first clasp 33 to form an engaging portion.
[0039]
【The invention's effect】
As described above, in the first aspect of the invention, the cover main body can be expanded and contracted in the extending direction of the lever while the cover body is curved by the skeleton member. For this reason, when attaching to the insulator, the cover body, which has been bent in advance and shortened in length, can be extended from the one end side of the insulator to the other end side of the insulator, and when removed from the insulator, the cover body can be extended. The main body can be contracted to the other end side of the insulator while being curved from one end side of the insulator. Thereby, at the time of attachment and removal, since it can suppress that a cover main body fluctuates with a wind, work efficiency can be improved. Therefore, it is possible to reduce the time required for the attachment and removal work.
[0040]
Moreover, since the cover main body is kept curved by the skeleton member even when attached to the insulator, it is possible to prevent the cover main body from being turned by the wind. Therefore, the curing performance of the eggplant can be enhanced.
[0041]
Moreover, when accommodating, it can be made compact by shortening the length while keeping the cover body in a curved state, and can be made ready for use immediately. Therefore, it is not necessary to take a storage space, and usability can be improved.
[0042]
In the invention according to claim 2, both edges of the cover body can be fixed by engaging the pair of engaging portions with each other when attaching to the insulator, and when removing from the insulator, the engagement is made. By releasing the part, both edges of the cover body can be removed. For this reason, working efficiency can be further improved compared with the case where a rope is prepared separately and both edges of the cover body are fixed or removed. Therefore, it is possible to further reduce the time required for the attachment and removal work.
[0043]
Further, in the invention according to claim 3, the cover body can be fixed to the insulator by tightening the peripheral portion with a string inserted through the insertion portion when being attached to the insulator, and tied to both sides of the insulator, and is removed from the insulator. At that time, the cover body can be removed from the insulator by unwinding the string and loosening the peripheral edge. For this reason, compared with the case where a rope is prepared separately and a cover main body is fixed to a lever or removed from a lever, working efficiency can be improved further. Therefore, it is possible to further reduce the time required for the attachment and removal work.
[Brief description of the drawings]
FIG. 1 is a side view of an insulator showing an embodiment of the present invention.
FIG. 2 is a side view of an insulator cover.
FIG. 3 is a longitudinal sectional view of a skeleton member.
FIG. 4 is an enlarged view of an engaging portion.
FIG. 5 is a diagram showing an engaged state of an engaging portion.
FIG. 6 is an enlarged view of a peripheral edge portion.
FIG. 7 is a diagram showing an initial state when the insulator cover is attached.
FIG. 8 is a diagram showing a state in which an insulator cover is attached.
FIG. 9 is a diagram showing an initial state when the insulator cover is removed.
FIG. 10 is a diagram showing an end state when the insulator cover is removed.
FIG. 11 is a schematic diagram of a steel tower of a transmission line.
FIG. 12 is a view showing a state in which a conventional insulator cover is attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 insulator 11 insulator cover 12 cover main body 14 edge 15 opening part 16 peripheral part 21 frame | skeleton member 31 engaging part 41 string 42 insertion part

Claims (3)

A cover body which surrounds the outer periphery of the insulator, multiple backbone that along the extending direction of the front Symbol insulator having a said cover body in Re et al spaced ring-shaped part is cut open shape will and a member,
An insulator cover, wherein each skeleton member is provided so that each skeleton member opens in the same direction, and a part of a side surface is formed in a partially open shape that opens over the entire length . A plurality of pairs of engaging portions that are engaged with each other are provided at each edge portion of the cover main body facing each other across the side surface opening portion that is open on the side surface. The insulator cover according to claim 1, wherein the opposing edges are connectable .   3. An insertion portion through which a string is inserted is provided along a peripheral edge portion of the cover main body that forms openings on both sides of the insulator when enclosing the outer peripheral portion of the insulator. The insulator cover described.

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