JPH0872939A - Protective cover for insulator - Google Patents

Abstract

PURPOSE: To cover the whole of an insulator and to bind/unbind a binding part provided in a flange part at a breath by a method wherein the insulator is fitted in a recessed part provided in an inner surface of a semicylindrical body, and the other semicylindrical body is folded at a hinge part. CONSTITUTION: Semicylindrical bodies 8a of a cover body 8 are opened about a hinge part 14 as an origin. A porcelain-made wire support part 2 of an insulator 1 is contained in a recessed part 9. A recessed groove 4 is held by a projected part 10. A ring groove of a neck part is fastened by a protuberance 11. A small-diameter part 7 is fastened by a projected part 12. In this manner, the porcelain-made wire support part 2 is fixed. Furthermore, the wire support part 2 is cushioned by a recessed and projected step part provided in the recessed part 9 correspondingly to a large-diameter part 6 of the wire support part 2. The whole of the porcelain-made wire support part 2 easy to break is protected. The semicylindrical bodies 8a are folded double so that the open end is closed. The semicylindrical bodies 8a are combined into a cylindrical form by pressing and fastening buttons 17 into opposed circular holes 16, thereby covering and protecting the insulator 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protection for a synthetic resin insulator for protecting an insulator mounted on a utility pole or the like from storage or transportation to a state of being mounted on the utility pole without damage. It is about the cover.

[0002]

2. Description of the Related Art Conventionally, a protective cover for an insulator of this type is formed of two semi-cylindrical bodies, which are made of recycled base paper such as newspaper waste paper as a material and are vertically divided into two parts with an uneven shape in which the inner surface covers the surface of the insulator. It is known that one side end is formed into a shape in which it is connected as a hinge portion. Since the protective cover for insulators made from recycled base paper is not strong enough to provide the connecting structure on the open end side facing the hinge part, the rubber cover is spaced over the outer peripheral surface with the insulator covered. It was lapped multiple times, tied up and stored, and the insulator was protected against transportation. When installing the insulator on a power pole, etc., the protective cover for the insulator may dissolve due to moisture such as rainwater.Therefore, remove the rubber band from the protective cover for the insulator, remove the cover, and then protect the insulator. The net was attached to the insulator and mounted on the utility pole.

[0003]

As described above, the conventional protective cover for an insulator is uneconomical because the protective cover is required separately for storing and transporting the insulator and for mounting the insulator on the electric pole. In addition, when storing or transporting, wrap multiple rubber bands around the insulator with the insulator protective cover wrapped around and tightly fix it, and do not remove the rubber bands from the insulator protective cover when mounting the insulator on the utility pole. However, it is necessary to take out the insulator from the insulator protection cover and reattach the insulator protection net to the insulator, which is very troublesome and troublesome. Furthermore, the conventional protective cover for insulators is made of recycled base paper, so the material cost is low, but
It is very vulnerable to moisture or water, and it is disposable after one use, so it is difficult to dispose of it after use. In addition, if it gets wet with rainwater, etc., it may become water-containing and weak, and its protective function may be lost. Therefore, an object of the present invention is to provide an easy-to-use protective cover for an insulator, which can solve all the problems of the related art.

[0004]

In order to achieve the above object, the protective cover for an insulator of the present invention has a concave portion for accommodating a longitudinal half of the insulator on the inner surface of the semi-cylindrical body, which conforms to the outer shape of the insulator. A cover which is formed by a concave-convex surface that extends, and has flanges extending at both left and right ends and an upper end of the recess, and two semi-cylindrical bodies are arranged side by side to join the left and right flanges to form a hinge part that can be opened and closed. The main body is made of synthetic resin, and a coupling portion that is detachably coupled to the other left and right flanges of each semi-cylindrical body of the cover body is provided.

[0005]

According to the protective cover for an insulator of the present invention constructed as described above, the insulator is fitted in the concave portion provided on the inner side surface of the semi-cylindrical body, and the other semi-cylindrical body is bent from the hinge portion. With this, the entire insulator can be covered and the joining portion provided on the collar portion can be joined in a one-touch manner, and this joining can be released in a one-touch manner.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 7 shows a state in which a solid pin insulator (hereinafter simply referred to as an insulator) is housed in an insulator protection cover according to the present invention to be protected, and the insulator 1 is a lower end of a porcelain electric wire support portion 2. , A pin 3 attached to an arm (gold) erected on the electric pole is formed so as to project. The electric wire support portion 2 is provided with a concave groove 4 for accommodating the electric wire at the top thereof, and a neck ring groove 5 for fitting and sandwiching a binding metal fitting for supporting the electric wire immediately below the concave groove 4.
Is formed in a circular shape, and a large diameter portion 6 and a small diameter portion 7 are provided below the neck annular groove 5 to secure a surface extension distance.

Reference numeral 8 denotes an insulator protection cover body according to the present invention. The cover body 8 is divided and formed into semi-cylindrical bodies 8a and 8b for accommodating a longitudinal half body of the porcelain insulator 1. The semi-cylindrical bodies 8a and 8b are provided with recessed portions 9 and 9 for accommodating the longitudinal half bodies of the insulator 1 in a symmetrical shape, and further, in a concavo-convex surface conforming to the outer shape of the wire supporting portion 2 and the like. A protrusion 10 for mooring the recessed groove 4 is provided on the top of the protrusion, and a protrusion 11 for engaging the neck ring groove 5 is formed immediately below the protrusion 10, and a protrusion 12 for engaging the small-diameter portion 7 is formed on the lower portion. Forming a circle. Further, flange portions 13a, 13b and 13c are respectively provided at both left and right ends and upper ends of the recessed portions 9, 9 so that the planar shape is a vertically long rectangle. The lower ends of the respective semi-cylindrical bodies 8a and 8b are opened by the concave portions 9 and 9.

Then, the collar portion 13b of the one semi-cylindrical body 8a
And the side edge of the flange portion 13a of the other semi-cylindrical body 8b is joined to form a hinge portion 14 that can be opened and closed. In addition, the concave portion 9,
Reference numeral 9 is a portion corresponding to the large-diameter portion 6 of the electric wire support portion 2, and is provided with a plurality of uneven step portions in the horizontal direction. .
The cover body 8 having such a shape is made of recycled resin such as polyethylene as a material and is integrally formed with a relatively thin thickness, but the recycled resin may not be used as a material.

Then, circular holes 15, 15 and 16, 16 are bored so as to oppose the flange portions 13a and 13b on the open end side of the respective semi-cylindrical bodies 8a and 8b at upper and lower positions, respectively.
5, the shaft portions 18, 18 of the buttons 17, 17 are fitted, and the circular holes 16, 16 engage the shaft portions 18, 18 of the buttons 17, 17 to lock the gooseneck portions 19, 19. Used as a pour hole.

The thus-formed protective cover for an insulator of the present invention expands each of the semi-cylindrical bodies 8a and 8b of the cover body 8 from the hinge portion 14 as a starting point, and makes the porcelain insulator of the insulator 1 in the concave portions 9 and 9. When the electric wire support portion 2 is housed, the convex groove 10 moors the concave groove 4, the protrusion 11 locks the neck ring groove 5, and the protruding portion 12 locks the small diameter portion 7 of the porcelain. The electric wire support portion 2 is fixed, and the electric wire support portion 2 made of porcelain is buffered by the uneven step portions formed in the concave portions 9 and 9 corresponding to the large diameter portion 6 of the electric wire support portion 2 and is easily damaged. Protect the whole.

Next, the respective semi-cylindrical bodies 8a and 8b are folded in two to close the open ends, and the buttons 17 and 17 are pushed into the opposite circular holes 16 and 16 to be locked, whereby the semi-cylindrical bodies 8a and 8b are engaged.
After b is assembled into a cylindrical shape, the insulator 1 is covered and protected, and in this state, the pin 3 of the insulator 1 is attached and fixed to the arm (gold) on the electric pole, and then the buttons 17 and 17 with the work tool of the hot stick head. Are removed from the circular holes 16 and 16 and the respective semi-cylindrical bodies 8a and 8b are expanded to remove the cover body 8 from the insulator 1 to prepare for the next use.

FIG. 4 shows an embodiment in which the structure of the connecting portion is different. In this embodiment, one half cylinder 8
A hook hook 20 having a L-shaped cross section and having a required length is projected from the tip of the collar portion 13b of the b.
By sandwiching the collar portion 13a of a, the semi-cylindrical bodies 8a and 8b
Is held in a cylindrical shape. In this way, the coupling in which the collar portion 13a of the other semi-cylindrical body 8a is locked to the hook hook 20 with better workability than in the case where the buttons 17 and 17 are engaged with the circular holes 16 and 16 as described above. The bodies 8a and 8b can be combined.

[0013]

As described above, the protective cover for an insulator according to the present invention is made of recycled synthetic resin as in the case of recycled base paper such as conventional newspaper waste paper, and has two semi-cylindrical bodies. It is possible to configure a joining portion for joining and joining the semi-cylindrical bodies to the cover body formed separately.
Since these coupling portions can be coupled and accommodated in a one-touch manner, the insulator can be reliably protected without trouble. Therefore, storage of insulators as in the past,
Unlike the case where separate protective covers were used when transporting and mounting the insulator on the utility pole, the insulator is stored in the cover body as it is, stored and transported as well as the insulator pin on the utility pole. The work to attach to the gold) can be done without damaging the insulator pins, and after the work is completed, the cover body can be removed from the insulator by one-touch removing the joint part of the cover body with a tool such as a hot stick. It will never be damaged and can be reused.

[Brief description of drawings]

FIG. 1 is a perspective view of an insulator protection cover with each half cylinder opened.

FIG. 2 is an external perspective view of an insulator protection cover with each half cylinder closed.

FIG. 3 is a partially enlarged cross-sectional view showing a joint portion.

FIG. 4 is a perspective view of the insulator protection cover in a state in which the respective semi-cylindrical bodies are opened, showing another embodiment of the coupling portion.

FIG. 5 is a perspective view showing a state in which the respective semi-cylindrical bodies are combined together.

FIG. 6 is a partially enlarged cross-sectional view showing the same coupling portion.

FIG. 7 is a perspective view showing a state in which an insulator is housed in one half cylinder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulator 8 Cover body 8a, 8b Semi-cylindrical body 9,9 Recessed part 13a, 13b, 13c Collar part 14 Hinge part 16,16 Circular hole (engagement hole) 17,17 Button 20 Hook hook

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication H01B 17/00 Z (72) Inventor Hiroshi Kanda 2-29-5 Nakata-cho, Handa-shi, Aichi (72) ) Inventor Michio Itano 2-56, Sudamachi, Mizuho-ku, Nagoya, Aichi (72) Inventor Mashiko, Ogawa 38-2 Tohomotomachi, Kuwana-shi, Mie (72) Inventor Kei Akiyama 1302 Oya, Seki-shi, Gifu -2

Claims (3)

[Claims] 1. A concave portion for accommodating a longitudinal half body of an insulator is formed on an inner surface of a semi-cylindrical body by an uneven surface conforming to the outer shape of the insulator, and a collar is provided at both left and right ends and an upper end of the concave portion. Part of the cover is formed by arranging two semi-cylindrical bodies and connecting one of the left and right flanges to form a hinge part that can be opened and closed by a synthetic resin. Protective cover for insulators, which is provided with a connecting portion that is detachably connected to the collar portion of the insulator. 2. The protective cover for an insulator according to claim 1, wherein the coupling portion is provided with an engaging hole in one of the semi-cylindrical bodies and a button in which the other semi-cylindrical body is fitted into the engaging hole. . 3. The connecting part is configured so that a hook hook is projected from the tip of one of the semi-cylindrical bodies and the hook is clamped by the tip of the flange of the other semi-cylindrical body. Protective cover for insulator.